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Xu J, Tang W, Song L, Huang Y, Xiao L, Cheng F, Guan Q, Xu M, Ma C, Chen J, Ke J. Increased indexed proximal aortic diameter is a predictor of poor prognosis in maintenance hemodialysis patients. Ren Fail 2024; 46:2355352. [PMID: 38785291 PMCID: PMC11132612 DOI: 10.1080/0886022x.2024.2355352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
Background: Recent studies have shown that the baseline values of absolute aortic root diameter (ARD) and indexed diameter are associated with all-cause mortality and cardiovascular events in the general population, even in the absence of aneurysmal aortic disease. However, there is limited available data on the association between ARD and prognosis in end-stage renal disease (ESRD) patients receiving maintenance hemodialysis (MHD). Accordingly, the purpose of this study is to investigate the predictive value of ARD for all-cause mortality and cardiovascular events in this specific population.Methods: ARD was measured by echocardiography at the level of the sinuses of Valsalva at end diastole and indexed to body surface area (BSA). The primary endpoint was all-cause mortality. The secondary endpoint was major adverse cardiovascular events (MACE), including cardiovascular mortality, myocardial infarction and stroke. Cox proportional hazards models were conducted to evaluate the association between baseline ARD/BSA and clinical outcomes.Results: A total of 391 patients were included in this study. The primary endpoint occurred in 95 (24.3%) patients while the secondary endpoint occurred in 71 (18.2%) patients. Multivariate Cox regression analysis showed that ARD/BSA was an independent prognostic factor for all-cause mortality (HR, per 1-SD increase, 1.403; 95% CI, 1.118-1.761; p = 0.003) as well as MACE (HR, per 1-SD increase, 1.356; 95% CI, 1.037-1.772; p = 0.026).Conclusions: Our results show that ARD/BSA is predictive of all-cause mortality and MACE in MHD patients with ESRD and support the view that assessment of ARD/BSA may refine risk stratification and preventive strategies in this population.
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Affiliation(s)
- Junwei Xu
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Wenyi Tang
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Lizheng Song
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Yuxi Huang
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Li Xiao
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Fangyuan Cheng
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Qianglin Guan
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Mei Xu
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Chuoxin Ma
- Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science, BNU-HKBU United International College, China
| | - Jian Chen
- Department of Cardiovascular Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
- Center for Interventional Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, China
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Jianting Ke
- Department of Nephrology, Fifth Affiliated Hospital of Sun Yat-sen University, China
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Shanmuganathan G, Agrawal DK. Diabetes and Abdominal Aortic Aneurysm: Is the Protective Effect on AAA Due to Antidiabetic Medications Alone, Due to the Disease Alone, or Both? ARCHIVES OF INTERNAL MEDICINE RESEARCH 2024; 7:104-113. [PMID: 38846325 PMCID: PMC11156236 DOI: 10.26502/aimr.0169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
Diabetes is a metabolic disease that may result in multiple microvascular and macrovascular diseases. Interestingly, many studies have demonstrated the inverse relationship between diabetes and the development and expansion of abdominal aortic aneurysm (AAA). One hypothesis is that the aortic wall stiffness resulting from hyperglycemia and advanced glycation end products could delay the development and growth of AAA. Other studies have proposed that the concurrent use of antidiabetic medications which promote anti-inflammatory cytokines while hindering pro-inflammatory cytokines may potentially be the reason for this protective effect of diabetes on AAA. Contrastingly, the presence of diabetes has been found to have a negative effect on the outcome of AAA following its repair which may be due to elevated blood glucose negatively affecting the healing process. The current literature has also demonstrated the negative impact of the use of fluoroquinolones on AAA. This comprehensive review critically reviewed and summarized the role of diabetes, anti-diabetes medications and fluoroquinolones on AAA, and on the effect of diabetes and certain anti-diabetes medications on outcomes following its repair.
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Affiliation(s)
- Gaithrri Shanmuganathan
- Department of Translational Research College of Osteopathic Medicine of the Pacific Western University of Health Sciences Pomona, California 91766
| | - Devendra K Agrawal
- Department of Translational Research College of Osteopathic Medicine of the Pacific Western University of Health Sciences Pomona, California 91766
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Jia Y, Li Y, Yu J, Jiang W, Liu Y, Zeng R, Wan Z, Liao X, Li D, Zhao Q. Association between metabolic dysfunction-associated fatty liver disease and abdominal aortic aneurysm. Nutr Metab Cardiovasc Dis 2024; 34:953-962. [PMID: 38161123 DOI: 10.1016/j.numecd.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/02/2023] [Accepted: 11/11/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND AND AIMS Abdominal aortic aneurysm (AAA) is the second most common aortic pathological manifestation. Metabolic dysfunction-associated fatty liver disease (MAFLD) has a wide impact on the cardiovascular system and may be a risk factor for AAA. The aim of this study was to investigate whether MAFLD is associated with the risk of AAA. METHODS AND RESULTS We used data from the prospective UK Biobank cohort study. MAFLD is defined as hepatic steatosis plus metabolic abnormality, type 2 diabetes, or overweight/obesity. AAA is collected by ICD-10 code. Cox regression was established to analyze the association between MAFLD and AAA. A total of 370203 participants were included; the average age of the participants was 56.7 ± 8.0 years, and 134649 (36.4 %) were diagnosed with MAFLD. During the 12.5 years of follow-up, 1561 (0.4 %) participants developed AAA. After fully adjusting for confounding factors, individuals with MAFLD had a significantly increased risk of AAA (HR 1.521, 95 % CI 1.351-1.712, p < 0.001). Importantly, the risk of AAA increases with the severity of MAFLD as assessed by fibrosis scores. These associations were consistent according to sex, weight, and alcohol consumption but weaker in elderly or diabetics (P for interaction <0.05). The association between the MAFLD phenotype and AAA was independent of the polygenic risk score. Additionally, MAFLD was not associated with thoracic aortic aneurysm or aortic dissection events. CONCLUSIONS There was a significant relationship between MAFLD and AAA. These findings strongly recommend early prevention of AAA by intervening in MAFLD.
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Affiliation(s)
- Yu Jia
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yizhou Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jing Yu
- Department of Emergency Medicine, Disaster Medical Center, West China Hospital, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Wenli Jiang
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Liu
- Department of Emergency Medicine, Disaster Medical Center, West China Hospital, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Rui Zeng
- Department of Cardiology, West China Hospital, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Zhi Wan
- Department of Emergency Medicine, Disaster Medical Center, West China Hospital, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoyang Liao
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Dongze Li
- Department of Emergency Medicine, Disaster Medical Center, West China Hospital, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China.
| | - Qian Zhao
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China.
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Golledge J, Thanigaimani S, Powell JT, Tsao PS. Pathogenesis and management of abdominal aortic aneurysm. Eur Heart J 2023:ehad386. [PMID: 37387260 PMCID: PMC10393073 DOI: 10.1093/eurheartj/ehad386] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/16/2023] [Accepted: 05/29/2023] [Indexed: 07/01/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) causes ∼170 000 deaths annually worldwide. Most guidelines recommend asymptomatic small AAAs (30 to <50 mm in women; 30 to <55 mm in men) are monitored by imaging and large asymptomatic, symptomatic, and ruptured AAAs are considered for surgical repair. Advances in AAA repair techniques have occurred, but a remaining priority is therapies to limit AAA growth and rupture. This review outlines research on AAA pathogenesis and therapies to limit AAA growth. Genome-wide association studies have identified novel drug targets, e.g. interleukin-6 blockade. Mendelian randomization analyses suggest that treatments to reduce low-density lipoprotein cholesterol such as proprotein convertase subtilisin/kexin type 9 inhibitors and smoking reduction or cessation are also treatment targets. Thirteen placebo-controlled randomized trials have tested whether a range of antibiotics, blood pressure-lowering drugs, a mast cell stabilizer, an anti-platelet drug, or fenofibrate slow AAA growth. None of these trials have shown convincing evidence of drug efficacy and have been limited by small sample sizes, limited drug adherence, poor participant retention, and over-optimistic AAA growth reduction targets. Data from some large observational cohorts suggest that blood pressure reduction, particularly by angiotensin-converting enzyme inhibitors, could limit aneurysm rupture, but this has not been evaluated in randomized trials. Some observational studies suggest metformin may limit AAA growth, and this is currently being tested in randomized trials. In conclusion, no drug therapy has been shown to convincingly limit AAA growth in randomized controlled trials. Further large prospective studies on other targets are needed.
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Affiliation(s)
- Jonathan Golledge
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
- Department of Vascular and Endovascular Surgery, Townsville University Hospital, 100 Angus Smith Drive, Douglas, QLD, Australia
| | - Shivshankar Thanigaimani
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, 1 James Cook Drive, Douglas, Townsville, QLD, Australia
| | - Janet T Powell
- Department of Surgery & Cancer, Imperial College London, Fulham Palace Road, London, UK
| | - Phil S Tsao
- Department of Cardiovascular Medicine, Stanford University, 450 Serra Mall, Stanford, CA, USA
- VA Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, USA
- Stanford Cardiovascular Institute, Stanford University, 450 Serra Mall, Stanford, CA, USA
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Kaschina E. Aortic Aneurysm: Finding the Right Target. Biomedicines 2023; 11:biomedicines11051345. [PMID: 37239016 DOI: 10.3390/biomedicines11051345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
This Special Issue of Biomedicines highlights many important scientific findings in aneurysm research [...].
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Affiliation(s)
- Elena Kaschina
- Cardiovascular-Metabolic-Renal (CMR)-Research Center, Institute of Pharmacology, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Charité-Universitätsmedizin Berlin, 10115 Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin,10115 Berlin, Germany
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Lu HS, Sawada H, Daugherty A. Metformin ameliorates established abdominal aortic aneurysms induced by elastase in mice. JVS Vasc Sci 2023; 4:100103. [PMID: 37649472 PMCID: PMC10463245 DOI: 10.1016/j.jvssci.2023.100103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Affiliation(s)
- Hong S Lu
- Saha Cardiovascular Research Center and Saha Aortic Center, Lexington, KY
- Department of Physiology, University of Kentucky, Lexington, KY
| | - Hisashi Sawada
- Saha Cardiovascular Research Center and Saha Aortic Center, Lexington, KY
- Department of Physiology, University of Kentucky, Lexington, KY
| | - Alan Daugherty
- Saha Cardiovascular Research Center and Saha Aortic Center, Lexington, KY
- Department of Physiology, University of Kentucky, Lexington, KY
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Xu B, Li G, Li Y, Deng H, Cabot A, Guo J, Samura M, Zheng X, Chen T, Zhao S, Fujimura N, Dalman RL. Mechanisms and efficacy of metformin-mediated suppression of established experimental abdominal aortic aneurysms. JVS Vasc Sci 2023; 4:100102. [PMID: 37168662 PMCID: PMC10165270 DOI: 10.1016/j.jvssci.2023.100102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/16/2023] [Indexed: 04/03/2023] Open
Abstract
Objective Metformin treatment attenuates experimental abdominal aortic aneurysm (AAA) formation, as well as reduces clinical AAA diameter enlargement in patients with diabetes. The mechanisms of metformin-mediated aneurysm suppression, and its efficacy in suppressing established experimental aneurysms, remain uncertain. Methods Experimental AAAs were created in male C57BL/6J mice via intra-aortic infusion of porcine pancreatic elastase. Metformin alone (250 mg/kg), or metformin combined with the 5' AMP-activated protein kinase (AMPK) antagonist Compound C (10 mg/kg), were administered to respective mouse cohorts daily beginning 4 days following AAA induction. Further AAA cohorts received either the AMPK agonist AICA riboside (500 mg/kg) as positive, or vehicle (saline) as negative, controls. AAA progression in all groups was assessed via serial in vivo ultrasonography and histopathology at sacrifice. Cytokine-producing T cells and myeloid cellularity were determined by flow cytometric analyses. Results Metformin limited established experimental AAA progression at 3 (-85%) and 10 (-68%) days following treatment initiation compared with saline control. Concurrent Compound C treatment reduced this effect by approximately 50%. In metformin-treated mice, reduced AAA progression was associated with relative elastin preservation, smooth muscle cell preservation, and reduced mural leukocyte infiltration and neoangiogenesis compared with vehicle control group. Metformin also resulted in reduced interferon-γ-, but not interleukin-10 or -17, producing splenic T cells in aneurysmal mice. Additionally, metformin therapy increased circulating and splenic inflammatory monocytes (CD11b+Ly-6Chigh), but not neutrophils (CD11b+Ly-6G+), with no effect on respective bone marrow cell populations. Conclusions Metformin treatment suppresses existing experimental AAA progression in part via AMPK agonist activity, limiting interferon-γ-producing T cell differentiation while enhancing circulating and splenic inflammatory monocyte retention.
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Li R, Liu Y, Jiang J. Research advances in drug therapy for abdominal aortic aneurysms over the past five years: An updated narrative review. Int J Cardiol 2023; 372:93-100. [PMID: 36462700 DOI: 10.1016/j.ijcard.2022.11.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/16/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND Abdominal aortic aneurysms (AAA) rupture can lead to patient death. Surgical treatment is currently the optimal treatment for AAA with large diameter (≥50 mm). For AAA with small diameter (30-50 mm), how to administer effective pharmacological treatment to reduce aneurysm expansion rate and rupture risk is the current focus in the field of vascular surgery. There is still no effective drug for the treatment of asymptomatic AAA. METHODS This article searches the PubMed, Web of Science, Embase, and Cochrane databases for clinical studies on the drug treatment of abdominal aortic aneurysms in the past 5 years. The latest progress in the drug treatment of AAA was reviewed, including antibiotics, antihypertensive drugs, antiplatelet drugs, hypoglycemic drugs, hypolipidemic drugs, mast cell inhibitors and corticosteroids. RESULTS 25 studies were included in this narrative review. Among them, metformin revealed therapeutic effect in 2 prospective cohort study and 3 retrospective cohort study. The therapeutic effect of statins was controversial in 3 retrospective cohort study. However, the definite therapeutic effects of antihypertensive agents, antibiotics, mast cell inhibitors, antiplatelet agents and corticosteroids on abdominal aortic aneurysms have not been verified in prospective studies. CONCLUSION Metformin provided a positive effect in reducing expansion rate, rupture risk, and perioperative mortality. The therapeutic effect of statins was controversial, which warrant further validation in prospective cohorts. However, there is still a lack of effective agents for the treatment of AAA based on recent studies.
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Affiliation(s)
- Ruihua Li
- Department of General Surgery, Vascular Surgery, Qilu Hospital of Shandong University, No.107, Road Wen Hua Xi, Jinan, Shandong 250012, China.
| | - Yang Liu
- Department of General Surgery, Vascular Surgery, Qilu Hospital of Shandong University, No.107, Road Wen Hua Xi, Jinan, Shandong 250012, China.
| | - Jianjun Jiang
- Department of General Surgery, Vascular Surgery, Qilu Hospital of Shandong University, No.107, Road Wen Hua Xi, Jinan, Shandong 250012, China.
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Picatoste B, Cerro-Pardo I, Blanco-Colio LM, Martín-Ventura JL. Protection of diabetes in aortic abdominal aneurysm: Are antidiabetics the real effectors? Front Cardiovasc Med 2023; 10:1112430. [PMID: 37034348 PMCID: PMC10076877 DOI: 10.3389/fcvm.2023.1112430] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
Aortic aneurysms, including abdominal aortic aneurysms (AAAs), is the second most prevalent aortic disease and represents an important cause of death worldwide. AAA is a permanent dilation of the aorta on its infrarenal portion, pathologically associated with oxidative stress, proteolysis, vascular smooth muscle cell loss, immune-inflammation, and extracellular matrix remodeling and degradation. Most epidemiological studies have shown a potential protective role of diabetes mellitus (DM) on the prevalence and incidence of AAA. The effect of DM on AAA might be explained mainly by two factors: hyperglycemia [or other DM-related factors such as insulin resistance (IR)] and/or by the effect of prescribed DM drugs, which may have a direct or indirect effect on the formation and progression of AAAs. However, recent studies further support that the protective role of DM in AAA may be attributable to antidiabetic therapies (i.e.: metformin or SGLT-2 inhibitors). This review summarizes current literature on the relationship between DM and the incidence, progression, and rupture of AAAs, and discusses the potential cellular and molecular pathways that may be involved in its vascular effects. Besides, we provide a summary of current antidiabetic therapies which use could be beneficial for AAA.
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Affiliation(s)
- Belén Picatoste
- Laboratory of Vascular Pathology, IIS-Fundación Jiménez Díaz, Madrid, Spain
- Biomedicine Department, Alfonso X El Sabio University, Madrid, Spain
- Correspondence: Belén Picatoste ,
| | - Isabel Cerro-Pardo
- Laboratory of Vascular Pathology, IIS-Fundación Jiménez Díaz, Madrid, Spain
| | - Luis M. Blanco-Colio
- Laboratory of Vascular Pathology, IIS-Fundación Jiménez Díaz, Madrid, Spain
- CIBERCV, Madrid, Spain
| | - Jose L. Martín-Ventura
- Laboratory of Vascular Pathology, IIS-Fundación Jiménez Díaz, Madrid, Spain
- CIBERCV, Madrid, Spain
- Medicine Department, Autonoma University of Madrid, Madrid, Spain
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Cai Z, Li L, Wang H, Yuan S, Yin D, Song W, Dou K. Effect of type 2 diabetes on coronary artery ectasia: smaller lesion diameter and shorter lesion length but similar adverse cardiovascular events. Cardiovasc Diabetol 2022; 21:9. [PMID: 35045850 PMCID: PMC8772080 DOI: 10.1186/s12933-022-01444-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/22/2021] [Indexed: 01/03/2023] Open
Abstract
Background Coronary artery ectasia (CAE) is a rare finding in coronary angiography and associated with poor clinical outcomes. Unlike atherosclerosis, diabetes mellitus (DM) is not commonly associated with CAE. This study aims to investigate the effect of type 2 diabetes mellitus (DM2) on coronary artery ectasia, especially the differences in angiographic characteristics and clinical outcomes. Methods Patients with angiographically confirmed CAE from 2009 to 2015 were included. Quantitative coronary angiography (QCA) was performed to measure the diameter and length of the dilated lesion. The primary endpoint was the maximum diameter and maximum length of the dilated lesion at baseline coronary angiography. The secondary endpoint was 5-year major adverse cardiovascular events (MACE), which was a component of cardiovascular death and nonfatal myocardial infarction (MI). Propensity score weighting (PSW) and propensity score matching (PSM) were used to balance covariates. Kaplan–Meier method and Cox regression were performed to assess the clinical outcomes. Results A total of 1128 patients were included and 258 were combined with DM2. In the DM2 group, the maximum diameter of dilated lesion was significantly lower (5.26 mm vs. 5.47 mm, P = 0.004) and the maximum length of the dilated lesion was significantly shorter (25.20 mm vs. 31.34 mm, P = 0.002). This reduction in dilated lesion diameter (5.26 mm vs. 5.41 mm, P = 0.050 in PSW; 5.26 mm vs. 5.46 mm, P = 0.007 in PSM, respectively) and length (25.17 mm vs. 30.17 mm, P = 0.010 in PSW; 25.20 mm vs. 30.81 mm, P = 0.012 in PSM, respectively) was consistently observed in the propensity score analysis. A total of 27 cardiovascular deaths and 41 myocardial infarctions occurred at 5-year follow-up. Compared with non-DM group, there were similar risks of MACE (6.02% vs. 6.27%; HR 0.96, 95% CI 0.54–1.71, P = 0.894), cardiovascular death (2.05% vs. 2.61%; HR 0.78, 95% CI 0.29–2.05, P = 0.605) and MI (4.07% vs. 3.72%; HR 1.11, 95% CI 0.54–2.26, P = 0.782) in patients with DM2. Consistent result was observed in multivariable regression. Conclusions Compared to non-DM patients, patients with CAE and type 2 diabetes were associated with a smaller diameter and shorter length of dilated vessels, suggesting the important effect of DM2 on the pathophysiological process of CAE. Similar risks of MACE were found during 5-year follow up among diabetic and non-DM patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12933-022-01444-5.
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