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Wong HJ, Lin NH, Teo YN, Syn NL, Teo YH, Sia CH. Evaluation of the Lifetime Benefits of Metformin and SGLT2 Inhibitors in Type 2 Diabetes Mellitus Patients with Cardiovascular Disease: A Systematic Review and Two-Stage Meta-Analysis. Am J Cardiovasc Drugs 2024:10.1007/s40256-024-00640-w. [PMID: 38589722 DOI: 10.1007/s40256-024-00640-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Metformin and sodium-glucose cotransporter-2 (SGLT2) inhibitors have demonstrated cardiovascular benefits but their comparative effects on mortality in type 2 diabetes mellitus (T2DM) patients with cardiovascular disease (CVD) are unknown. Hence, we evaluated and compared lifetime benefits arising from metformin or SGLT2 inhibitors in T2DM patients with CVD. MATERIALS AND METHODS Studies published in the PubMed, EMBASE and CENTRAL databases before 28 October 2023 were retrieved. Treatment effects of metformin against US FDA-approved SGLT2 inhibitors in T2DM patients with CVD were evaluated and lifetime gains in event-free survival were estimated from our primary endpoints of all-cause and cardiovascular mortality. Risk ratios were derived to assess their impact on secondary outcomes such as major adverse cardiovascular events and hospitalizations for heart failure. RESULTS Overall, 14 studies were included. Five studies published Kaplan-Meier curves for the primary outcome of all-cause mortality. Individual participant data were reconstructed from these Kaplan-Meier curves, from which we conducted our two-stage meta-analysis. Participants receiving metformin and SGLT2 inhibitors experienced a reduction in the risk for all-cause mortality as compared with those not taking metformin and placebo. However, participants receiving SGLT2 inhibitors had a higher all-cause mortality (hazard ratio 1.308, 95% confidence interval 1.103-1.550) versus metformin. Treatment with metformin was estimated to offer an additional 23.26 months of survival free from all-cause mortality versus 23.04 months with SGLT2 inhibitors. CONCLUSIONS In patients with T2DM and CVD, metformin and SGLT2 inhibitors were associated with substantially lower all-cause mortality rates and slightly longer life expectancies than in patients without. Metformin presented an advantage over SGLT2 inhibitors in reducing all-cause mortality.
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Affiliation(s)
- Hon Jen Wong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Norman H Lin
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Yao Neng Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nicholas L Syn
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Yao Hao Teo
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Ching-Hui Sia
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore.
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Wong SY, Lee ARYB, Sia AHJ, Wo YJ, Teo YH, Teo YN, Syn NL, Ong CC, Teo LL, Yeo TC, Poh KK, Kong WK, Wong RC, Sia CH. Effects of Glucagon-Like Peptide-1 Receptor Agonist (GLP-1RA) on Cardiac Structure and Function: A Systematic Review and Meta-Analysis of Randomized-Controlled Trials. Cardiovasc Drugs Ther 2024; 38:371-389. [PMID: 35819544 DOI: 10.1007/s10557-022-07360-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/10/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE Recent trials suggest glucagon-like peptide-1 receptor agonists (GLP-1RAs) may have a cardioprotective role by reducing major adverse cardiac events, stroke mortality and heart failure-related hospitalisations. We examined whether and how GLP-1RAs affect cardiac function in cardiovascular and metabolic diseases including type 2 diabetes, heart failure and post-myocardial infarction. METHODS In this PRISMA-adherent systematic review and meta-analysis, three databases were searched from inception to July 2021 and registered on PROSPERO (CRD42021259661). RESULTS 20 reports of 19 randomized placebo-controlled trials including 2062 participants were meta-analyzed. Among type 2 diabetes patients, GLP-1RA resulted in improved systolic function measured by circumferential strain (mean difference [MD]= -5.48; 95% CI: -10.47 to -0.49; P= 0.03; I2= 89%) and diastolic dysfunction measured by E / A (MD= -0.15; 95% CI: -0.25 to -0.05; P= 0.003; I2= 0%). For post-myocardial infarction patients, GLP-1RA reduced infarct size (g) (MD= -5.36; 95% CI: -10.68 to -0.04; P= 0.05; I2= 78%). Liraglutide, but not exenatide, demonstrated improved systolic function, by increasing left ventricular ejection fraction (MD= 4.89; 95% CI: 3.62 to 6.16; P< 0.00001; I2= 0%) and reducing left ventricular end-systolic volume (MD= -4.15; 95% CI: -7.49 to -0.81; P = 0.01; I2= 0%). Among heart failure patients, no significant changes were noted. CONCLUSION GLP-1RA drugs may improve systolic and diastolic function in type 2 diabetes and reduce infarct size post-acute myocardial infarction with no demonstrable effect on cardiac function in heart failure. Tailored recommendations for the use of GLP-1RAs for cardioprotection should be considered for each patient's condition.
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Affiliation(s)
- Shi Yin Wong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | - Aaron Hon Jiun Sia
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yu Jun Wo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Neng Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nicholas L Syn
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ching-Ching Ong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Diagnostic Imaging, National University Hospital, Singapore, Singapore
| | - Lynette L Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Diagnostic Imaging, National University Hospital, Singapore, Singapore
| | - Tiong-Cheng Yeo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Kian-Keong Poh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - William K Kong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Raymond C Wong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Ching-Hui Sia
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore.
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Tan CJW, Koh JWT, Tan BKJ, Woon CY, Teo YH, Ng LS, Loh WS. Association Between Hearing Loss and Cardiovascular Disease: A Meta-analysis. Otolaryngol Head Neck Surg 2024; 170:694-707. [PMID: 38063267 DOI: 10.1002/ohn.599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 10/11/2023] [Accepted: 11/02/2023] [Indexed: 02/28/2024]
Abstract
OBJECTIVE Hearing loss (HL) has been postulated to be linked to cardiovascular diseases (CVDs) via vascular mechanisms, but epidemiological associations remain unclear. The study aims to clarify the association between HL and stroke, coronary artery disease (CAD), and any CVD. DATA SOURCES PubMed, Embase, and SCOPUS from inception until April 27, 2022. REVIEW METHODS Three blinded reviewers selected observational studies reporting stroke, CAD, and any CVD in patients with HL, compared to individuals without HL. We extracted data, evaluated study bias using the Newcastle-Ottawa scale, following Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines and a PROSPERO-registered protocol (CRD42022348648). We used random-effects inverse variance meta-analyses to pool the odds ratios (ORs) for the association of HL with stroke, CAD, and any CVD. RESULTS We included 4 cohort studies (N = 940,771) and 6 cross-sectional studies (N = 680,349). Stroke, CAD, and any CVD were all strongly associated with HL. The overall pooled OR of the association between HL and stroke was 1.26 (95% confidence interval [CI] = 1.16-1.37, I2 = 78%), and was 1.33 (95% CI = 1.12-1.58) and 1.29 (95% CI = 1.14-1.45) for low- and high-frequency HL, respectively. Minimal publication bias was observed, with minimal change to pooled effect size following trim and fill. Similarly, the pooled OR of the association between HL and CAD was 1.36 (95% CI = 1.13-1.64, I2 = 96%), while that between HL and any CVD was 1.38 (95% CI = 1.07-1.77, I2 = 99%). CONCLUSION Our findings suggest that HL and CVD are closely related. Physicians treating patients with HL should be cognizant of this association and view HL in the broader context of general health and aging.
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Affiliation(s)
- Claire Jing-Wen Tan
- Department of Otolaryngology-Head and Neck Surgery, Yong Loo Lin School of Medicine, National University Hospital, Singapore City, Singapore
| | - Jia Wen Tricia Koh
- Department of Otolaryngology-Head and Neck Surgery, Yong Loo Lin School of Medicine, National University Hospital, Singapore City, Singapore
| | - Benjamin Kye Jyn Tan
- Department of Otolaryngology-Head and Neck Surgery, Yong Loo Lin School of Medicine, National University Hospital, Singapore City, Singapore
| | - Chang Yi Woon
- Department of Otolaryngology-Head and Neck Surgery, Yong Loo Lin School of Medicine, National University Hospital, Singapore City, Singapore
| | - Yao Hao Teo
- Department of Otolaryngology-Head and Neck Surgery, Yong Loo Lin School of Medicine, National University Hospital, Singapore City, Singapore
| | - Li Shia Ng
- Department of Otolaryngology-Head and Neck Surgery, National University Hospital, Singapore City, Singapore
| | - Woei Shyang Loh
- Department of Otolaryngology-Head and Neck Surgery, National University Hospital, Singapore City, Singapore
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Lim CQE, Teo YN, Li TYW, Teo YH, Syn NLX, Leow AST, Ho JSY, Lim TW, Seow SC, Chan MYY, Wong RCC, Chai P, Chan ACY, Sharma VK, Tan BYQ, Yeo LLL, Ong JJY, Sia CH. Migraine and atrial fibrillation: a systematic review and meta-analysis. Singapore Med J 2024:00077293-990000000-00098. [PMID: 38409761 DOI: 10.4103/singaporemedj.smj-2022-114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 10/19/2022] [Indexed: 02/28/2024]
Abstract
BACKGROUND Patients with migraines, particularly those with auras, may present with stroke. Atrial fibrillation is a known risk factor for stroke. With common pathophysiological factors between migraines and atrial fibrillation, we aimed to clarify the association between migraine and atrial fibrillation in this systematic review and meta-analysis. METHODS A literature search was conducted in EMBASE, PubMed, Scopus and Cochrane electronic bibliographic databases from inception to 5 September 2022 with the following inclusion criteria: (a) cohort or cross-sectional studies; (b) studies that included only patients aged ≥18 years; and (c) studies that examined the association between atrial fibrillation and migraines. Exclusion criteria were case-control studies and the studies that included patients with previous diagnosis of atrial fibrillation or nonmigrainous headache. The Newcastle-Ottawa Scale was used to assess the quality of studies. RESULTS Six studies were included, demonstrating a pooled prevalence of atrial fibrillation of 1.61% (95% confidence interval [CI] 0.51, 3.29) in migraine with aura and 1.32% (95% CI 0.17, 3.41) in migraine without aura. The overall prevalence of atrial fibrillation in migraine was 1.39% (95% CI 0.24, 3.46). CONCLUSION In this systematic review and meta-analysis, the overall prevalence of atrial fibrillation in patients with migraine was low. Further studies are needed to clarify this relationship.
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Affiliation(s)
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tony Yi-Wei Li
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas Li-Xun Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Aloysius Sheng-Ting Leow
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
| | - Jamie Sin-Ying Ho
- Academic Foundation Year Programme, Royal Free Hospital University Trust, London, United Kingdom
| | - Toon Wei Lim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
| | - Swee-Chong Seow
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
| | - Mark Yan Yee Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
| | - Raymond Ching Chiew Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
| | - Amanda Chee Yun Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Health System, Singapore
| | - Vijay Kumar Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Health System, Singapore
| | - Benjamin Yong-Qiang Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Health System, Singapore
| | - Leonard Leong Litt Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Health System, Singapore
| | - Jonathan Jia Yuan Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Health System, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, National University Health System, Singapore
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Ding Y, Koh JH, Cheah XY, Yeo BSY, Leong DWJ, Teo YH, Tan BKJ, See A, Toh ST. Serum Biomarkers after Adenotonsillectomy for Pediatric OSA: A Systematic Review and Meta-Analysis. Laryngoscope 2024. [PMID: 38380991 DOI: 10.1002/lary.31249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 10/25/2023] [Accepted: 12/15/2023] [Indexed: 02/22/2024]
Abstract
OBJECTIVE To assess whether adenotonsillectomy improves levels of inflammatory and cardiometabolic markers in children with polysomnographically diagnosed obstructive sleep apnea (OSA). DATA SOURCES Two authors independently searched PubMed, Embase, and Cochrane databases up to August 16, 2022, for studies relating to pre- and post-operative levels of serum markers in pediatric patients undergoing adenotonsillectomy. REVIEW METHODS Data were extracted from included articles into a structured proforma. Meta-analyses of the standardized mean difference (SMD) were conducted in random-effects models. We calculated the probability of benefit (POB) and number needed to treat (NNT) for outcomes that demonstrated a statistically significant effect after adenotonsillectomy. The primary outcomes were changes in serum markers including C-reactive protein (CRP), high-sensitivity CRP (hs-CRP), Insulin-like growth factor 1 (IGF-1), interleukin-10 (IL-10), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), Brain natriuretic peptide (BNP), insulin, glucose, total cholesterol, triglyceride, low-density lipoprotein (LDL), high-density lipoprotein (HDL). RESULTS We screened 1616 studies and included 26 studies with 1331 participants. Meta-analysis was performed on 20 of the included studies. Adenotonsillectomy was associated with a significant decrease in insulin levels (SMD = -0.322, 95% Confidence Interval (CI) = -0.583 to -0.061), CRP (SMD = -0.946, 95% CI = -1.578 to -0.314), and BNP (SMD = -1.416, 95% CI = -2.355 to -0.477) and significant increase in levels of IGF-1 (SMD = 0.691, 95% CI = 0.207 to 1.176). There were no significant changes in levels of triglyceride, total cholesterol, TNF-α, LDL, HDL, glucose, IL-10, and IL-6. CONCLUSION In children with polysomnographically diagnosed OSA, adenotonsillectomy was associated with improvements in serum biomarkers, comprising lower CRP, insulin, and BNP, and higher IGF-1. Laryngoscope, 2024.
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Affiliation(s)
- Yichen Ding
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jin Hean Koh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Xing Yi Cheah
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Brian Sheng Yep Yeo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Darien W J Leong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Anna See
- Department of Otorhinolaryngology-Head and Neck Surgery, Singapore General Hospital, Sinagapore, Singapore
| | - Song Tar Toh
- Department of Otorhinolaryngology-Head and Neck Surgery, Singapore General Hospital, Sinagapore, Singapore
- SingHealth Duke-NUS Sleep Centre, Sinagapore, Singapore
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Yeo JYP, Yau CE, Ong NY, Teo YH, Gopinathan A, Yang C, Jing M, Yang JJW, Sia CH, Tan BYQ, Yeo LLL. Comparing the Impact of Stenting vs. Medical Therapy for Intracranial Arterial Stenosis : A Systematic Review and One-stage and Two-stage Meta-Analysis of Randomized Clinical Trials. Clin Neuroradiol 2024:10.1007/s00062-023-01370-3. [PMID: 38172262 DOI: 10.1007/s00062-023-01370-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 11/23/2023] [Indexed: 01/05/2024]
Abstract
PURPOSE In the treatment of intracranial arterial stenosis (ICAS), controversies remain regarding the optimal treatment strategy. Our study aims to conduct an individual patient-level data meta-analysis of existing RCTs comparing PTAS versus best medical therapy and to identify differences in outcomes such as incidence of ischemic stroke or death. METHODS Randomised controlled trials comparing the outcomes of stenting versus best medical therapy for patients who had symptomatic ICAS of >50%. Excluded studies included case reports, case series, reviews, observational studies, letters or studies evaluating isolated angioplasty techniques without stenting. Data was extracted in accordance with PRISMA guidelines. RESULTS 7 studies involving 1425 participants were included. There was an increased risk in the incidence of stroke and death within the first 30 days post-procedure for patients treated with PTAS over best medical therapy (RR = 2.22 [1.28-3.86], I² = 0%). Patients who underwent stenting also had a significantly higher risk of intracranial haemorrhage (RR = 12.66 [2.41-66.45], I² = 0%) and death (RR = 5.41 [1.20-24.28], I² = 0%).Under the shared frailty model, stenting when compared to medical therapy has a HR of 1.81 (95% CI:1.25-2.6) of stroke or death across 1 year. Under the parametric Royston-Parmar model, stenting has a significant decrease in the RMST(-0.83 months; 95% CI: -1.30-0.37). Stenting continued to show worse outcomes up to the 3 year mark with a HR of 1.60 (95% CI: 1.11-2.32). CONCLUSIONS AND RELEVANCE There is an increased risk of peri- and post-procedural stroke and death over best medical therapy in patients with symptomatic ICAS who undergo PTAS. Further work is required to refine patient selection and mitigate peri-procedural risks.
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Affiliation(s)
- Joshua Y P Yeo
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Chun En Yau
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Natasha Yixuan Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Anil Gopinathan
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Diagnostic Imaging, National University Health System, Singapore, Singapore
| | - Cunli Yang
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Diagnostic Imaging, National University Health System, Singapore, Singapore
| | - Mingxue Jing
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Joanna J W Yang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Benjamin Yong Qiang Tan
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Leonard Leong Litt Yeo
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore.
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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Teo YH, Yong CL, Ou YH, Tam WW, Teo YN, Koo CY, Kojodjojo P, Lee CH. Obstructive sleep apnea and temporal changes in cardiac repolarization in patients undergoing coronary artery bypass grafting. J Clin Sleep Med 2024; 20:49-55. [PMID: 38163943 PMCID: PMC10758550 DOI: 10.5664/jcsm.10786] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 08/22/2023] [Accepted: 08/22/2023] [Indexed: 01/03/2024]
Abstract
STUDY OBJECTIVES In coronary artery bypass grafting (CABG), abnormal cardiac repolarization is associated with adverse cardiovascular events that can be measured via the QTc interval. We investigated the impact of obstructive sleep apnea on the change in repolarization after CABG and the association of change in repolarization with the occurrence of major adverse cardiac and cerebrovascular events. METHODS A total of 1,007 patients from 4 hospitals underwent an overnight sleep study prior to a nonemergent CABG. Electrocardiograms of 954 patients (median age: 62 years; male: 86%; mean follow-up: 2.1 years) were acquired prospectively within 48 hours before CABG (T1) and within 24 hours after CABG (T2). QTc intervals were measured using the BRAVO algorithm by Analyzing Medical Parameters for Solutions LLC. The change in T2 from T1 for QTc (ΔQTc) was derived, and Cox regression was performed. RESULTS Compared with those without, patients who developed major adverse cardiac and cerebrovascular events (n = 115) were older and had (1) a higher prevalence of smoking, hypertension, diabetes mellitus, and chronic kidney disease; (2) a higher apnea-hypopnea index and oxygen desaturation index; and (3) a smaller ΔQTc. Cox regression analysis demonstrated a smaller ΔQTc to be an independent risk factor for major adverse cardiac and cerebrovascular events (hazard ratio: 0.997; P = .032). In the multivariable regression model, a higher oxygen desaturation index was independently associated with a smaller ΔQTc (correlation coefficient: -0.58; P < .001). CONCLUSIONS A higher preoperative oxygen desaturation index was an independent predictor of a smaller ΔQTc. ΔQTc within 24 hours after CABG could be a novel predictor of occurrence of major adverse cardiac and cerebrovascular events at medium-term follow-up. CLINICAL TRIAL REGISTRATION Registry: ClinicalTrials.gov; Name: Undiagnosed Sleep Apnea and Bypass OperaTion (SABOT); URL: https://classic.clinicaltrials.gov/ct2/show/NCT02701504; Identifier: NCT02701504. CITATION Teo YH, Yong CL, Ou YH, et al. Obstructive sleep apnea and temporal changes in cardiac repolarization in patients undergoing coronary artery bypass grafting. J Clin Sleep Med. 2024;20(1):49-55.
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Affiliation(s)
- Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Cai Ling Yong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yi Hui Ou
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Wilson W. Tam
- Alice Lee Centre for Nursing Studies, National University of Singapore, Singapore
| | - Yao Neng Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Alice Lee Centre for Nursing Studies, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
- Asian Heart and Vascular Centre (AHVC), Singapore
- Cardiovascular Research Institute, National University of Singapore, Singapore
| | - Chieh-Yang Koo
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | | | - Chi-Hang Lee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
- Cardiovascular Research Institute, National University of Singapore, Singapore
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Loh EDW, Toh KZX, Kwok GYR, Teo YH, Teo YN, Goh C, Syn NL, Ho AFW, Sia CH, Sharma VK, Tan BY, Yeo LL. Endovascular therapy for acute ischemic stroke with distal medium vessel occlusion: a systematic review and meta-analysis. J Neurointerv Surg 2023; 15:e452-e459. [PMID: 36539273 DOI: 10.1136/jnis-2022-019717] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022]
Abstract
AIMS Endovascular therapy (EVT) for distal medium vessel occlusions (DMVOs) is a potential frontier of acute ischemic stroke (AIS) treatment, but its efficacy against best medical therapy (BMT) remains unknown. We performed a systematic review and meta-analysis evaluating the efficacy and safety of EVT versus BMT in primary DMVO. METHODS We systematically searched PubMed, Cochrane Library and Embase, from inception to August 14, 2022, for studies comparing EVT with BMT in DMVO-AIS. We adopted the Distal Thrombectomy Summit Group's definition of DMVO. Efficacy outcomes were functional independence (90-day modified Rankin Scale (mRS) 0-2) and excellent functional outcomes (90-day mRS 0-1). Safety outcomes were symptomatic intracranial hemorrhage (sICH) and 90-day mortality. RESULTS Fourteen observational and two randomized-controlled studies were included, with 1202 patients receiving EVT and 1267 receiving BMT. After trim-and-fill correction, EVT achieved significantly better odds of functional independence than BMT (adjusted OR 1.61, 95% CI 1.06 to 2.43). There were no significant differences in overall excellent functional outcomes (OR 1.23, 95% CI 0.88 to 1.71), sICH (OR 1.44, 95% CI 0.78 to 2.66), and mortality (OR 1.03, 95% CI 0.73 to 1.45). Stratified by EVT method, mechanical thrombectomy±intra-arterial thrombolysis achieved more excellent functional outcomes than BMT (OR 1.59, 95% CI 1.13 to 2.23). In mild strokes (National Institutes of Health Stroke Scale score <6), EVT caused significantly more sICH (OR 6.30, 95% CI 1.55 to 25.64). CONCLUSIONS EVT shows promising efficacy benefit over BMT for primary DMVO-AIS. Further randomized controlled trials are necessary to evaluate the efficacy and safety of EVT in DMVO-AIS.
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Affiliation(s)
- Enver De Wei Loh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Keith Zhi Xian Toh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Gabriel Yi Ren Kwok
- Institute of Health Sciences Education, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Claire Goh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas L Syn
- Department of Surgery, National University Health System, Singapore
| | - Andrew Fu-Wah Ho
- Department of Emergency Medicine, Singapore General Hospital, Singapore
- Pre-hospital & Emergency Research Centre, Duke-National University of Singapore Medical School, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre, Singapore
| | - Vijay Kumar Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Benjamin Yq Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Leonard Ll Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
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9
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Koh TJW, Tan HJH, Ravi PRJ, Sng JWZ, Yeo TC, Tan BYQ, Chai P, Yeo LLL, Chan MY, Kong WKF, Wong RCC, Teo YH, Ho JSY, Teo YN, Sia CH. Association Between Breast Arterial Calcifications and Cardiovascular Disease: A Systematic Review and Meta-analysis. Can J Cardiol 2023; 39:1941-1950. [PMID: 37506765 DOI: 10.1016/j.cjca.2023.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Recent studies have shown that breast arterial calcification (BAC) detected on screening mammography is linked to cardiovascular diseases via medial calcification. However, its effect on cardiovascular outcomes remains unclear. Therefore, we conducted a meta-analysis to determine the effect of BAC on cardiovascular outcomes in patients. METHODS Three electronic databases (Pubmed, Embase, and Scopus) were searched on May 1, 2022, for studies examining the relationship between BAC and cardiovascular outcomes including cardiac death, acute myocardial infarction, ischemic heart disease, stroke, peripheral artery disease, and heart failure. A random-effects meta-analysis model was used to summarise the studies. RESULTS A total of 5 longitudinal studies were included with a combined cohort of 87,865 patients. Significantly, the pooled risk ratio (RR) of the association between BAC and cardiac death was 2.06 (P < 0.00001). BAC was associated with a significantly increased risk of developing other cardiovascular diseases, such as ischemic/hemorrhagic stroke (RR 1.51; P = 0.003), ischemic stroke (RR 1.82; P < 0.00001), peripheral vascular disease (RR 1.24; P = 0.003), and heart failure (RR 1.84; P < 0.00001). There was no significant relationship for developing myocardial infarction or for total cardiovascular diseases. CONCLUSIONS Our findings suggest that BAC was associated with an increased risk of cardiovascular mortality, and certain cardiovascular outcomes. There is thus a potential to use BAC as a sex-specific cardiovascular risk assessment tool. Furthermore, there is a need for more widespread reporting of BAC to better understand the pathophysiologic mechanisms behind its correlation with cardiovascular disease and to apply it in clinical practice.
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Affiliation(s)
- Tricia Jia Wen Koh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Hannah Jia Hwee Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Jonathan W Z Sng
- Department of Diagnostic Imaging, National University Hospital, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Benjamin Y Q Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Leonard L L Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Mark Y Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - William K F Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Raymond C C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jamie Sin Ying Ho
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
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10
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Low CE, Teo YN, Teo YH, Lim ICZ, Rana S, Lee YQ, Chen X, Fang JT, Lam HH, Ong K, Yang J, Kuntjoro I, Low TT, Lee EC, Sharma VK, Yeo LL, Sia CH, Tan BY, Lim Y. Propensity-score matched analysis of patent foramen ovale closure in real-world study cohort with cryptogenic ischemic stroke. J Stroke Cerebrovasc Dis 2023; 32:107407. [PMID: 37804781 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/27/2023] [Accepted: 10/02/2023] [Indexed: 10/09/2023] Open
Abstract
INTRODUCTION Patent foramen ovale (PFO) occurs in 25% of the general population and in 40% of cryptogenic ischemic stroke patients. Recent trials support PFO closure in selected patients with cryptogenic stroke. We examined the outcomes of transcatheter PFO closure in a real-world study cohort with cryptogenic stroke. METHODS Consecutive ischemic stroke patients who were classified as cryptogenic on the TOAST aetiology and diagnosed with a PFO were included. All patients underwent either transcatheter PFO closure or medical therapy. A 2:1 propensity score matching by sex and Risk-of-Paradoxical-Embolism (RoPE) score was performed. Multivariable regression models adjusted for sex and RoPE score. RESULTS Our cohort comprised 232 patients with mean age 44.3 years (SD 10.8) and median follow-up 1486.5 days. 33.2% were female. PFO closure (n=84) and medical therapy (n=148) groups were well-matched with <10% mean-difference in sex and RoPE score. Two patients in the treated group (2.4%) and seven in the control group (4.7%) had a recurrent ischemic stroke event. Multivariable Cox regression demonstrated a hazard-ratio of 0.26 (95%CI 0.03-2.13, P=0.21) for PFO closure compared to control. The incidence of atrial fibrillation (AF) detected post-PFO closure was similar between the treated and control (1.19% vs 1.35%, multivariable logistic regression odds-ratio 0.90, 95%CI 0.04-9.81, P=0.94). There were no major periprocedural complications documented. The difference in restricted mean survival-time free from stroke at two years between treated and control was 26.2 days (95%CI 5.52-46.85, P=0.013). CONCLUSIONS In this Asian cohort, we report a low incidence of ischemic stroke recurrence and new-onset AF in patients who underwent PFO closure. When compared to the medical therapy group, there was no significant difference in the incidence of stroke recurrence and new-onset AF. Further studies involving larger real-world cohorts are warranted to identify patients who are more likely to benefit from PFO closure.
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Affiliation(s)
- Chen Ee Low
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Isis Claire Zy Lim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Sounak Rana
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yong Qin Lee
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Xintong Chen
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Jun Tao Fang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Hsin Hui Lam
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kathleen Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Joanna Yang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ivandito Kuntjoro
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Ting Ting Low
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Edward Cy Lee
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Vijay K Sharma
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Leonard Ll Yeo
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Ching Hui Sia
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Benjamin Yq Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Yinghao Lim
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Road, Singapore 119074, Singapore.
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11
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Tan VZ, Teo YH, Wu J, Ong PH. Care transition processes in the Singapore healthcare system: process mapping and perspectives of private primary care practitioners. Singapore Med J 2023:388832. [PMID: 37929563 DOI: 10.4103/singaporemedj.smj-2021-446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Affiliation(s)
- Varen Zhi Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jiaxuan Wu
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Pang Hao Ong
- Ministry of Health Office for Healthcare Transformation, Singapore
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12
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Sim MG, Teo YN, Teo YH, Syn NL, Li TYW, Yeo LLL, Kong WKF, Tan BYQ, Yip JW, Wong RCC, Poh KK, Yeo TC, Sharma VK, Chai P, Chan MY, Sia CH. Association Between Calcium Supplementation and the Risk of Cardiovascular Disease and Stroke: A Systematic Review and Meta-Analysis. Heart Lung Circ 2023; 32:1230-1239. [PMID: 37743221 DOI: 10.1016/j.hlc.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 07/12/2023] [Accepted: 07/20/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND Some observational studies and randomised controlled trials (RCTs) have reported an association between calcium supplementation and increased risk of cardiovascular disease. Previous meta-analyses on the topic, based on data from RCTs and observational studies, have contradictory findings. This meta-analysis was conducted to determine the difference in associated risks of calcium supplementation with cardiovascular disease and stroke in RCTs. METHODS Relevant studies published from database inception to 6 August 2021 were sourced from PubMed, Embase, Scopus, and the Cochrane Central Register of Controlled Trials. Any RCTs focusing on the relationship between calcium supplementation and incidence of cardiovascular disease or stroke were included. Articles were screened independently by two authors, according to the PICO criteria, with disagreements resolved by a third author. RESULTS Twelve RCTs were included in the meta-analysis. Calcium supplementation was not associated with myocardial infarction, total stroke, heart failure admission, and all-cause/cardiovascular mortality. Subgroup analysis focusing on calcium monotherapy/calcium co-therapy with vitamin D, female sex, follow-up duration, and geographical region did not affect the findings. CONCLUSION Calcium supplementation was not associated with myocardial infarction, total stroke, heart failure admission, and cardiovascular/all-cause mortality. Further studies are required to examine and understand these associations.
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Affiliation(s)
- Ming Gin Sim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. http://www.twitter.com/yaoneng_teo
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tony Y W Li
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Leonard L L Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - William K F Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Benjamin Y Q Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - James W Yip
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Raymond C C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Kian Keong Poh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Vijay Kumar Sharma
- Department of Cardiology, National University Heart Centre Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Mark Y Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
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13
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Thong EHE, Quek EJW, Loo JH, Yun CY, Teo YN, Teo YH, Leow AST, Li TYW, Sharma VK, Tan BYQ, Yeo LLL, Chong YF, Chan MY, Sia CH. Acute Myocardial Infarction and Risk of Cognitive Impairment and Dementia: A Review. Biology (Basel) 2023; 12:1154. [PMID: 37627038 PMCID: PMC10452707 DOI: 10.3390/biology12081154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/05/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
Cognitive impairment (CI) shares common cardiovascular risk factors with acute myocardial infarction (AMI), and is increasingly prevalent in our ageing population. Whilst AMI is associated with increased rates of CI, CI remains underreported and infrequently identified in patients with AMI. In this review, we discuss the evidence surrounding AMI and its links to dementia and CI, including pathophysiology, risk factors, management and interventions. Vascular dysregulation plays a major role in CI, with atherosclerosis, platelet activation, microinfarcts and perivascular inflammation resulting in neurovascular unit dysfunction, disordered homeostasis and a dysfunctional neurohormonal response. This subsequently affects perfusion pressure, resulting in enlarged periventricular spaces and hippocampal sclerosis. The increased platelet activation seen in coronary artery disease (CAD) can also result in inflammation and amyloid-β protein deposition which is associated with Alzheimer's Dementia. Post-AMI, reduced blood pressure and reduced left ventricular ejection fraction can cause chronic cerebral hypoperfusion, cerebral infarction and failure of normal circulatory autoregulatory mechanisms. Patients who undergo coronary revascularization (percutaneous coronary intervention or bypass surgery) are at increased risk for post-procedure cognitive impairment, though whether this is related to the intervention itself or underlying cardiovascular risk factors is debated. Mortality rates are higher in dementia patients with AMI, and post-AMI CI is more prevalent in the elderly and in patients with post-AMI heart failure. Medical management (antiplatelet, statin, renin-angiotensin system inhibitors, cardiac rehabilitation) can reduce the risk of post-AMI CI; however, beta-blockers may be associated with functional decline in patients with existing CI. The early identification of those with dementia or CI who present with AMI is important, as subsequent tailoring of management strategies can potentially improve outcomes as well as guide prognosis.
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Affiliation(s)
- Elizabeth Hui En Thong
- Internal Medicine Residency, National University Health System, Singapore 119074, Singapore; (E.H.E.T.); (Y.H.T.); (A.S.T.L.)
| | - Ethan J. W. Quek
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
| | - Jing Hong Loo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
| | - Choi-Ying Yun
- Department of Cardiology, National University Heart Centre Singapore, Singapore 119074, Singapore; (C.-Y.Y.); (T.Y.W.L.)
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
| | - Yao Hao Teo
- Internal Medicine Residency, National University Health System, Singapore 119074, Singapore; (E.H.E.T.); (Y.H.T.); (A.S.T.L.)
| | - Aloysius S. T. Leow
- Internal Medicine Residency, National University Health System, Singapore 119074, Singapore; (E.H.E.T.); (Y.H.T.); (A.S.T.L.)
| | - Tony Y. W. Li
- Department of Cardiology, National University Heart Centre Singapore, Singapore 119074, Singapore; (C.-Y.Y.); (T.Y.W.L.)
| | - Vijay K. Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore;
| | - Benjamin Y. Q. Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore;
| | - Leonard L. L. Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore;
| | - Yao Feng Chong
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore;
| | - Mark Y. Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
- Department of Cardiology, National University Heart Centre Singapore, Singapore 119074, Singapore; (C.-Y.Y.); (T.Y.W.L.)
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; (E.J.W.Q.); (J.H.L.); (Y.N.T.); (V.K.S.); (B.Y.Q.T.); (L.L.L.Y.); (M.Y.C.)
- Department of Cardiology, National University Heart Centre Singapore, Singapore 119074, Singapore; (C.-Y.Y.); (T.Y.W.L.)
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14
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Toh KZX, Koh MY, Loh EDW, Kwok GYR, Teo YH, Teo YN, Goh CXY, Syn NLX, Ho AFW, Sia CH, Brouwer PA, Andersson T, Meyer L, Fiehler J, Bhogal P, Sharma VK, Tan BYQ, Yeo LLL. Distal medium vessel occlusions in acute ischaemic stroke - Stent retriever versus direct aspiration: A systematic review and meta-analysis. Eur Stroke J 2023; 8:434-447. [PMID: 37231692 PMCID: PMC10334182 DOI: 10.1177/23969873231151262] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/28/2022] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Acute ischaemic stroke due to distal medium vessel occlusion (AIS-DMVO) causes significant morbidity. Endovascular thrombectomy advancement has made treating AIS-DMVO with stent retrievers (SR) and aspiration catheters (AC) possible, however the optimal technique remains unknown. We performed a systematic review and meta-analysis to investigate the efficacy and safety of SR use compared to purely AC use in patients with AIS-DMVO. METHODS We systematically searched PubMed, Cochrane Library and EMBASE, from inception to 2nd September 2022, for studies comparing SR or primary combined (SR/PC) against AC in AIS-DMVO. We adopted the Distal Thrombectomy Summit Group's definition of DMVO. Efficacy outcomes were functional independence (modified Rankin Scale (mRS) 0-2 at 90 days), first pass effect (modified Thrombolysis in Cerebral Infarction scale (mTICI) 2c-3 or expanded Thrombolysis in Cerebral Infarction scale (eTICI) 2c-3 at first pass), successful final recanalisation (mTICI or eTICI 2b-3), and excellent final recanalisation (mTICI or eTICI 2c-3). Safety outcomes were symptomatic intracranial haemorrhage (sICH) and 90-day mortality. RESULTS 12 cohort studies and 1 randomised-controlled trial were included, involving 1881 patients with 1274 receiving SR/PC and 607 receiving AC only. SR/PC achieved higher odds of functional independence (odds ratio (OR) 1.33, 95% confidence interval (CI) 1.06-1.67) and lower odds of mortality (OR 0.69, 95% CI 0.50-0.94) than AC. Odds of successful/excellent recanalisation and sICH were similar between both groups. Stratified to compare only SR and only AC, the use of only SR, achieved significantly higher odds of successful recanalisation as compared to only AC (OR 1.80, 95% CI 1.17-2.78). CONCLUSION There is potential for efficacy and safety benefits in SR/PC use as compared to AC only in AIS-DMVO. Further trials are necessary to validate the efficacy and safety of SR use in AIS-DMVO.
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Affiliation(s)
- Keith Zhi Xian Toh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Ming Yi Koh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Enver De Wei Loh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Gabriel Yi Ren Kwok
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Claire Xin Yi Goh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas Li Xun Syn
- Department of Surgery, University Surgical Cluster, National University Health System, Singapore
| | - Andrew Fu Wah Ho
- SingHealth Duke-NUS Emergency Medicine Academic Clinical Program, Singapore
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Patrick A Brouwer
- Cerenovus (Johnson & Johnson), Galway Neuro Technology Centre, Galway, Ireland
| | | | - Lukas Meyer
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Vijay K Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Benjamin YQ Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Leonard L L Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
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15
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Seah SJS, Chiu ST, Thant AT, Chan SP, Ou YH, Teo YH, Wong S, Koo CY, Barbé F, Lee CH. Hour-to-hour variability of respiratory sleep indices and ambulatory blood pressure. Sleep 2023; 46:6708255. [PMID: 36130168 DOI: 10.1093/sleep/zsac227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/14/2022] [Indexed: 11/13/2022] Open
Abstract
STUDY OBJECTIVES Respiratory sleep indices are traditionally reported on the basis of the average total sleep time. The relationship between the hour-to-hour variability of these parameters and blood pressure (BP) has not been reported. METHODS We evaluated the associations of the hour-to-hour variability of the apnea-hypopnea index (AHI), oxygen desaturation index (ODI), and lowest oxygen saturation with the 24-h ambulatory BP in patients with hypertension and newly diagnosed obstructive sleep apnea. A total of 147 patients underwent polysomnography, based on which obstructive sleep apnea was diagnosed in 106 patients; these patients underwent 24-h ambulatory BP monitoring within the next 30 days. Each polysomnogram was divided into hourly reports to calculate the variability of the respiratory sleep indices. Variability independent of the mean was considered the primary measure of variability. RESULTS The median number of hourly polysomnogram reports was 7 (range, 4-8). The hour-to-hour variability of both AHI and ODI, but not of the lowest oxygen saturation, was correlated with the 24-h pulse pressure, 24-h systolic BP, and awake systolic BP (p < 0.05 for all). The fully adjusted linear regression analysis indicated that the hour-to-hour variability of AHI and ODI remained associated with the 24-h pulse pressure (AHI: β coefficient, 0.264 [95% CI = 0.033-0.495], p = 0.026; ODI: β coefficient, 0.450 [95% CI = 0.174-0.726], p = 0.002). CONCLUSIONS The hour-to-hour variability of AHI and ODI is independently associated with the 24-h pulse pressure. Further investigations are warranted to evaluate the clinical relevance of this new-found association.
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Affiliation(s)
- Shawn Jing-Sheng Seah
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Shi Ting Chiu
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - As Tar Thant
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Siew Pang Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Cardiovascular Research Institute, National University Heart Centre Singapore, Singapore, Singapore
| | - Yi-Hui Ou
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Serene Wong
- Fast and Chronic Programmes, Alexandra Hospital, National University Health System, Singapore, Singapore
| | - Chieh-Yang Koo
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Ferran Barbé
- Translational Research in Respiratory Medicine, Hospital Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, CIBERES, Madrid, Spain
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Cardiovascular Research Institute, National University Heart Centre Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
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16
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Teoh SE, Tan EWX, Teo YN, Basker G, Teo YH, Chai P, Wong RCC, Yip JWL, Kuntjoro I, Lim YH, Poh KK, Yeo TC, Kong WKF, Sia CH. Effects of medical therapy, transcatheter intervention, and surgery on outcomes of patients with functional mitral regurgitation: a systematic review and network meta-analysis. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): Ching-Hui Sia was supported by the National University of Singapore Yong Loo Lin School of Medicine's Junior Academic Fellowship Scheme.
Background
Functional mitral regurgitation (FMR) is the most common valvular heart disease worldwide. Despite recent major trials, the relative efficacy between medical therapy, transcatheter intervention, and surgery for the treatment of FMR remains poorly understood.
Purpose
We performed a systematic review and network meta-analysis of all published randomised controlled trials (RCTs) and observational studies to compare the efficacy between medical therapy, transcatheter intervention, and surgery on the clinical outcomes of patients with FMR.
Methods
Four electronic databases (PubMed, EMBASE, SCOPUS, and the Cochrane Library) were searched from inception to March 13, 2022, for studies reporting clinical outcomes in patients with FMR and comparing the efficacy between either medical therapy, transcatheter intervention, or surgery. Frequentist network meta-analysis models were utilised to summarise the studies. This study was registered in the International Prospective Register of Systematic Reviews.
Results
10 articles were included in the analysis, comprising a combined cohort of 1,981 patients. Network meta-analysis demonstrated that compared to medical therapy, transcatheter intervention achieved a lower relative risk in the composites of all-cause mortality (risk ratio [RR]: 0.43; 95% confidence interval [CI] 0.22-0.82) and mitral regurgitation (MR) severity grade ≥3+ (RR: 0.06; 95% CI 0.01-0.42). Compared to surgery, transcatheter intervention achieved a lower relative risk in the composites of cardiovascular death (RR: 0.36; 95% CI 0.17-0.75) and MR severity grade ≥3+ (RR: 0.25; 95% CI 0.09-0.70) and higher relative risk in the composite of heart failure hospitalisation (RR: 2.94; 95% CI 1.26-6.82). Compared to medical therapy, surgery achieved a higher relative risk in the composite of cardiovascular death (RR: 2.54; 95% CI 1.18-5.47) and lower relative risks in the composites of all-cause mortality (RR: 0.56; 95% CI 0.34-0.91) and heart failure hospitalisation (RR: 0.28; 95% CI 0.13-0.61).
Conclusion
Medical therapy, transcatheter intervention, and surgery in patients with FMR displayed differing effects on the various clinical outcomes. Further head-to-head trials are required to better understand the optimal treatment modality in this population.
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Affiliation(s)
- S E Teoh
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - E W X Tan
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - Y N Teo
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - G Basker
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - Y H Teo
- National University of Singapore, Department of Medicine , Singapore , Singapore
| | - P Chai
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - R C C Wong
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - J W L Yip
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - I Kuntjoro
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - Y H Lim
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - K K Poh
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - T C Yeo
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - W K F Kong
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - C H Sia
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
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17
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Lim ICZY, Teo YH, Fang JT, Teo YN, Ho JSY, Lee YQ, Chen X, Ong KHX, Leow AST, Ho AFW, Lim Y, Low TT, Kuntjoro I, Yeo LLL, Sia CH, Sharma VK, Tan BYQ. Association of Shunt Size and Long-Term Clinical Outcomes in Patients with Cryptogenic Ischemic Stroke and Patent Foramen Ovale on Medical Management. J Clin Med 2023; 12:jcm12030941. [PMID: 36769589 PMCID: PMC9917737 DOI: 10.3390/jcm12030941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
INTRODUCTION Patent foramen ovale (PFO) is a potential source of cardiac embolism in cryptogenic ischemic stroke, but it may also be incidental. Right-to-left shunt (RLS) size may predict PFO-related stroke, but results have been controversial. In this cohort study of medically-managed PFO patients with cryptogenic stroke, we aimed to investigate the association of shunt size with recurrent stroke, mortality, newly detected atrial fibrillation (AF), and to identify predictors of recurrent stroke. METHODS Patients with cryptogenic stroke who screened positive for a RLS using a transcranial Doppler bubble study were included. Patients who underwent PFO closure were excluded. Subjects were divided into two groups: small (Spencer Grade 1, 2, or 3; n = 135) and large (Spencer Grade 4 or 5; n = 99) shunts. The primary outcome was risk of recurrent stroke, and the secondary outcomes were all-cause mortality and newly detected AF. RESULTS The study cohort included 234 cryptogenic stroke patients with medically-managed PFO. The mean age was 50.5 years, and 31.2% were female. The median period of follow-up was 348 (IQR 147-1096) days. The rate of recurrent ischemic stroke was higher in patients with large shunts than in those with small shunts (8.1% vs. 2.2%, p = 0.036). Multivariate analyses revealed that a large shunt was significantly associated with an increased risk of recurrent ischemic stroke [aOR 4.09 (95% CI 1.04-16.0), p = 0.043]. CONCLUSIONS In our cohort of cryptogenic stroke patients with medically managed PFOs, those with large shunts were at a higher risk of recurrent stroke events, independently of RoPE score and left atrium diameter.
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Affiliation(s)
- Isis Claire Z. Y. Lim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Jun Tao Fang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Jamie S. Y. Ho
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
| | - Yong Qin Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Xintong Chen
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Kathleen Hui-Xin Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Aloysius S. T. Leow
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
| | - Andrew Fu-Wah Ho
- Department of Emergency Medicine, Singapore General Hospital, Singapore 169608, Singapore
- Pre-Hospital & Emergency Research Centre, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- Centre for Population Health Research and Implementation, Singhealth Regional Health System, Singapore 168753, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore 117549, Singapore
| | - Yinghao Lim
- Department of Cardiology, National University Heart Centre, Singapore 119074, Singapore
| | - Ting Ting Low
- Department of Cardiology, National University Heart Centre, Singapore 119074, Singapore
| | - Ivandito Kuntjoro
- Department of Cardiology, National University Heart Centre, Singapore 119074, Singapore
| | - Leonard L. L. Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
- Department of Cardiology, National University Heart Centre, Singapore 119074, Singapore
| | - Vijay K. Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
- Correspondence: ; Tel.: +65-9138-9555; Fax: +65-6908-2222
| | - Benjamin Y. Q. Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Level 10, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore 119074, Singapore
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18
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Teo YN, Basker G, Teoh SE, Tan EWX, Teo YH, Chai P, Wong RCC, Yip JWL, Kuntjoro I, Lim Y, Poh KK, Yeo TC, Kong WKF, Sia CH. Natural history of functional mitral regurgitation: a systematic review and individual patient data meta-analysis. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): Ching-Hui Sia was supported by the National University of Singapore Yong Loo Lin School of Medicine's Junior Academic Fellowship Scheme.
Background
Functional mitral regurgitation (FMR) precipitates a vicious cycle of left ventricular volume overload and remodelling, leading to perpetual worsening of FMR and left ventricular dysfunction, with a resultant poor prognosis. However, there is a lack of conclusive data on the natural progression of FMR in patients who do not undergo valvular intervention.
Purpose
We performed a one-stage meta-analysis on reconstructed individual patient data (IPD) to elucidate the natural history of FMR.
Methods
Four databases (PubMed, Embase, Scopus, Cochrane) were searched for randomised controlled trials or cohorts, published from inception to March 13, 2022, reporting clinical outcomes in patients with FMR not receiving valvular intervention. IPD meta-analysis, as the gold standard approach for evidence synthesis, was performed with reconstructed IPD obtained from the survival curves reported in the included studies. Pooled survival estimates were derived. Quality assessment of included studies was conducted using the Cochrane risk-of-bias tool and Newcastle Ottawa Scale. This study was registered on the International Prospective Register of Systematic Reviews.
Results
A total of five studies were included, comprising a total cohort of 691 patients with FMR who did not undergo valvular intervention. The mean age of the cohort was 72.4 years (95% CI 67.6 to 77.1) and the proportion of males was 61.1% (95% CI 43.8 to 76.0). All-cause mortality was analysed over a follow-up duration of five years, while hospitalisation for heart failure, cardiovascular death, and the composite of all-cause mortality and hospitalisation for heart failure were analysed over a follow-up duration of three years. The probability of survival of patients with FMR without intervention was 79.4% (95% CI 76.2 to 82.3), 50.9% (95% CI 46.6 to 55.1), and 39.6% (95% CI 33.1 to 46.0) at one, three, and five years respectively. The probability of survival free from the composite of all-cause mortality and hospitalisation for heart failure was 51.3% (95% CI 46.8 to 55.6) and 12.0% (95% CI 8.9 to 15.7) at one year and three years respectively. The probability of survival free from hospitalisation for heart failure was 58.3% (95% CI 54.0 to 62.3) and 19.7% (95% CI 16.0 to 23.7) at one and three years respectively. The probability of survival free from cardiovascular death was 75.4% (95% CI 68.9 to 80.8) and 45.6% (95% CI 29.1 to 60.7) at one and three years respectively. All included studies were of low to moderate risk of bias.
Conclusion
FMR in the absence of valvular intervention is associated with poor survival and cardiovascular outcomes. Further research should focus on the role of interventions to mitigate its poor prognosis.
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Affiliation(s)
- Y N Teo
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - G Basker
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - S E Teoh
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - E W X Tan
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - Y H Teo
- National University of Singapore, Department of Medicine , Singapore , Singapore
| | - P Chai
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - R C C Wong
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - J W L Yip
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - I Kuntjoro
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - Y Lim
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - K K Poh
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - T C Yeo
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - W K F Kong
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - C H Sia
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
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19
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Soh YHR, Teo YN, Teo YH, Djohan AH, Ho SYJ, Sukmawati I, Chan KA, Sim HW, Yeo TC, Tan HC, Chan YYM, Sia CH. Real-world comparison of intracoronary imaging and fractional flow reserve measurements on outcomes of semi-urgent and elective percutaneous coronary intervention in a multi-ethnic asian population. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Intracoronary imaging and fractional flow reserve measurements (FFR) are helpful in optimisation of percutaneous coronary intervention (PCI) for patients with stable coronary artery disease, but their comparative efficacy is not well described. Furthermore, few studies involve Asian patients in a real-world context.
Purpose
This study aims to compare the use of intracoronary imaging and fractional flow reserve measurements on the outcomes of semi-urgent and elective PCI in a multi-ethnic Asian population.
Methods
This was a retrospective database study of patients who underwent semi-urgent and elective PCI from 1st Jan 2014 to 31st Dec 2015 at a tertiary academic centre. The patients were split into 2 groups – imaging-guided (IG) consisting of intravascular ultrasound guided PCI or optical coherence tomography guided PCI and physiology-guided (PG) which included FFR-guided PCI. Patients who underwent both IG PCI and PG PCI were excluded. Incidence rates of major adverse cardiovascular events (MACE) (Subsequent myocardial infarction, congestive cardiac failure, all-cause mortality) and major adverse cardiovascular and cerebrovascular events (MACCE) (Subsequent myocardial infarction, congestive cardiac failure, stroke or transient ischemic attack and all-cause mortality) were compared between the two groups. One-to-one propensity score matching (PSM) was performed to control for potential bias.
Results
Of 1,732 patients studied, the median age was 61.0 years (IQR 53.0 to 68.0) and 336 were female (19.4%). There were 266 patients (15.4%) in IG and 186 (10.7%) in PG. The patients were followed up for 33 ±37 months. A total of 133 pairs were matched. In the unmatched cohort, there was no statistical difference between the IG and PG group in the incidence of MACE (24.2% vs 15.5%, p= 0.099) and MACCE (26.6% vs 17.7%, p= 0.112). Baseline and procedural characteristics were balanced between the IG and PG groups. In the matched cohort, the incidence rates of MACE (11.3% vs 7.5%, p= 0.383) and MACCE (15.8% vs 12.8%, p=0.596) did not differ significantly between the two groups.
Conclusion
In a real-world multi-ethnic Asian registry of semi-urgent and elective PCI patients, there was no difference in outcomes whether patients underwent the use of intracoronary imaging or fractional flow reserve measurements during PCI.
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Affiliation(s)
- Y H R Soh
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - Y N Teo
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - Y H Teo
- National University of Singapore, Yong Loo Lin School of Medicine , Singapore , Singapore
| | - A H Djohan
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - S Y J Ho
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - I Sukmawati
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - K A Chan
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - H W Sim
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - T C Yeo
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - H C Tan
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - Y Y M Chan
- National University Heart Centre, Cardiology , Singapore , Singapore
| | - C H Sia
- National University Heart Centre, Cardiology , Singapore , Singapore
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20
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Toh KZX, Koh MY, Ho JSY, Ong KHX, Lee YQ, Chen X, Fang JT, Chong EY, Lim ICZY, Teo YH, Teo YN, Chua CYK, Lim Y, Chan BPL, Sharma VK, Yeo LLL, Sia CH, Tan BYQ. Potential Embolic Sources in Embolic Stroke of Undetermined Source Patients with Patent Foramen Ovale. Cerebrovasc Dis 2022; 52:503-510. [PMID: 36455524 PMCID: PMC10627487 DOI: 10.1159/000527791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/24/2022] [Indexed: 10/04/2023] Open
Abstract
INTRODUCTION A patent foramen ovale (PFO) may coexist with other potential embolic sources (PESs) in patients with embolic stroke of undetermined source (ESUS), leading to difficulty in attributing the stroke to either the PFO or other PESs. We aimed to investigate the prevalence and predictors of concomitant PESs in ESUS patients with PFOs. METHODS A retrospective cohort study was conducted in a tertiary stroke centre. Consecutive patients with ESUS and a concomitant PFO admitted between 2012 and 2021 were included in the study. Baseline characteristics and investigations as a part of stroke workup including echocardiographic and neuroimaging data were collected. PESs were adjudicated by 2 independent neurologists after reviewing the relevant workup. RESULTS Out of 1,487 ESUS patients, a total of 309 patients who had a concomitant PFO with mean age of 48.8 ± 13.2 years were identified during the study period. The median Risk of Paradoxical Embolism (RoPE) score for the study cohort was 6 (IQR 5-7.5). Of the 309 patients, 154 (49.8%) only had PFO, 105 (34.0%) patients had 1 other PES, 34 (11.0%) had 2 PES, and 16 (5.2%) had 3 or more PES. The most common PESs were atrial cardiopathy (23.9%), left ventricular dysfunction (22.0%), and cardiac valve disease (12.9%). The presence of additional PESs was associated with age ≥60 years (p < 0.001), RoPE score ≤6 (p ≤0.001), and the presence of comorbidities including diabetes mellitus (p = 0.004), hypertension (p≤ 0.001), and ischaemic heart disease (p = 0.011). CONCLUSION A large proportion of ESUS patients with PFOs had concomitant PESs. The presence of concomitant PESs was associated with older age and a lower RoPE score. Further, large cohort studies are warranted to investigate the significance of the PES and their overlap with PFOs in ESUS.
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Affiliation(s)
- Keith Zhi Xian Toh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore,
| | - Ming Yi Koh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Jamie S Y Ho
- Royal Free London NHS Foundation Trust, London, UK
| | - Kathleen Hui Xin Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yong Qin Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Xintong Chen
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jun Tao Fang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Elliot Yeung Chong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Isis Claire Z Y Lim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Christopher Y K Chua
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Yinghao Lim
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Bernard P L Chan
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Vijay K Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Leonard L L Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Ching Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Benjamin Y Q Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
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21
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Teo YH, Tan BKJ, Tan NKW, Yap DWT, Chai YX, Teo YN, Sia CH, Sundar R, Tan E, See A, Toh ST. Obstructive sleep apnea and the incidence and mortality of gastrointestinal cancers: a systematic review and meta-analysis of 5,120,837 participants. J Gastrointest Oncol 2022; 13:2789-2798. [PMID: 36636076 PMCID: PMC9830329 DOI: 10.21037/jgo-22-153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 08/12/2022] [Indexed: 12/29/2022] Open
Abstract
Background Emerging evidence has shown higher overall cancer incidence in patients with obstructive sleep apnea. Gastrointestinal cancers, including esophageal, stomach, liver, pancreas, and colorectal cancers account for 26% of incident cancers. However, the link between gastrointestinal cancers and obstructive sleep apnea is still unclear. We performed a systematic review and meta-analysis (registered PROSPERO CRD42021220836) to investigate the association between obstructive sleep apnea and incidence of gastrointestinal cancer. Methods We searched four electronic databases (PubMed, Embase, Cochrane Library, Scopus) and included studies published from inception till 15th November 2020 reporting the association of obstructive sleep apnea with gastrointestinal cancer incidence. Extracted data was meta-analyzed in a random-effects model. Results A total of seven studies were included, forming a combined cohort of 5,120,837 patients. Studies which adjusted for demographics and comorbidities were included in meta-analysis. Among four studies with 7-11 years of median follow-up, patients with obstructive sleep apnea experienced increased incidence of colorectal cancer (HR 1.70, 95% CI: 1.48-1.96, I2=22%). Pancreatic cancer incidence was nominally increased in three studies (HR 1.36, 95% CI: 0.88-2.09, I2=96), though this was not statistically significant. There was no association between obstructive sleep apnea and liver cancer incidence among three studies (HR 0.99, 95% CI: 0.81-1.22, I2=84). However, the lack of a statistically significant relationship between obstructive sleep apnea and pancreatic cancer in our meta-analysis does not necessarily imply the true absence of an association. Conclusions An increased risk of colorectal cancer was seen in patients with obstructive sleep apnea among studies with long-term follow-up. Further research is required to explore the utility of incorporating obstructive sleep apnea screening into colorectal cancer screening guidelines to identify high-risk individuals and to confirm a possible association of obstructive sleep apnea with pancreatic cancer. PROSPERO Registration CRD42021220836.
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Affiliation(s)
- Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Yi Xuen Chai
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Yao Neng Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Ching-Hui Sia
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore;,Department of Cardiology, National University Health System, Singapore, Singapore
| | - Raghav Sundar
- Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
| | - Emile Tan
- Department of Colorectal Surgery, Singapore General Hospital, Singapore, Singapore
| | - Anna See
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital, Singapore, Singapore;,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore
| | - Song Tar Toh
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital, Singapore, Singapore;,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore;,Duke-NUS Sleep Centre, SingHealth, Singapore, Singapore
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22
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Lin NH, Ho JSY, Djohan AH, Ho VWT, Teo YN, Teo YH, Syn NL, Aye YN, Soh RYH, Yeo TC, Sim HW, Tan HC, Chan MY, Sia CH. Percutaneous coronary intervention in patients aged 80 years old and above: a systematic review and meta-analysis. AsiaIntervention 2022; 8:123-131. [PMID: 36483276 PMCID: PMC9706774 DOI: 10.4244/aij-d-21-00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 06/01/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Ischaemic heart disease remains the main cause of death in the world. With increasing age, frailty and comorbidities, senior patients aged 80 years old and above who undergo percutaneous coronary intervention (PCI) are at higher risk of mortality and other complications. AIMS We aimed to examine the overall outcomes for this group of patients. METHODS Four databases (PUBMED, EMBASE, SCOPUS and CENTRAL) were searched. Studies with patients aged 80 years old and above who underwent PCI for all indications were included. Pooled outcomes of all-cause death, cardiac death, in-hospital death, subsequent stroke/transient ischaemic attack (TIA), subsequent myocardial infarction (MI), subsequent congestive cardiac failure (CCF), and overall major adverse cardiac events (MACE) were obtained for meta-analysis. RESULTS From 2,566,004 patients, the pooled cumulative incidence of death was 19.22%, cardiac death was 7.78%, in-hospital death was 7.16%, subsequent stroke/TIA was 1.54%, subsequent MI was 3.58%, subsequent CCF was 4.74%, and MACE was 17.51%. The mortality rate of all patients was high when followed up for 3 years (33.27%). ST-elevation myocardial infarction patients had more outcomes of in-hospital death (14.24% vs 4.89%), stroke/TIA (1.93% vs 0.12%), MI (3.68 vs 1.55%) and 1-year mortality (26.16% vs 13.62%), when compared to non-ST-elevation myocardial infarction patients. CONCLUSIONS There was a high mortality rate at 1 year and 3 years post-PCI in the overall population of senior patients aged 80 years old and above, regardless of indication. This necessitates further studies to explore the implications of these observations.
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Affiliation(s)
- Norman H Lin
- Department of Cardiology, National University Heart Centre, Singapore
| | - Jamie S-Y Ho
- Academic Foundation Programme, Royal Free London NHS Foundation Trust, London, United Kingdom
| | | | - Vanda Wen-Teng Ho
- Division of Geriatric Medicine, University Medicine Cluster, National University Health System, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yin Nwe Aye
- Department of Cardiology, National University Heart Centre, Singapore
| | - Rodney Y H Soh
- Department of Cardiology, National University Heart Centre, Singapore
| | - Tiong-Cheng Yeo
- Department of Cardiology, National University Heart Centre, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Hui-Wen Sim
- Department of Cardiology, National University Heart Centre, Singapore
| | - Huay-Cheem Tan
- Department of Cardiology, National University Heart Centre, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Mark Y Chan
- Department of Cardiology, National University Heart Centre, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ching-Hui Sia
- Department of Cardiology, National University Heart Centre, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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23
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Tan S, Ho CESM, Teo YN, Teo YH, Chan MYY, Lee CH, Evangelista LKM, Lin W, Chong YF, Yeo TC, Sharma VK, Wong RCC, Tan BYQ, Yeo LLL, Chai P, Sia CH. Prevalence and incidence of stroke, white matter hyperintensities, and silent brain infarcts in patients with chronic heart failure: A systematic review, meta-analysis, and meta-regression. Front Cardiovasc Med 2022; 9:967197. [PMID: 36186994 PMCID: PMC9520068 DOI: 10.3389/fcvm.2022.967197] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
IntroductionHeart failure (HF) is associated with ischemic stroke (IS). However, there are limited studies on the prevalence of IS, white matter hyperintensities (WMHs), and silent brain infarcts (SBIs). Furthermore, interaction with ejection fraction (EF) is unclear.MethodsWe searched three databases (viz., PubMed, Embase, and Cochrane) for studies reporting the incidence or prevalence of IS, WMHs, and SBIs in HF. A total of two authors independently selected included studies. We used random-effects models, and heterogeneity was evaluated with I2 statistic. Meta-regression was used for subgroup analysis.ResultsIn total, 41 articles involving 870,002 patients were retrieved from 15,267 records. Among patients with HF, the pooled proportion of IS was 4.06% (95% CI: 2.94–5.59), and that of WMHs and SBIs was higher at 15.67% (95% CI: 4.11–44.63) and 23.45% (95% CI: 14.53–35.58), respectively. Subgroup analysis of HFpEF and HFrEF revealed a pooled prevalence of 2.97% (95% CI: 2.01–4.39) and 3.69% (95% CI: 2.34–5.77), respectively. Subgroup analysis of WMH Fazekas scores 1, 2, and 3 revealed a decreasing trend from 60.57 % (95% CI: 35.13–81.33) to 11.57% (95% CI: 10.40–12.85) to 3.07% (95% CI: 0.95–9.47). The relative risk and hazard ratio of patients with HF developing IS were 2.29 (95% CI: 1.43–3.68) and 1.63 (95% CI: 1.22–2.18), respectively. Meta-regression showed IS prevalence was positively correlated with decreasing anticoagulant usage.ConclusionWe obtained estimates for the prevalence of IS, WMH, and SBI in HF from systematic review of the literature.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?RecordID=255126, PROSPERO [CRD42021255126].
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Affiliation(s)
- Sean Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Clare Elisabeth Si Min Ho
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Mark Yan-Yee Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | | | - Weiqin Lin
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Yao-Feng Chong
- Division of Neurology, University Medicine Cluster, National University Health System, Singapore, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Vijay Kumar Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Division of Neurology, University Medicine Cluster, National University Health System, Singapore, Singapore
| | - Raymond C. C. Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Benjamin Y. Q. Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Division of Neurology, University Medicine Cluster, National University Health System, Singapore, Singapore
| | - Leonard L. L. Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Division of Neurology, University Medicine Cluster, National University Health System, Singapore, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
- *Correspondence: Ching-Hui Sia
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24
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Yeo BSY, Koh JH, Tan BKJ, Ding Y, Teo YH, Alkan U, See A, Loh S, Toh ST. Improved Inflammatory and Cardiometabolic Profile After Soft-Tissue Sleep Surgery for Obstructive Sleep Apnea: A Systematic Review and Meta-analysis. JAMA Otolaryngol Head Neck Surg 2022; 148:862-869. [PMID: 35951318 PMCID: PMC9372898 DOI: 10.1001/jamaoto.2022.2285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/23/2022] [Indexed: 11/14/2022]
Abstract
Importance Obstructive sleep apnea (OSA) is associated with a rise in serum inflammatory markers, which may be attenuated by sleep surgery. Objective To evaluate whether sleep surgery was associated with improved levels of proinflammatory markers in adults with OSA. Data Sources Two authors independently searched Cochrane, Embase, and PubMed databases from inception through June 14, 2022. Study Selection Two authors searched the Cochrane, Embase, and PubMed databases for studies comparing preoperative and postoperative levels of serum biomarkers in patients undergoing sleep surgery. Data Extraction and Synthesis Data were extracted from included articles into a structured proforma. Meta-analyses of the standardized mean difference (SMD) were conducted in random-effects models. To ensure relevance to clinicians and patients, the probability of benefit and number needed to treat were calculated for outcomes that demonstrated a statistically significant effect after sleep surgery. Main Outcomes and Measures The primary outcome was the preoperative and postoperative levels of serum biomarkers in patients undergoing sleep surgery, including C-reactive protein (CRP), glucose, low-density lipoprotein (LDL), high-density lipoprotein (HDL), and interleukin-6 (IL-6). Data analysis was performed from April to May 2022. Results Of the 3218 studies screened, 26 studies with 1187 patients (mean [SD] age, 42.8 [11.1] years; 932 [78.5%] men and 255 [21.5%] women) were included. Soft-tissue sleep surgery was associated with a large decrease in CRP (SMD, -0.377; 95% CI, -0.617 to -0.137), total cholesterol (SMD, -0.267; 95% CI, -0.417 to -0.116), LDL (SMD, -0.201; 95% CI, -0.344 to -0.058), IL-6 (SMD, -1.086; 95% CI, -1.952 to -0.221), tumor necrosis factor-α (SMD, -0.822; 95% CI, -1.617 to -0.027), triglyceride (SMD, -0.186; 95% CI, -0.301 to -0.071), and leptin (SMD, -0.519; 95% CI, -0.954 to -0.083) in patients with OSA. Meta-regression highlighted that increased age, higher preoperative score for cumulative sleep time percentage with oxyhemoglobin saturation less than 90% (CT90), and greater change in CT90 postoperatively were associated with a greater decrease in serum CRP levels after soft-tissue sleep surgery. A greater reduction in apnea hypopnea index (AHI) was strongly associated with a greater reduction in total cholesterol and LDL. A greater reduction in body mass index and AHI were also associated with a greater increase in HDL. Conclusions and Relevance The findings of this systematic review and meta-analysis of 26 studies suggest that sleep surgery is associated with decreased levels of CRP, total cholesterol, LDL, triglyceride, IL-6, leptin, and TNF-α, which may improve the inflammatory and cardiometabolic profile of patients who undergo sleep surgery.
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Affiliation(s)
- Brian Sheng Yep Yeo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jin Hean Koh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Yichen Ding
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Uri Alkan
- Department of Otorhinolaryngology−Head and Neck Surgery, Rabin Medical Center, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Anna See
- Department of Otorhinolaryngology−Head and Neck Surgery, Singapore General Hospital, Singapore
- SingHealth Duke University−National University of Singapore Sleep Centre, Singapore
| | - Shaun Loh
- Department of Otorhinolaryngology−Head and Neck Surgery, Singapore General Hospital, Singapore
- SingHealth Duke University−National University of Singapore Sleep Centre, Singapore
| | - Song Tar Toh
- Department of Otorhinolaryngology−Head and Neck Surgery, Singapore General Hospital, Singapore
- SingHealth Duke University−National University of Singapore Sleep Centre, Singapore
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25
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Siah QZ, Pang BY, Ye TT, Ho JS, Teo YH, Teo YN, Syn NL, Tan BY, Wong RC, Yeo LL, Lee EC, Li TY, Poh KK, Kong WK, Yeo TC, Chai P, Sia CH. Incidence of Acute Cerebrovascular Events in Patients with Rheumatic or Calcific Mitral Stenosis: A Systematic Review and Meta-analysis. Hellenic J Cardiol 2022; 70:80-84. [PMID: 36041698 DOI: 10.1016/j.hjc.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/16/2022] [Accepted: 08/23/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Patients with mitral stenosis (MS) may be predisposed to acute cerebrovascular events (ACE) and peripheral thromboembolic events (TEE). Concomitant atrial fibrillation (AF), mitral annular calcification (MAC) and rheumatic heart disease (RHD) are independent risk factors. Our aim was to evaluate the incidence of ACEs in MS patients and the implications of AF, MAC, and RHD on thromboembolic risks. METHODS This systematic review was registered on PROSPERO (CRD42021291316). Six databases were searched from inception to 19th December 2021. The clinical outcomes were composite ACE, ischaemic stroke/transient ischaemic attack (TIA), and peripheral TEE. RESULTS We included 16 and 9 papers, respectively, in our qualitative and quantitative analyses. The MS cohort with AF had the highest incidence of composite ACE (31.55%; 95%CI 3.60-85.03; I2=99%), followed by the MAC (14.85%; 95%CI 7.21-28.11; I2=98%), overall MS (8.30%; 95%CI 3.45-18.63; I2=96%) and rheumatic MS population (4.92%; 95%CI 3.53-6.83; I2=38%). Stroke/TIA were reported in 29.62% of the concomitant AF subgroup (95%CI 2.91-85.51; I2=99%) and in 7.11% of the overall MS patients (95%CI 1.91-23.16; I2=97%). However, the heterogeneity of the pooled incidence of clinical outcomes in all groups, except the rheumatic MS group, were substantial and significant. The logit-transformed proportion of composite ACE increased by 0.0141 (95% CI 0.0111-0.0171; p<0.01) per year of follow-up. CONCLUSION In the MS population, MAC and concomitant AF are risk factors for the development of ACE. The scarcity of data in our systematic review reflects the need for further studies to explore thromboembolic risks in all MS subtypes.
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Affiliation(s)
- Qi Zhuang Siah
- School of Medicine, Cardiff University, Wales, United Kingdom.
| | - Bao Yu Pang
- Prince Charles Hospital, Cwm Taf Morgannwg University Health Board, Wales, United Kingdom.
| | - Tiffany Ts Ye
- School of Medicine, Cardiff University, Wales, United Kingdom.
| | - Jamie Sy Ho
- Academic Foundation Year Programme, North Middlesex Hospital University Trust, London, United Kingdom.
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Nicholas Lx Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Benjamin Yq Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore.
| | - Raymond Cc Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
| | - Leonard Ll Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, Department of Medicine, National University Hospital, Singapore.
| | - Edward Cy Lee
- Department of Cardiology, National University Heart Centre Singapore, Singapore.
| | - Tony Yw Li
- Department of Cardiology, National University Heart Centre Singapore, Singapore.
| | - Kian-Keong Poh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
| | - William Kf Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
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26
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Ooi AJQ, Wong C, Tan TWE, Ng TP, Teo YN, Teo YH, Syn NL, Djohan AH, Lim Y, Yeo LLL, Tan BYQ, Chan MYY, Poh KK, Kong WKF, Chai P, Yeo TC, Yip JW, Kuntjoro I, Sia CH. A systematic review and meta-analysis of non-vitamin K antagonist oral anticoagulants vs vitamin K antagonists after transcatheter aortic valve replacement in patients with atrial fibrillation. Eur J Clin Pharmacol 2022; 78:1589-1600. [PMID: 35941300 DOI: 10.1007/s00228-022-03371-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/30/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Transcatheter aortic valve replacement (TAVR) is increasingly carried out in patients with aortic valvular conditions. Atrial fibrillation (AF) is a common comorbidity among patients undergoing TAVR. Despite this, there remains a paucity of data and established guidelines regarding anticoagulation use post-TAVR in patients with AF. METHODS Four databases were searched from inception until 12 October 2021. A title and abstract sieve, full-text review and data extraction were conducted by independent authors, and articles including patients without AF were excluded. The Review Manager (Version 5.4) was utilised in data analysis. RESULTS A total of 25,199 post-TAVR patients with AF were included from seven articles, with 9764 patients on non-vitamin K antagonist oral anticoagulants (NOAC) and 15,435 patients on vitamin K antagonists (VKA). In this analysis, there was a significantly lower risk of all-cause mortality at 1 year (RR: 0.75, CI: 0.58-0.97, p = 0.04, I2 = 56%), and bleeding at 1 year (RR: 0.73, CI: 0.68-0.79, p = < 0.00001, I2 = 0%), between patients on NOAC and VKA. There were no detectable differences between patients on NOAC and VKA for all-cause mortality at 2 years, stroke within 30 days, stroke within 1 year, ischaemic stroke at 1 year and life-threatening bleeding at 30 days. CONCLUSION While the results of this analysis reveal NOAC as a potential alternate treatment modality to VKA in post-TAVR patients with AF, further research is needed to determine the full safety and efficacy profile of NOAC (PROSPERO: CRD42021283548).
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Affiliation(s)
- Amanda Jia Qi Ooi
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chloe Wong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Timothy Wei Ern Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Trina Priscilla Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Neng Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nicholas L Syn
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Andie H Djohan
- Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - Yinghao Lim
- Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - Leonard L L Yeo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Benjamin Y Q Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Neurology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Mark Yan-Yee Chan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - Kian-Keong Poh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - William K F Kong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - Ping Chai
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - Tiong-Cheng Yeo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - James W Yip
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - Ivandito Kuntjoro
- Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore
| | - Ching-Hui Sia
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore. .,Department of Cardiology, National University Heart Centre, Singapore, 119228, Singapore.
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27
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Yap NLX, Kor Q, Teo YN, Teo YH, Syn NL, Mance Evangelista LK, Tan BY, Lin W, Yeo LL, Kong WK, Chong YF, Wong RC, Poh KK, Yeo TC, Sharma VK, Chai P, Chan MY, Goh FQ, Sia CH. Prevalence and Incidence of Cognitive Impairment and Dementia in Heart Failure - A Systematic Review, Meta-Analysis and Meta-Regression. Hellenic J Cardiol 2022; 67:48-58. [PMID: 35839985 DOI: 10.1016/j.hjc.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/14/2022] [Accepted: 07/07/2022] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION The burden of cognitive impairment in HF patients is significant and leads to longer hospital stay, higher readmission rates, and increased mortality. This review seeks to synthesize the available studies to determine the prevalence and incidence of cognitive impairment and dementia in HF patients. METHODS PubMed, Embase, PsychoINFO and Cochrane databases were systematically searched from their inception through to 3 May 2021. Study and population characteristics, total patients with HF, prevalence of cognitive impairment and dementia in HF patients and cognitive assessment tool were abstracted by two reviewers. RESULTS In heart failure patients, overall prevalence for cognitive impairment and dementia was 41.42% (CI) and 19.79% (dementia) respectively. We performed a meta-regression analysis which demonstrated that the risk of cognitive impairment and dementia increased with age. DISCUSSION Further research should investigate whether HF accelerates the rate of cognitive decline and the progression of dementia.
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Affiliation(s)
- Nicole Li Xian Yap
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228
| | - Qianyi Kor
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228
| | - Lauren Kay Mance Evangelista
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Benjamin Yq Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Division of Neurology, Department of Medicine, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074
| | - Weiqin Lin
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Leonard Ll Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Division of Neurology, Department of Medicine, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074
| | - William Kf Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Yao Feng Chong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Division of Neurology, Department of Medicine, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074
| | - Raymond Cc Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Kian Keong Poh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Vijay Kumar Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Division of Neurology, Department of Medicine, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Mark Y Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Fang Qin Goh
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 10, Singapore 119228; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228.
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Teo YN, Teo YH, Khoo LP, Yin Chang EW, Tan YH, Chiang J, Yang VS, Poon E, Somasundaram N, Farid M, Tao M, Lim ST, Chan JY. MO30-5 Clinicopathological factors affecting prognosis in marginal zone lymphoma in an Asian tertiary cancer centre. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.05.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Tan BKJ, Tan NKW, Teo YH, Yap DWT, Raghupathy J, Gao EY, Toh ST, See A. Association of obstructive sleep apnea with thyroid cancer incidence: a systematic review and meta-analysis. Eur Arch Otorhinolaryngol 2022; 279:5407-5414. [PMID: 35708764 DOI: 10.1007/s00405-022-07457-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/16/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Obstructive sleep apnea (OSA) is a postulated carcinogen based on epidemiological associations with all-cancer incidence and non-thyroid biological models. However, associations with thyroid carcinoma are unclear. METHODS We included observational/randomized studies of associations of OSA with thyroid carcinoma incidence/mortality in adults, from four databases. Random-effects meta-analyses and the population attributable fraction (PAF; from published global OSA prevalence estimates) were computed. RESULTS We included four observational studies (N = 2,839,325), all with moderate/low risk of bias. OSA diagnosis was associated with twofold incidence of thyroid carcinoma (pooled HR 2.32, 95% CI 1.35-3.98, I2 = 95%), after multi-adjustment for demographics, BMI, smoking, alcohol, and comorbidities. Subgroup analysis of studies with at least 5 years of follow-up showed a stronger association of OSA with thyroid cancer incidence (pooled HR 3.27, 95% CI 2.80-3.82, I2 = 0%). Up to 14.5% (95% CI 4.29-27.6%) of incident thyroid carcinomas globally may be associated with OSA. Thyroid carcinoma mortality data was unavailable. CONCLUSIONS OSA is associated with higher thyroid carcinoma incidence, though this does not prove causation. Biological/clinical studies should investigate OSA severity in relation to thyroid carcinoma progression and mortality, stratified by tumor histology.
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Affiliation(s)
- Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Jaivikash Raghupathy
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Esther Yanxin Gao
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Song Tar Toh
- Department of Otorhinolaryngology-Head and Neck Surgery, Singapore General Hospital (SGH), Outram Road, Singapore, 169608, Singapore.,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore
| | - Anna See
- Department of Otorhinolaryngology-Head and Neck Surgery, Singapore General Hospital (SGH), Outram Road, Singapore, 169608, Singapore. .,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore.
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Teo YH, Teo YN, Khoo LP, Chang EWY, Tan YH, Chiang J, Yang VS, Poon E, Somasundaram N, Farid M, Tao M, Lim ST, Chan JY. Clinicopathological factors affecting prognosis in marginal zone lymphoma in Asian patients: a cohort study. Leuk Lymphoma 2022; 63:2723-2726. [DOI: 10.1080/10428194.2022.2086242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Lay Poh Khoo
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - Esther Wei Yin Chang
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
| | - Ya Hwee Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
| | - Jianbang Chiang
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
| | - Valerie Shiwen Yang
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
- Institute of Molecular and Cell Biology, Singapore
- Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Eileen Poon
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
| | - Nagavalli Somasundaram
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
- Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Mohamad Farid
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
- Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Miriam Tao
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
- Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Soon Thye Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
- Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Jason Yongsheng Chan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
- SingHealth Duke-NUS Blood Cancer Centre, Singapore
- Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore
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Goh S, Wong RSM, Quah ELY, Chua KZY, Lim WQ, Ng ADR, Tan XH, Kow CS, Teo YH, Lim EG, Pisupati A, Chong EJX, Kamal NHA, Tan LHE, Tay KT, Ong YT, Chiam M, Lee ASI, Chin AMC, Mason S, Krishna LKR. Mentoring in palliative medicine in the time of covid-19: a systematic scoping review : Mentoring programs during COVID-19. BMC Med Educ 2022; 22:359. [PMID: 35545787 PMCID: PMC9094135 DOI: 10.1186/s12909-022-03409-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 04/06/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION The redeployment of mentors and restrictions on in-person face-to-face mentoring meetings during the COVID-19 pandemic has compromised mentoring efforts in Palliative Medicine (PM). Seeking to address these gaps, we evaluate the notion of a combined novice, peer-, near-peer and e-mentoring (CNEP) and interprofessional team-based mentoring (IPT) program. METHODS A Systematic Evidence Based Approach (SEBA) guided systematic scoping review was carried out to study accounts of CNEP and IPT from articles published between 1st January 2000 and 28th February 2021. To enhance trustworthiness, concurrent thematic and content analysis of articles identified from structured database search using terms relating to interprofessional, virtual and peer or near-peer mentoring in medical education were employed to bring together the key elements within included articles. RESULTS Fifteen thousand one hundred twenty one abstracts were reviewed, 557 full text articles were evaluated, and 92 articles were included. Four themes and categories were identified and combined using the SEBA's Jigsaw and Funnelling Process to reveal 4 domains - characteristics, mentoring stages, assessment methods, and host organizations. These domains suggest that CNEP's structured virtual and near-peer mentoring process complement IPT's accessible and non-hierarchical approach under the oversight of the host organizations to create a robust mentoring program. CONCLUSION This systematic scoping review forwards an evidence-based framework to guide a CNEP-IPT program. At the same time, more research into the training and assessment methods of mentors, near peers and mentees, the dynamics of mentoring interactions and the longitudinal support of the mentoring relationships and programs should be carried out.
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Affiliation(s)
- Sherill Goh
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Ruth Si Man Wong
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Elaine Li Ying Quah
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Keith Zi Yuan Chua
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Wei Qiang Lim
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Aubrey Ding Rui Ng
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Xiu Hui Tan
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Cheryl Shumin Kow
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Elijah Gin Lim
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Anushka Pisupati
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Eleanor Jia Xin Chong
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Nur Haidah Ahmad Kamal
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Lorraine Hui En Tan
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Kuang Teck Tay
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Yun Ting Ong
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Min Chiam
- Division of Cancer Education, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore.
| | - Alexia Sze Inn Lee
- Division of Cancer Education, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
| | - Annelissa Mien Chew Chin
- Medical Library, National University of Singapore Libraries, Block MD6, Centre for Translational Medicine, 14 Medical Drive, #05-01, Singapore, 117599, Singapore
| | - Stephen Mason
- Palliative Care Institute Liverpool, Academic Palliative & End of Life Care Centre, University of Liverpool, Cancer Research Centre, University of Liverpool, 200 London Rd, Liverpool, L3 9TA, UK
| | - Lalit Kumar Radha Krishna
- Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Level 11, Singapore, 119228, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
- Division of Cancer Education, National Cancer Centre Singapore, 11 Hospital Cr, Singapore, 169610, Singapore
- Palliative Care Institute Liverpool, Academic Palliative & End of Life Care Centre, University of Liverpool, Cancer Research Centre, University of Liverpool, 200 London Rd, Liverpool, L3 9TA, UK
- Duke-NUS Medical School, National University of Singapore, 8 College Rd, Singapore, 169857, Singapore
- Centre of Biomedical Ethics, National University of Singapore, 21 Lower Kent Ridge Rd, Singapore, 119077, Singapore
- PalC, The Palliative Care Centre for Excellence in Research and Education, PalC c/o Dover Park Hospice, 10 Jalan Tan Tock Seng, Singapore, 308436, Singapore
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Tan BKJ, Teo YH, Tan NKW, Yap DWT, Sundar R, Lee CH, See A, Toh ST. Association of obstructive sleep apnea and nocturnal hypoxemia with all-cancer incidence and mortality: a systematic review and meta-analysis. J Clin Sleep Med 2022; 18:1427-1440. [PMID: 34755597 PMCID: PMC9059590 DOI: 10.5664/jcsm.9772] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
STUDY OBJECTIVES Biological models suggest that obstructive sleep apnea (OSA) is potentially carcinogenic. We aimed to clarify the inconsistent epidemiological literature by considering various traditional and novel OSA severity indices. METHODS We systematically searched PubMed, Embase, Scopus, and the Cochrane Library for observational or randomized studies of associations of OSA, measured by diagnostic codes or any index, each with all-cancer incidence or mortality in adults, compared with participants with no/mild OSA. Two reviewers independently selected studies, extracted data, and evaluated study bias using the Newcastle-Ottawa scale and quality of evidence using GRADE (Grading of Recommendations Assessment, Development, and Evaluation). We performed inverse variance-weighted, random-effects meta-analyses and sensitivity analyses. RESULTS We included 20 observational studies (5,340,965 participants), all with moderate/low bias, from 1,698 records. Based on T90 (sleep duration with oxygen saturation < 90%), patients with OSA who had moderate (T90 > 1.2%, hazard ratio [HR] = 1.28, 95% confidence interval [CI] = 1.07-1.54) and severe nocturnal hypoxemia (T90 > 12%, HR = 1.43, 95% CI = 1.16-1.76) experienced 30%-40% higher pooled all-cancer risk than normoxemic patients, after multiple adjustment for covariates including obesity. Furthermore, severe nocturnal hypoxemia nearly tripled all-cancer mortality (HR = 2.66, 95% CI = 1.21-5.85). Patients with apnea-hypopnea index-defined severe OSA, but not moderate OSA, had higher all-cancer risk (HR = 1.18, 95% CI = 1.03-1.35) but similar all-cancer mortality as patients without OSA. An OSA diagnosis was not associated with all-cancer risk. Evidence quality ranged from low to moderate. Insufficient evidence was available on the oxygen desaturation index, lowest/median saturation, and arousal index. CONCLUSIONS In patients with OSA, nocturnal hypoxemia is independently associated with all-cancer risk and mortality. Future studies should explore if risk differs by cancer type, and whether cancer screening and OSA treatment are beneficial. SYSTEMATIC REVIEW REGISTRATION Registry: PROSPERO; URL: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=220836; Identifier: CRD42021220836. CITATION Tan BKJ, Teo YH, Tan NKW, et al. Association of obstructive sleep apnea and nocturnal hypoxemia with all-cancer incidence and mortality: a systematic review and meta-analysis. J Clin Sleep Med. 2022;18(5):1427-1440.
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Affiliation(s)
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Raghav Sundar
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Hematology-Oncology, National University Cancer Institute, National University Hospital, Singapore,Cancer and Stem Cell Biology Program, Duke-National University of Singapore Medical School, Singapore,The N.1 Institute for Health, National University of Singapore, Singapore,Singapore Gastric Cancer Consortium
| | - Chi Hang Lee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Cardiology, National University Health System, Singapore
| | - Anna See
- Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Singapore,Surgery Academic Clinical Program, SingHealth, Singapore,Address correspondence to: Song Tar Toh, MBBS, MMed (ORL), MMed (Sleep Medicine), FAMS (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322; ; and Anna See, MBBS, MMed (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322;
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Singapore,Surgery Academic Clinical Program, SingHealth, Singapore,SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore,Address correspondence to: Song Tar Toh, MBBS, MMed (ORL), MMed (Sleep Medicine), FAMS (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322; ; and Anna See, MBBS, MMed (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322;
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Cheong CWS, Quah ELY, Chua KZY, Lim WQ, Toh RQE, Chiang CLL, Ng CWH, Lim EG, Teo YH, Kow CS, Vijayprasanth R, Liang ZJ, Tan YKI, Tan JRM, Chiam M, Lee ASI, Ong YT, Chin AMC, Wijaya L, Fong W, Mason S, Krishna LKR. Post graduate remediation programs in medicine: a scoping review. BMC Med Educ 2022; 22:294. [PMID: 35443679 PMCID: PMC9020048 DOI: 10.1186/s12909-022-03278-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Recognizing that physicians may struggle to achieve knowledge, skills, attitudes and or conduct at one or more stages during their training has highlighted the importance of the 'deliberate practice of improving performance through practising beyond one's comfort level under guidance'. However, variations in physician, program, contextual and healthcare and educational systems complicate efforts to create a consistent approach to remediation. Balancing the inevitable disparities in approaches and settings with the need for continuity and effective oversight of the remediation process, as well as the context and population specific nature of remediation, this review will scrutinise the remediation of physicians in training to better guide the design, structuring and oversight of new remediation programs. METHODS Krishna's Systematic Evidence Based Approach is adopted to guide this Systematic Scoping Review (SSR in SEBA) to enhance the transparency and reproducibility of this review. A structured search for articles on remediation programs for licenced physicians who have completed their pre-registration postings and who are in training positions published between 1st January 1990 and 31st December 2021 in PubMed, Scopus, ERIC, Google Scholar, PsycINFO, ASSIA, HMIC, DARE and Web of Science databases was carried out. The included articles were concurrently thematically and content analysed using SEBA's Split Approach. Similarities in the identified themes and categories were combined in the Jigsaw Perspective and compared with the tabulated summaries of included articles in the Funnelling Process to create the domains that will guide discussions. RESULTS The research team retrieved 5512 abstracts, reviewed 304 full-text articles and included 101 articles. The domains identified were characteristics, indications, frameworks, domains, enablers and barriers and unique features of remediation in licenced physicians in training programs. CONCLUSION Building upon our findings and guided by Hauer et al. approach to remediation and Taylor and Hamdy's Multi-theories Model, we proffer a theoretically grounded 7-stage evidence-based remediation framework to enhance understanding of remediation in licenced physicians in training programs. We believe this framework can guide program design and reframe remediation's role as an integral part of training programs and a source of support and professional, academic, research, interprofessional and personal development.
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Affiliation(s)
- Clarissa Wei Shuen Cheong
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Elaine Li Ying Quah
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Keith Zi Yuan Chua
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Wei Qiang Lim
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Rachelle Qi En Toh
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Christine Li Ling Chiang
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Caleb Wei Hao Ng
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Elijah Gin Lim
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Cheryl Shumin Kow
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Raveendran Vijayprasanth
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Zhen Jonathan Liang
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Yih Kiat Isac Tan
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Javier Rui Ming Tan
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Min Chiam
- Division of Cancer Education, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 169610 Singapore
| | - Alexia Sze Inn Lee
- Division of Cancer Education, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 169610 Singapore
| | - Yun Ting Ong
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
| | - Annelissa Mien Chew Chin
- Medical Library, National University of Singapore Libraries, Blk MD6, Centre, 14 Medical Dr, #05-01 for Translational Medicine, Singapore, 117599 Singapore
| | - Limin Wijaya
- Duke-NUS Medical School, 8 College Road, Singapore, 169857 Singapore
- Department of Infectious Diseases, Singapore General Hospital, Outram Road, Singapore, 169608 Singapore
| | - Warren Fong
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Duke-NUS Medical School, 8 College Road, Singapore, 169857 Singapore
- Department of Rheumatology and Immunology, Singapore General Hospital, 16 College Road, Block 6 Level 9, Singapore, 169854 Singapore
| | - Stephen Mason
- Palliative Care Institute Liverpool, Academic Palliative & End of Life Care Centre, Cancer Research Centre, University of Liverpool, 200 London Road, Liverpool, L3 9TA UK
| | - Lalit Kumar Radha Krishna
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228 NUHS Tower Block, Level, Singapore, 11 Singapore
- Division of Supportive Palliative and Care, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 16961 Singapore
- Division of Cancer Education, National Cancer Centre Singapore, 11 Hospital Crescent, Singapore, 169610 Singapore
- Duke-NUS Medical School, 8 College Road, Singapore, 169857 Singapore
- Palliative Care Institute Liverpool, Academic Palliative & End of Life Care Centre, Cancer Research Centre, University of Liverpool, 200 London Road, Liverpool, L3 9TA UK
- Centre for Biomedical Ethics, National University of Singapore, Blk MD11, 10 Medical Drive, #02-03, Singapore, 117597 Singapore
- PalC, The Palliative Care Centre for Excellence in Research and Education, PalC c/o Dover Park Hospice, 10 Jalan Tan Tock Seng, Singapore, 308436 Singapore
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Chieng JHL, Sia TK, Teo YH, Wong JZA, Ng TJY, Teo YN, Syn NL, Cherian R, Lim YC, Chai P, Lin W, Wong RC, Sia CH. Evaluating the Initiation of Sodium/Glucose Cotransporter 2 Inhibitors within 2 Weeks of an Acute Hospital Admission: A Systematic Review and Meta-Analysis of Nine Clinical Trials. Med Princ Pract 2022; 31:215-223. [PMID: 35378527 PMCID: PMC9274826 DOI: 10.1159/000524435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/20/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE Recent studies have increasingly shown the benefits of using sodium/glucose cotransporter 2 inhibitor (SGLT2i). However, there are concerns regarding the initiation of SGLT2i during acute hospital admissions due to the potential increased risk of complications. We conducted a systematic review and meta-analysis to evaluate the efficacy and safety of SGLT2i initiation within 2 weeks of an acute hospital admission. METHODS Four electronic databases (PubMed, Embase, Cochrane, and Scopus) were searched for articles published from inception up to 27 March 2021 that evaluated the efficacy and/or safety of SGLT2i initiation within 2 weeks of an acute hospital admission. Random-effects pair-wise meta-analysis models were utilized to summarize the studies. The protocol was registered with PROSPERO (CRD42021245492). RESULTS Nine clinical trials were included with a combined cohort of 1,758 patients. Patients receiving SGLT2i had a mean increase in 24-h urine volume of +487.55 mL (95% CI 126.86-848.25; p = 0.008) compared to those not started on SGLT2i. Patients with heart failure treated with SGLT2i had a 27% relative risk reduction in rehospitalizations for heart failure, compared to controls (risk ratio 0.73; p = 0.005). There were no differences in other efficacy and safety outcomes examined. CONCLUSION There was no increased harm with initiation of SGLT2i within 2 weeks of an acute hospital admission, and its use reduced the relative risk of rehospitalizations for heart failure in patients with heart failure. It was also associated with increased urine output. However, current evidence pool is limited, especially in specific population subtypes.
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Affiliation(s)
- Jenny Hui Ling Chieng
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tze Kai Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Joseph Zi An Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tricia Jing Ying Ng
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nicholas L.X. Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Robin Cherian
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Yoke-Ching Lim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Weiqin Lin
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Raymond C.C. Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
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35
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Yip ASY, Leong S, Teo YH, Teo YN, Syn NLX, See RM, Wee CF, Chong EY, Lee CH, Chan MY, Yeo TC, Wong RCC, Chai P, Sia CH. Effect of sodium-glucose cotransporter-2 (SGLT2) inhibitors on serum urate levels in patients with and without diabetes: a systematic review and meta-regression of 43 randomized controlled trials. Ther Adv Chronic Dis 2022; 13:20406223221083509. [PMID: 35342538 PMCID: PMC8949773 DOI: 10.1177/20406223221083509] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/08/2022] [Indexed: 01/10/2023] Open
Abstract
Objectives Sodium-glucose cotransporter-2 (SGLT2) inhibitors have been found to reduce serum urate in patients with type 2 diabetes mellitus. To evaluate if this effect applies to both patients with and without diabetes, we conducted a systematic review and meta-analysis of SGLT2 inhibitors on serum urate levels in this population. Methods Four electronic databases (PubMed, Embase, Cochrane and SCOPUS) were searched on 25 September 2021 for articles published from 1 January 2000 up to 25 September 2021, for studies that examined the effect of SGLT2 inhibitors on serum urate in study subjects. Random-effects meta-analysis was performed, with subgroup analyses on the type of SGLT2 inhibitor agent administered, presence of type 2 diabetes mellitus, presence of chronic kidney disease and drug dose. Results A total of 43 randomized controlled trials, with a combined cohort of 31,921 patients, were included. Both patients with [-31.48 μmol/L; 95% confidence interval (CI): -37.35 to -25.60] and without diabetes (-91.38 μmol/L; 95% CI: -126.53 to -56.24) on SGLT2 inhibitors had significantly lower urate levels when compared with placebo. This treatment effect was similarly observed across different types of SGLT2 inhibitors. However, in type 2 diabetes mellitus (T2DM) patients with chronic kidney disease, the reduction in serum urate with SGLT2 inhibitors became insignificant (95% CI: -22.17 to 5.94, p < 0.01). Conclusion This study demonstrated that SGLT2 inhibitors are beneficial in reducing serum urate in patients with and without diabetes. SGLT2 inhibitors could therefore contribute to the general treatment of hyperuricaemia.
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Affiliation(s)
- Alicia Swee Yan Yip
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shariel Leong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas L X Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ray Meng See
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Caitlin Fern Wee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Elliot Yeung Chong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Mark Y Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Raymond C C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Teo YN, Teo YH, Syn NL, Yoong CSY, Cheong AJY, Wee CF, Lim YC, Lee CH, Yeo TC, Chai P, Wong RCC, Lim W, Sia CH. COMPARING SGLT2 INHIBITORS AGAINST SACUBITRIL/VALSARTAN IN HEART FAILURE: A SYSTEMATIC REVIEW AND NETWORK META-ANALYSIS. J Am Coll Cardiol 2022. [DOI: 10.1016/s0735-1097(22)04458-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Ye TTST, Siah QZ, Tan BY, Ho JS, Syn NL, Teo YH, Teo YN, Yeo LL, Sia CH. Abstract TP208: Prevalence Of Adverse Cerebrovascular Events In Hypertrophic Cardiomyopathy Patients With And Without Atrial Fibrillation: A Systematic Review And Meta-analysis. Stroke 2022. [DOI: 10.1161/str.53.suppl_1.tp208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
Hypertrophic cardiomyopathy (HCM) predisposes to adverse cerebrovascular events (ACEs) including ischaemic stroke, transient ischaemic attack (TIA), thromboembolic event (TEE) and peripheral embolism (PE). Concomitant atrial fibrillation (AF), which is more prevalent in the HCM population, confers even higher risk. Our aims are to report the prevalence of ACEs in HCM patients and to determine the additional clinical risks of AF on the prognosis of this population.
Methods:
A systematic literature search was performed on PubMed, Scopus, Embase/ Ovid and Cochrane library from inception to 20
th
March 2021. No limitations on language or date of publication were applied. The primary outcome of this review was to examine and compare the prevalence of ischaemic stroke in the HCM population with or without AF. Secondary outcomes were to identify their risk of non-stroke clinical outcomes such as TIA, non-specified TEE and PE. Non-specified TEE in our paper only referred to thromboembolic events whereby their types were not specified in the included studies. Meta-analysis was performed using StataSE 16 software, and heterogeneity was assessed using
I
2
test.
Results:
A total of 713 studies were identified, and 35 articles with 42,570 patients were included. The pooled prevalence of stroke/ TIA was 7.45% (95% confidence interval [CI] 5.80 - 9.52,
p
= 0.000) across 24 studies in the overall HCM population of 37,643 patients. AF contributed to a significantly higher risk of non-specified TEE (Risk ratio [RR] 4.49, 95% CI 1.88 - 10.73,
p
= 0.0007,
I
2
= 87.0) and total stroke/ TIA (RR 3.26, 95% CI 1.75 - 6.08,
p
= 0.0002,
I
2
= 76.0) in our study population. Within the apical HCM (ApHCM) population, the prevalence of stroke/ TIA was 9.30% (95% CI 6.64 - 12.87,
p
= 0.316).
Conclusion:
Our study concludes that concomitant AF diagnosis increases the risk of developing thromboembolic events and the stroke-related mortality rate. Although the prevalence of stroke/ TIA in the ApHCM subtype was slightly higher than the overall HCM population, further studies investigating the clinical outcomes of HCM subtypes are warranted.
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Affiliation(s)
| | | | - Benjamin Y Tan
- Dept of Medicine, Yong Loo Lin Sch of Medicine, National Univ of Singapore, Singapore, Singapore
| | - Jamie S Ho
- Academic Foundation Year Programme, North Middlesex Hosp Univ Trust, London, United Kingdom
| | - Nicholas L Syn
- Yong Loo Lin Sch of Medicine, National Univ of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin Sch of Medicine, National Univ of Singapore, Singapore, Singapore
| | - Yao Neng Teo
- Yong Loo Lin Sch of Medicine, National Univ of Singapore, Singapore, Singapore
| | - Leonard L Yeo
- Yong Loo Lin Sch of Medicine, National Univ of Singapore, Singapore, Singapore
| | - Ching-Hui Sia
- Yong Loo Lin Sch of Medicine, National Univ of Singapore, Singapore, Singapore
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38
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Wee CF, Teo YH, Teo YN, Syn NLX, See RM, Leong S, Yip ASY, Ong ZX, Lee CH, Chan MYY, Poh KK, Ong CC, Teo LLS, Singh D, Tan BYQ, Yeo LLL, Kong WKF, Yeo TC, Wong RCC, Chai P, Sia CH. Effects of Sodium/Glucose Cotransporter 2 (SGLT2) Inhibitors on Cardiac Imaging Parameters: A Systematic Review and Meta-analysis of Randomized Controlled Trials. J Cardiovasc Imaging 2022; 30:153-168. [PMID: 35879251 PMCID: PMC9314220 DOI: 10.4250/jcvi.2021.0159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 01/22/2022] [Accepted: 05/14/2022] [Indexed: 12/02/2022] Open
Abstract
Recent studies have shown that sodium/glucose cotransporter 2 (SGLT2) inhibitors might exert favourable changes on cardiac parameters as observed on cardiovascular imaging. We conducted a systematic review and meta-analysis to determine the effects of SGLT2 inhibitors on cardiac imaging parameters. Four electronic databases (PubMed, Embase, Cochrane, Scopus) were searched for studies in which the effects of SGLT2 inhibitors on cardiac imaging parameters were examined. Studies in which a population was administered SGLT2 inhibitors and analysed by echocardiography and/or cardiac magnetic resonance (CMR) imaging were included. Random-effects pair-wise meta-analysis models were utilized to summarize the studies. A total of 11 randomized controlled trials was included with a combined cohort of 910 patients. Comparing patients receiving SGLT2 inhibitors with subjects receiving placebo, the mean change in CMR-measured left ventricular mass (LVM) was −3.87 g (95% confidence interval [CI], −7.77 to 0.04), that in left ventricular end-systolic volume (LVESV) was −5.96 mL (95% CI, −10.52 to −1.41) for combined LVESV outcomes, that in left atrial volume index (LAVi) was −1.78 mL/m2 (95% CI, −3.01 to −0.55) for combined LAVi outcomes, and that in echocardiography-measured E/e′ was −0.73 (95% CI, −1.43 to −0.03). Between-group differences were not observed in LVM and LVESV after indexation. The only between-group difference that persisted was for LAVi. Treatment with SGLT2 inhibitors resulted in reduction in LAVi and E/e′ on imaging, indicating they might have an effect on outcomes associated with LV diastolic function.
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Affiliation(s)
- Caitlin Fern Wee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas LX Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ray Meng See
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shariel Leong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alicia Swee Yan Yip
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Zhi Xian Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Mark Yan-Yee Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Kian-Keong Poh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ching-Ching Ong
- Department of Diagnostic Imaging, National University Hospital, Singapore
| | - Lynette LS Teo
- Department of Diagnostic Imaging, National University Hospital, Singapore
| | - Devinder Singh
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Benjamin YQ Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, University Medicine Cluster, National University Health System, Singapore
| | - Leonard LL Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, University Medicine Cluster, National University Health System, Singapore
| | - William KF Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Raymond CC Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
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Yap DWT, Tan NKW, Tan BKJ, Teo YH, Tan VKM, See A, Toh ST. The Association of Obstructive Sleep Apnea With Breast Cancer Incidence and Mortality: A Systematic Review and Meta-analysis. J Breast Cancer 2022; 25:149-163. [PMID: 35380020 PMCID: PMC9250875 DOI: 10.4048/jbc.2022.25.e11] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 01/08/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose Emerging evidence from animal models suggests that intermittent hypoxia due to obstructive sleep apnea (OSA) is a risk factor for breast cancer. Despite their biological plausibility, human epidemiological studies have reported conflicting results. Therefore, we conducted a meta-analysis to delineate this relationship. Methods We searched the PubMed, Embase, Scopus, and Cochrane Library databases for eligible studies from inception until June 6, 2021. Two reviewers selected randomized trials or observational studies reporting the association between OSA and breast cancer incidence compared with those without OSA. Two reviewers extracted relevant data and assessed the quality of evidence using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework and Newcastle-Ottawa Scale (NOS). We pooled the maximally covariate-adjusted hazard ratios (HRs) using a random-effects inverse variance-weighted meta-analysis and performed pre-specified subgroup analyses. Results We included six studies out of 1,707 records, comprising a combined cohort of 5,165,200 patients. All studies used the International Classification of Diseases codes to classify OSA and breast cancer. OSA patients had a 36% increased breast cancer risk (HR, 1.36; 95% confidence interval [CI], 1.03–1.80; N = 6, I2 = 96%) compared to those without OSA. Most studies adjusted for confounders, such as age, sex, obesity, diabetes mellitus, alcohol use, and hypertension. Subgroup analyses for studies with (1) multivariate adjustment and (2) at least five years of follow-up yielded HRs of 1.35 (95% CI, 0.98–1.87; N = 5, I2 = 96%) and 1.57 (95% CI, 1.14–2.18; N = 4; I2 = 90%), respectively. One Mendelian randomization study suggested a causal relationship, with a two-fold increase in the odds of breast cancer in patients with OSA. Conclusion This meta-analysis suggested that OSA is a risk factor for breast cancer. Future studies should explore the dose-response relationship between OSA and breast cancer, and whether treatment may mitigate breast cancer risk or progression.
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Affiliation(s)
- Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Veronique Kiak Mien Tan
- Department of Breast Surgery, Singapore General Hospital (SGH), Singapore
- Division of Surgery & Surgical Oncology, National Cancer Centre Singapore
- SingHealth Duke-NUS Breast Centre, SingHealth, Singapore
| | - Anna See
- Department of Otorhinolaryngology–Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
- Department of Otorhinolaryngology–Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
- SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore
- Duke-NUS Medical School, Singapore
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40
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Cheong AJY, Teo YN, Teo YH, Syn NL, Ong HT, Ting AZH, Chia AZQ, Chong EY, Chan MY, Lee CH, Lim AYL, Kong WKF, Wong RCC, Chai P, Sia CH. SGLT inhibitors on weight and body mass: A meta-analysis of 116 randomized-controlled trials. Obesity (Silver Spring) 2022; 30:117-128. [PMID: 34932882 DOI: 10.1002/oby.23331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Multiple trials have demonstrated the metabolic effects of sodium/glucose cotransporter 2 (SGLT2) inhibitors in patients regardless of diabetes status, and recent trials have been conducted on the combined sodium/glucose cotransporter 1 and sodium/glucose cotransporter 2 (SGLT1/SGLT2) inhibitors. Therefore, a meta-analysis was conducted to investigate the weight reduction effects and dose-response relationship of SGLT inhibitors and to assess the relative efficacy of SGLT1/SGLT2 inhibitors. METHODS Four electronic databases (PubMed, Embase, Cochrane, and Scopus) were searched on November 21, 2020, for articles published from January 1, 2000, up to November 21, 2020. RESULTS In total, 116 randomized-controlled trials were included, with a combined cohort of 98,497 patients. Overall, patients had a mean weight reduction of -1.79 kg (95% CI: -1.93 to -1.66, p < 0.001) compared with placebo. This effect was observed across diabetes status, duration of follow-up, various comorbidities, and all SGLT drug types. Mean BMI changes were -0.71 kg/m2 (95% CI: -0.94 to -0.47, p < 0.001) compared with placebo. Canagliflozin, empagliflozin, sotagliflozin, and licogliflozin showed a dose-response relationship for mean weight change. Compared with SGLT2 inhibitors, SGLT1/SGLT2 inhibitors had a significantly larger reduction in weight. CONCLUSIONS SGLT inhibitors demonstrated weight reduction benefits in this meta-analysis. Further studies are needed to clarify their role in weight management.
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Affiliation(s)
- Alex Jia Yang Cheong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - How Ting Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Adriel Z H Ting
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alys Z Q Chia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Elliot Yeung Chong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Mark Y Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Amanda Yuan Ling Lim
- Division of Endocrinology, University Medicine Cluster, National University Health System (NUHS), Singapore
| | - William K F Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Raymond C C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
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See RM, Teo YN, Teo YH, Syn NL, Yip ASY, Leong S, Wee CF, Cheong AJY, Lee CH, Chan MYY, Yeo TC, Wong RCC, Chang P, Hong CC, Chai P, Sia CH. Effects of Sodium-Glucose Cotransporter 2 on Amputation Events: A Systematic Review and Meta-Analysis of Randomized-Controlled Trials. Pharmacology 2021; 107:123-130. [PMID: 34942623 DOI: 10.1159/000520903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/30/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Sodium-glucose cotransporter 2 (SGLT2) inhibitors are increasingly utilized in the treatment of diabetes mellitus as well as therapeutic extra-glycemic effects. However, there are still concerns over complications such as amputation events, given the results from the Canagliflozin Cardiovascular Assessment Study (CANVAS) trial. Hence, we conducted a systematic review and meta-analysis of randomized-controlled trials to investigate the effect of SGLT2 inhibitors on amputation events. METHODS Four electronic databases (PubMed, Embase, Cochrane, and SCOPUS) were searched on November 21, 2020, for articles published from January 1, 2000, up to November 21, 2020, for studies that examined the effect of SGLT2 inhibitors on amputation events. Random-effect pair-wise meta-analysis for hazard ratios and fixed-effect Peto odds ratio meta-analysis were utilized to summarize the studies. RESULTS A total of 15 randomized-controlled trials were included with a combined cohort of 63,716 patients. We demonstrated that there was no significant difference in amputation events across different types of SGLT2 inhibitors, different baseline populations, and different duration of SGLT2 inhibitor use. DISCUSSION/CONCLUSIONS In this meta-analysis, SGLT2 inhibitors were not associated with a significant difference in amputation events.
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Affiliation(s)
- Ray Meng See
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore,
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Alicia Swee Yan Yip
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Shariel Leong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Caitlin Fern Wee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Alex Jia Yang Cheong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Mark Yan-Yee Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Tiong Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Raymond C C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Peter Chang
- Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Choon Chiet Hong
- Division of Foot and Ankle Surgery, Department of Orthopaedic Surgery, National University Hospital, Singapore, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore
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Ong HT, Teo YH, Teo YN, Syn NL, Sia CH. Response to the letter to the editor. J Stroke Cerebrovasc Dis 2021; 31:106271. [PMID: 34955357 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- How Ting Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, Singapore.
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Teo YH, Han R, Leong S, Teo YN, Syn NL, Wee CF, Tan BKJ, Wong RC, Chai P, Kojodjojo P, Kong WK, Lee CH, Sia CH, Yeo TC. Prevalence, types and treatment of bradycardia in obstructive sleep apnea - A systematic review and meta-analysis. Sleep Med 2021; 89:104-113. [PMID: 34971926 DOI: 10.1016/j.sleep.2021.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND The association of obstructive sleep apnea (OSA) with bradycardia is not well-characterized, which may confer significant morbidity and mortality if left untreated. We sought to clarify the prevalence of comorbid OSA and bradycardia, and the effect of continuous positive airway pressure (CPAP) therapy on bradycardia outcomes. METHODS We systematically searched four electronic databases (PubMed, Embase, Cochrane Library, Scopus) for randomized or observational studies reporting the co-prevalence of sleep apnea and bradycardia or evaluated the use of CPAP on the incidence of bradycardias. We used random-effects models in all meta-analyses and evaluated heterogeneity using I2. RESULTS We included 34 articles from 7204 records, comprising 4852 patients. Among patients with OSA, the pooled prevalence of daytime and nocturnal bradycardia were 25% (95% CI: 18.6 to 32.7) and 69.8% (95% CI: 41.7 to 88.2) respectively. Among patients with bradycardia, the pooled prevalence of OSA was 56.8% (95% CI: 21.5 to 86.3). CPAP treatment, compared to those without, did not significantly reduce the risk of daytime (two randomized trials; RR: 0.50; 95% CI: 0.11 to 2.21) or nocturnal bradycardia (one randomized-controlled trial and one cohort study; RR: 0.76; 95% CI: 0.48 to 1.20). CONCLUSIONS This meta-analysis demonstrates a high comorbid disease burden between OSA and bradycardia. Future research should explore the treatment effect of CPAP on bradycardia incidence, as compared to placebo.
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Affiliation(s)
- Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597
| | - Ruobing Han
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597
| | - Shariel Leong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597
| | - Caitlin Fern Wee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597
| | - Benjamin Kye Jyn Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597
| | - Raymond Cc Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Pipin Kojodjojo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - William Kf Kong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228.
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228
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Teo YH, Peh TY, Abdurrahman ABHM, Lee ASI, Chiam M, Fong W, Wijaya L, Krishna LKR. A modified Delphi approach to enhance nurturing of professionalism in postgraduate medical education in Singapore. Singapore Med J 2021. [PMID: 34823327 DOI: 10.11622/smedj.2021224] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Nurturing professional identities instils behavioural standards of physicians, in turn facilitating consistent professional attitudes, practice, and patient care. Identities are socioculturally constructed efforts, thus we must account for the social, cultural, and local healthcare factors that shape physicians' roles, responsibilities and expectations. This study aims to forward a program to nurture professionalism amongst physicians in Singapore. METHODS A 3-phased-evidenced-based-approach was used. First, a systematic scoping review (SSR) was conducted to identify professionalism elements. Second, a questionnaire was created drawing from the SS's findings. Third, a modified Delphi involving local experts identifying socioculturally appropriate elements to nurture professionalism was conducted. RESULTS The 124 included articles in the SSR revealed definitions, knowledge, skills, and approaches to nurturing professionalism. The modified Delphi identified professional traits, virtues, communication, ethical, self-care, teaching and assessment methods, and support mechanisms. CONCLUSION Results formed the basis to a holistic and longitudinal program focused on instilling professional traits and competencies over time through personalised and holistic support of physicians. Findings will be of interest to medical communities in the region and beyond.
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Affiliation(s)
- Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, Singapore
| | - Tan Ying Peh
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, Singapore
- Assisi Hospice, Singapore
- PalC, The Palliative Care Centre for Excellence in Research and Education, Singapore
| | - Ahmad Bin Hanifah Marican Abdurrahman
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, Singapore
| | - Alexia Sze Inn Lee
- Division of Cancer Education, National Cancer Centre Singapore, Singapore
| | - Min Chiam
- Division of Cancer Education, National Cancer Centre Singapore, Singapore
| | - Warren Fong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Rheumatology and Immunology, Singapore General Hospital, Singapore
- Duke-NUS Medical School, Singapore
| | - Limin Wijaya
- Duke-NUS Medical School, Singapore
- Department of Infectious Diseases, Singapore General Hospital, Singapore
| | - Lalit Kumar Radha Krishna
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, Singapore
- PalC, The Palliative Care Centre for Excellence in Research and Education, Singapore
- Division of Cancer Education, National Cancer Centre Singapore, Singapore
- Duke-NUS Medical School, Singapore
- Palliative Care Institute Liverpool, Academic Palliative & End of Life Care Centre, University of Liverpool, United Kingdom
- Centre of Biomedical Ethics, National University of Singapore, Singapore
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Teo YN, Teo YH, Syn NL, Yoong CSY, Cheong AJY, Wee CF, Lim YC, Lee CH, Yeo TC, Chai P, Wong RCC, Lin W, Sia CH. Comparing Sacubitril/Valsartan Against Sodium-Glucose Cotransporter 2 Inhibitors in Heart Failure: A Systematic Review and Network Meta-analysis. Clin Drug Investig 2021; 42:1-16. [PMID: 34797518 DOI: 10.1007/s40261-021-01098-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND OBJECTIVE In recent trials, sodium-glucose cotransporter 2 (SGLT2) inhibitors proved effective as treatment for heart failure. However, the relative efficacy of sacubitril/valsartan against SGLT2 inhibitor in patients with heart failure remains unknown. Hence, we performed a network meta-analysis to compare the effects of sacubitril/valsartan against SGLT2 inhibitors on cardiovascular outcomes in patients with heart failure. METHODS Four electronic databases (PubMed, Embase, Cochrane, SCOPUS) were searched for randomised-controlled trials (RCTs) published from 1st January 2000 to 25th September 2021. Two additional systematic reviews were conducted for RCTs of enalapril and valsartan to establish a common comparator arm. Frequentist network meta-analysis models were utilised to summarise the studies. RESULTS Twenty-five RCTs were included, comprising a combined cohort of 47,275 patients. Network meta-analysis demonstrated that compared to SGLT2 inhibitors, sacubitril/valsartan achieved a larger hazard rate reduction in the composite of heart failure hospitalisation and cardiovascular death (hazard ratio [HR]: 0.86; 95% CI 0.75-0.98), cardiovascular death (HR: 0.78; 95% CI 0.65-0.94), and a larger mean change in systolic blood pressure at 8 or more months (weighted mean difference [WMD]: - 7.08 mmHg; 95% CI - 8.28 to - 5.89). There were no significant differences in treatment effects across heart failure hospitalisation, all-cause mortality, diastolic blood pressure at 12 weeks, and systolic blood pressure at 2-4 months. In patients with heart failure with reduced ejection fraction, sacubitril/valsartan achieved a 20% hazard rate reduction for cardiovascular death compared to SGLT2 inhibitors. CONCLUSIONS In patients with heart failure, sacubitril/valsartan was demonstrated to be superior to SGLT2 inhibitors in the treatment effect for the composite of heart failure hospitalisation and cardiovascular death, cardiovascular death, and long-term blood pressure.
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Affiliation(s)
- Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Celine Shuen Yin Yoong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Alex Jia Yang Cheong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Caitlin Fern Wee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yoke-Ching Lim
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Raymond C C Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Weiqin Lin
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore. .,Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore.
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Tan NKW, Yap DWT, Tan BKJ, Teo YH, Tan EKH, Chan JY, Lee HY, See A, Toh ST. The association of obstructive sleep apnea with melanoma incidence and mortality: a meta-analysis of 5,276,451 patients. Sleep Med 2021; 88:213-220. [PMID: 34794048 DOI: 10.1016/j.sleep.2021.10.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/21/2021] [Accepted: 10/23/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Melanoma is the most aggressive and lethal form of skin cancer. While emerging in-vivo evidence suggests that intermittent hypoxia, a hallmark feature of obstructive sleep apnea (OSA), may induce melanoma tumorigenesis, the epidemiological association between OSA and melanoma has been inconsistent. METHODS We performed a literature search of PubMed, Embase, Scopus and Cochrane Library from inception until 6 June 2021. Two reviewers independently selected randomized trials or observational studies that reported the association of OSA with melanoma incidence or mortality in adults, in comparison to participants with no OSA. Two reviewers independently extracted relevant data and assessed the quality of evidence using the GRADE framework and the Newcastle-Ottawa Scale (NOS). We pooled data using an inverse variance-weighted meta-analysis and ran pre-specified subgrourp analyses. RESULTS The meta-analysis included six studies out of 1897 records, comprising a combined cohort of 5,276,451 patients. All studies were adjusted for covariates, with majority of studies adjusting for age (N=5) and sex (N = 4). Compared to those without OSA, patients with OSA had 71% higher pooled hazards of melanoma (HR = 1.71; 95% CI: 1.08-2.69, I2 = 99%). Subgroup analyses for studies with (1) median follow-up duration of at least five years, (2) prospective study design, (3) adjustment for obesity yielded HRs of 1.88 (95%CI:1.32-2.67, N = 5), 1.11 (95%CI:0.77-1.60, N = 2) and 1.52 (95%CI:0.75-3.08, N = 3) respectively. One study investigating the relationship between OSA and melanoma mortality detected no association. There were insufficient studies to assess publication bias. CONCLUSIONS Meta-analysis of mainly retrospective observational studies, with significant heterogeneity, suggests increased melanoma incidence in OSA patients. Future studies should prospectively explore the differential risk of melanoma for varying OSA severity, and whether timely OSA treatment may mitigate this risk.
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Affiliation(s)
- Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | | | - Jason Yongsheng Chan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Duke-NUS Medical School, Singapore
| | - Haur Yueh Lee
- Department of Dermatology, Singapore General Hospital, Singapore; Duke-NUS Medical School, Singapore
| | - Anna See
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore; Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital (SGH), Singapore; SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore; Duke-NUS Medical School, Singapore.
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Ong HT, Teo YH, Teo YN, Syn NL, Wee CF, Leong S, Yip ASY, See RM, Ting AZH, Chia AZ, Cheong AJY, Tan BYQ, Ho JSY, Yeo LLL, Leow AST, Yeo TC, Wong RC, Chai P, Kojodjojo P, Sia CH. Effects of Sodium/Glucose Cotransporter Inhibitors on Atrial Fibrillation and Stroke: A Meta-Analysis. J Stroke Cerebrovasc Dis 2021; 31:106159. [PMID: 34689051 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106159] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/18/2021] [Accepted: 10/01/2021] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES Recent clinical trials have shown the potential of sodium glucose cotransporter (SGLT) 2 inhibitors to reduce the risk of atrial fibrillation but not stroke. We conducted a systematic review and meta-analysis to clarify if SGLT2 or combined SGLT1/2 inhibitors affect the risk of atrial fibrillation and stroke in patients regardless of diabetic status. MATERIALS AND METHODS Four electronic databases were searched on 21st November 2020 for studies evaluating outcomes of stroke and atrial fibrillation with SGLT2 or combined SGLT1/2 inhibitors in both diabetic and non-diabetic patients. Both random and fixed effect, pair-wise meta-analysis models were used to summarize the results of the studies. RESULTS A total of 13 placebo-controlled, randomized-controlled trials were included. Eight trials comprising 35,702 patients were included in the analysis of atrial fibrillation outcomes and eight trials comprising 47,910 patients were included in the analysis of stroke outcomes. Patients on SGLT inhibitors, particularly SGLT2 inhibitors, had lower odds of atrial fibrillation (Peto odds ratio [95% confidence interval] = 0.76 [0.63-0.92]) compared to placebo. This effect remained significant with a follow-up duration longer than 1 year, in studies utilizing dapagliflozin, patients with type 2 diabetes mellitus, and patients with cardiovascular disease. No difference was observed in the odds of atrial fibrillation in patients with baseline heart failure. No effect was seen on the risk of stroke in patients taking SGLT inhibitors. CONCLUSIONS SGLT2 inhibitors significantly reduced the odds of atrial fibrillation in diabetic patients. However, SGLT inhibitors did not significantly affect the risk of stroke.
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Affiliation(s)
- How Ting Ong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas Lx Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Caitlin Fern Wee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shariel Leong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alicia Swee Yan Yip
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ray Meng See
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Adriel Zhi Hen Ting
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alys Zq Chia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alex Jia Yang Cheong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Benjamin Yong-Qiang Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, University Medicine Cluster, National University Health System, Singapore
| | - Jamie Sin-Ying Ho
- Academic Foundation Programme, North Middlesex University Hospital NHS Trust, United Kingdom
| | - Leonard Leong-Litt Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Division of Neurology, University Medicine Cluster, National University Health System, Singapore
| | - Aloysius Sheng-Ting Leow
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, 119228, Singapore
| | - Raymond Cc Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, 119228, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, 119228, Singapore
| | - Pipin Kojodjojo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, 119228, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, 119228, Singapore.
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Teo YH, Tam WW, Koo CY, Aung AT, Sia CH, Wong RCC, Kong W, Poh KK, Kofidis T, Kojodjojo P, Lee CH. Sleep apnea and recurrent heart failure hospitalizations after coronary artery bypass grafting. J Clin Sleep Med 2021; 17:2399-2407. [PMID: 34216202 DOI: 10.5664/jcsm.9442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Sleep apnea is prevalent in patients undergoing coronary artery bypass grafting (CABG). We investigated the relationship between sleep apnea and recurrent heart failure hospitalizations in patient undergoing non-urgent CABG. METHODS Between November 2013 and December 2018, 1007 patients completed a sleep study prior to CABG and were followed up until April 2020. Recurrent heart failure hospitalizations were analyzed by Poisson, negative binomial, Andersen-Gill, and joint frailty models, with partial and full adjustment for covariates. RESULTS At an average follow-up of 3.3 years, the number of patients with 0, 1, or ≥2 heart failure hospitalizations were 908 (90.2%), 62 (6.2%), and 37 (3.7%), respectively. The total number of heart failure hospitalizations was 179, comprising 62 (35%) first and 117 (65%) repeat events. The numbers of heart failure hospitalizations for the sleep apnea (n = 513, 50.9%) and non-sleep apnea groups were 127 and 52, respectively. Negative binomial regression demonstrated that sleep apnea was associated with recurrent heart failure hospitalizations (fully adjusted rate ratio, 1.71; 95% confidence interval [CI], 1.12-2.62; p = 0.013). Similar results were found in Poisson (1.63; 95%CI, 1.15-2.31; p = 0.006), Andersen-Gill (1.66; 95% CI, 1.01-2.75; p = 0.047), and joint frailty models (1.72; 95% CI, 1.00-3.01; p = 0.056). CONCLUSIONS In patients after CABG, repeat events accounted for two-thirds of heart failure hospitalizations. Sleep apnea was independently associated with recurrent heart failure hospitalizations.
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Affiliation(s)
- Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Wilson W Tam
- Alice Lee Centre for Nursing Studies, National University of Singapore, Singapore
| | - Chieh-Yang Koo
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Aye-Thandar Aung
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Ching-Hui Sia
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Raymond C C Wong
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - William Kong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Kian-Keong Poh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Theodoros Kofidis
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Department of Cardiac, Thoracic and Vascular Surgery, National University Heart Centre, Singapore.,Cardiovascular Research Institute, National University of Singapore, Singapore
| | - Pipin Kojodjojo
- Alice Lee Centre for Nursing Studies, National University of Singapore, Singapore.,Division of Cardiology, Department of Medicine, Ng Teng Fong General Hospital, Singapore
| | - Chi-Hang Lee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Alice Lee Centre for Nursing Studies, National University of Singapore, Singapore.,Cardiovascular Research Institute, National University of Singapore, Singapore
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49
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Teo YH, Naidu G, Tay ELW. Invasive monitoring and dosing strategy to mitigate risks of general anaesthesia in a patient with connective tissue disease and pulmonary arterial hypertension. QJM 2021; 114:206-208. [PMID: 32706889 DOI: 10.1093/qjmed/hcaa230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 07/14/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y H Teo
- National University of Singapore, Yong Loo Lin School of Medicine, 10 Medical Drive, Singapore 117597, Singapore
| | - G Naidu
- Department of Orthopaedics, Raffles Hospital, 585 North Bridge Road, Singapore 188770, Singapore
| | - E L-W Tay
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore 119228, Singapore
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50
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Teo YN, Teo YH, Syn NL, Goh MW, Yoong CSY, Lee CH, Chan MYY, Chai P, Yeo TC, Sia CH. Effects of Colchicine on Cardiovascular Outcomes in Patients with Coronary Artery Disease: A Systematic Review and One-Stage and Two-Stage Meta-Analysis of Randomized-Controlled Trials. High Blood Press Cardiovasc Prev 2021; 28:343-354. [PMID: 34003455 DOI: 10.1007/s40292-021-00460-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 05/12/2021] [Indexed: 12/17/2022] Open
Abstract
AIM Colchicine has received emerging interest due to its cardiovascular benefits in patients with coronary artery disease (CAD). We conducted a one-stage meta-analysis of reconstructed individual patient data (IPD) from randomized-controlled trials to summarize the effects of colchicine on cardiovascular outcomes in patients with CAD. METHODS Four databases (PubMed, Embase, Cochrane, SCOPUS) were searched for articles published from inception to 30th September 2020, examining the effect of colchicine on cardiovascular outcomes in patients with CAD, yielding 10 randomized-controlled trials with a combined cohort of 12,781 patients. IPD was reconstructed from Kaplan-Meier curves published in 3 studies and analysed using the shared-frailty Cox model. Aggregate data meta-analysis of all 10 studies was performed for outcomes unsuitable for IPD reconstruction. RESULTS In patients receiving colchicine compared to placebo, one-stage meta-analysis demonstrated a hazard ratio of 0.70 (95% CI 0.61-0.80) for the composite outcome of cardiovascular death, non-fatal myocardial infarction, non-fatal stroke, and urgent hospitalization for angina requiring coronary revascularization. Aggregate data meta-analysis demonstrated a significant reduction in hazard rate for stroke (HR 0.45; 95% CI 0.27-0.75) and urgent revascularization (HR 0.59; 95% CI 0.38-0.91); and a relative risk reduction for myocardial infarction (RR 0.72; 95% CI of 0.52-1.00) and post-operative atrial fibrillation (RR 0.64; 95% CI 0.48-0.86). CONCLUSION Given the significant benefits of colchicine demonstrated on IPD, and its consistent benefits when analyzed using aggregate data meta-analysis, we propose that colchicine may be considered as an additional pharmacological adjunct to the first line therapy for patients with coronary artery disease.
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Affiliation(s)
- Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nicholas L Syn
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ming Wei Goh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Celine Shuen Yin Yoong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chi-Hang Lee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Mark Yan-Yee Chan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Ping Chai
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Tiong-Cheng Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Department of Cardiology, National University Heart Centre Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 9, Singapore, 119228, Singapore.
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