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Lee DY, Chang CC, Ko CF, Lee YH, Tsai YL, Chou RH, Chang TY, Guo SM, Huang PH. Artificial intelligence evaluation of coronary computed tomography angiography for coronary stenosis classification and diagnosis. Eur J Clin Invest 2024; 54:e14089. [PMID: 37668089 DOI: 10.1111/eci.14089] [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: 07/09/2023] [Revised: 08/14/2023] [Accepted: 08/29/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Ruling out obstructive coronary artery disease (CAD) using coronary computed tomography angiography (CCTA) is time-consuming and challenging. This study developed a deep learning (DL) model to assist in detecting obstructive CAD on CCTA to streamline workflows. METHODS In total, 2929 DICOM files and 7945 labels were extracted from curved planar reformatted CCTA images. A modified Inception V3 model was adopted. To validate the artificial intelligence (AI) model, two cardiologists labelled and adjudicated the classification of coronary stenosis on CCTA. The model was trained to differentiate the coronary artery into binary stenosis classifications <50% and ≥50% stenosis. Using the quantitative coronary angiography (QCA) consensus results as a reference standard, the performance of the AI model and CCTA radiology readers was compared by calculating Cohen's kappa coefficients at patient and vessel levels. The net reclassification index was used to evaluate the net benefit of the DL model. RESULTS The diagnostic accuracy of the AI model was 92.3% and 88.4% at the patient and vessel levels, respectively. Compared with CCTA radiology readers, the AI model had a better agreement for binary stenosis classification at both patient and vessel levels (Cohen kappa coefficient: .79 vs. .39 and .77 vs. .40, p < .0001). The AI model also exhibited significantly improved model discrimination and reclassification (Net reclassification index = .350; Z = 4.194; p < .001). CONCLUSIONS The developed AI model identified obstructive CAD, and the model results correlated well with QCA results. Incorporating the model into the reporting system of CCTA may improve workflows.
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Affiliation(s)
- Dan-Ying Lee
- Department of Internal Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Chun-Chin Chang
- Department of Internal Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Chieh-Fu Ko
- Institute of Medical Informatics, National Cheng Kung University, Tainan City, Taiwan
| | - Yin-Hao Lee
- Department of Internal Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Department of Medicine, Division of Cardiology, Taipei City Hospital, Taipei City, Taiwan
| | - Yi-Lin Tsai
- Department of Internal Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Ruey-Hsing Chou
- Department of Internal Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Ting-Yung Chang
- Department of Internal Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Shu-Mei Guo
- Institute of Medical Informatics, National Cheng Kung University, Tainan City, Taiwan
| | - Po-Hsun Huang
- Department of Internal Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei City, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei City, Taiwan
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei City, Taiwan
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Kim SR, Kim MN, Cho DH, Kim HD, Bae SA, Kim HL, Kim MA, Hong KS, Shim WJ, Park SM. Sex differences of sequential changes in coronary blood flow and microvascular function in patients with suspected angina. Clin Res Cardiol 2023:10.1007/s00392-023-02358-2. [PMID: 38112743 DOI: 10.1007/s00392-023-02358-2] [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: 05/18/2023] [Accepted: 12/04/2023] [Indexed: 12/21/2023]
Abstract
AIMS This study evaluated the sex differences of sequential changes in coronary blood flows and microvascular function in patients with suspected angina but with no obstructed coronary arteries. METHODS A total of 202 consecutive patients who experienced chest pain but had no significant coronary artery stenosis and who underwent adenosine stress echocardiography were included in the study. Coronary blood flow (CBF) velocities were measured at 1, 2, and 3 min after adenosine infusion. RESULTS The mean age was 61 years, and 138 (68%) were women. Approximately 40% of patients had coronary microvascular dysfunction (CMD, coronary flow velocity reserve < 2.3), with women exhibiting higher CMD prevalence. The left ventricular (LV) mass index was similar between men and women, while women exhibited higher baseline rate pressure products (RPP). At baseline, coronary blood flow velocities were similar between the sexes. However, CBF velocities in women gradually increased during the examination; and in men, the increase was abrupt and steep during the early stages of examination (p = 0.015 for interaction between time and sex), even with similar RPP in stress. Coronary flow velocity reserve was steadily lower in women compared to men (1 min, 2.09 ± 0.86 vs 2.44 ± 0.87; 2 min, 2.39 ± 0.72 vs 2.63 ± 0.85; 3 min, 2.45 ± 0.70 vs 2.68 ± 0.73). CONCLUSIONS In patients with suspected angina but with no obstructed coronary arteries, CMD was especially prevalent among women. Women exhibited higher oxygen consumption, while exhibiting slower and gradual increases in CBF velocities. Conversely, men exhibited faster and steeper increases in CBF velocities even with similar RPP in stress.
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Affiliation(s)
- So Ree Kim
- Division of Cardiology, Korea University Anam Hospital, 73 Goryeodae-ro Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Mi-Na Kim
- Division of Cardiology, Korea University Anam Hospital, 73 Goryeodae-ro Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Dong-Hyuk Cho
- Division of Cardiology, Korea University Anam Hospital, 73 Goryeodae-ro Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Hee-Dong Kim
- Division of Cardiology, Soonchunhyang University Hospital, 31, Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do, Republic of Korea
| | - Sung A Bae
- Division of Cardiology, Yongin Severance Hospital, 363, Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Hack-Lyoung Kim
- Cardiovascular Center, Seoul National University Boramae Hospital, 20, Boramae-ro 5-gil, Dongjak-gu, Seoul, Republic of Korea
| | - Myung-A Kim
- Cardiovascular Center, Seoul National University Boramae Hospital, 20, Boramae-ro 5-gil, Dongjak-gu, Seoul, Republic of Korea
| | - Kyung-Soon Hong
- Division of Cardiology, Hallym University Chuncheon Sacred Heart Hospital, 77, Sakju-ro, Chuncheon-si, Gangwon-do, Republic of Korea
| | - Wan Joo Shim
- Division of Cardiology, Korea University Anam Hospital, 73 Goryeodae-ro Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Seong-Mi Park
- Division of Cardiology, Korea University Anam Hospital, 73 Goryeodae-ro Seongbuk-gu, Seoul, 02841, Republic of Korea.
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Goel H, Carey M, Elshaikh A, Krinock M, Goyal D, Nadar SK. Cardioprotective and Antianginal Efficacy of Nicorandil: A Comprehensive Review. J Cardiovasc Pharmacol 2023; 82:69-85. [PMID: 37256547 DOI: 10.1097/fjc.0000000000001436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 04/15/2023] [Indexed: 06/01/2023]
Abstract
ABSTRACT Angina pectoris remains a significant burden despite advances in medical therapy and coronary revascularization. Many patients (up to 30%) with angina have normal coronary arteries, with coronary microvascular disease and/or coronary artery vasospasm being major drivers of the myocardial demand-supply mismatch. Even among patients revascularized for symptomatic epicardial coronary stenosis, recurrent angina remains highly prevalent. Medical therapy for angina currently centers around 2 disparate goals, viz secondary prevention of hard clinical outcomes and symptom control. Vasodilators, such as nitrates, have been first-line antianginal agents for decades, along with beta-blockers and calcium channel blockers. However, efficacy in symptoms control is heterogenous, depending on underlying mechanism(s) of angina in an individual patient, often necessitating multiple agents. Nicorandil (NCO) is an antianginal agent first discovered in the late 1970s with a uniquely dual mechanism of action. Like a typical nitrate, it mediates medium-large vessel vasodilation through nitric oxide. In addition, NCO has adenosine triphosphate (ATP)-dependent potassium channel agonist activity (K ATP ), mediating microvascular dilatation. Hence, it has proven effective in both coronary artery vasospasm and coronary microvascular disease, typically challenging patient populations. Moreover, emerging evidence suggests that cardiomyocyte protection against ischemia through ischemic preconditioning may be mediated through K ATP agonism. Finally, there is now fairly firm evidence in favor of NCO in terms of hard event reduction among patients with stable coronary artery disease, following myocardial infarction, and perhaps even among patients with congestive heart failure. This review aims to summarize the mechanism of action of NCO, its efficacy as an antianginal, and current evidence behind its impact on hard outcomes. Finally, we review other cardiac and emerging noncardiac indications for NCO use.
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Affiliation(s)
- Harsh Goel
- Department of Medicine, St Luke's University Hospital, Bethlehem, PA
- Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Matthew Carey
- Department of Medicine, St Luke's University Hospital, Bethlehem, PA
| | | | - Matthew Krinock
- Department of Medicine, St Luke's University Hospital, Bethlehem, PA
- ‡Department of Cardiology, St Luke's University Hospital, Bethlehem, PA
| | - Deepak Goyal
- Department of Cardiology, Worcestershire Acute Hospitals NHS Trust, Worcester, UK; and
| | - Sunil K Nadar
- Department of Cardiology, Dudley Group of Hospitals NHS Trust, Dudley, UK
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Broyles D, Philibert R. Precision epigenetics provides a scalable pathway for improving coronary heart disease care globally. Epigenomics 2023; 15:805-818. [PMID: 37702023 DOI: 10.2217/epi-2023-0233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023] Open
Abstract
Coronary heart disease (CHD) is the world's leading cause of death. Up to 90% of all CHD deaths are preventable, but effective prevention of this mortality requires more scalable, precise methods for assessing CHD status and monitoring treatment response. Unfortunately, current diagnostic methods have barriers to implementation, particularly in rural areas and lower-income countries. This gap may be bridged by highly scalable advances in DNA methylation testing methods and artificial intelligence. Herein, we review prior studies of CHD related to methylation alone and in combination with other biovariables. We compare these new methods with established methods for diagnosing CHD. Finally, we outline pathways through which methylation-based testing methods may allow the democratization of improved methods for assessing CHD globally.
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Affiliation(s)
- Damon Broyles
- Mercy Technology Services, St. Louis, MO 63127, USA
- Mercy Precision Medicine, Chesterfield, MO 63017, USA
| | - Robert Philibert
- Department of Psychiatry, University of Iowa, Iowa City, IA 52242, USA
- Cardio Diagnostics Inc, Chicago, IL 60642, USA
- Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA
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Zhang J, Guan L, Li X, Yang Y, Ma Y, Mu Y. Value of Myocardial Contrast Echocardiography in Detecting Coronary Microcirculatory Dysfunction in Ischemia With Non-obstructive Coronary Artery Disease. ULTRASOUND IN MEDICINE & BIOLOGY 2023:S0301-5629(23)00172-2. [PMID: 37344240 DOI: 10.1016/j.ultrasmedbio.2023.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/25/2023] [Accepted: 05/23/2023] [Indexed: 06/23/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the value of myocardial contrast echocardiography (MCE) in detecting coronary microcirculation function dysfunction in ischemia with non-obstructive coronary artery (INOCA) disease. METHODS Twenty-one patients with a clinical diagnosis of INOCA were admitted to the First Affiliated Hospital of Xinjiang Medical University because of chest pain. All participants underwent MCE and [18F]fluorodeoxyglucose (FDG) positron emission tomography/computed tomography myocardial metabolic imaging. With the results of FDG PET taken as the gold standard, all myocardial segments were divided into a normal control group and a coronary artery microcirculation dysfunction (CMCD) group. We used MCE to measure myocardial perfusion parameters, including the ascending slope (β), time to peak (TTP), A and A × β. The receiver operating characteristic (ROC) curves of β, TTP, A and A × β were calculated to evaluate the diagnostic value of MCE for CMCD. RESULTS A total of 122 and 218 segments were investigated in the CMCD and control groups, respectively. On the basis of the statistical analysis of the MCE parameters of the two groups, the myocardial perfusion parameters β, A and A × β of all segments in the CMCD group decreased, and the TTP in the basal segment of the CMCD group was longer than that of the normal control group (all p values <0.05). On the basis of analysis of the ROC curve, β had the highest diagnostic efficiency in the middle segment. CONCLUSION This study found that MCE is valuable in the diagnosis of non-obstructive coronary artery complicated by CMCD.
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Affiliation(s)
- Jianqiang Zhang
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China; Xinjiang Key Laboratory of Ultrasound Medicine, Urumqi, Xinjiang, China
| | - Lina Guan
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China; Xinjiang Key Laboratory of Ultrasound Medicine, Urumqi, Xinjiang, China
| | - Xiaohong Li
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yuanyuan Yang
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China; Xinjiang Key Laboratory of Ultrasound Medicine, Urumqi, Xinjiang, China
| | - Yuexia Ma
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China; Xinjiang Key Laboratory of Ultrasound Medicine, Urumqi, Xinjiang, China
| | - Yuming Mu
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China; Xinjiang Key Laboratory of Ultrasound Medicine, Urumqi, Xinjiang, China.
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Peerwani G, Aijaz S, Sheikh S, Virani SS, Pathan A. Predictors of Non-Obstructive Coronary Artery Disease in Patients Undergoing Elective Coronary Angiography. Glob Heart 2023; 18:26. [PMID: 37187606 PMCID: PMC10178568 DOI: 10.5334/gh.1204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/12/2023] [Indexed: 05/17/2023] Open
Abstract
Background Appropriate patient selection for coronary angiography (CAG) is essential to minimize the unnecessary risk of morbidities and exposure to radiation and iodinated contrast. This becomes even more relevant in low-to-middle-income settings where most health expenditures are out-of-pocket due to lack of medical insurance. We determined predictors of non-obstructive coronaries (NOC) in patients undergoing elective CAG. Methods CathPCI Registry®, single-center data was extracted for 25,472 patients who had CAG over an eight year period. After excluding patients for compelling conditions or known CAD, 2,984 (11.7%) patients were included in this study. Non-Obstructive Coronaries was defined as <50% left main coronary artery and major epicardial vessel stenosis. Multiple Cox proportional algorithm was employed to report prevalence ratios (PR) of predictors of NOC along with 95% confidence interval. Results Mean age of patients was 57.9 ± 9.7 years, 23.5% were women. Preprocedural non-invasive testing (NIT) was performed in 46% of the patients; of which 95.5% reported to be positive but only 67.3% were stratified as high risk. Of 2,984 patients undergoing elective CAG, 711 (24%) had NOC. Predictors of NOC included younger age <50 years (PR: 1.3, CI: 1.0-1.5), Women (1.8, 1.5-2.1), low (1.9, 1.5-2.5) and intermediate risk stratification (1.3, 1.0-1.6) on Modified Framingham Risk Score and inappropriate (2.7, 1.6-4.3) and uncertain (1.3, 1.1-1.6) classification of CAG on Appropriate Use Criteria. Patients with heart failure as an indication of CAG (1.7, 1.4-2.0) and No NIT or positive low risk NIT (1.8, 1.5-2.2) were more likely to have NOC. Conclusion Approximately one out of four patients undergoing elective CAG had NOC. Yield of diagnostic catheterization can be improved by adjudicating NIT especially in younger patients, women, patients with heart failure as an indication of CAG, patients classified as inappropriate on Appropriate Use Criteria and patients categorized as low or intermediate risk on MFRS.
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Affiliation(s)
- Ghazal Peerwani
- Department of Clinical Research Cardiology, Tabba Heart Institute, Karachi, Pakistan
| | - Saba Aijaz
- Department of Clinical Research Cardiology, Tabba Heart Institute, Karachi, Pakistan
- Department of Clinical Cardiology, Tabba Heart Institute, Karachi, Pakistan
| | - Sana Sheikh
- Department of Clinical Research Cardiology, Tabba Heart Institute, Karachi, Pakistan
| | - Salim S. Virani
- The Aga Khan University, Karachi, Pakistan, Texas Heart Institute, Houston, TX, USA
| | - Asad Pathan
- Department of Clinical Cardiology, Tabba Heart Institute, Karachi, Pakistan
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Liu Y, Chen S, Liu S, Sun G, Sun Z, Liu H. Association of endothelial glycocalyx shedding and coronary microcirculation assessed by an angiography-derived index of microcirculatory resistance in patients with suspected coronary artery disease. Front Cardiovasc Med 2022; 9:950102. [PMID: 36158787 PMCID: PMC9493183 DOI: 10.3389/fcvm.2022.950102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 08/23/2022] [Indexed: 11/30/2022] Open
Abstract
Background The endothelial glycocalyx (EG) is essential for maintaining microvascular homeostasis. However, the relationship between the EG and coronary microcirculation remains to be elucidated. One of the main components of EG is syndecan-1, and its shedding has been claimed to represent the state of the EG. In this study, we aimed to analyze the association between syndecan-1 and the coronary microcirculation. Methods We enrolled suspected coronary artery disease (CAD) patients who consecutively underwent coronary angiography (CAG) and angiography-based analysis of physiological indices in the left anterior descending artery (LAD). Serum syndecan-1 was measured by enzyme-linked immunosorbent assay (ELISA). The coronary microcirculation was evaluated by the presence of coronary microvascular dysfunction (CMD) and an impaired microvascular vasodilatory capacity (IMVC), which were quantified by an angiography-derived index of microcirculatory resistance (IMRangio) in the maximum hyperemic state (H-IMRangio) induced by adenosine triphosphate and the ratio (RRRangio) of IMRangio in the non-hyperemic phase to H-IMRangio, respectively. Results A total of 528 patients were enrolled in this study. There was no difference in epicardial coronary complexity between patients with high syndecan-1 (HSG) and low syndecan-1 (LSG) levels grouped by the median concentration of syndecan-1 (SYNTAX: 7[3, 10] vs. 9[4, 12], P = 0.15). However, H-IMRangio and RRRangio were different between the LSG and HSG groups (H-IMRangio: 23.64 ± 6.28 vs. 27.67 ± 5.59, P < 0.01; RRRangio: 1.74[1.46, 2.08] vs. 1.55[1.34, 1.72], P < 0.01). Patients with CMD (H-IMRangio > 25) and patients with IMVC (RRRangio below the median value) both had higher syndecan-1 levels (CMD: 86.44 ± 54.15 vs. 55.2 ± 43.72, P < 0.01; IMVC: 83.86 ± 55.41 vs. 59.68 ± 45.06, P < 0.01). After adjustment for confounding factors, HSG remained associated with the presence of CMD and IMVC (CMD: odds ratio [OR]: 2.769, P < 0.01; IMVC: OR: 1.908, P < 0.01). Conclusion High levels of syndecan-1 are independently associated with the presence of CMD and IMVC among patients with suspected CAD.
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Affiliation(s)
- Yang Liu
- Medical School of Chinese People’s Liberation Army, Beijing, China
- Department of Cardiology, Second Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Si Chen
- Department of Cardiology, First Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Shaoyan Liu
- Department of Cardiology, Yantai Municipal Laiyang Central Hospital, Yantai, China
| | - Guoqiang Sun
- Department of Cardiology, Sixth Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Zhijun Sun
- Department of Cardiology, Sixth Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Hongbin Liu
- Medical School of Chinese People’s Liberation Army, Beijing, China
- Department of Cardiology, Second Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Beijing, China
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Beijing, China
- *Correspondence: Hongbin Liu,
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Huang Q, Wang SS, Luo RH. Correlation and mechanism between cardiac magnetic resonance imaging and oral streptococcus count in patients with primary microvascular angina pectoris. Medicine (Baltimore) 2022; 101:e29060. [PMID: 35357350 DOI: 10.1097/md.0000000000029060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Although primary microvascular angina (PMVA) can be diagnosed clinically, the etiology and pathophysiology of PMVA remain unclear. The effects of conventional clinical medications (aspirin, statins, and nitrates) are unsatisfactory, and PMVA can lead to serious cardiovascular events. The present study was designed to analyze the correlation between the load perfusion cardiovascular magnetic resonance imaging (CMR) results and the Streptococcus sanguinis(S sanguinis) count and the correlations between the S sanguinis count in oral cavity subgingival plaque and changes in the plasma levels of platelet alpha-granule membrane glycoprotein 140 (GMP-140), fibrinopeptide A (FPA), von Willebrand factor (vWF), and homocysteine (Hcy) in patients with PMVA after increased anti-infective treatment of the oral cavity. This study also discusses the pathogenesis of PMVA from this perspective. The differences in the S sanguinis count in oral cavity subgingival plaque and oral health status between healthy people and PMVA patients will be compared, and the correlation between the oral cavity health status and disease in PMVA patients will be analyzed. METHODS The present randomized controlled trial with a parallel control group will be conducted in 68 PMVA patients diagnosed by the in-patient cardiology department. The selected patients will be randomly divided into 2 groups, one receiving routine drug treatment and the other a combination of anti-infective treatments. The normal control group will comprise 30 healthy people with no infectious oral cavity disease matched by age and sex. We will conduct CMR, and the presence of S sanguinis in subgingival plaques will be used to determine the bacterial count in PMVA patients. Blood samples will also be collected to determine the levels of GMP-140, FPA, vWF, and Hcy. S sanguinis in the subgingival plaque of PMVA patients will be further analyzed after increasing the oral cavity anti-infective treatment; the resulting changes and their correlations with changes in GMP-140, FPA, vWF, and Hcy levels will be assessed. Additionally, the differences in the S sanguinis count and the oral cavity health status of oral cavity dental plaque between healthy people and PMVA patients will be determined, and the correlation between the oral cavity conditions and PMVA will be analyzed. The relationship between the perfusion CMR results and the oral cavity S sanguinis count of PMVA patients, and the potential pathogenesis, will be explored. We will use the SPSS19.0 statistical software package to analyze the data. The measurements will be expressed as means±standard deviation. Student t test will be used for intergroup comparisons, a relative number description will be used for the count data, and the chi-square test will be used for intergroup comparisons. Multivariate logistic regression will be performed to identify associations. A P value < .05 will be considered significant. DISCUSSION In this study, the correlation between the perfusion CMR results and the S sanguinis count in oral cavity subgingival plaque of PMVA patients will be analyzed. Changes in the levels of GMP-140, FPA, vWF, and Hcy of PMVA patients after receiving increased oral cavity anti-infective treatment will be explored, and the difference in the S sanguinis count in oral cavity subgingival plaque and the oral cavity health status between healthy people and PMVA patients will be compared. ATRIAL REGISTRATION Chinese Clinical Trial Registry, (http://www.chictr.org.cn/showprojen.aspx?proj=45091).
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Affiliation(s)
- Qi Huang
- Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine (HangZhou Red Cross Hospital), Hangzhou, 208 Huancheng East Road, Zhejiang, China
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Nanna MG, Vemulapalli S, Fordyce CB, Mark DB, Patel MR, Al-Khalidi HR, Kelsey M, Martinez B, Yow E, Mullen S, Stone GW, Ben-Yehuda O, Udelson JE, Rogers C, Douglas PS. The prospective randomized trial of the optimal evaluation of cardiac symptoms and revascularization: Rationale and design of the PRECISE trial. Am Heart J 2022; 245:136-148. [PMID: 34953768 PMCID: PMC8979644 DOI: 10.1016/j.ahj.2021.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/14/2021] [Accepted: 12/14/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND Clinicians vary widely in their preferred diagnostic approach to patients with non-acute chest pain. Such variation exposes patients to potentially avoidable risks, as well as inefficient care with increased costs and unresolved patient concerns. METHODS The Prospective Randomized Trial of the Optimal Evaluation of Cardiac Symptoms and Revascularization (PRECISE) trial (NCT03702244) compares an investigational "precision" diagnostic strategy to a usual care diagnostic strategy in participants with stable chest pain and suspected coronary artery disease (CAD). RESULTS PRECISE randomized 2103 participants with stable chest pain and a clinical recommendation for testing for suspected CAD at 68 outpatient international sites. The investigational precision evaluation strategy started with a pre-test risk assessment using the PROMISE Minimal Risk Tool. Those at lowest risk were assigned to deferred testing (no immediate testing), and the remainder received coronary computed tomographic angiography (cCTA) with selective fractional flow reserve (FFRCT) for any stenosis meeting a threshold of ≥30% and <90%. For participants randomized to usual care, the clinical care team selected the initial noninvasive or invasive test (diagnostic angiography) according to customary practice. The use of cCTA as the initial diagnostic strategy was proscribed by protocol for the usual care strategy. The primary endpoint is time to a composite of major adverse cardiac events (MACE: all-cause death or non-fatal myocardial infarction) or invasive cardiac catheterization without obstructive CAD at 1 year. Secondary endpoints include health care costs and quality of life. CONCLUSIONS PRECISE will determine whether a precision approach comprising a strategically deployed combination of risk-based deferred testing and cCTA with selective FFRCT improves the clinical outcomes and efficiency of the diagnostic evaluation of stable chest pain over usual care.
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Affiliation(s)
- Michael G. Nanna
- Section of Cardiovascular Medicine, Yale School of Medicine, New Haven, CT
| | | | - Christopher B. Fordyce
- Division of Cardiology, Vancouver General Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Daniel B. Mark
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | - Manesh R. Patel
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | | | - Michelle Kelsey
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | - Beth Martinez
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | - Eric Yow
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
| | | | - Gregg W. Stone
- Icahn School of Medicine at Mount Sinai, Mount Sinai Heart and the Cardiovascular Research Foundation, New York, NY
| | - Ori Ben-Yehuda
- Cardiovascular Research Foundation, NY, NY and the University of California, San Diego
| | - James E. Udelson
- Division of Cardiology and the CardioVascular Center, Tufts Medical Center, Boston, MA
| | | | - Pamela S. Douglas
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
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10
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Diagnostic Policies Optimization for Chronic Diseases Based on POMDP Model. Healthcare (Basel) 2022; 10:healthcare10020283. [PMID: 35206897 PMCID: PMC8872177 DOI: 10.3390/healthcare10020283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/22/2022] [Accepted: 01/30/2022] [Indexed: 02/05/2023] Open
Abstract
During the process of disease diagnosis, overdiagnosis can lead to potential health loss and unnecessary anxiety for patients as well as increased medical costs, while underdiagnosis can result in patients not being treated on time. To deal with these problems, we construct a partially observable Markov decision process (POMDP) model of chronic diseases to study optimal diagnostic policies, which takes into account individual characteristics of patients. The objective of our model is to maximize a patient’s total expected quality-adjusted life years (QALYs). We also derive some structural properties, including the existence of the diagnostic threshold and the optimal diagnosis age for chronic diseases. The resulting optimization is applied to the management of coronary heart disease (CHD). Based on clinical data, we validate our model, demonstrate how the quantitative tool can provide actionable insights for physicians and decision makers in health-related fields, and compare optimal policies with actual clinical decisions. The results indicate that the diagnostic threshold first decreases and then increases as the patient’s age increases, which contradicts the intuitive non-decreasing thresholds. Moreover, diagnostic thresholds were higher for women than for men, especially at younger ages.
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11
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Hanson CA, Lu E, Ghumman SS, Ouellette ML, Löffler AI, Beller GA, Bourque JM. Long-term outcomes in patients with normal coronary arteries, nonobstructive, or obstructive coronary artery disease on invasive coronary angiography. Clin Cardiol 2021; 44:1286-1295. [PMID: 34216037 PMCID: PMC8428062 DOI: 10.1002/clc.23686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/07/2021] [Accepted: 06/24/2021] [Indexed: 11/30/2022] Open
Abstract
Background Normal or near normal coronary arteries (NNCA) or nonobstructive coronary artery disease (CAD) are commonly found on invasive coronary angiography (ICA). Hypothesis We aimed to determine long‐term outcomes by severity of CAD in a contemporary cohort of patients undergoing ICA for evaluation for ischemic heart disease. Methods We assessed a consecutive cohort of 925 patients who underwent non‐emergent ICA over 24 months. Cardiac death (CD), nonfatal myocardial infarction (NFMI), late revascularization, and medication use were assessed. Results Follow‐up data was available in 850 patients. Of patients without heart failure, at a median of 6.0 years, there was a significant decrease in survival free from CD or NFMI, and from all cardiac events, for those with obstructive CAD compared with patients with NNCAs or nonobstructive CAD (p < .001 for both). No differences between NNCA and nonobstructive CAD patients in rates of CD or NFMI (2.0% vs. 2.1%/year, p = .58) or all cardiac events (2.4% vs. 2.9%/year, p = .84) were observed. Conclusion Long‐term follow‐up in a contemporary cohort of consecutive patients undergoing non‐emergent ICA for detection of CAD showed no difference in annual rates of CD or NFMI, or total cardiac events, in patients with NNCAs versus those with nonobstructive CAD, whereas patients with obstructive CAD had significantly more events. Event rates were low and similar by gender. Use of aspirin, lipid lowering therapy, and beta‐blockers increased in all subgroups after ICA. We speculate this may explain the low incidence of subsequent cardiac events, and similar event rates in patients with NNCA and nonobstructive CAD, even in patients presenting with non‐ST‐elevation MI.
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Affiliation(s)
- Christopher A Hanson
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Edwin Lu
- Department of Medicine, University of North Carolina Health System, Chapel Hill, North Carolina, USA
| | - Saad S Ghumman
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Michelle L Ouellette
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Adrián I Löffler
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia, USA
| | - George A Beller
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Jamieson M Bourque
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia, USA.,Department of Radiology, University of Virginia Health System, Charlottesville, Virginia, USA
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12
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Musey PI, Bellolio F, Upadhye S, Chang AM, Diercks DB, Gottlieb M, Hess EP, Kontos MC, Mumma BE, Probst MA, Stahl JH, Stopyra JP, Kline JA, Carpenter CR. Guidelines for reasonable and appropriate care in the emergency department (GRACE): Recurrent, low-risk chest pain in the emergency department. Acad Emerg Med 2021; 28:718-744. [PMID: 34228849 DOI: 10.1111/acem.14296] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/21/2021] [Accepted: 05/12/2021] [Indexed: 12/15/2022]
Abstract
This first Guideline for Reasonable and Appropriate Care in the Emergency Department (GRACE-1) from the Society for Academic Emergency Medicine is on the topic: Recurrent, Low-risk Chest Pain in the Emergency Department. The multidisciplinary guideline panel used The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to assess the certainty of evidence and strength of recommendations regarding eight priority questions for adult patients with recurrent, low-risk chest pain and have derived the following evidence based recommendations: (1) for those >3 h chest pain duration we suggest a single, high-sensitivity troponin below a validated threshold to reasonably exclude acute coronary syndrome (ACS) within 30 days; (2) for those with a normal stress test within the previous 12 months, we do not recommend repeat routine stress testing as a means to decrease rates of major adverse cardiac events at 30 days; (3) insufficient evidence to recommend hospitalization (either standard inpatient admission or observation stay) versus discharge as a strategy to mitigate major adverse cardiac events within 30 days; (4) for those with non-obstructive (<50% stenosis) coronary artery disease (CAD) on prior angiography within 5 years, we suggest referral for expedited outpatient testing as warranted rather than admission for inpatient evaluation; (5) for those with no occlusive CAD (0% stenosis) on prior angiography within 5 years, we recommend referral for expedited outpatient testing as warranted rather than admission for inpatient evaluation; (6) for those with a prior coronary computed tomographic angiography within the past 2 years with no coronary stenosis, we suggest no further diagnostic testing other than a single, normal high-sensitivity troponin below a validated threshold to exclude ACS within that 2 year time frame; (7) we suggest the use of depression and anxiety screening tools as these might have an effect on healthcare use and return emergency department (ED) visits; and (8) we suggest referral for anxiety or depression management, as this might have an impact on healthcare use and return ED visits.
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Affiliation(s)
- Paul I. Musey
- Department of Emergency Medicine Indiana University School of Medicine Indianapolis IN USA
| | | | - Suneel Upadhye
- Division of Emergency Medicine McMaster University Hamilton Canada
| | - Anna Marie Chang
- Department of Emergency Medicine Thomas Jefferson University Philadelphia PA USA
| | - Deborah B. Diercks
- Department of Emergency Medicine UT Southwestern Medical Center Dallas TX USA
| | - Michael Gottlieb
- Department of Emergency Medicine Rush Medical Center Chicago IL USA
| | - Erik P. Hess
- Department of Emergency Medicine Vanderbilt University Medical Center Nashville TN USA
| | - Michael C. Kontos
- Department of Internal Medicine Virginia Commonwealth University Richmond VA USA
| | - Bryn E. Mumma
- Department of Emergency Medicine UC Davis School of Medicine Sacramento CA USA
| | - Marc A. Probst
- Department of Emergency Medicine Icahn School of Medicine at Mount Sinai New York NY USA
| | | | - Jason P. Stopyra
- Department of Emergency Medicine Wake Forest School of Medicine Winston‐SalemNC USA
| | - Jeffrey A. Kline
- Department of Emergency Medicine Indiana University School of Medicine Indianapolis IN USA
| | - Christopher R. Carpenter
- Department of Emergency Medicine and Emergency Care Research Core Washington University School of Medicine St. Louis MO USA
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13
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Huang Q, Wang WT, Wang SS, Pei DA, Sui XQ. Cardiovascular magnetic resonance image analysis and mechanism study for the changes after treatments for primary microvascular angina pectoris. Medicine (Baltimore) 2021; 100:e26038. [PMID: 34032727 PMCID: PMC8154500 DOI: 10.1097/md.0000000000026038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 01/04/2023] Open
Abstract
ABSTRACT Most cases of primary microvascular angina pectoris (PMVA) are diagnosed clinically, but the etiology and pathological mechanisms are unknown. The effect of routine clinical medications is minimal, and PMVA can progress to serious cardiovascular events. To improve the diagnosis and effective treatment of this disease, this study was designed to diagnose PMVA via cardiovascular magnetic resonance (CMR) and the coronary angiography thrombolysis in myocardial infarction (TIMI) blood flow grade, as well as to analyze vascular endothelial function to elucidate the pathogenesis of PMVA and compare the effects of routine clinical medications.The present randomized controlled trial including a parallel control group will be conducted on 63 PMVA patients in our cardiovascular department. The patients will be selected and randomly divided into the control, diltiazem, and nicorandil groups. The control group will be administered routine drug treatments (aspirin, atorvastatin, betaloc ZOK, perindopril, and isosorbidemononitrate sustained-release tablets). The diltiazem group will be additionally treated with 90 mg qd diltiazem sustained-release capsules. The nicorandil group was additionally given 5 mg tid nicorandil tablets. Coronary angiography will be performed before treatment, the severity and frequency of chest pain will be evaluated before and after 9 months of treatment, and homocysteine and von Willebrand factor levels will be measured. Electrocardiography, echocardiography, dynamic electrocardiography, a treadmill exercise test, and CMR will be performed. Sex, age, body mass index, complications, smoking, and family history will also be recorded. The SPSS19.0 statistical software package will be used to analyze the data. The measurements will be expressed as the mean ± standard deviation. Measurement data will be compared between the groups using Student's t-test. A relative number description will be used for the counting data, and the chi-squaretest will be used to compare the groups. A multivariate logistic regression analysis will be performed A P-value < .05 will be considered significant.The direct indices (CMR and coronary angiographic TIMI blood flow grade) may improve after adding diltiazem or nicorandil during routine drug treatments (such as aspirin, statins, and nitrates) in PMVA patients, and indirect indices (homocysteine and von Willebrand factor levels) may be reduced. TRIAL REGISTRATION Chinese Clinical Trial Registry (http://www.chictr.org.cn/showprojen.aspx?proj=41894), No. CHiCTR1900025319, Registered on August 23, 2019; pre initiation.
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14
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Appropriateness of angiography for suspected coronary artery disease. Indian Heart J 2021; 73:376-378. [PMID: 34154761 PMCID: PMC8322814 DOI: 10.1016/j.ihj.2021.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 02/07/2021] [Accepted: 04/08/2021] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to assess the appropriate use of diagnostic catheterizations (DC) for the patients with suspected coronary artery disease performed in Iran. The Electronic Health Record System database and manual review of files were utilised to collect data between 2012 and 2014. Patients were categorized in three groups as appropriate, uncertain, and inappropriate usage of DC and the logistic regression was used to investigate the relationships between variables. One-quarter of the 2458 angiographies were rated as inappropriate, out of which 99% had no previous stress test. The rate of inappropriate DC between various hospitals were approximately the same. The regression showed that some risk factors (Sex, high cholesterol, smoking, chronic heart failure, renal failure, diabetes) were significantly associated with inappropriate rate.
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15
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Coronary Computed Tomography Angiography for Assesment of Stable Coronary Artery Disease – a Cost-effectiveness Perspective. JOURNAL OF INTERDISCIPLINARY MEDICINE 2021. [DOI: 10.2478/jim-2021-0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Patients with chest pain presenting to the emergency room are currently investigated using either invasive coronary angiography (ICA) or noninvasive coronary computed tomography angiography (CCTA). ICA remains an expensive diagnostic tool and exposes patients to a high risk of periprocedural complication. Besides the currently available expansive economic evidence, there is still an important lingering issue: to establish, from the healthcare provider’s point of view, which is the most cost-effective investigation tool for the detection of significant coronary artery disease. The aim of this article is to present the latest developments in the field of imaging tools for the detection of coronary atherosclerosis in patients with chest pain, from the perspective of a cost-effectiveness analysis.
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16
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Li Z, Luan Y, Wang M, Li Y, Shen X, Fu G, Zhang W. Effects of salvianolate on microcirculatory disturbance in patients with stable coronary heart disease: study protocol for a randomized controlled trial. Trials 2021; 22:192. [PMID: 33685500 PMCID: PMC7938457 DOI: 10.1186/s13063-021-05099-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 02/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obstruction of coronary microcirculation can lead to myocardial ischemia and poor prognosis. Salvianolate exerts cardiovascular protection at cellular levels. However, no studies have confirmed the effect of salvianolate on stable coronary heart disease (CHD) with high fractional flow reserve (FFR) and myocardial microcirculatory disturbances. METHODS/DESIGN This study will enroll 78 patients who have stable coronary disease with 50 to 70% stenosis in major coronary arteries and whose FFR > 0.80 and index of microcirculatory resistance (IMR) > 25. Patients will be randomly divided into the salvianolate group or the placebo group. After above evaluations, salvianolate 200 mg will be intravenously dripped immediately for the next 30 min and subsequent 7 days in the salvianolate group, and matching 0.9% normal saline will be arranged in the placebo group. IMR will be reevaluated in immediate phase after first 30 min of salvianolate or placebo treatment. The primary end point will be the IMR change in this phase, and the secondary end points will be the total ischemic burden assessed by the Seattle angina scale, quality of life scale, Holter electrocardiography, and 6-min walk test after 7 days before discharge. DISCUSSION This study will firstly clarify the improvement effect of salvianolate on coronary microcirculation and provide an effective treatment method for stable CHD patients with high FFR and myocardial microcirculatory disturbance. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR1800018772 . Registered on 9 October 2018 and updated on 2 March 2020.
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Affiliation(s)
- Zhanlu Li
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, People's Republic of China
| | - Yi Luan
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, People's Republic of China
| | - Min Wang
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, People's Republic of China
| | - Ya Li
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, People's Republic of China
| | - Xiaohua Shen
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, People's Republic of China
| | - Guosheng Fu
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, People's Republic of China
| | - Wenbin Zhang
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, People's Republic of China.
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17
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Rivero F, Gutiérrez-Barrios A, Gomez-Lara J, Fuentes-Ferrer M, Cuesta J, Keulards DCJ, Pardo-Sanz A, Bastante T, Izaga-Torralba E, Gomez-Hospital JA, García-Guimaraes M, Pijls NHJ, Alfonso F. Coronary microvascular dysfunction assessed by continuous intracoronary thermodilution: A comparative study with index of microvascular resistance. Int J Cardiol 2021; 333:1-7. [PMID: 33684380 DOI: 10.1016/j.ijcard.2021.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/12/2021] [Accepted: 03/01/2021] [Indexed: 01/16/2023]
Abstract
BACKGROUND This study aimed to assess the correlation between the standard of care, the index of microvascular resistance (IMR) versus the novel microvascular resistance (Rmicro) and to determine the pathologic cut-off value in a selected population with suspected coronary microvascular dysfunction (CMD). METHODS One-hundred and twenty patients with high clinical suspicion of CMD due to ischemic symptoms in the absence of significant epicardial coronary lesions were prospectively included. Following a standardized systematic protocol, coronary flow reserve, IMR, fractional flow reserve, Q and Rmicro were measured in the left anterior descending coronary artery using a temperature/pressure sensor-tipped guidewire and a dedicated infusion catheter. RESULTS There was a high prevalence of CMD with 50 (42%) patients showing an IMR ≥ 25. Median IMR was 23 [IQR: 14-34] and median Rmicro was 464 Woods Units (WU) [IQR: 354-636WU]. ROC analyses identified 500 WU as the optimal Rmicro cut-off to identify patients with an IMR ≥ 25, with an area under the ROC curve (C statistic) of 0.83 (95% CI: 0.74 to 0.89, p < 0.0001). CONCLUSIONS Rmicro derived from continuous intracoronary thermodilution is an accurate index to measure microvascular resistances enabling the invasive diagnostic of CMD.
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Affiliation(s)
- Fernando Rivero
- Hospital Universitario de la Princesa, IIS-IP, CIBERCV, Madrid, Spain
| | | | - Josep Gomez-Lara
- Hospital Universitari de Bellvitge, Institut d' Investigació Biomèdica de Bellvitge (IDIBELL), Universitat de Barcelona, L' Hospitalet de Llobregat, Spain
| | - Manuel Fuentes-Ferrer
- Department of Preventive Medicine, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid, Spain
| | - Javier Cuesta
- Hospital Universitario de la Princesa, IIS-IP, CIBERCV, Madrid, Spain
| | | | | | - Teresa Bastante
- Hospital Universitario de la Princesa, IIS-IP, CIBERCV, Madrid, Spain
| | | | - Joan-Antoni Gomez-Hospital
- Hospital Universitari de Bellvitge, Institut d' Investigació Biomèdica de Bellvitge (IDIBELL), Universitat de Barcelona, L' Hospitalet de Llobregat, Spain
| | - Marcos García-Guimaraes
- Servicio de Cardiología, Hospital del Mar - Parc de Salut Mar, Barcelona, Grupo de Investigación Biomédica en Enfermedades del Corazón, IMIM (Instituto Hospital del Mar de Investigaciones Médicas), Barcelona, Spain
| | - Nico H J Pijls
- Department of Cardiology, Catharina Hospital, Eindhoven, the Netherlands
| | - Fernando Alfonso
- Hospital Universitario de la Princesa, IIS-IP, CIBERCV, Madrid, Spain.
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18
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Kibel A, Lukinac AM, Dambic V, Juric I, Selthofer-Relatic K. Oxidative Stress in Ischemic Heart Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6627144. [PMID: 33456670 PMCID: PMC7785350 DOI: 10.1155/2020/6627144] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 11/27/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023]
Abstract
One of the novel interesting topics in the study of cardiovascular disease is the role of the oxidation system, since inflammation and oxidative stress are known to lead to cardiovascular diseases, their progression and complications. During decades of research, many complex interactions between agents of oxidative stress, oxidation, and antioxidant systems have been elucidated, and numerous important pathophysiological links to na number of disorders and diseases have been established. This review article will present the most relevant knowledge linking oxidative stress to vascular dysfunction and disease. The review will focus on the role of oxidative stress in endotheleial dysfunction, atherosclerosis, and other pathogenetic processes and mechanisms that contribute to the development of ischemic heart disease.
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Affiliation(s)
- Aleksandar Kibel
- Department for Heart and Vascular Diseases, Osijek University Hospital, Osijek, Croatia
- Department of Physiology and Immunology, Faculty of Medicine, University J.J. Strossmayer in Osijek, Osijek, Croatia
| | - Ana Marija Lukinac
- Department of Rheumatology and Clinical Immunology, Osijek University Hospital, Osijek, Croatia
- Faculty of Medicine, University J.J. Strossmayer in Osijek, Osijek, Croatia
| | - Vedran Dambic
- Faculty of Medicine, University J.J. Strossmayer in Osijek, Osijek, Croatia
- Department for Emergency Medical Services of the Osijek-Baranja county, Osijek, Croatia
| | - Iva Juric
- Department for Heart and Vascular Diseases, Osijek University Hospital, Osijek, Croatia
- Department of Internal Medicine, Faculty of Medicine, University J.J. Strossmayer in Osijek, Osijek, Croatia
| | - Kristina Selthofer-Relatic
- Department for Heart and Vascular Diseases, Osijek University Hospital, Osijek, Croatia
- Department of Internal Medicine, Faculty of Medicine, University J.J. Strossmayer in Osijek, Osijek, Croatia
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19
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Padro T, Manfrini O, Bugiardini R, Canty J, Cenko E, De Luca G, Duncker DJ, Eringa EC, Koller A, Tousoulis D, Trifunovic D, Vavlukis M, de Wit C, Badimon L. ESC Working Group on Coronary Pathophysiology and Microcirculation position paper on 'coronary microvascular dysfunction in cardiovascular disease'. Cardiovasc Res 2020; 116:741-755. [PMID: 32034397 DOI: 10.1093/cvr/cvaa003] [Citation(s) in RCA: 130] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/29/2019] [Accepted: 02/05/2020] [Indexed: 12/12/2022] Open
Abstract
Although myocardial ischaemia usually manifests as a consequence of atherosclerosis-dependent obstructive epicardial coronary artery disease, a significant percentage of patients suffer ischaemic events in the absence of epicardial coronary artery obstruction. Experimental and clinical evidence highlight the abnormalities of the coronary microcirculation as a main cause of myocardial ischaemia in patients with 'normal or near normal' coronary arteries on angiography. Coronary microvascular disturbances have been associated with early stages of atherosclerosis even prior to any angiographic evidence of epicardial coronary stenosis, as well as to other cardiac pathologies such as myocardial hypertrophy and heart failure. The main objectives of the manuscript are (i) to provide updated evidence in our current understanding of the pathophysiological consequences of microvascular dysfunction in the heart; (ii) to report on the current knowledge on the relevance of cardiovascular risk factors and comorbid conditions for microcirculatory dysfunction; and (iii) to evidence the relevance of the clinical consequences of microvascular dysfunction. Highlighting the clinical importance of coronary microvascular dysfunction will open the field for research and the development of novel strategies for intervention will encourage early detection of subclinical disease and will help in the stratification of cardiovascular risk in agreement with the new concept of precision medicine.
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Affiliation(s)
- Teresa Padro
- Cardiovascular Program-ICCC, Research Institute Hospital Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red Cardiovascular (CIBERCV) Instituto de Salud Carlos III, Madrid, Spain.,Cardiovascular Research Chair, Autonomous University Barcelona (UAB), Barcelona, Spain
| | - Olivia Manfrini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Raffaele Bugiardini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - John Canty
- Division of Cardiology, Department of Medicine, State University of New York at Buffalo, Buffalo, NY, USA
| | - Edina Cenko
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Giuseppe De Luca
- Division of Cardiology, Maggiore della Carità Hospital, Eastern Piedmont University, Novara, Italy
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research Institute COEUR, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Etto C Eringa
- Department of Physiology, Amsterdam Cardiovascular Science Institute, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Akos Koller
- Department of Translational Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary.,Department of Physiology, New York Medical College, Valhalla, NY, USA
| | - Dimitris Tousoulis
- First Department of Cardiology, Hippokration Hospital, University of Athens Medical School, Athens, Greece
| | - Danijela Trifunovic
- Department of Cardiology, University Clinical Center of Serbia; and School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Marija Vavlukis
- University Clinic of Cardiology, Medical Faculty, Ss' Cyril and Methodius University, Skopje, Republic of Macedonia
| | - Cor de Wit
- Institut für Physiologie, Universität zu Lübeck, Lübeck, Germany.,DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Lina Badimon
- Cardiovascular Program-ICCC, Research Institute Hospital Santa Creu i Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red Cardiovascular (CIBERCV) Instituto de Salud Carlos III, Madrid, Spain.,Cardiovascular Research Chair, Autonomous University Barcelona (UAB), Barcelona, Spain
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20
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Tayyem RF, Al-Bakheit A, Hammad SS, Al-Shudifat AE, Azab M, Bawadi H. Fruit and vegetable consumption and cardiovascular diseases among Jordanians: a case-control study. Cent Eur J Public Health 2020; 28:208-218. [PMID: 32997477 DOI: 10.21101/cejph.a6149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 07/31/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Fruit and vegetable intake has been reported as one of the significant protective factors against the development of cardiovascular diseases (CVD). This study aimed to assess the possible preventive effect of fruit and vegetable consumption on developing CVD. METHODS A total of 398 participants (205 cases and 193 controls) referred for elective coronary angiography with clinical suspicion of coronary artery disease to Prince Hamza Hospital in Amman were enrolled in this case-control study. Dietary data were collected separately from each patient using interview-based food frequency questionnaire. RESULTS The findings of the present study revealed that a total consumption of 3 servings of vegetable per day decreased significantly the risk of CVD to about 54% (OR = 0.46, 95% CI: 0.22-0.97, p = 0.033). Consumption of banana was found to reduce the risk of CVD to about 44% and 62% when consuming 1-2 and 3-6 servings/week, respectively, with p-value for trend 0.004. For the vegetables, the consumption of grape leaves and stuffed vegetables in general was significantly associated with lower risk of CVD. Increasing cauliflower consumption of 1-2 servings per week decreased CVD risk to about 37% (OR = 0.63, 95% CI: 0.38-0.98). Consuming up to 3-6 servings per week of mixed vegetables (OR = 0.10, 95% CI: 0.01-0.83) and onion (OR = 0.42, 95% CI: 0.22-0.80) revealed an inverse association with CVD development. CONCLUSIONS Adding to the present evidence, consumption of some fruits and vegetables could be considered as preventive factor against developing CVD. However, the association of consuming vegetables with preventing CVD was higher than the fruit consumption.
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Affiliation(s)
- Reema F Tayyem
- Department of Nutrition and Food Technology, Faculty of Agriculture, University of Jordan, Amman, Jordan
| | - Ala'a Al-Bakheit
- Department of Nutrition and Food Processing, Faculty of Agricultural Technology, Al-Balqa Applied University, Al-Salt, Jordan
| | - Shatha S Hammad
- Department of Nutrition and Food Technology, Faculty of Agriculture, University of Jordan, Amman, Jordan
| | - Abdel-Ellah Al-Shudifat
- Faculty of Medicine, Hashemite University, Zarqa, Jordan.,Prince Hamza Hospital, Amman, Jordan
| | - Mohammed Azab
- Faculty of Medicine, Hashemite University, Zarqa, Jordan.,Prince Hamza Hospital, Amman, Jordan
| | - Hiba Bawadi
- College of Health Sciences, QU-Health, Qatar University, Doha, Qatar
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Kato Y, Ambale-Venkatesh B, Kassai Y, Kasuboski L, Schuijf J, Kapoor K, Caruthers S, Lima JAC. Non-contrast coronary magnetic resonance angiography: current frontiers and future horizons. MAGMA (NEW YORK, N.Y.) 2020; 33:591-612. [PMID: 32242282 PMCID: PMC7502041 DOI: 10.1007/s10334-020-00834-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/22/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023]
Abstract
Coronary magnetic resonance angiography (coronary MRA) is advantageous in its ability to assess coronary artery morphology and function without ionizing radiation or contrast media. However, technical limitations including reduced spatial resolution, long acquisition times, and low signal-to-noise ratios prevent it from clinical routine utilization. Nonetheless, each of these limitations can be specifically addressed by a combination of novel technologies including super-resolution imaging, compressed sensing, and deep-learning reconstruction. In this paper, we first review the current clinical use and motivations for non-contrast coronary MRA, discuss currently available coronary MRA techniques, and highlight current technical developments that hold unique potential to optimize coronary MRA image acquisition and post-processing. In the final section, we examine the various research-based coronary MRA methods and metrics that can be leveraged to assess coronary stenosis severity, physiological function, and atherosclerotic plaque characterization. We specifically discuss how such technologies may contribute to the clinical translation of coronary MRA into a robust modality for routine clinical use.
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Affiliation(s)
- Yoko Kato
- Division of Cardiology, Johns Hopkins University School of Medicine, 600 N Wolfe St, Blalock 524, Baltimore, MD, 21287-0409, USA
| | | | | | | | | | - Karan Kapoor
- Division of Cardiology, Johns Hopkins University School of Medicine, 600 N Wolfe St, Blalock 524, Baltimore, MD, 21287-0409, USA
| | | | - Joao A C Lima
- Division of Cardiology, Johns Hopkins University School of Medicine, 600 N Wolfe St, Blalock 524, Baltimore, MD, 21287-0409, USA.
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22
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Cardiac-CT and cardiac-MR cost-effectiveness: a literature review. Radiol Med 2020; 125:1200-1207. [PMID: 32970273 DOI: 10.1007/s11547-020-01290-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/08/2020] [Indexed: 01/18/2023]
Abstract
Cardiovascular diseases are still among the first causes of death worldwide with a huge impact on healthcare systems. Within these conditions, the correct diagnosis of coronary artery disease with the most appropriate imaging-based evaluations is of utmost importance. The sustainability of the healthcare systems, considering the high economic burden of modern cardiac imaging equipments, makes cost-effective analysis an important tool, currently used for weighing different costs and health outcomes, when policy makers have to allocate funds and to prioritize interventions, getting the most out of their financial resources. This review aims at evaluating cost-effective analysis in the more recent literature, focused on the role of Calcium Score, coronary computed tomography angiography and cardiac magnetic resonance.
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23
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Thomas MA, Hazany S, Ellingson BM, Hu P, Nguyen KL. Pathophysiology, classification, and MRI parallels in microvascular disease of the heart and brain. Microcirculation 2020; 27:e12648. [PMID: 32640064 DOI: 10.1111/micc.12648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/12/2020] [Accepted: 07/02/2020] [Indexed: 12/13/2022]
Abstract
Diagnostic imaging technology in vascular disease has long focused on large vessels and the pathologic processes that impact them. With improved diagnostic techniques, investigators are now able to uncover many underlying mechanisms and prognostic factors for microvascular disease. In the heart and brain, these pathologic entities include coronary microvascular disease and cerebral small vessel disease, both of which have significant impact on patients, causing angina, myocardial infarction, heart failure, stroke, and dementia. In the current paper, we will discuss parallels in pathophysiology, classification, and diagnostic modalities, with a focus on the role of magnetic resonance imaging in microvascular disease of the heart and brain. Novel approaches for streamlined imaging of the cardiac and central nervous systems including the use of intravascular contrast agents such as ferumoxytol are presented, and unmet research gaps in diagnostics are summarized.
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Affiliation(s)
- Michael A Thomas
- Division of Cardiology, David Geffen School of Medicine at, UCLA and VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,Department of Radiology, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Saman Hazany
- Department of Radiology, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Benjamin M Ellingson
- Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Peng Hu
- Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Kim-Lien Nguyen
- Division of Cardiology, David Geffen School of Medicine at, UCLA and VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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Cost-Effectiveness Analysis of Stress Cardiovascular Magnetic Resonance Imaging for Stable Chest Pain Syndromes. JACC Cardiovasc Imaging 2020; 13:1505-1517. [DOI: 10.1016/j.jcmg.2020.02.029] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 01/04/2023]
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Tian J, Zhang L, Yang X, Zuo H, Zhao X, Yong J, He Y, Song X. The effect of Shexiang Tongxin Dropping Pills on coronary microvascular dysfunction (CMVD) among those with a mental disorder and non-obstructive coronary artery disease based on stress cardiac magnetic resonance images: A study protocol. Medicine (Baltimore) 2020; 99:e20099. [PMID: 32481277 PMCID: PMC7249860 DOI: 10.1097/md.0000000000020099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
INTRODUCTION Coronary microvascular dysfunction (CMVD), highly prevalent among patients with a mental disorder (anxiety or depression), is closely related to adverse cardiac events, including hospitalization, sudden cardiac death, and myocardial infarction. Shexiang Tongxin Dropping Pills (STDP), a traditional Chinese medicine, exerts endothelial protective function by anti-inflammation, anti-oxidative stress, and promoting blood circulation. STDP protects against CMVD in previous fundamental studies. The present trial is aiming at evaluating the effect of STDP on CMVD among depressed or anxious patients with non-obstructive coronary artery disease (NOCAD). METHODS AND ANALYSIS Seventy-two depressed or anxious patients diagnosed with NOCAD combined with CMVD utilizing coronary artery angiography and stress cardiac magnetic resonance (CMR) will be recruited in the present study. These patients will be randomized into two groups, namely, Nicorandil group (Nicorandil combined with routine medicine), and STDP groups (STDP combined with routine medicine). The change of CMVD status by assessing absolute myocardial blood flow and myocardial reperfusion using stress CMR 3-month after discharge is defined as the primary endpoint. Major adverse cardiac events (MACEs), quality of life (QOL), and metal disorder improvement are defined as the secondary endpoints. Seattle angina questionnaire (SAQ) which is used to assess angina pectoris and QOL will be recorded at 1-, 3-, 6-, 9-, 12-month of follow-up. Seven-item Generalized Anxiety Disorder Scale (GAD-7) and 9-item depression module from the Patient Health Questionnaire (PHQ9) which utilized to evaluate anxiety and depression, respectively, will be recorded at 1-, 3-, 6-, 9-, 12-month of follow-up. This study will first evaluate the efficacy of STDP on CMVD among patients with a mental disorder and NOCAD, and discuss the potential mechanisms, providing therapeutic evidence for the STDP for these patients.
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Affiliation(s)
| | | | | | - Huijuan Zuo
- Department of Community Health Research, Beijing Anzhen Hospital, Capital Medical University
| | | | | | - Yi He
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Fractional Flow Reserve Derived from Coronary Computed Tomography Angiography Safely Defers Invasive Coronary Angiography in Patients with Stable Coronary Artery Disease. J Clin Med 2020; 9:jcm9020604. [PMID: 32102371 PMCID: PMC7074264 DOI: 10.3390/jcm9020604] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 01/31/2020] [Accepted: 02/18/2020] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVES In the United States, the real-world feasibility and outcome of using fractional flow reserve from coronary computed tomography angiography (FFRCT) is unknown. We sought to determine whether a strategy that combined coronary computed tomography angiography (CTA) and FFRCT could safely reduce the need for invasive coronary angiography (ICA), as compared to coronary CTA alone. METHODS The study included 387 consecutive patients with suspected CAD referred for coronary CTA with selective FFRCT and 44 control patients who underwent CTA alone. Lesions with 30-90% diameter stenoses were considered of indeterminate hemodynamic significance and underwent FFRCT. Nadir FFRCT ≤ 0.80 was positive. The rate of patients having ICA, revascularization and major adverse cardiac events were recorded. RESULTS Using coronary CTA and selective FFRCT, 121 patients (32%) had at least one vessel with ≥50% diameter stenosis; 67/121 (55%) patients had at least one vessel with FFRCT ≤ 0.80; 55/121 (45%) underwent ICA; and 34 were revascularized. The proportion of ICA patients undergoing revascularization was 62% (34 of 55). The number of patients with vessels with 30-50% diameter of stenosis was 90 (23%); 28/90 (31%) patients had at least one vessel with FFRCT ≤ 0.80; 8/90 (9%) underwent ICA; and five were revascularized. In our institutional practice, compared to coronary CTA alone, coronary CTA with selective FFRCT reduced the rates of ICA (45% vs. 80%) for those with obstructive CAD. Using coronary CTA with selective FFRCT, no major adverse cardiac events occurred over a mean follow-up of 440 days. CONCLUSION FFRCT safely deferred ICA in patients with CAD of indeterminate hemodynamic significance. A high proportion of those who underwent ICA were revascularized.
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AlBadri A, Mavromatis K, Bairey Merz CN. The role of coronary reactivity testing in women with no obstructive coronary artery disease. Curr Opin Cardiol 2019; 34:656-662. [PMID: 31490202 PMCID: PMC7156026 DOI: 10.1097/hco.0000000000000682] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE OF REVIEW Two-thirds of women with signs and symptoms of ischemia and no obstructive coronary artery disease (INOCA) have abnormal coronary reactivity. These women are challenging to assess, diagnose and manage because of a lack of evidence-based guidelines. Furthermore, they are considered to be at 'low risk' by most physicians, often receive no specific therapy and tend to be dismissed from subspecialty care. RECENT FINDINGS Coronary reactivity testing (CRT) is considered the reference-standard for evaluation of epicardial and microvascular coronary function in response to various vasoactive agents. It provides a comprehensive vascular function assessment for diagnosis, a guide for management, and has prognostic benefit that outweighs the risk of the procedure. We recently demonstrated the prognostic value of assessing coronary vascular reactivity in women with signs and symptoms of ischemia, especially those with no obstructive coronary artery disease. SUMMARY Invasive CRT is a feasible, useful method to identify coronary microvascular dysfunction (CMD) and risk stratify women with INOCA. It has a comparable safety record with other invasive procedures. Future research is directed at optimizing patient selection, streamlining of invasive CRT methods using user-friendly catheters to enhance feasibility in the routine clinical setting, and optimizing treatment protocols, with clinical trials designed to evaluate outcomes.
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Affiliation(s)
- Ahmed AlBadri
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA
| | - Kreton Mavromatis
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA
| | - C. Noel Bairey Merz
- Barbra Streisand Women’s Heart Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA
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Vallée A, Zhang Y, Protogerou A, Safar ME, Blacher J. Added value of aortic pulse wave velocity index for the detection of coronary heart disease by elective coronary angiography. Blood Press 2019; 28:375-384. [PMID: 31293183 DOI: 10.1080/08037051.2019.1641400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background: Non-invasive tests leading to elective coronary angiography (CAG) have low diagnostic yield for obstructive coronary heart disease (CHD). Aortic stiffness, an independent predictor of CHD events can be easily measured by pulse wave velocity (PWV). We aimed at retrospectively evaluating the diagnostic accuracy PWV index to detect CHD in consecutive patients with suspected CHD that underwent CAG.Method: In population of 86 healthy patients with available PWV data, a theoretical PWV was derived. In different population of 62 individuals who underwent CAG for suspected CHD, PWV index was calculated as index [(measured PWV - theoretical PWV)/theoretical PWV]. Logistic regression and comparisons between ROC curves were used to add value of CAG indication performance of PWV index.Results: Out of 62, seventeen patients presented obstructive CHD and 22 patients had non-obstructive CHD. PWV index and severity of CHD were positively correlated (p < 0.0001). After applying several models that included classical CHD predictor, the higher performance to detect abnormal CAG was obtained with the combined classifier PWV index/carotid plaque with 87% sensitivity, 93% specificity, 0.92 accuracy and 0.31 threshold. To detect obstructive CAG, individual classifier PWV index presents 94% sensitivity, 91% specificity, 0.95 accuracy and 0.46 threshold.Conclusion: PWV index is individualized approach that optimizes CHD diagnostic strategies and thus might be clinically useful for reducing the rate of unnecessary invasive CAG.
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Affiliation(s)
- Alexandre Vallée
- Hypertension and Cardiovascular Prevention Unit, Hôtel-Dieu Hospital, Diagnosis and Therapeutic Center, AP-HP, Paris-Descartes University, Paris, France
| | - Yi Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Athanase Protogerou
- Cardiovascular Prevention and Research Unit, Department of Pathophysiology, National and Kapodistrian University of Athens, Greece
| | - Michel E Safar
- Hypertension and Cardiovascular Prevention Unit, Hôtel-Dieu Hospital, Diagnosis and Therapeutic Center, AP-HP, Paris-Descartes University, Paris, France
| | - Jacques Blacher
- Hypertension and Cardiovascular Prevention Unit, Hôtel-Dieu Hospital, Diagnosis and Therapeutic Center, AP-HP, Paris-Descartes University, Paris, France
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Temporal Trends in Fractional Flow Reserve Use in Patients Undergoing Coronary Angiography: A Population-Based Study. CJC Open 2019. [PMCID: PMC7063660 DOI: 10.1016/j.cjco.2018.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background Invasive fractional flow reserve (FFR) has emerged as an important tool to identify a subset of patients in whom coronary revascularization may be beneficial. Our objective was to evaluate temporal trends in FFR use. Methods We identified all coronary angiograms in the CorHealth Ontario Cardiac Registry between the years 2010 and 2015. The primary and secondary outcomes were the age- and sex-adjusted monthly rate of FFR per 100,000 population and per 100 angiograms, respectively. Piecewise regression analyses were used to evaluate the temporal trends in FFR use for the entire cohort, and then stratified by indication (stable coronary artery disease [CAD]) vs acute coronary syndrome [ACS]). Results The study cohort included 379,688 angiograms, of which 122,571 were for stable CAD (32%) and 134,769 were for ACS (36%). Monthly age- and sex-adjusted FFR use rates increased significantly over the study period, from 0.4 to 2.3 per 100,000 people per month. The monthly FFR use rate per 100 angiograms increased from 0.9 to 4.9 per 100 angiograms per month; however, the proportion of positive FFR (< 0.8) results was relatively constant at 28%. There was a more dramatic increase in the use of FFR in the population with stable CAD (1.1 to 8.0 per 100 angiograms/month) compared with the population with ACS (0.6 to 4.5 per 100 angiograms/month). Conclusions There was a > 5-fold increase in the use of FFR in patients across Ontario, which was predominantly driven by use in stable CAD. Case selection for FFR use was relatively unchanged with approximately one-quarter of FFR cases being positive over time.
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Mayala HA, Bakari KH, Mkangala A, Magesa M, Mghanga FP, ZhaoHui W. The association of 18F-FDG PET/CT and biomarkers in confirming coronary microvascular dysfunction. BMC Res Notes 2018; 11:796. [PMID: 30400961 PMCID: PMC6219079 DOI: 10.1186/s13104-018-3892-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 10/27/2018] [Indexed: 12/03/2022] Open
Abstract
Objective The purpose of this study is to evaluate the association between PET/CT CFR and biomarkers combined in confirming the diagnosis of coronary microvascular dysfunction. Results A total of 28 patients (21 males and 7 females) were included in this descriptive observational study (both qualitative and quantitative). The mean patient age was 55.50 ± 10.21 years (range 27–70 years) and the median was 56.5 years (range 49–63 years). All patients underwent Echo, CAG and PET/CT scan. Chest tightness was the most common symptom in our study. Most patients had normal blood pressure (n = 18, 64.3%) while only (n = 10, 37.5%) had hypertension, and (n = 1, 3.6%) had diabetes mellitus. The mean HDL in CMVD (n = 25) and non-CMVD (n = 3) were 1.30 ± 0.39 and 1.08 ± 0.95, respectively, indicating that the difference between the groups was statistically significant (p = 0.04). Similarly, the mean HBA1c- (glycated haemoglobin) in CMVD (n = 25) and non-CMVD (n = 3) were 5.6 ± 0.53 and 5.0 ± 0.26, respectively, with (p = 0.03). Our findings managed to show the association between biomarkers and PET/CT CFR in confirming the diagnosis of coronary microvascular dysfunction.
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Affiliation(s)
- Henry Anselmo Mayala
- Department of Cardiology 10th Floor, Wuhan Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, 501 Building, Hankou, Wuhan, 43000, Hubei Province, China.
| | - Khamis Hassan Bakari
- Department of Radiology and Nuclear Medicine, Wuhan Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Abdalah Mkangala
- Department of Radiology and Nuclear Medicine, Wuhan Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Mafuru Magesa
- Department of Clinical Pharmacology, Wuhan Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Fabian Pius Mghanga
- Department of Internal Medicine, Archbishop James University College, Songea, Tanzania
| | - Wang ZhaoHui
- Department of Cardiology 10th Floor, Wuhan Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, 501 Building, Hankou, Wuhan, 43000, Hubei Province, China
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Chmiel J, Książek MK, Stryszak W, Iwaszczuk P, Hołda MK, Świtacz G, Kozanecki A, Wilkołek P, Rubiś P, Kopeć G, Odrowąż-Pieniążek P, Przewłocki T, Tracz W, Podolec P, Musiałek P. Temporal changes in the pattern of invasive angiography use and its outcome in suspected coronary artery disease: implications for patient management and healthcare resources utilization. ADVANCES IN INTERVENTIONAL CARDIOLOGY 2018; 14:247-257. [PMID: 30302100 PMCID: PMC6173087 DOI: 10.5114/aic.2018.78327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/04/2018] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Invasive coronary angiography (CAG), the 'gold standard' in coronary artery disease (CAD) diagnosis, requires hospitalization, is not risk-free, and engages considerable healthcare resources. AIM To assess recent (throught out 10 years) evolution of 'significant' (≥ 50% stenosis(es)) CAD prevalence in subjects undergoing CAG for CAD diagnosis in a high-volume tertiary referral center. MATERIAL AND METHODS Anonymized medical records were compared for the last vs. the first 2-years of the decade (June 2007 to May 2018). Referrals for suspected CAD were 2067 of 4522 hospitalizations (45.7%) and 1755 of 5196 (33.8%) respectively (p < 0.001). RESULTS The median patient age (64 vs. 68 years) and the prevalence of heart failure (24.1% vs. 42.2%) increased significantly (p < 0.001). The CAG atherosclerotic lesions, for all stenosis categories (< 50%; ≥ 50%; ≥ 70%; occlusion(s)), were significantly more prevalent in men. The proportion of subjects with any atherosclerosis on CAG increased (80.7% vs. 77.6%, p = 0.015). However, in the absence of any gross change in, for instance, the fraction of women (40.4% vs. 41.8%), the proportion of CAGs with significant CAD (lesion(s) ≥ 50%) decreased from 55.2% in 2007/2008 to below 1 in every 2 angiograms (48.9%) in 2017/2018 (p < 0.001). This unexpected finding occurred consistently across nearly all CAG referral categories. CONCLUSIONS Despite more advanced age and a higher proportion of subjects with 'any' coronary atherosclerosis on CAG, the likelihood of a 'negative' angiogram (lesion(s) < 50%; no further evaluation/intervention) has increased significantly over the last decade. The exact nature of this phenomenon requires further investigation, particularly as a reverse trend would be expected with the growing role (and current high penetration) of contemporary non-invasive diagnostic tools to rule out significant CAD.
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Affiliation(s)
- Jakub Chmiel
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Miłosz K. Książek
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Weronika Stryszak
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Paweł Iwaszczuk
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Mateusz K. Hołda
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
- HEART – Heart Embryology and Anatomy Research Team, Department of Anatomy, Jagiellonian University Medical College, Kraków, Poland
| | - Grażyna Świtacz
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Artur Kozanecki
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Piotr Wilkołek
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Paweł Rubiś
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Grzegorz Kopeć
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Piotr Odrowąż-Pieniążek
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Tadeusz Przewłocki
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Wiesława Tracz
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Piotr Podolec
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
| | - Piotr Musiałek
- Department of Cardiac and Vascular Diseases, Jagiellonian University, John Paul II Hospital, Kraków, Poland
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Herscovici R, Sedlak T, Wei J, Pepine CJ, Handberg E, Bairey Merz CN. Ischemia and No Obstructive Coronary Artery Disease ( INOCA ): What Is the Risk? J Am Heart Assoc 2018; 7:e008868. [PMID: 30371178 PMCID: PMC6201435 DOI: 10.1161/jaha.118.008868] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Romana Herscovici
- Barbra Streisand Women's Heart CenterCedars‐Sinai Smidt Heart InstituteLos AngelesCA
| | - Tara Sedlak
- Vancouver General HospitalVancouverBritish ColumbiaCanada
| | - Janet Wei
- Barbra Streisand Women's Heart CenterCedars‐Sinai Smidt Heart InstituteLos AngelesCA
| | | | | | - C. Noel Bairey Merz
- Barbra Streisand Women's Heart CenterCedars‐Sinai Smidt Heart InstituteLos AngelesCA
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Azab M, Al-Shudifat AE, Johannessen A, Al-Shdaifat A, Agraib LM, Tayyem RF. Are Risk Factors for Coronary Artery Disease Different in Persons With and Without Obesity? Metab Syndr Relat Disord 2018; 16:440-445. [PMID: 30088947 DOI: 10.1089/met.2017.0152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Although obesity is an independent risk factor for coronary artery disease (CAD), observational studies have found that persons with obesity have a better prognosis in established CAD compared with those with a normal body weight, suggesting that the underlying risk factors might differ between the two groups. In this study, we studied risk factors for CAD in persons with and without obesity in a Middle Eastern setting where obesity is endemic. METHODS Five hundred and fifty-six patients referred for elective coronary catheterization at Prince Hamza Hospital, Amman were included in a cross-sectional study. Patients with CAD (n = 353; 63.5%) were compared to patients with a normal coronary angiography (n = 203; 36.5%). Associations between CAD and baseline variables were assessed in multivariate logistic regression models. RESULTS In persons with obesity, male sex [adjusted odds ratio (AOR) = 2.62, 95% confidence interval (CI): 1.37-4.99], increasing age (45-54 years: AOR = 5.00, 95% CI: 2.01-12.48; 55-64 years: AOR = 3.77, 95% CI: 1.39-10.23; ≥65 years: AOR = 13.87, 95% CI: 4.62-41.63), diabetes mellitus (AOR = 2.79, 95% CI: 1.49-5.22), and smoking (AOR = 2.25, 95% CI: 1.12-4.50) were strong and significant predictors of CAD. The same risk factors were identified in persons without obesity, but in addition, waist circumference (per 1 cm increment: AOR = 1.04, 95% CI: 1.01-1.07) was a significant predictor of CAD in this group. CONCLUSIONS Sex, age, diabetes mellitus, and smoking predicted CAD in all patients. Waist circumference only predicted CAD in persons without obesity, suggesting that normal-weight central obesity might be an important risk factor in this setting.
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Affiliation(s)
- Mohammed Azab
- 1 Department of Medical Basic Sciences, Faculty of Medicine, The Hashemite University , Zarqa, Jordan
| | - Abdel-Ellah Al-Shudifat
- 2 Department of Internal Medicine, Faculty of Medicine, The Hashemite University , Zarqa, Jordan
| | - Asgeir Johannessen
- 3 Centre for Imported and Tropical Diseases, Oslo University Hospital , Oslo, Norway
| | - Amjad Al-Shdaifat
- 2 Department of Internal Medicine, Faculty of Medicine, The Hashemite University , Zarqa, Jordan
| | - Lana M Agraib
- 4 Department of Nutrition and Food Technology, Faculty of Agriculture, University of Jordan , Amman, Jordan
| | - Reema F Tayyem
- 4 Department of Nutrition and Food Technology, Faculty of Agriculture, University of Jordan , Amman, Jordan
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Ouellette ML, Löffler AI, Beller GA, Workman VK, Holland E, Bourque JM. Clinical Characteristics, Sex Differences, and Outcomes in Patients With Normal or Near-Normal Coronary Arteries, Non-Obstructive or Obstructive Coronary Artery Disease. J Am Heart Assoc 2018; 7:JAHA.117.007965. [PMID: 29720503 PMCID: PMC6015317 DOI: 10.1161/jaha.117.007965] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background Normal or near‐normal coronary arteries (NNCAs) or nonobstructive coronary artery disease (CAD) are found on invasive coronary angiography in ≈55% of patients. Some attribute this to frequent referral of low‐risk patients. We sought to identify the referral indications, pretest risk, key clinical characteristics, sex, and outcomes in patients with NNCAs and nonobstructive CAD versus obstructive CAD on nonemergent invasive coronary angiography. Methods and Results Over 24 months, 925 consecutive patients were classified as having NNCAs (≤20% stenosis), nonobstructive CAD (21–49% stenosis), or obstructive CAD (≥50% stenosis). Outcomes included cardiac death, nonfatal myocardial infarction, and late revasclarization. NNCAs were found in 285 patients (31.0%), nonobstructive CAD in 125 (13.5%), and obstructive CAD in 513 (55.5%). NNCAs or nonobstructive CAD was found in 40.5% with stress ischemia, 27.9% after a non‐ST‐elevation myocardial infarction, and in 55.5% with stable or unstable angina. More women than men (53.5% versus 37.2%; P<0.001) had NNCAs or nonobstructive CAD across all referral indications. Pretest risk was high and ICA appropriate in 75.5% and 99.2% of patients, respectively. Annual rates of cardiac death or nonfatal myocardial infarction were 1.0%, 1.1%, and 6.7%, respectively, for patients with NNCAs, nonobstructive CAD, and obstructive CAD (P<0.001). No sex differences in outcomes were observed with either NNCAs, nonobstructive CAD, or obstructive CAD (P=0.84). Conclusions Many (44.5%) patients undergoing nonemergent invasive coronary angiography have NNCAs or nonobstructive CAD despite high pretest risk, including ischemia and troponin elevation. Although women had more NNCAs or nonobstructive CAD, there were no differences in event rates by sex. Patients with NNCAs and nonobstructive CAD had very low event rates.
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Affiliation(s)
- Michelle L Ouellette
- Cardiovascular Division and the Cardiovascular Imaging Center, Department of Medicine, University of Virginia Health System, Charlottesville, VA
| | - Adrián I Löffler
- Cardiovascular Division and the Cardiovascular Imaging Center, Department of Medicine, University of Virginia Health System, Charlottesville, VA
| | - George A Beller
- Cardiovascular Division and the Cardiovascular Imaging Center, Department of Medicine, University of Virginia Health System, Charlottesville, VA
| | - Virginia K Workman
- Cardiovascular Division and the Cardiovascular Imaging Center, Department of Medicine, University of Virginia Health System, Charlottesville, VA
| | - Eric Holland
- Cardiovascular Division and the Cardiovascular Imaging Center, Department of Medicine, University of Virginia Health System, Charlottesville, VA
| | - Jamieson M Bourque
- Cardiovascular Division and the Cardiovascular Imaging Center, Department of Medicine, University of Virginia Health System, Charlottesville, VA
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Borzi M, Intorcia A, Perrone MA, Grilli G, Sergi D, Borzi M, Romeo F. Ranolazine treatment in the heterogeneous symptomatic stable coronary artery disease population. J Cardiovasc Med (Hagerstown) 2018; 19:186-190. [DOI: 10.2459/jcm.0000000000000627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Al-Shudifat AE, Azab M, Johannessen A, Al-Shdaifat A, Agraib LM, Tayyem RF. Elevated fasting blood glucose, but not obesity, is associated with coronary artery disease in patients undergoing elective coronary angiography in a referral hospital in Jordan. Ann Saudi Med 2018; 38:111-117. [PMID: 29620544 PMCID: PMC6074363 DOI: 10.5144/0256-4947.2018.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Obesity and its metabolic complications are endemic in the Middle East, but the cardiovascular consequences are not well defined in local studies. OBJECTIVE To assess the association between fasting blood glucose (FBG), obesity and coronary artery disease (CAD) in Jordan. DESIGN A cross-sectional, hospital-based study. SETTING A referral hospital in Amman, Jordan. PATIENTS AND METHODS Patients with complete anthropomorphic data who were referred for elective coronary angiography were included in the analysis. Associations between CAD, FBG and obesity were assessed in multivariate logistic regression models, adjusting for known risk factors. MAIN OUTCOME MEASURE The presence of CAD. SAMPLE SIZE 434 subjects. RESULTS Only those who underwent coronary angiography and had complete anthropometric data were included in the study: 291 (67.1%) had CAD and 143 (32.9%) had a normal coronary angiogram.The mean body mass index, waist circumference and FBG of the study participants was 30.0 kg/m2, 106.0 cm and 8.8 mmol/L, respectively. The mean FBG was significantly higher in patients with CAD compared to those without CAD (9.5 vs. 7.3 mmol/L, P less than .001). Waist circumference was significantly higher in women with CAD compared to women without CAD (111.0 vs. 105.9 cm, P=.036), but no significant difference was observed in men. In a multivariate analysis, FBG was a strong and significant predictor of CAD; however, none of the measures of obesity were significantly associated with CAD. The findings were robust in a sensitivity analysis that excluded patients with known diabetes mellitus. CONCLUSIONS Elevated FBG, but not obesity, predicted CAD in a Middle Eastern population. Improved prevention, detection and management of type 2 diabetes should be a priority in this setting. LIMITATIONS The cross-sectional design cannot control for temporal changes in risk factors and/or reverse causation. CONFLICT OF INTEREST None.
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Affiliation(s)
- Abdel-Ellah Al-Shudifat
- Dr. Abdel-Ellah Al-Shudifat, Faculty of Medicine, Department of Internal Medicine,, The Hashemite University,, Zarqa, Jordan, T: +962 796004849, , ORCID: http://orcid.org/0000-0003-4829.0978
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Millan-Iturbe O, Sawaya FJ, Lønborg J, Chow DH, Bieliauskas G, Engstrøm T, Søndergaard L, De Backer O. Coronary artery disease, revascularization, and clinical outcomes in transcatheter aortic valve replacement: Real-world results from the East Denmark Heart Registry. Catheter Cardiovasc Interv 2017; 92:818-826. [DOI: 10.1002/ccd.27440] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 10/25/2017] [Accepted: 11/11/2017] [Indexed: 11/08/2022]
Affiliation(s)
| | - Fadi J. Sawaya
- The Heart Center, Rigshospitalet University Hospital; Copenhagen Denmark
| | - Jacob Lønborg
- The Heart Center, Rigshospitalet University Hospital; Copenhagen Denmark
| | - Danny H.F. Chow
- The Heart Center, Rigshospitalet University Hospital; Copenhagen Denmark
| | | | - Thomas Engstrøm
- The Heart Center, Rigshospitalet University Hospital; Copenhagen Denmark
| | - Lars Søndergaard
- The Heart Center, Rigshospitalet University Hospital; Copenhagen Denmark
| | - Ole De Backer
- The Heart Center, Rigshospitalet University Hospital; Copenhagen Denmark
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Oxner A, Elbaz-Greener G, Qui F, Masih S, Zivkovic N, Alnasser S, Cheema AN, Wijeysundera HC. Variations in Use of Optimal Medical Therapy in Patients With Nonobstructive Coronary Artery Disease: A Population-Based Study. J Am Heart Assoc 2017; 6:JAHA.117.007526. [PMID: 29151028 PMCID: PMC5721803 DOI: 10.1161/jaha.117.007526] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND There is a paucity of data on the need for optimal medical therapy (OMT) in nonobstructive coronary artery disease . We sought to understand if there was variation in the use of OMT between hospitals for patients with nonobstructive coronary artery disease, the factors associated with such variation, and its clinical consequences. METHODS AND RESULTS Using a population-level clinical registry in Ontario, Canada, we identified all patients >66 years undergoing coronary angiography for the indication of stable angina, who had nonobstructive coronary artery disease between November 1, 2010, and October 31, 2013. Hierarchical multivariable logistic models were developed to identify the factors associated with OMT use, with median odds ratio used to quantify the degree of variation between hospitals not explained by the modeled risk factors. Clinical outcomes of interest were all-cause mortality and rehospitalization, with follow-up until March 31, 2015. Our cohort consisted of 5413 patients, of whom 2554 (47.2%) were receiving OMT within 1 year. There was a 2-fold variation in OMT across hospitals (30.4%-61.8%). The variation between hospitals was fully explained by preangiography medication use (median odds ratio of 1.21 in the null model and 1.03 in the full model). There was no difference in risk-adjusted mortality (hazard ratio, 0.94; 95% confidence interval, 0.76-1.16); however, patients receiving OMT had a lower risk of all-cause hospital readmission (hazard ratio, 0.89; 95% confidence interval, 0.84-0.95). CONCLUSIONS There is wide variation in the use of OMT in patients with nonobstructive coronary artery disease, the major driver of which is differences in baseline medication use.
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Affiliation(s)
- Adam Oxner
- Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Gabby Elbaz-Greener
- Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Feng Qui
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Shannon Masih
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Nevena Zivkovic
- Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Sami Alnasser
- Division of Cardiology, St Michael's Hospital, Toronto, Ontario, Canada
| | - Asim N Cheema
- Division of Cardiology, St Michael's Hospital, Toronto, Ontario, Canada
| | - Harindra C Wijeysundera
- Division of Cardiology, Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada .,Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada.,Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
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Yannoutsos A, Ahouah M, Dreyfuss Tubiana C, Topouchian J, Safar ME, Blacher J. Aortic stiffness improves the prediction of both diagnosis and severity of coronary artery disease. Hypertens Res 2017; 41:118-125. [DOI: 10.1038/hr.2017.97] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 06/23/2017] [Accepted: 07/03/2017] [Indexed: 01/06/2023]
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Ventetuolo CE, Hess E, Austin ED, Barón AE, Klinger JR, Lahm T, Maddox TM, Plomondon ME, Thompson L, Zamanian RT, Choudhary G, Maron BA. Sex-based differences in veterans with pulmonary hypertension: Results from the veterans affairs-clinical assessment reporting and tracking database. PLoS One 2017; 12:e0187734. [PMID: 29121097 PMCID: PMC5679554 DOI: 10.1371/journal.pone.0187734] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 08/29/2017] [Indexed: 11/22/2022] Open
Abstract
Women have an increased risk of pulmonary hypertension (PH) but better survival compared to men. Few studies have explored sex-based differences in population-based cohorts with PH. We sought to determine whether sex was associated with hemodynamics and survival in US veterans with PH (mean pulmonary artery pressure [mPAP] ≥ 25 mm Hg) from the Veterans Affairs Clinical Assessment, Reporting, and Tracking database. The relationship between sex and hemodynamics was assessed with multivariable linear mixed modeling. Cox proportional hazards models were used to compare survival by sex for those with PH and precapillary PH (mPAP ≥ 25 mm Hg, pulmonary artery wedge pressure [PAWP] ≤ 15 mm Hg and pulmonary vascular resistance [PVR] > 3 Wood units) respectively. The study population included 15,464 veterans with PH, 516 (3%) of whom were women; 1,942 patients (13%) had precapillary PH, of whom 120 (6%) were women. Among those with PH, women had higher PVR and pulmonary artery pulse pressure, and lower right atrial pressure and PAWP (all p <0.001) compared with men. There were no significant differences in hemodynamics according to sex in veterans with precapillary PH. Women with PH had 18% greater survival compared to men with PH (adjusted HR 0.82, 95% CI 0.69-0.97, p = 0.020). Similarly, women with precapillary PH were 29% more likely to survive as compared to men with PH (adjusted HR 0.71, 95% CI 0.52-0.98, p = 0.040). In conclusion, female veterans with PH have better survival than males despite higher pulmonary afterload.
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Affiliation(s)
- Corey E. Ventetuolo
- Department of Medicine, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
- Department of Health Services, Policy and Practice, Brown University School of Public Health, Providence, Rhode Island, United States of America
| | - Edward Hess
- Veterans Affairs Eastern Colorado Health Care System, Denver, Colorado, United States of America
| | - Eric D. Austin
- Division of Pediatric Pulmonary, Allergy, and Immunology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Anna E. Barón
- Veterans Affairs Eastern Colorado Health Care System, Denver, Colorado, United States of America
| | - James R. Klinger
- Department of Medicine, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
| | - Tim Lahm
- Division of Pulmonary, Critical Care, Occupational and Sleep Medicine, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, Indiana, United States of America
| | - Thomas M. Maddox
- Veterans Affairs Eastern Colorado Health Care System, Denver, Colorado, United States of America
| | - Mary E. Plomondon
- Veterans Affairs Eastern Colorado Health Care System, Denver, Colorado, United States of America
| | - Lauren Thompson
- University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Roham T. Zamanian
- Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford University School of Medicine, Stanford, California, United States of America
| | - Gaurav Choudhary
- Department of Medicine, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
- Providence Veterans Affairs Medical Center, Providence, Rhode Island, United States of America
| | - Bradley A. Maron
- Boston Veterans Affairs Healthcare System, Boston, Massachusetts, United States of America
- Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
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Szpakowski N, Qiu F, Masih S, Kurdyak P, Wijeysundera HC. Economic Impact of Subsequent Depression in Patients With a New Diagnosis of Stable Angina: A Population-Based Study. J Am Heart Assoc 2017; 6:JAHA.117.006911. [PMID: 29021276 PMCID: PMC5721880 DOI: 10.1161/jaha.117.006911] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Depression is strongly linked to increased morbidity and mortality in patients with chronic stable angina; however, its associated healthcare costs have been less well studied. Our objective was to identify the characteristics of chronic stable patients found to have depression and to determine the impact of an occurrence of depression on healthcare costs within 1 year of a diagnosis of stable angina. Methods and Results In this population‐based study conducted in Ontario, Canada, we identified patients diagnosed with stable angina based on angiogram between October 1, 2008, and September 30, 2013. Depression was ascertained by physician billing codes and hospital admission diagnostic codes contained within administrative databases. The primary outcome was cumulative mean 1‐year healthcare costs following index angiogram. Generalized linear models were developed with a logarithmic link and γ distribution to determine predictors of cost. Our cohort included 22 917 patients with chronic stable angina. Patients with depression had significantly higher mean 1‐year healthcare costs ($32 072±$41 963) than patients without depression ($23 021±$25 741). After adjustment for baseline comorbidities, depression was found to be a significant independent predictor of cost, with a cost ratio of 1.33 (95% confidence interval, 1.29–1.37). Higher costs in depressed patients were seen in all healthcare sectors, including acute and ambulatory care. Conclusions Depression is an important driver of healthcare costs in patients following a diagnosis of chronic stable angina. Further research is needed to understand whether improvements in the approach to diagnosis and treatment of depression will translate to reduced expenditures in this population.
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Affiliation(s)
- Natalie Szpakowski
- Schulich Heart Centre, Division of Cardiology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Feng Qiu
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Shannon Masih
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Paul Kurdyak
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada.,Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Social and Epidemiological Research Department, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.,Department of Psychiatry and Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Harindra C Wijeysundera
- Schulich Heart Centre, Division of Cardiology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada .,Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada.,Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada.,Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
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Maddox TM, Albert NM, Borden WB, Curtis LH, Ferguson TB, Kao DP, Marcus GM, Peterson ED, Redberg R, Rumsfeld JS, Shah ND, Tcheng JE. The Learning Healthcare System and Cardiovascular Care: A Scientific Statement From the American Heart Association. Circulation 2017; 135:e826-e857. [DOI: 10.1161/cir.0000000000000480] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The learning healthcare system uses health information technology and the health data infrastructure to apply scientific evidence at the point of clinical care while simultaneously collecting insights from that care to promote innovation in optimal healthcare delivery and to fuel new scientific discovery. To achieve these goals, the learning healthcare system requires systematic redesign of the current healthcare system, focusing on 4 major domains: science and informatics, patient-clinician partnerships, incentives, and development of a continuous learning culture. This scientific statement provides an overview of how these learning healthcare system domains can be realized in cardiovascular disease care. Current cardiovascular disease care innovations in informatics, data uses, patient engagement, continuous learning culture, and incentives are profiled. In addition, recommendations for next steps for the development of a learning healthcare system in cardiovascular care are presented.
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Gunja A, Pandey Y, Xie H, Wolska BM, Shroff AR, Ardati AK, Vidovich MI. Image noise reduction technology reduces radiation in a radial-first cardiac catheterization laboratory. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2016; 18:197-201. [PMID: 28089778 DOI: 10.1016/j.carrev.2016.12.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/16/2016] [Accepted: 12/22/2016] [Indexed: 11/24/2022]
Abstract
BACKGROUND Transradial coronary angiography (TRA) has been associated with increased radiation doses. We hypothesized that contemporary image noise reduction technology would reduce radiation doses in the cardiac catheterization laboratory in a typical clinical setting. METHODS AND RESULTS We performed a single-center, retrospective analysis of 400 consecutive patients who underwent diagnostic and interventional cardiac catheterizations in a predominantly TRA laboratory with traditional fluoroscopy (N=200) and a new image noise reduction fluoroscopy system (N=200). The primary endpoint was radiation dose (mGy cm2). Secondary endpoints were contrast dose, fluoroscopy times, number of cineangiograms, and radiation dose by operator between the two study periods. Radiation was reduced by 44.7% between the old and new cardiac catheterization laboratory (75.8mGycm2±74.0 vs. 41.9mGycm2±40.7, p<0.0001). Radiation was reduced for both diagnostic procedures (45.9%, p<0.0001) and interventional procedures (37.7%, p<0.0001). There was no statistically significant difference in radiation dose between individual operators (p=0.84). In multivariate analysis, radiation dose remained significantly decreased with the use of the new system (p<0.0001) and was associated with weight (p<0.0001), previous coronary artery bypass grafting (p<0.0007) and greater than 3 stents used (p<0.0004). TRA was used in 90% of all cases in both periods. Compared with a transfemoral approach (TFA), TRA was not associated with higher radiation doses (p=0.20). CONCLUSIONS Image noise reduction technology significantly reduces radiation dose in a contemporary radial-first cardiac catheterization clinical practice.
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Affiliation(s)
- Ateka Gunja
- Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL; Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Yagya Pandey
- Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL; Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Hui Xie
- Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, IL; Faculty of Health Sciences, Simon Fraser University
| | - Beata M Wolska
- Department of Physiology and Biophysics, Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL
| | - Adhir R Shroff
- Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL; Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Amer K Ardati
- Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL; Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Mladen I Vidovich
- Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL; Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL.
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Chen C, Wei J, AlBadri A, Zarrini P, Bairey Merz CN. Coronary Microvascular Dysfunction - Epidemiology, Pathogenesis, Prognosis, Diagnosis, Risk Factors and Therapy. Circ J 2016; 81:3-11. [PMID: 27904032 PMCID: PMC8607842 DOI: 10.1253/circj.cj-16-1002] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Angina has traditionally been thought to be caused by obstructive coronary artery disease (CAD). However, a substantial number of patients with angina are found to not have obstructive CAD when undergoing coronary angiography. A significant proportion of these patients have coronary microvascular dysfunction (CMD), characterized by heightened sensitivity to vasoconstrictor stimuli and limited microvascular vasodilator capacity. With the advent of non-invasive and invasive techniques, the coronary microvasculature has been more extensively studied in the past 2 decades. CMD has been identified as a cause of cardiac ischemia, in addition to traditional atherosclerotic disease and vasospastic disease. CMD can occur alone or in the presence obstructive CAD. CMD shares many similar risk factors with macrovascular CAD. Diagnosis is achieved through detection of an attenuated response of coronary blood flow in response to vasodilatory agents. Imaging modalities such as cardiovascular magnetic resonance, positron emission tomography, and transthoracic Doppler echocardiography have become more widely used, but have not yet completely replaced the traditional intracoronary vasoreactivity testing. Treatment of CMD starts with lifestyle modification and risk factor control. The use of traditional antianginal, antiatherosclerotic medications and some novel agents may be beneficial; however, clinical trials are needed to assess the efficacy of the pharmacologic and non-pharmacologic therapeutic modalities. In addition, studies with longer-term follow-up are needed to determine the prognostic benefits of these agents. We review the epidemiology, prognosis, pathogenesis, diagnosis, risk factors and current therapies for CMD.
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Affiliation(s)
- Cheng Chen
- Barbra Streisand Women's Heart Center, Cedars-Sinai Heart Institute, Cedars-Sinai Medical Center
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Fordyce CB, Newby DE, Douglas PS. Diagnostic Strategies for the Evaluation of Chest Pain: Clinical Implications From SCOT-HEART and PROMISE. J Am Coll Cardiol 2016; 67:843-52. [PMID: 26892420 DOI: 10.1016/j.jacc.2015.11.055] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 11/02/2015] [Accepted: 11/12/2015] [Indexed: 11/17/2022]
Abstract
SCOT-HEART (Scottish COmputed Tomography of the HEART) and PROMISE (PROspective Multicenter Imaging Study for Evaluation of chest pain) represent the 2 largest and most comprehensive cardiovascular imaging outcome trials in patients with stable chest pain and provide significant insights into patient diagnosis, management, and outcomes. These trials are particularly timely, given the well-recognized knowledge gaps and widespread use of noninvasive imaging. The overall goal of this review is to distill the data generated from these 2 pivotal trials to better inform the practicing clinician in the selection of noninvasive testing for stable chest pain. Similarities and differences between SCOT-HEART and PROMISE are highlighted, and clinical and practical implications are discussed. Both trials show that coronary computed tomography angiography should have a greater role in the diagnostic pathway of patients with stable chest pain.
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Affiliation(s)
| | - David E Newby
- British Heart Foundation/University of Edinburgh Centre for Cardiovascular Science, Edinburgh, United Kingdom
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He Y, Pang J, Dai Q, Fan Z, An J, Li D. Diagnostic Performance of Self-navigated Whole-Heart Contrast-enhanced Coronary 3-T MR Angiography. Radiology 2016; 281:401-408. [PMID: 27192461 DOI: 10.1148/radiol.2016152514] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Purpose To evaluate the diagnostic performance of self-navigated whole-heart coronary 3-T magnetic resonance (MR) angiography by using conventional invasive coronary angiography (ICA) as the reference gold standard. Materials and Methods This study was approved by the local ethics committee. Written informed consent was obtained from each patient before the study. Thirty-nine consecutive patients underwent coronary MR angiography and later underwent ICA. Coronary MR angiography was performed with a 3-T imager with contrast agent enhancement during free breathing with self-navigated affine motion correction reconstruction. Coronary segments with reference diameters larger than 1.5 mm were included in the comparison between coronary MR angiography and ICA. The coronary MR angiography images were evaluated by two experienced readers blinded to the ICA results to identify significant luminal narrowing (>50% diameter reduction in reference ICA). Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were performed to detect significant coronary artery stenosis. Results Coronary MR angiography examinations were successfully performed in all 39 patients. A total of 327 coronary segments had reference luminal diameter larger than 1.5 mm. Of these 327 coronary segments, 303 (92.7%) segments had a quality score greater than 1 at coronary MR angiography and were included in the analysis. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 78.2%, 75.0%, 81.8%, 70.6%, and 76.9%, respectively, on a per-patient basis. Conclusion Contrast-enhanced self-navigated coronary 3-T MR angiography is a promising technique for the noninvasive detection of clinically significant coronary stenosis. © RSNA, 2016.
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Affiliation(s)
- Yi He
- From the Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Rd, Chaoyang District, Beijing, China 100029 (Y.H., Q.D., Z.F.); Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, Calif (J.P., D.L.); and MR Collaboration NE Asia, Siemens Shenzhen Magnetic Resonance, Shanghai, China (J.A.)
| | - Jianing Pang
- From the Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Rd, Chaoyang District, Beijing, China 100029 (Y.H., Q.D., Z.F.); Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, Calif (J.P., D.L.); and MR Collaboration NE Asia, Siemens Shenzhen Magnetic Resonance, Shanghai, China (J.A.)
| | - Qinyi Dai
- From the Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Rd, Chaoyang District, Beijing, China 100029 (Y.H., Q.D., Z.F.); Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, Calif (J.P., D.L.); and MR Collaboration NE Asia, Siemens Shenzhen Magnetic Resonance, Shanghai, China (J.A.)
| | - Zhanming Fan
- From the Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Rd, Chaoyang District, Beijing, China 100029 (Y.H., Q.D., Z.F.); Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, Calif (J.P., D.L.); and MR Collaboration NE Asia, Siemens Shenzhen Magnetic Resonance, Shanghai, China (J.A.)
| | - Jing An
- From the Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Rd, Chaoyang District, Beijing, China 100029 (Y.H., Q.D., Z.F.); Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, Calif (J.P., D.L.); and MR Collaboration NE Asia, Siemens Shenzhen Magnetic Resonance, Shanghai, China (J.A.)
| | - Debiao Li
- From the Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Rd, Chaoyang District, Beijing, China 100029 (Y.H., Q.D., Z.F.); Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, Calif (J.P., D.L.); and MR Collaboration NE Asia, Siemens Shenzhen Magnetic Resonance, Shanghai, China (J.A.)
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Angiolillo DJ, Franchi F. Defining a Role for Prasugrel in Patients With Stable Coronary Artery Disease Undergoing Ad Hoc Percutaneous Coronary Intervention. JACC Cardiovasc Interv 2016; 9:228-230. [PMID: 26777325 DOI: 10.1016/j.jcin.2015.11.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 11/18/2015] [Indexed: 11/25/2022]
Affiliation(s)
- Dominick J Angiolillo
- Department of Medicine, Division of Cardiology, University of Florida College of Medicine-Jacksonville, Jacksonville, Florida.
| | - Francesco Franchi
- Department of Medicine, Division of Cardiology, University of Florida College of Medicine-Jacksonville, Jacksonville, Florida
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Marinescu MA, Löffler AI, Ouellette M, Smith L, Kramer CM, Bourque JM. Coronary microvascular dysfunction, microvascular angina, and treatment strategies. JACC Cardiovasc Imaging 2015; 8:210-20. [PMID: 25677893 DOI: 10.1016/j.jcmg.2014.12.008] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/16/2014] [Accepted: 12/22/2014] [Indexed: 02/07/2023]
Abstract
Angina without coronary artery disease (CAD) has substantial morbidity and is present in 10% to 30% of patients undergoing angiography. Coronary microvascular dysfunction (CMD) is present in 50% to 65% of these patients. The optimal treatment of this cohort is undefined. We performed a systematic review to evaluate treatment strategies for objectively-defined CMD in the absence of CAD. We included studies assessing therapy in human subjects with angina and coronary flow reserve or myocardial perfusion reserve <2.5 by positron emission tomography, cardiac magnetic resonance imaging, dilution methods, or intracoronary Doppler in the absence of coronary artery stenosis ≥50% or structural heart disease. Only 8 papers met the strict inclusion criteria. The papers were heterogeneous, using different treatments, endpoints, and definitions of CMD. The small sample sizes severely limit the power of these studies, with an average of 11 patients per analysis. Studies evaluating sildenafil, quinapril, estrogen, and transcutaneous electrical nerve stimulation application demonstrated benefits in their respective endpoints. No benefit was found with L-arginine, doxazosin, pravastatin, and diltiazem. Our systematic review highlights that there is little data to support therapies for CMD. We assess the data meeting rigorous inclusion criteria and review the related but excluded published data. We additionally describe the next steps needed to address this research gap, including a standardized definition of CMD, routine assessment of CMD in studies of chest pain without obstructive CAD, and specific therapy assessment in the population with confirmed CMD.
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Affiliation(s)
- Mark A Marinescu
- Department of Medicine, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia
| | - Adrián I Löffler
- Department of Medicine, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia
| | - Michelle Ouellette
- Department of Medicine, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia
| | - Lavone Smith
- Department of Medicine, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia
| | - Christopher M Kramer
- Department of Medicine, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia; Department of Radiology and Medical Imaging, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia
| | - Jamieson M Bourque
- Department of Medicine, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia; Department of Radiology and Medical Imaging, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia.
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Wasfy JH, Hidrue MK, Yeh RW, Armstrong K, Dec GW, Pomerantsev EV, Fifer MA, Ferris TG. Differences Among Cardiologists in Rates of Positive Coronary Angiograms. J Am Heart Assoc 2015; 4:e002393. [PMID: 26475298 PMCID: PMC4845144 DOI: 10.1161/jaha.115.002393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background Understanding the sources of variation for high‐cost services has the potential to improve both patient outcomes and value in health care delivery. Nationally, the overall diagnostic yield of coronary angiography is relatively low, suggesting overutilization. Understanding how individual cardiologists request catheterization may suggest opportunities for improving quality and value. We aimed to assess and explain variation in positive angiograms among referring cardiologists. Methods and Results We identified all cases of diagnostic coronary angiography at Massachusetts General Hospital from January 1, 2012, to June 30, 2013. We excluded angiograms for acute coronary syndrome. For each angiogram, we identified clinical features of the patients and characteristics of the requesting cardiologists. We also identified angiogram positivity, defined as at least 1 epicardial coronary stenosis ≥50% luminal narrowing. We then constructed a series of mixed‐effects logistic regression models to analyze predictors of positive coronary angiograms. We assessed variation by physician in the models with median odds ratios. Over this time period, 5015 angiograms were identified. We excluded angiograms ordered by cardiologists requesting <10 angiograms. Among the remaining 2925 angiograms, 1450 (49.6%) were positive. Significant predictors of positive angiograms included age, male patients, and peripheral arterial disease. After adjustment for clinical variables only, the median odds ratio was 1.23 (95% CI 1.0–1.36), consistent with only borderline clinical variation after adjustment. In the full clinical and nonclinical model, the median odds ratio was 1.07 (95% CI 1.07–1.20), also consistent with clinically insignificant variation. Conclusions Substantial variation exists among requesting cardiologists with respect to positive and negative coronary angiograms. After adjustment for clinical variables, there was only borderline clinically significant variation. These results emphasize the importance of risk adjustment in reporting related to quality and value.
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Affiliation(s)
- Jason H Wasfy
- Massachusetts General Physicians Organization, Harvard Medical School, Boston, MA (J.H.W., M.K.H., T.G.F.) Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA (J.H.W., R.W.Y., W.D., E.V.P., M.A.F.)
| | - Michael K Hidrue
- Massachusetts General Physicians Organization, Harvard Medical School, Boston, MA (J.H.W., M.K.H., T.G.F.)
| | - Robert W Yeh
- Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA (J.H.W., R.W.Y., W.D., E.V.P., M.A.F.)
| | - Katrina Armstrong
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA (K.A., T.G.F.)
| | - G William Dec
- Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA (J.H.W., R.W.Y., W.D., E.V.P., M.A.F.)
| | - Eugene V Pomerantsev
- Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA (J.H.W., R.W.Y., W.D., E.V.P., M.A.F.)
| | - Michael A Fifer
- Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA (J.H.W., R.W.Y., W.D., E.V.P., M.A.F.)
| | - Timothy G Ferris
- Massachusetts General Physicians Organization, Harvard Medical School, Boston, MA (J.H.W., M.K.H., T.G.F.) Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA (K.A., T.G.F.) Partners Healthcare, Boston, MA (T.G.F.)
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Facility-Level Variation in Hospitalization, Mortality, and Costs in the 30 Days After Percutaneous Coronary Intervention. Circulation 2015; 132:101-8. [DOI: 10.1161/circulationaha.115.015351] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 05/01/2015] [Indexed: 11/16/2022]
Abstract
Background—
Policies to reduce unnecessary hospitalizations after percutaneous coronary intervention (PCI) are intended to improve healthcare value by reducing costs while maintaining patient outcomes. Whether facility-level hospitalization rates after PCI are associated with cost of care is unknown.
Methods and Results—
We studied 32 080 patients who received PCI at any 1 of 62 Veterans Affairs hospitals from 2008 to 2011. We identified facility outliers for 30-day risk-standardized hospitalization, mortality, and cost. Compared with the risk-standardized average, 2 hospitals (3.2%) had a lower-than-expected hospitalization rate, and 2 hospitals (3.2%) had a higher-than-expected hospitalization rate. We observed no statistically significant variation in facility-level risk-standardized mortality. The facility-level unadjusted median per patient 30-day total cost was $23 820 (interquartile range, $19 604–$29 958). Compared with the risk-standardized average, 17 hospitals (27.4%) had lower-than-expected costs, and 14 hospitals (22.6%) had higher-than-expected costs. At the facility level, the index PCI accounted for 83.1% of the total cost (range, 60.3%–92.2%), whereas hospitalization after PCI accounted for only 5.8% (range, 2.0%–12.7%) of the 30-day total cost. Facilities with higher hospitalization rates were not more expensive (Spearman ρ=0.16; 95% confidence interval, −0.09 to 0.39;
P
=0.21).
Conclusions—
In this national study, hospitalizations in the 30 day after PCI accounted for only 5.8% of 30-day cost, and facility-level cost was not correlated with hospitalization rates. This challenges the focus on reducing hospitalizations after PCI as an effective means of improving healthcare value. Opportunities remain to improve PCI value by reducing the variation in total cost of PCI without compromising patient outcomes.
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