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Xu X, Divakaran S, Weber BN, Hainer J, Laychak SS, Auer B, Kijewski MF, Blankstein R, Dorbala S, Trinquart L, Slomka PJ, Zhang L, Brown JM, Di Carli MF. Relationship of Subendocardial Perfusion to Myocardial Injury, Cardiac Structure, and Clinical Outcomes Among Patients With Hypertension. Circulation 2024; 150:1075-1086. [PMID: 39166326 DOI: 10.1161/circulationaha.123.067083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 07/29/2024] [Indexed: 08/22/2024]
Abstract
BACKGROUND Coronary microvascular dysfunction has been implicated in the development of hypertensive heart disease and heart failure, with subendocardial ischemia identified as a driver of sustained myocardial injury and fibrosis. We aimed to evaluate the relationships of subendocardial perfusion with cardiac injury, structure, and a composite of major adverse cardiac and cerebrovascular events consisting of death, heart failure hospitalization, myocardial infarction, and stroke. METHODS Layer-specific blood flow and myocardial flow reserve (MFR; stress/rest myocardial blood flow) were assessed by 13N-ammonia perfusion positron emission tomography in consecutive patients with hypertension without flow-limiting coronary artery disease (summed stress score <3) imaged at Brigham and Women's Hospital (Boston, MA) from 2015 to 2021. In this post hoc observational study, biomarkers, echocardiographic parameters, and longitudinal clinical outcomes were compared by tertiles of subendocardial MFR (MFRsubendo). RESULTS Among 358 patients, the mean age was 70.6±12.0 years, and 53.4% were male. The median MFRsubendo was 2.57 (interquartile range, 2.08-3.10), and lower MFRsubendo was associated with older age, diabetes, lower renal function, greater coronary calcium burden, and higher systolic blood pressure (P<0.05 for all). In cross-sectional multivariable regression analyses, the lowest tertile of MFRsubendo was associated with myocardial injury and with greater left ventricular wall thickness and volumes compared with the highest tertile. Relative to the highest tertile, low MFRsubendo was independently associated with an increased rate of major adverse cardiac and cerebrovascular events (adjusted hazard ratio, 2.99 [95% CI, 1.39-6.44]; P=0.005) and heart failure hospitalization (adjusted hazard ratio, 2.76 [95% CI, 1.04-7.32; P=0.042) over 1.1 (interquartile range, 0.6-2.8) years median follow-up. CONCLUSIONS Among patients with hypertension without flow-limiting coronary artery disease, impaired MFRsubendo was associated with cardiovascular risk factors, elevated cardiac biomarkers, cardiac structure, and clinical events.
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Affiliation(s)
- Xiaolei Xu
- Zhejiang University School of Medicine, Hangzhou, China (X.X., L.Z.)
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of Cardiology, and Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China (X.X., L.Z.)
| | - Sanjay Divakaran
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Heart and Vascular Center, Division of Cardiovascular Medicine, Department of Medicine (S. Divakaran, B.N.W., R.B., J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Brittany N Weber
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Heart and Vascular Center, Division of Cardiovascular Medicine, Department of Medicine (S. Divakaran, B.N.W., R.B., J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Jon Hainer
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Shelby S Laychak
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Benjamin Auer
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Marie Foley Kijewski
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Ron Blankstein
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Heart and Vascular Center, Division of Cardiovascular Medicine, Department of Medicine (S. Divakaran, B.N.W., R.B., J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Sharmila Dorbala
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Ludovic Trinquart
- Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA (L.T.)
- Tufts Clinical and Translational Science Institute, Tufts University, Boston, MA (L.T.)
| | - Piotr J Slomka
- Division of Artificial Intelligence, Department of Medicine, Cedars-Sinai, Los Angeles, CA (P.S.)
| | - Li Zhang
- Zhejiang University School of Medicine, Hangzhou, China (X.X., L.Z.)
- Department of Cardiology, and Institute for Developmental and Regenerative Cardiovascular Medicine, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China (X.X., L.Z.)
| | - Jenifer M Brown
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Heart and Vascular Center, Division of Cardiovascular Medicine, Department of Medicine (S. Divakaran, B.N.W., R.B., J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Marcelo F Di Carli
- Cardiovascular Imaging Program, Departments of Medicine and Radiology (X.X., S. Divakaran, B.N.W., J.H., S.S.L., B.A., M.F.K., R.B., S. Dorbala, J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Heart and Vascular Center, Division of Cardiovascular Medicine, Department of Medicine (S. Divakaran, B.N.W., R.B., J.M.B., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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Vatsa N, Dave E, Higgins M, Huang J, Desai SR, Gold DA, Gold ME, Jain V, Fatade YK, Rahbar A, Kimble LP, Ko YA, Sperling LS, Quyyumi AA, Mehta PK. Patients With Nonobstructive Coronary Artery Disease and Chest Pain: Impact of Obesity and Depressive Symptoms. J Am Heart Assoc 2024; 13:e031429. [PMID: 39344631 DOI: 10.1161/jaha.123.031429] [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: 06/21/2023] [Accepted: 08/13/2024] [Indexed: 10/01/2024]
Abstract
BACKGROUND Chest pain (CP) in patients with nonobstructive coronary artery disease is a therapeutic challenge affecting morbidity and mortality. We aimed to identify clinical factors associated with CP in this population, hypothesizing that obesity and depressive symptoms are associated with CP. METHODS AND RESULTS In 814 patients with angiographically confirmed nonobstructive coronary artery disease, we measured sociodemographic variables, clinical risk factors, medications, and Patient Health Questionnaire 9 scores for depressive symptoms. We assessed CP frequency and prevalence by using all items from the Seattle Angina Questionnaire angina frequency domain to generate an angina frequency composite score. In the overall sample (58.8±11.7 years old, 52.6% female), 42.8% had obesity, and 71.5% had CP, with an angina frequency composite score (SD) score of 76.4 (22.1). Compared with individuals without obesity, individuals with obesity had a higher prevalence (77.6% versus 67%, P<0.001) and more frequent CP (angina frequency composite score, 74.9 [SD, 22.2] versus 78.3 [SD, 21.9], P=0.02). Obesity was independently associated with CP occurrence (odds ratio [OR], 1.7 [95% CI, 1-2.9], P=0.04). Obesity's connection with CP was only in men: men with obesity had more frequent CP (angina frequency composite score, 75.8 [SD, 20.1] versus 82.1 [SD, 19.9], P=0.002) and more prevalent CP (79.5% versus 58.2%, P<0.001) than their counterparts insofar as men with obesity had similar CP to women. Patient Health Questionnaire 9 score (OR, 1.07 [95% CI, 1.01-1.13], P=0.03) was independently associated with CP and partly mediated the association between obesity and CP. CONCLUSIONS Obesity and depressive symptoms were independently associated with CP in individuals with nonobstructive coronary artery disease, particularly in men, and depressive symptoms partly mediated this association.
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Affiliation(s)
- Nishant Vatsa
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Esha Dave
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Melinda Higgins
- Nell Hodgson Woodruff School of Nursing Emory University Atlanta GA USA
| | - Jingwen Huang
- J Willis Hurst Internal Medicine Residency Program, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Shivang R Desai
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Daniel A Gold
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Matthew E Gold
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Vardhmaan Jain
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Yetunde K Fatade
- J Willis Hurst Internal Medicine Residency Program, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Alireza Rahbar
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Laura P Kimble
- Nell Hodgson Woodruff School of Nursing Emory University Atlanta GA USA
| | - Yi-An Ko
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health Emory University Atlanta GA USA
| | - Laurence S Sperling
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Arshed A Quyyumi
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
| | - Puja K Mehta
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA USA
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Vrints C, Andreotti F, Koskinas KC, Rossello X, Adamo M, Ainslie J, Banning AP, Budaj A, Buechel RR, Chiariello GA, Chieffo A, Christodorescu RM, Deaton C, Doenst T, Jones HW, Kunadian V, Mehilli J, Milojevic M, Piek JJ, Pugliese F, Rubboli A, Semb AG, Senior R, Ten Berg JM, Van Belle E, Van Craenenbroeck EM, Vidal-Perez R, Winther S. 2024 ESC Guidelines for the management of chronic coronary syndromes. Eur Heart J 2024; 45:3415-3537. [PMID: 39210710 DOI: 10.1093/eurheartj/ehae177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
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Poirier P. Impact of Bariatric Surgery on Coronary Microvascular Function: When Lower Weight Means Better Flow! JACC Cardiovasc Imaging 2024:S1936-878X(24)00348-6. [PMID: 39365238 DOI: 10.1016/j.jcmg.2024.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Accepted: 08/07/2024] [Indexed: 10/05/2024]
Affiliation(s)
- Paul Poirier
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Canada; Laval University, Faculty of Pharmacy, Quebec, Canada.
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Dimitriadis K, Pyrpyris N, Sakalidis A, Dri E, Iliakis P, Tsioufis P, Tatakis F, Beneki E, Fragkoulis C, Aznaouridis K, Tsioufis K. ANOCA updated: From pathophysiology to modern clinical practice. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2024:S1553-8389(24)00672-9. [PMID: 39341735 DOI: 10.1016/j.carrev.2024.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2024] [Revised: 09/03/2024] [Accepted: 09/18/2024] [Indexed: 10/01/2024]
Abstract
Lately, a large number of stable ischemic patients, with no obstructed coronary arteries are being diagnosed. Despite this condition, which is being described as angina with no obstructive coronary arteries (ANOCA), was thought to be benign, recent evidence report that it is associated with increased risk for adverse cardiovascular outcomes. ANOCA is more frequent in women and, pathophysiologically, it is predominantly related with microvascular dysfunction, while other factors, such as endothelial dysfunction, inflammation and autonomic nervous system seem to also play a major role to its development, while other studies implicate ANOCA and microvascular dysfunction in the pathogenesis of heart failure with preserved ejection fraction. For establishing an ANOCA diagnosis, measurement including coronary flow reserve (CFR), microvascular resistance (IMR) and hyperemic microvascular resistance (HMR) are mostly used in clinical practice. In addition, new modalities, such as optical coherence tomography (OCT) are being tested and show promising results for future diagnostic use. Regarding management, pharmacotherapy consists of a wide selection of drugs, according to the respected pathophysiology of the disease (vasospastic angina or microvascular dysfunction), while research for new treatment options including interventional techniques, is currently ongoing. This review, therefore, aims to provide a comprehensive analysis of all aspects related to ANOCA, from pathophysiology to clinical managements, as well as clinical implications and suggestions for future research efforts, which will help advance our understanding of the syndrome and establish more, evidence-based, therapies.
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Affiliation(s)
- Kyriakos Dimitriadis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece.
| | - Nikolaos Pyrpyris
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Athanasios Sakalidis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Eirini Dri
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Panagiotis Iliakis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Panagiotis Tsioufis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Fotis Tatakis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Eirini Beneki
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Christos Fragkoulis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Konstantinos Aznaouridis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Konstantinos Tsioufis
- First Department of Cardiology, School of Medicine, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
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Liang KW, Sheu WHH, Lee WJ, Wang JS, Lee WL. Higher fasting glucose is associated with poorer survival in non-diabetic subjects having ischemia with non-obstructive coronary arteries. Sci Rep 2024; 14:20681. [PMID: 39237714 PMCID: PMC11377422 DOI: 10.1038/s41598-024-71796-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 08/30/2024] [Indexed: 09/07/2024] Open
Abstract
Subjects who have ischemia with non-obstructive coronary arteries (INOCA) experience angina pectoris with evidence of myocardial ischemia but without coronary stenosis. Few studies have investigated factors associated with its survival, especially insulin resistance. In this study, subjects with angina pectoris, without known diabetes mellites (DM), and with non-invasive tests showing myocardial ischemia were admitted for coronary angiography (CAG). Those whose CAG did not reveal stenosis and agreed to receive an oral glucose tolerance test (OGTT) 2 weeks after hospital discharge were enrolled for analysis. All-cause mortality was recorded, which served as the outcome of the study. A total of 587 subjects with INOCA, without known DM, and with OGTT data were analyzed. After OGTT and HbA1c tests, 86 subjects (14.7%) were newly diagnosed with DM and 59.8% had pre-DM. The median duration of follow-up was 7.03 years. Thirty-nine subjects died during the follow-up period. The incidence rate of mortality was 9.9 /1000 person-year. Those who died had a higher fasting glucose (101 ± 17 vs. 94 ± 13 mg/dl, p = 0.003) but a lower estimated glomerular filtration rate (eGFR) (54 ± 22 vs. 87 ± 30 ml/min, p < 0.001). In the Cox survival analysis, a higher fasting glucose (hazard ratio 1.053, p = 0.007) was associated with worse mortality for INOCA without DM (N = 501). On the contrary, a higher eGFR (hazard ratio 0.967, p = 0.012) was protective of better survival for non-diabetic INOCA (N = 501). In conclusion, for non-diabetic INOCA, higher fasting glucose was associated with worse mortality and higher eGFR was protective for better survival.
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Affiliation(s)
- Kae-Woei Liang
- Cardiovascular Center, Taichung Veterans General Hospital, 1650 Taiwan Boulevard, Sect. 4, Taichung, 40705, Taiwan.
- Department of Post-Baccalaureate Medicine, College of Medicine, and Program in Translational Medicine, College of Life Science, National Chung Hsing University, Taichung, Taiwan.
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Wayne H-H Sheu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Wen-Jane Lee
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jun-Sing Wang
- Department of Post-Baccalaureate Medicine, College of Medicine, and Program in Translational Medicine, College of Life Science, National Chung Hsing University, Taichung, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wen-Lieng Lee
- Cardiovascular Center, Taichung Veterans General Hospital, 1650 Taiwan Boulevard, Sect. 4, Taichung, 40705, Taiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, and Program in Translational Medicine, College of Life Science, National Chung Hsing University, Taichung, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
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7
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Koskinas KC, Van Craenenbroeck EM, Antoniades C, Blüher M, Gorter TM, Hanssen H, Marx N, McDonagh TA, Mingrone G, Rosengren A, Prescott EB. Obesity and cardiovascular disease: an ESC clinical consensus statement. Eur J Prev Cardiol 2024:zwae279. [PMID: 39210708 DOI: 10.1093/eurjpc/zwae279] [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: 05/14/2024] [Revised: 07/08/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024]
Abstract
The global prevalence of obesity has more than doubled over the past four decades, currently affecting more than a billion individuals. Beyond its recognition as a high-risk condition that is causally linked to many chronic illnesses, obesity has been declared a disease per se that results in impaired quality of life and reduced life expectancy. Notably, two-thirds of obesity-related excess mortality is attributable to cardiovascular disease. Despite the increasingly appreciated link between obesity and a broad range of cardiovascular disease manifestations including atherosclerotic disease, heart failure, thromboembolic disease, arrhythmias, and sudden cardiac death, obesity has been underrecognized and sub-optimally addressed compared with other modifiable cardiovascular risk factors. In the view of major repercussions of the obesity epidemic on public health, attention has focused on population-based and personalized approaches to prevent excess weight gain and maintain a healthy body weight from early childhood and throughout adult life, as well as on comprehensive weight loss interventions for persons with established obesity. This clinical consensus statement by the European Society of Cardiology discusses current evidence on the epidemiology and aetiology of obesity; the interplay between obesity, cardiovascular risk factors and cardiac conditions; the clinical management of patients with cardiac disease and obesity; and weight loss strategies including lifestyle changes, interventional procedures, and anti-obesity medications with particular focus on their impact on cardiometabolic risk and cardiac outcomes. The document aims to raise awareness on obesity as a major risk factor and provide guidance for implementing evidence-based practices for its prevention and optimal management within the context of primary and secondary cardiovascular disease prevention.
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Affiliation(s)
- Konstantinos C Koskinas
- Department of Cardiology, Bern University Hospital-INSELSPITAL, University of Bern, Freiburgstrasse 18, Bern 3010, Switzerland
| | - Emeline M Van Craenenbroeck
- Department of Cardiology, Antwerp University Hospital, Drie Eikenstraat 655, Antwerp 2650, Belgium
- Research group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium
| | - Charalambos Antoniades
- Acute Multidisciplinary Imaging and Interventional Centre Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Matthias Blüher
- Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany
| | - Thomas M Gorter
- Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
| | - Henner Hanssen
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Nikolaus Marx
- Department of Internal Medicine I-Cardiology, RWTH Aachen University, Aachen, Germany
| | - Theresa A McDonagh
- Cardiology Department, King's College Hospital, London, UK
- King's College, London, UK
| | - Geltrude Mingrone
- Cardiovascular and Metabolic Medicine & Sciences, King's College London, London, UK
- Department of Medical and Surgical Sciences, Fondazione Policlinico Universitario A. Gemelli & Catholic University, Rome, Italy
| | - Annika Rosengren
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska University Hospital/Ostra, Västra Götaland Region, Gothenburg, Sweden
| | - Eva B Prescott
- Bispebjerg Frederiksberg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
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8
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Koskinas KC, Van Craenenbroeck EM, Antoniades C, Blüher M, Gorter TM, Hanssen H, Marx N, McDonagh TA, Mingrone G, Rosengren A, Prescott EB. Obesity and cardiovascular disease: an ESC clinical consensus statement. Eur Heart J 2024:ehae508. [PMID: 39210706 DOI: 10.1093/eurheartj/ehae508] [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: 05/14/2024] [Revised: 07/08/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024] Open
Abstract
The global prevalence of obesity has more than doubled over the past four decades, currently affecting more than a billion individuals. Beyond its recognition as a high-risk condition that is causally linked to many chronic illnesses, obesity has been declared a disease per se that results in impaired quality of life and reduced life expectancy. Notably, two-thirds of obesity-related excess mortality is attributable to cardiovascular disease. Despite the increasingly appreciated link between obesity and a broad range of cardiovascular disease manifestations including atherosclerotic disease, heart failure, thromboembolic disease, arrhythmias, and sudden cardiac death, obesity has been underrecognized and sub-optimally addressed compared with other modifiable cardiovascular risk factors. In the view of major repercussions of the obesity epidemic on public health, attention has focused on population-based and personalized approaches to prevent excess weight gain and maintain a healthy body weight from early childhood and throughout adult life, as well as on comprehensive weight loss interventions for persons with established obesity. This clinical consensus statement by the European Society of Cardiology discusses current evidence on the epidemiology and aetiology of obesity; the interplay between obesity, cardiovascular risk factors and cardiac conditions; the clinical management of patients with cardiac disease and obesity; and weight loss strategies including lifestyle changes, interventional procedures, and anti-obesity medications with particular focus on their impact on cardiometabolic risk and cardiac outcomes. The document aims to raise awareness on obesity as a major risk factor and provide guidance for implementing evidence-based practices for its prevention and optimal management within the context of primary and secondary cardiovascular disease prevention.
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Affiliation(s)
- Konstantinos C Koskinas
- Department of Cardiology, Bern University Hospital-INSELSPITAL, University of Bern, Freiburgstrasse 18, Bern 3010, Switzerland
| | - Emeline M Van Craenenbroeck
- Department of Cardiology, Antwerp University Hospital, Drie Eikenstraat 655, Antwerp 2650, Belgium
- Research group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium
| | - Charalambos Antoniades
- Acute Multidisciplinary Imaging and Interventional Centre Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Matthias Blüher
- Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany
| | - Thomas M Gorter
- Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
| | - Henner Hanssen
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Nikolaus Marx
- Department of Internal Medicine I-Cardiology, RWTH Aachen University, Aachen, Germany
| | - Theresa A McDonagh
- Cardiology Department, King's College Hospital, London, UK
- King's College, London, UK
| | - Geltrude Mingrone
- Cardiovascular and Metabolic Medicine & Sciences, King's College London, London, UK
- Department of Medical and Surgical Sciences, Fondazione Policlinico Universitario A. Gemelli & Catholic University, Rome, Italy
| | - Annika Rosengren
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska University Hospital/Ostra, Västra Götaland Region, Gothenburg, Sweden
| | - Eva B Prescott
- Bispebjerg Frederiksberg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen 2400, Denmark
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Lembo M, Strisciuglio T, Fonderico C, Mancusi C, Izzo R, Trimarco V, Bellis A, Barbato E, Esposito G, Morisco C, Rubattu S. Obesity: the perfect storm for heart failure. ESC Heart Fail 2024; 11:1841-1860. [PMID: 38491741 PMCID: PMC11287355 DOI: 10.1002/ehf2.14641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/27/2023] [Accepted: 12/05/2023] [Indexed: 03/18/2024] Open
Abstract
Obesity condition causes morphological and functional alterations involving the cardiovascular system. These can represent the substrates for different cardiovascular diseases, such as atrial fibrillation, coronary artery disease, sudden cardiac death, and heart failure (HF) with both preserved ejection fraction (EF) and reduced EF. Different pathogenetic mechanisms may help to explain the association between obesity and HF including left ventricular remodelling and epicardial fat accumulation, endothelial dysfunction, and coronary microvascular dysfunction. Multi-imaging modalities are required for appropriate recognition of subclinical systolic dysfunction typically associated with obesity, with echocardiography being the most cost-effective technique. Therapeutic approach in patients with obesity and HF is challenging, particularly regarding patients with preserved EF in which few strategies with high level of evidence are available. Weight loss is of extreme importance in patients with obesity and HF, being a primary therapeutic intervention. Sodium-glucose co-transporter-2 inhibitors have been recently introduced as a novel tool in the management of HF patients. The present review aims at analysing the most recent studies supporting pathogenesis, diagnosis, and management in patients with obesity and HF.
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Affiliation(s)
- Maria Lembo
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Teresa Strisciuglio
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Celeste Fonderico
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Costantino Mancusi
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Raffaele Izzo
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Valentina Trimarco
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Alessandro Bellis
- Emergenza Accettazione DepartmentAzienda Ospedaliera ‘Antonio Cardarelli’NaplesItaly
| | - Emanuele Barbato
- Department of Clinical and Molecular MedicineSapienza University of RomeRomeItaly
| | - Giovanni Esposito
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Carmine Morisco
- Department of Advanced Biochemical SciencesFederico II UniversityNaplesItaly
| | - Speranza Rubattu
- Department of Clinical and Molecular MedicineSapienza University of RomeRomeItaly
- IRCCS NeuromedPozzilliItaly
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10
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Maayah M, Latif N, Vijay A, Gallegos CM, Cigarroa N, Posada Martinez EL, Mazure CM, Miller EJ, Spatz ES, Shah SM. Evaluating Ischemic Heart Disease in Women: Focus on Angina With Nonobstructive Coronary Arteries (ANOCA). JOURNAL OF THE SOCIETY FOR CARDIOVASCULAR ANGIOGRAPHY & INTERVENTIONS 2024; 3:102195. [PMID: 39166160 PMCID: PMC11330936 DOI: 10.1016/j.jscai.2024.102195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/22/2024] [Accepted: 05/29/2024] [Indexed: 08/22/2024]
Abstract
Ischemic heart disease (IHD) is common in women, and cardiovascular disease is a leading cause of morbidity and mortality. While obstructive coronary artery disease is the most common form of IHD, millions of women suffer from angina with nonobstructive coronary arteries (ANOCA), an umbrella term encompassing multiple nonatherosclerotic disorders of the coronary tree. The underlying pathology leading to ischemia in these syndromes may be challenging to diagnose, leaving many women without a diagnosis despite persistent symptoms that impact quality of life and adversely affect long-term cardiovascular prognosis. In the last decade, there have been significant advances in the recognition and diagnostic evaluation of ANOCA. Despite these advances, the standard approach to evaluating suspected IHD in women continues to focus predominantly on the assessment of atherosclerotic coronary artery disease, leading to missed opportunities to accurately diagnose and treat underlying coronary vasomotor disorders. The goal of this review is to describe advances in diagnostic testing that can be used to evaluate angina in women and present a pragmatic diagnostic algorithm to guide evaluation of ANOCA in symptomatic patients. The proposed approach for the assessment of ANOCA is consistent with prior expert consensus documents and guidelines but is predicated on the medical interview and pretest probability of disease to inform a personalized diagnostic strategy.
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Affiliation(s)
- Marah Maayah
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Nida Latif
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Aishwarya Vijay
- Cardiovascular Division, John T. Milliken Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Cesia M. Gallegos
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Natasha Cigarroa
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | | | - Carolyn M. Mazure
- Department of Psychiatry and Women’s Health Research at Yale, Yale School of Medicine, New Haven, Connecticut
| | - Edward J. Miller
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Erica S. Spatz
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
- Center for Outcomes Research and Evaluation, Yale New Haven Health System, New Haven, Connecticut
| | - Samit M. Shah
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
- VA Connecticut Healthcare System, West Haven, Connecticut
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11
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Huck DM, Divakaran S, Weber B, Brown JM, Lopez D, Souza ACDAH, Hainer J, Blankstein R, Dorbala S, Di Carli M. Comparative effectiveness of positron emission tomography and single-photon emission computed tomography myocardial perfusion imaging for predicting risk in patients with cardiometabolic disease. J Nucl Cardiol 2024:101908. [PMID: 38996910 DOI: 10.1016/j.nuclcard.2024.101908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 06/23/2024] [Accepted: 07/01/2024] [Indexed: 07/14/2024]
Abstract
BACKGROUND The epidemiology of coronary artery disease (CAD) has shifted, with increasing prevalence of cardiometabolic disease and decreasing findings of obstructive CAD on myocardial perfusion imaging (MPI). Coronary microvascular dysfunction (CMD), defined as impaired myocardial flow reserve (MFR) by positron emission tomography (PET), has emerged as a key mediator of risk. We aimed to assess whether PET MFR provides additive value for risk stratification of cardiometabolic disease patients compared with single-photon emission computed tomography (SPECT) MPI. METHODS We retrospectively followed patients referred for PET, exercise SPECT, or pharmacologic SPECT MPI with cardiometabolic disease (obesity, diabetes, or chronic kidney disease) and without known CAD. We compared rates and hazards of composite major adverse cardiovascular events (MACEs) (annualized cardiac mortality or acute myocardial infarction) among propensity-matched PET and SPECT patients using Poisson and Cox regression. Normal SPECT was defined as a total perfusion deficit (TPD) of <5%, reflecting the absence of obstructive CAD. Normal PET was defined as a TPD of <5% plus an MFR of ≥2.0. RESULTS Among 21,544 patients referred from 2006 to 2020, cardiometabolic disease was highly prevalent (PET: 2308 [67%], SPECT: 9984 [55%]) and higher among patients referred to PET (P < 0.001). Obstructive CAD findings (TPD > 5%) were uncommon (PET: 21% and SPECT: 11%). Conversely, impaired MFR on PET (<2.0) was common (62%). In a propensity-matched analysis over a median 6.4-year follow-up, normal PET identified low-risk (0.9%/year MACE) patients, and abnormal PET identified high-risk (4.2%/year MACE) patients with cardiometabolic disease; conversely, those with normal pharmacologic SPECT remained moderate-risk (1.6%/year, P < 0.001 compared to normal PET). CONCLUSIONS Cardiometabolic disease is common among patients referred for MPI and is associated with a heterogenous level of risk. Compared with pharmacologic SPECT, PET with MFR can detect nonobstructive CAD including CMD and can more accurately discriminate low-risk from higher-risk individuals.
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Affiliation(s)
- Daniel M Huck
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Sanjay Divakaran
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Brittany Weber
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jenifer M Brown
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Diana Lopez
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ana Carolina do A H Souza
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jon Hainer
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ron Blankstein
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sharmila Dorbala
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Marcelo Di Carli
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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12
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Huck DM, Weber BN, Brown JM, Lopez D, Hainer J, Blankstein R, Dorbala S, Divakaran S, Di Carli MF. Prognostic value of myocardial flow reserve vs corrected myocardial flow reserve in patients without obstructive coronary artery disease. J Nucl Cardiol 2024; 37:101854. [PMID: 38606610 PMCID: PMC11257809 DOI: 10.1016/j.nuclcard.2024.101854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Myocardial flow reserve (MFR) by positron emission tomography (PET) is a validated measure of cardiovascular risk. Elevated resting rate pressure product (RPP = heart rate x systolic blood pressure) can cause high resting myocardial blood flow (MBF), resulting in reduced MFR despite normal/near-normal peak stress MBF. When resting MBF is high, it is not known if RPP-corrected MFR (MFRcorrected) helps reclassify CV risk. We aimed to study this question in patients without obstructive coronary artery disease (CAD). METHODS We retrospectively studied patients referred for rest/stress cardiac PET at our center from 2006 to 2020. Patients with abnormal perfusion (summed stress score >3) or prior coronary artery bypass grafting (CABG) were excluded. MFRcorrected was defined as stress MBF/corrected rest MBF where corrected rest MBF = rest MBF x 10,000/RPP. The primary outcome was major cardiovascular events (MACE): cardiovascular death or myocardial infarction. Associations of MFR and MFRcorrected with MACE were assessed using unadjusted and adjusted Cox regression. RESULTS 3276 patients were followed for a median of 7 (IQR 3-12) years. 1685 patients (51%) had MFR <2.0, and of those 366 (22%) had an MFR ≥2.0 after RPP correction. MFR <2.0 was associated with an increased absolute risk of MACE (HR 2.24 [1.79-2.81], P < 0.0001). Among patients with MFR <2.0, the risk of MACE was not statistically different between patients with an MFRcorrected ≥2.0 compared with those with MFRcorrected <2.0 (1.9% vs 2.3% MACE/year, HR 0.84 [0.63-1.13], P = 0.26) even after adjustment for confounders (P = 0.66). CONCLUSIONS In patients without overt obstructive CAD and MFR< 2.0, there was no significant difference in cardiovascular risk between patients with discordant (≥2.0) and concordant (<2) MFR following RPP correction. This suggests that RPP-corrected MFR may not consistently provide accurate risk stratification in patients with normal perfusion and MFR <2.0. Stress MBF and uncorrected MFR should be reported to more reliably convey cardiovascular risk beyond perfusion results.
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Affiliation(s)
- Daniel M Huck
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Brittany N Weber
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. https://twitter.com/@bweber04
| | - Jenifer M Brown
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. https://twitter.com/@JeniferBrown
| | - Diana Lopez
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. https://twitter.com/@BWHCVImaging
| | - Jon Hainer
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ron Blankstein
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. https://twitter.com/@RonBlankstein
| | - Sharmila Dorbala
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sanjay Divakaran
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. https://twitter.com/@SanjayDivakaran
| | - Marcelo F Di Carli
- From the Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. https://twitter.com/@mdicarli
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13
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McCallinhart PE, Chade AR, Bender SB, Trask AJ. Expanding landscape of coronary microvascular disease in co-morbid conditions: Metabolic disease and beyond. J Mol Cell Cardiol 2024; 192:26-35. [PMID: 38734061 PMCID: PMC11340124 DOI: 10.1016/j.yjmcc.2024.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Coronary microvascular disease (CMD) and impaired coronary blood flow control are defects that occur early in the pathogenesis of heart failure in cardiometabolic conditions, prior to the onset of atherosclerosis. In fact, recent studies have shown that CMD is an independent predictor of cardiac morbidity and mortality in patients with obesity and metabolic disease. CMD is comprised of functional, structural, and mechanical impairments that synergize and ultimately reduce coronary blood flow in metabolic disease and in other co-morbid conditions, including transplant, autoimmune disorders, chemotherapy-induced cardiotoxicity, and remote injury-induced CMD. This review summarizes the contemporary state-of-the-field related to CMD in metabolic and these other co-morbid conditions based on mechanistic data derived mostly from preclinical small- and large-animal models in light of available clinical evidence and given the limitations of studying these mechanisms in humans. In addition, we also discuss gaps in current understanding, emerging areas of interest, and opportunities for future investigations in this field.
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Affiliation(s)
- Patricia E McCallinhart
- Center for Cardiovascular Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, United States of America
| | - Alejandro R Chade
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, United States of America; Department of Medicine, University of Missouri School of Medicine, Columbia, MO, United States of America
| | - Shawn B Bender
- Department of Biomedical Sciences, University of Missouri, Columbia, MO, United States of America; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, United States of America; Research Service, Harry S Truman Memorial Veterans Hospital, Columbia, MO, United States of America.
| | - Aaron J Trask
- Center for Cardiovascular Research, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, United States of America; Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, United States of America.
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14
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Cui L, Wang Y, Chen W, Huang P, Tang Z, Wang J, Li J, Tse G, Liu T, Wang Y, Chen K. Coronary microvascular dysfunction and myocardial area at risk assessed by cadmium zinc telluride single photon emission computed tomography after primary percutaneous coronary intervention in acute myocardial infarction patients. Quant Imaging Med Surg 2024; 14:3816-3827. [PMID: 38846287 PMCID: PMC11151247 DOI: 10.21037/qims-23-1260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 04/30/2024] [Indexed: 06/09/2024]
Abstract
Background A high proportion of coronary microvascular dysfunction (CMD) has been observed in patients with acute myocardial infarction (AMI) who have received primary percutaneous coronary intervention (PCI), which may affect their prognosis. This study used cadmium zinc telluride (CZT) single photon emission computed tomography (SPECT) to evaluate the prevalence and characteristics of CMD and myocardial area at risk (AAR) in AMI patients who had undergone primary PCI. Methods We conducted a single-center cross-sectional retrospective study at TEDA International Cardiovascular Hospital from September 2021 to June 2022. A total of 83 patients received primary PCI for AMI. Subsequently, a rest/stress dynamic and routine gated myocardial perfusion imaging (MPI) were performed 1 week after PCI. The CMD group was defined as having a residual stenosis of infarct-related artery (IRA) <50% and myocardial flow reserve (MFR) <2.0 in this corresponding territory, whereas MFR ≥2.0 of IRA pertained to the normal control group. Rest-AAR of infarction (%) and stress-AAR (%) were expressed by the percentage of measured rest-defect-size and stress-defect-size in the left ventricular area, respectively. Logistic regression analyses were performed to identify significant predictors of CMD. Results A total of 53 patients with a mean age of 57.06±11.99 years were recruited, of whom 81.1% were ST-segment elevation myocardial infarction (STEMI). The proportion of patients with CMD was 79.2% (42/53). The time of pain to SPECT imaging was 7.50±1.27 days in the CMD group and 7.45±1.86 days among controls. CMD patients had a higher body mass index (BMI) than controls (26.48±3.26 vs. 24.36±2.73 kg/m2, P=0.053), and a higher proportion of STEMI, thrombolysis in myocardial infarction (TIMI) 0 grade of IRA prior PCI than controls (88.1% vs. 54.5%, P=0.011; 61.9% vs. 18.2%, P=0.004, respectively). No significant difference was identified in the rest-myocardial blood flow (MBF) of IRA between the 2 groups, whereas the stress-MBF and MFR of IRA, rest-AAR, and stress-AAR in the CMD group were remarkably lowered. Higher BMI [odds ratio (OR): 1.332, 95% confidence interval (CI): 1.008-1.760, P=0.044] and stress-AAR (OR: 1.994, 95% CI: 1.122-3.543, P=0.019) were used as independent predictors of CMD occurrence. Conclusions The prevalence of CMD is high in AMI patients who received primary PCI. Each 1 kg/m2 increase in BMI was associated with a 1.3-fold increase in CMD risk. A 5% increase in stress-AAR was associated with a nearly 2-fold increase in CMD risk. Increased BMI and stress-AAR predicts decreased coronary reserve function.
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Affiliation(s)
- Lijun Cui
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Yangchongzi Wang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Weiqiang Chen
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Ping Huang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Zijian Tang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Jiao Wang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Jianming Li
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
- School of Nursing and Health Studies, Hong Kong Metropolitan University, Hong Kong, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yongde Wang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin, China
- Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China
| | - Kangyin Chen
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
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15
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Nishi T, Murai T, Waseda K, Hirohata A, Yong ASC, Ng MKC, Amano T, Barbato E, Kakuta T, Fearon WF. Prognostic Value of Microvascular Resistance Reserve Measured Immediately After PCI in Stable Coronary Artery Disease. Circ Cardiovasc Interv 2024; 17:e013728. [PMID: 38726677 DOI: 10.1161/circinterventions.123.013728] [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: 10/17/2023] [Accepted: 02/29/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND Microvascular resistance reserve (MRR) has been proposed as a specific metric to quantify coronary microvascular function. The long-term prognostic value of MRR measured in stable patients immediately after percutaneous coronary intervention (PCI) is unknown. This study sought to determine the prognostic value of MRR measured immediately after PCI in patients with stable coronary artery disease. METHODS This study included 502 patients with stable coronary artery disease who underwent elective PCI and coronary physiological measurements, including pressure and flow estimation using a bolus thermodilution method after PCI. MRR was calculated as coronary flow reserve divided by fractional flow reserve times the ratio of mean aortic pressure at rest to that at maximal hyperemia induced by hyperemic agents. An abnormal MRR was defined as ≤2.5. Major adverse cardiac events (MACEs) were defined as a composite of all-cause mortality, any myocardial infarction, and target-vessel revascularization. RESULTS During a median follow-up of 3.4 years, the cumulative MACE rate was significantly higher in the abnormal MRR group (12.5 versus 8.3 per 100 patient-years; hazard ratio 1.53 [95% CI, 1.10-2.11]; P<0.001). A higher all-cause mortality rate primarily drove this difference. On multivariable analysis, a higher MRR value was independently associated with lower MACE and lower mortality. When comparing 4 subgroups according to MRR and the index of microcirculatory resistance, patients with both abnormal MRR and index of microcirculatory resistance (≥25) had the highest MACE rate. CONCLUSIONS An abnormal MRR measured immediately after PCI in patients with stable coronary artery disease is an independent predictor of MACE, particularly all-cause mortality.
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Affiliation(s)
- Takeshi Nishi
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, CA (T.N., W.F.F.)
- Department of Cardiovascular Medicine, Chiba University Graduate School Medicine, Japan (T.N.)
| | - Tadashi Murai
- Department of Cardiology, Tsuchiura Kyodo General Hospital, Ibaraki, Japan (T.M., T.K.)
| | - Katsuhisa Waseda
- Department of Cardiology, Aichi Medical University, Japan (K.W., T.A.)
| | - Atsushi Hirohata
- Department of Cardiovascular Medicine, Sakakibara Heart Institute of Okayama, Japan (A.H.)
| | - Andy S C Yong
- Department of Cardiology, Concord Hospital, Sydney, NSW, Australia (A.S.C.Y.)
- Sydney Medical School, The University of Sydney, NSW, Australia (A.S.C.Y., M.K.C.N.)
| | - Martin K C Ng
- Sydney Medical School, The University of Sydney, NSW, Australia (A.S.C.Y., M.K.C.N.)
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia (M.K.C.N.)
| | - Tetsuya Amano
- Department of Cardiology, Aichi Medical University, Japan (K.W., T.A.)
| | - Emanuele Barbato
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Italy (E.B.)
| | - Tsunekazu Kakuta
- Department of Cardiology, Tsuchiura Kyodo General Hospital, Ibaraki, Japan (T.M., T.K.)
| | - William F Fearon
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, CA (T.N., W.F.F.)
- VA Palo Alto Health Care System, CA (W.F.F.)
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16
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Taqueti VR, Fuster V. The Rise of 2 Interacting Subspecialties in Cardiology: Cardiometabolic Diseases and the Microcirculation. J Am Coll Cardiol 2024; 83:1821-1823. [PMID: 38692831 DOI: 10.1016/j.jacc.2024.03.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
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17
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Tune JD, Warne CM, Essajee SI, Tucker SM, Figueroa CA, Dick GM, Beard DA. Unraveling the Gordian knot of coronary pressure-flow autoregulation. J Mol Cell Cardiol 2024; 190:82-91. [PMID: 38608928 DOI: 10.1016/j.yjmcc.2024.04.008] [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: 02/13/2024] [Revised: 03/27/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024]
Abstract
The coronary circulation has the inherent ability to maintain myocardial perfusion constant over a wide range of perfusion pressures. The phenomenon of pressure-flow autoregulation is crucial in response to flow-limiting atherosclerotic lesions which diminish coronary driving pressure and increase risk of myocardial ischemia and infarction. Despite well over half a century of devoted research, understanding of the mechanisms responsible for autoregulation remains one of the most fundamental and contested questions in the field today. The purpose of this review is to highlight current knowledge regarding the complex interrelationship between the pathways and mechanisms proposed to dictate the degree of coronary pressure-flow autoregulation. Our group recently likened the intertwined nature of the essential determinants of coronary flow control to the symbolically unsolvable "Gordian knot". To further efforts to unravel the autoregulatory "knot", we consider recent challenges to the local metabolic and myogenic hypotheses and the complicated dynamic structural and functional heterogeneity unique to the heart and coronary circulation. Additional consideration is given to interrogation of putative mediators, role of K+ and Ca2+ channels, and recent insights from computational modeling studies. Improved understanding of how specific vasoactive mediators, pathways, and underlying disease states influence coronary pressure-flow relations stands to significantly reduce morbidity and mortality for what remains the leading cause of death worldwide.
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Affiliation(s)
- Johnathan D Tune
- Department of Physiology and Anatomy, University of North Texas Health Science Center, USA.
| | - Cooper M Warne
- Department of Physiology and Anatomy, University of North Texas Health Science Center, USA
| | - Salman I Essajee
- Department of Physiology and Anatomy, University of North Texas Health Science Center, USA
| | - Selina M Tucker
- Department of Physiology and Anatomy, University of North Texas Health Science Center, USA
| | - C Alberto Figueroa
- Section of Vascular Surgery, Department of Surgery, University of Michigan, USA; Department of Biomedical Engineering, University of Michigan, USA
| | - Gregory M Dick
- Department of Physiology and Anatomy, University of North Texas Health Science Center, USA
| | - Daniel A Beard
- Department of Molecular and Integrative Physiology, University of Michigan, USA
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Valenta I, Upadhyaya A, Jain S, Schindler TH. PET/CT Assessment of Flow-Mediated Epicardial Vasodilation in Obesity and Severe Obesity. JACC. ADVANCES 2024; 3:100936. [PMID: 38939628 PMCID: PMC11198679 DOI: 10.1016/j.jacadv.2024.100936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/25/2024] [Indexed: 06/29/2024]
Abstract
Background It is not known whether the transition from obesity and severe obesity, as 2 different metabolic disease entities, affect flow-mediated and, thus, endothelium-dependent epicardial vasodilation. Objectives The purpose of this study was to investigate the effect of obesity and severe obesity on flow-mediated epicardial vasomotion with positron emission tomography/computed tomography-determined longitudinal decrease in myocardial blood flow (MBF) from the base-to-apex direction of the left ventricle or gradient. Methods 13N-ammonia positron emission tomography/computed tomography evaluated global MBF during pharmacologically induced hyperemia and at rest for assessment of coronary microvascular function. In addition, the Δ longitudinal MBF gradient (hyperemia minus rest) was determined. Patients were then grouped according to the body mass index (BMI) into normal weight (NW) (BMI 20.0-24.9 kg/m2, n = 27), overweight (OW) (BMI 25.0-29.9 kg/m2, n = 29), obesity (OB) (BMI 30.0-39.9 kg/m2, n = 53), and severe obesity (morbid obesity: BMI ≥40 kg/m2, n = 43). Results Compared to NW, left ventricular Δ longitudinal MBF gradient progressively declined in OW and OB (0.04 ± 0.09 mL/g/min vs -0.11 ± 0.14 mL/g/min and -0.15 ± 0.11 mL/g/min; P ≤ 0.001, respectively) but not significantly in SOB (-0.01 ± 0.11 mL/g/min, P = 0.066). Regadenoson-induced global hyperemic MBF was lower in OB than in NW (1.88 ± 0.40 mL/g/min vs 2.35 ± 0.32 mL/g/min; P ≤ 0.001), while comparable between NW and SOB (2.35 ± 0.32 mL/g/min vs 2.26 ± 0.40 mL/g/min; P = 0.302). The BMI of the study population was associated with the Δ longitudinal MBF gradient in a U-turn fashion (r = 0.362, standard error of the estimate = 0.124; P < 0.001). Conclusions Increased body weight associates with abnormalities in coronary circulatory function that advances from an impairment flow-mediated, epicardial vasodilation in overweight and obesity to coronary microvascular dysfunction in obesity, not observed in severe obesity. The U-turn of flow-mediated epicardial vasomotion outlines obesity and severe obesity to affect epicardial endothelial function differently.
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Affiliation(s)
- Ines Valenta
- Cardiovascular Division, John T. Milliken Department of Internal Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Anand Upadhyaya
- Cardiovascular Division, John T. Milliken Department of Internal Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Sudhir Jain
- Division of Nuclear Medicine-Cardiovascular, Washington University in St. Louis School of Medicine, Mallinckrodt Institute of Radiology, St. Louis, Missouri, USA
| | - Thomas H. Schindler
- Cardiovascular Division, John T. Milliken Department of Internal Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
- Division of Nuclear Medicine-Cardiovascular, Washington University in St. Louis School of Medicine, Mallinckrodt Institute of Radiology, St. Louis, Missouri, USA
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Chng ACC, Keng BMH, Teng XF, Aik KW, Azman MK, Natividad LR, Chong CSM, Neela PN, Tan RS, Baskaran L, Chua TSJ, Keng FYJ, Koh AS. Going beyond summed stress scores: Correlating global and territorial coronary flow reserve by single photon emission tomography with routine myocardial perfusion imaging. Heliyon 2024; 10:e29629. [PMID: 38660292 PMCID: PMC11040110 DOI: 10.1016/j.heliyon.2024.e29629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/21/2024] [Accepted: 04/11/2024] [Indexed: 04/26/2024] Open
Abstract
a Background Technological advancement in the recent years has enabled the application of single photon emission tomography (SPECT) to evaluate myocardial blood flow (MBF). This method offers increased sensitivity in the assessment of coronary health, quantifiable through non-invasive imaging beyond the more conventional methods such as with myocardial perfusion imaging (MPI). b Aims To correlate MBF, derived by dynamic SPECT, both global and by coronary territories to the summed stress scores (SSS) on conventional MPI. c Methods Images obtained from dipyridamole-gated SPECT MPI stress and rest studies performed on recruited subjects were examined. We calculated the global and regional coronary flow reserve (CFR) via a standard software package, taken as the ratio of stress MBF to rest MBF, using CFR<2.5 as the cut off. d Results Amongst the 90 recruited subjects (mean age 67 ± 8 years; of which 76% were males), 49% had MPI within normal limits (summed stress score (SSS) 0-3; Left ventricular ejection fraction (LVEF) > 50%). We observed a progressive reduction in global and regional CFR across the normal SSS category to that of severely abnormal (SSS >13). Reduced global CFR with correspondent lower CFR across the regional arteries were detected in scans within normal limits of MPI scans in subjects who were older (69 ± 7 vs. 62 ± 9 years, p = 0.034). Decreasing CFR was significantly associated with increasing age across the regional arteries. e Conclusion In our study we depict the global and regional MBF values obtained via SPECT MPI in correlation to the respective SSS categories. Our data proposes that dynamic SPECT has a part in refining cardiac risk stratification, particularly in the older adult population, who are at greater risk.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Ru-San Tan
- National Heart Centre Singapore, Singapore
- Duke-NUS Medical School, Singapore
| | - Lohendran Baskaran
- National Heart Centre Singapore, Singapore
- Duke-NUS Medical School, Singapore
| | - Terrance SJ. Chua
- National Heart Centre Singapore, Singapore
- Duke-NUS Medical School, Singapore
| | - Felix YJ. Keng
- National Heart Centre Singapore, Singapore
- Duke-NUS Medical School, Singapore
| | - Angela S. Koh
- National Heart Centre Singapore, Singapore
- Duke-NUS Medical School, Singapore
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Patel N, Greene N, Guynn N, Sharma A, Toleva O, Mehta PK. Ischemia but no obstructive coronary artery disease: more than meets the eye. Climacteric 2024; 27:22-31. [PMID: 38224068 DOI: 10.1080/13697137.2023.2281933] [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] [Received: 07/26/2023] [Accepted: 10/31/2023] [Indexed: 01/16/2024]
Abstract
Symptomatic women with angina are more likely to have ischemia with no obstructive coronary arteries (INOCA) compared to men. In both men and women, the finding of INOCA is not benign and is associated with adverse cardiovascular events, including myocardial infarction, heart failure and angina hospitalizations. Women with INOCA have more angina and a lower quality of life compared to men, but they are often falsely reassured because of a lack of obstructive coronary artery disease (CAD) and a perception of low risk. Coronary microvascular dysfunction (CMD) is a key pathophysiologic contributor to INOCA, and non-invasive imaging methods are used to detect impaired microvascular flow. Coronary vasospasm is another mechanism of INOCA, and can co-exist with CMD, but usually requires invasive coronary function testing (CFT) with provocation testing for a definitive diagnosis. In addition to traditional heart disease risk factors, inflammatory, hormonal and psychological risk factors that impact microvascular tone are implicated in INOCA. Treatment of risk factors and use of anti-atherosclerotic and anti-anginal medications offer benefit. Increasing awareness and early referral to specialized centers that focus on INOCA management can improve patient-oriented outcomes. However, large, randomized treatment trials to investigate the impact on major adverse cardiovascular events (MACE) are needed. In this focused review, we discuss the prevalence, pathophysiology, presentation, diagnosis and treatment of INOCA.
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Affiliation(s)
- N Patel
- J. Willis Hurst Internal Medicine Residency Program, Emory University, Atlanta, GA, USA
| | - N Greene
- Emory University School of Medicine, Atlanta, GA, USA
| | - N Guynn
- J. Willis Hurst Internal Medicine Residency Program, Emory University, Atlanta, GA, USA
| | - A Sharma
- Department of Internal Medicine, Grady Memorial Hospital, Atlanta, GA, USA
| | - O Toleva
- Andreas Gruentzig Cardiovascular Center, Division of Cardiology, Emory University School of Medicine, Atlanta, GA, USA
| | - P K Mehta
- Emory Women's Heart Center and Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Emory University School of Medicine, Atlanta, GA, USA
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Souza ACDAH, Rosenthal MH, Moura FA, Divakaran S, Osborne MT, Hainer J, Dorbala S, Blankstein R, Di Carli MF, Taqueti VR. Body Composition, Coronary Microvascular Dysfunction, and Future Risk of Cardiovascular Events Including Heart Failure. JACC Cardiovasc Imaging 2024; 17:179-191. [PMID: 37768241 PMCID: PMC10922555 DOI: 10.1016/j.jcmg.2023.07.014] [Citation(s) in RCA: 1] [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] [Received: 04/26/2023] [Revised: 07/24/2023] [Accepted: 07/24/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Body mass index (BMI) is a controversial marker of cardiovascular prognosis, especially in women. Coronary microvascular dysfunction (CMD) is prevalent in obese patients and a better discriminator of risk than BMI, but its association with body composition is unknown. OBJECTIVES The authors used a deep learning model for body composition analysis to investigate the relationship between CMD, skeletal muscle (SM), subcutaneous adipose tissue (SAT), and visceral adipose tissue (VAT), and their contribution to adverse outcomes in patients referred for evaluation of coronary artery disease. METHODS Consecutive patients (n = 400) with normal perfusion and preserved left ventricular ejection fraction on cardiac stress positron emission tomography were followed (median, 6.0 years) for major adverse events, including death and hospitalization for myocardial infarction or heart failure. Coronary flow reserve (CFR) was quantified as stress/rest myocardial blood flow from positron emission tomography. SM, SAT, and VAT cross-sectional areas were extracted from abdominal computed tomography at the third lumbar vertebra using a validated automated algorithm. RESULTS Median age was 63, 71% were female, 50% non-White, and 50% obese. Compared with the nonobese, patients with obesity (BMI: 30.0-68.4 kg/m2) had higher SAT, VAT, and SM, and lower CFR (all P < 0.001). In adjusted analyses, decreased SM but not increased SAT or VAT was significantly associated with CMD (CFR <2; OR: 1.38; 95% CI: 1.08-1.75 per -10 cm2/m2 SM index; P < 0.01). Both lower CFR and SM, but not higher SAT or VAT, were independently associated with adverse events (HR: 1.83; 95% CI: 1.25-2.68 per -1 U CFR and HR: 1.53; 95% CI: 1.20-1.96 per -10 cm2/m2 SM index, respectively; P < 0.002 for both), especially heart failure hospitalization (HR: 2.36; 95% CI: 1.31-4.24 per -1 U CFR and HR: 1.87; 95% CI: 1.30-2.69 per -10 cm2/m2 SM index; P < 0.004 for both). There was a significant interaction between CFR and SM (adjusted P = 0.026), such that patients with CMD and sarcopenia demonstrated the highest rate of adverse events, especially among young, female, and obese patients (all P < 0.005). CONCLUSIONS In a predominantly female cohort of patients without flow-limiting coronary artery disease, deficient muscularity, not excess adiposity, was independently associated with CMD and future adverse outcomes, especially heart failure. In patients with suspected ischemia and no obstructive coronary artery disease, characterization of lean body mass and coronary microvascular function may help to distinguish obese phenotypes at risk for cardiovascular events.
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Affiliation(s)
- Ana Carolina do A H Souza
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Michael H Rosenthal
- Department of Imaging, Dana-Farber Cancer Institute, and Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Filipe A Moura
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Sanjay Divakaran
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Michael T Osborne
- Cardiovascular Imaging Research Center and Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jon Hainer
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Sharmila Dorbala
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Ron Blankstein
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Marcelo F Di Carli
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Viviany R Taqueti
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA.
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22
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Schindler TH, Peterson LR. Sarcopenia and Coronary Microvascular Dysfunction: "Attention Must Be Paid". JACC Cardiovasc Imaging 2024; 17:192-194. [PMID: 37921723 PMCID: PMC11185176 DOI: 10.1016/j.jcmg.2023.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/20/2023] [Indexed: 11/04/2023]
Affiliation(s)
- Thomas H Schindler
- Washington University in St Louis, Mallinckrodt Institute of Radiology, Division of Nuclear Medicine, St Louis, Missouri, USA; Washington University in St Louis School of Medicine, John T. Milliken Department of Internal Medicine, Cardiovascular Division, St Louis, Missouri, USA.
| | - Linda R Peterson
- Washington University in St Louis School of Medicine, John T. Milliken Department of Internal Medicine, Cardiovascular Division, St Louis, Missouri, USA
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23
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Taqueti VR. Prevalence of Abnormal Coronary Function in Patients With Angina and No Obstructive Coronary Artery Disease on Coronary Computed Tomography Angiography: Insights From the CorCTA Trial. Circulation 2024; 149:24-27. [PMID: 38153994 DOI: 10.1161/circulationaha.123.066571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Affiliation(s)
- Viviany R Taqueti
- Cardiovascular Imaging Program, Departments of Radiology and Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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24
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Ferko N, Priest S, Almuallem L, Walczyk Mooradally A, Wang D, Oliva Ramirez A, Szabo E, Cabra A. Economic and healthcare resource utilization assessments of PET imaging in Coronary Artery Disease diagnosis: a systematic review and discussion of opportunities for future economic evaluations. J Med Econ 2024; 27:715-729. [PMID: 38650543 DOI: 10.1080/13696998.2024.2345507] [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: 02/20/2024] [Accepted: 04/17/2024] [Indexed: 04/25/2024]
Abstract
AIMS This systematic literature review (SLR) consolidated economic and healthcare resource utilization (HCRU) evidence for positron emission tomography (PET) and single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) to inform future economic evaluations. MATERIALS AND METHODS An electronic search was conducted in MEDLINE, Embase, and Cochrane databases from 2012-2022. Economic and HCRU studies in adults who underwent PET- or SPECT-MPI for coronary artery disease (CAD) diagnosis were eligible. A qualitative methodological assessment of existing economic evaluations, HCRU, and downstream cardiac outcomes was completed. Exploratory meta-analyses of clinical outcomes were performed. RESULTS The search yielded 13,439 results, with 71 records included. Economic evaluations and comparative clinical trials were limited in number and outcome types (HCRU, downstream cardiac outcomes, and diagnostic performance) assessed. No studies included all outcome types and only one economic evaluation linked diagnostic performance to HCRU. The meta-analyses of comparative studies demonstrated significantly higher rates of early- and late-invasive coronary angiography and revascularization for PET- compared to SPECT-MPI; however, the rate of repeat testing was lower with PET-MPI. The rate of acute myocardial infarction was lower, albeit non-significant with PET- vs. SPECT-MPI. LIMITATIONS AND CONCLUSIONS This SLR identified economic and HCRU evaluations following PET- and SPECT-MPI for CAD diagnosis and determined that existing studies do not capture all pertinent outcome parameters or link diagnostic performance to downstream HCRU and cardiac outcomes, thus, resulting in simplified assessments of CAD burden. A limitation of this work relates to heterogeneity in study designs, patient populations, and follow-up times of existing studies. Resultingly, it was challenging to pool data in meta-analyses. Overall, this work provides a foundation for the development of comprehensive economic models for PET- and SPECT-MPI in CAD diagnosis, which should link diagnostic outcomes to HCRU and downstream cardiac events to capture the full CAD scope.
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Affiliation(s)
| | | | | | | | - Di Wang
- EVERSANA, Burlington, Canada
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25
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Benitez-Albiter A, Anderson CP, Jones M, Park SS, Layec G, Park SY. Contributing Factors to Endothelial Dysfunction in Individuals with Spinal Cord Injuries. Pulse (Basel) 2024; 12:49-57. [PMID: 39022560 PMCID: PMC11250044 DOI: 10.1159/000539199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/27/2024] [Indexed: 07/20/2024] Open
Abstract
Background Patients with spinal cord injuries (SCIs) are at a greater risk for the development of cardiovascular diseases (CVDs) than able-bodied individuals due to the high risk of endothelial dysfunction. Summary For instance, patients with SCIs lose autonomic control of the heart and vasculature, which results in severe fluctuations in blood pressure. These oscillations between hypotension and hypertension have been shown to damage blood vessel endothelial cells and may contribute to the development of atherosclerosis. Furthermore, the loss of skeletal muscle control results in skeletal muscle atrophy and inward remodeling of the conduit arteries. It has been shown that blood vessels in the legs are chronically exposed to high shear, while the aorta experiences chronically low shear. These alterations to shear forces may adversely impact endothelial vasodilatory capacity and promote inflammatory signaling and leukocyte adherence. Additionally, microvascular endothelial vasodilatory capacity is impaired in patients with an SCI, and this may precede changes in conduit artery endothelial function. Finally, due to immobility and a loss of skeletal muscle mass, patients with SCIs have a higher risk of metabolic disorders, inflammation, and oxidative stress. Key Messages Collectively, these factors may impair endothelium-dependent vasodilatory capacity, promote leukocyte adhesion and infiltration, promote the peroxidation of lipids, and ultimately support the development of atherosclerosis. Therefore, future interventions to prevent CVDs in patients with SCIs should focus on the management of endothelial health to prevent endothelial dysfunction and atherosclerosis.
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Affiliation(s)
| | - Cody P. Anderson
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
| | - Matthew Jones
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
| | - Sang-Seo Park
- Department of Physiology, Kyung Hee University, Seoul, Republic of Korea
| | - Gwenael Layec
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Song-Young Park
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, USA
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA
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Zdravkovic M, Popadic V, Klasnja S, Klasnja A, Ivankovic T, Lasica R, Lovic D, Gostiljac D, Vasiljevic Z. Coronary Microvascular Dysfunction and Hypertension: A Bond More Important than We Think. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2149. [PMID: 38138252 PMCID: PMC10744540 DOI: 10.3390/medicina59122149] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023]
Abstract
Coronary microvascular dysfunction (CMD) is a clinical entity linked with various risk factors that significantly affect cardiac morbidity and mortality. Hypertension, one of the most important, causes both functional and structural alterations in the microvasculature, promoting the occurrence and progression of microvascular angina. Endothelial dysfunction and capillary rarefaction play the most significant role in the development of CMD among patients with hypertension. CMD is also related to several hypertension-induced morphological and functional changes in the myocardium in the subclinical and early clinical stages, including left ventricular hypertrophy, interstitial myocardial fibrosis, and diastolic dysfunction. This indicates the fact that CMD, especially if associated with hypertension, is a subclinical marker of end-organ damage and heart failure, particularly that with preserved ejection fraction. This is why it is important to search for microvascular angina in every patient with hypertension and chest pain not associated with obstructive coronary artery disease. Several highly sensitive and specific non-invasive and invasive diagnostic modalities have been developed to evaluate the presence and severity of CMD and also to investigate and guide the treatment of additional complications that can affect further prognosis. This comprehensive review provides insight into the main pathophysiological mechanisms of CMD in hypertensive patients, offering an integrated diagnostic approach as well as an overview of currently available therapeutical modalities.
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Affiliation(s)
- Marija Zdravkovic
- Clinic for Internal Medicine, University Clinical Hospital Center Bezanijska Kosa, 11000 Belgrade, Serbia; (M.Z.); (S.K.); (A.K.); (T.I.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (R.L.); (D.G.); (Z.V.)
| | - Viseslav Popadic
- Clinic for Internal Medicine, University Clinical Hospital Center Bezanijska Kosa, 11000 Belgrade, Serbia; (M.Z.); (S.K.); (A.K.); (T.I.)
| | - Slobodan Klasnja
- Clinic for Internal Medicine, University Clinical Hospital Center Bezanijska Kosa, 11000 Belgrade, Serbia; (M.Z.); (S.K.); (A.K.); (T.I.)
| | - Andrea Klasnja
- Clinic for Internal Medicine, University Clinical Hospital Center Bezanijska Kosa, 11000 Belgrade, Serbia; (M.Z.); (S.K.); (A.K.); (T.I.)
| | - Tatjana Ivankovic
- Clinic for Internal Medicine, University Clinical Hospital Center Bezanijska Kosa, 11000 Belgrade, Serbia; (M.Z.); (S.K.); (A.K.); (T.I.)
| | - Ratko Lasica
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (R.L.); (D.G.); (Z.V.)
- Clinic of Cardiology, Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Dragan Lovic
- Clinic for Internal Diseases Inter Medica, 18000 Nis, Serbia;
- School of Medicine, Singidunum University, 18000 Nis, Serbia
| | - Drasko Gostiljac
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (R.L.); (D.G.); (Z.V.)
- Clinic of Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Zorana Vasiljevic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (R.L.); (D.G.); (Z.V.)
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Norberto MCCS, Araujo MYC, Ricardo SJ, Rodrigues Junior C, Guiça JT, Turi-Lynch BC, Codogno JS. Sedentary behavior, abdominal obesity and healthcare costs in Brazilian adults with cardiovascular diseases: a cross-sectional study. SAO PAULO MED J 2023; 142:e2023029. [PMID: 38055423 DOI: 10.1590/1516-3180.2023.0029.140823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND Research on the economic burden of sedentary behavior and abdominal obesity on health expenses associated with cardiovascular diseases is scarce. OBJECTIVE The objective of this study was to verify whether sedentary behavior, isolated and combined with abdominal obesity, influences the medication expenditure among adults with cardiovascular diseases. DESIGN AND SETTING This cross-sectional study was conducted in the city of President Prudente, State of São Paulo, Brazil in 2018. METHODS The study included adults with cardiovascular diseases, aged 30-65 years, who were treated by the Brazilian National Health Services. Sedentary behavior was assessed using a questionnaire. Abdominal obesity was defined by waist circumference. Medication expenditures were verified using the medical records of each patient. RESULTS The study included a total of 307 adults. Individuals classified in the group with risk factor obesity combined (median [IQ] USD$ 29.39 [45.77]) or isolated (median [IQ] USD$ 27.17 [59.76]) to sedentary behavior had higher medication expenditures than those belonging to the non-obese with low sedentary behavior group (median [IQ] USD$ 13.51 [31.42]) (P = 0.01). The group with combined obesity and sedentary behavior was 2.4 (95%CI = 1.00; 5.79) times more likely to be hypertensive. CONCLUSION Abdominal obesity was a determining factor for medication expenses, regardless of sedentary behavior, among adults with cardiovascular diseases.
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Affiliation(s)
| | - Monique Yndawe Castanho Araujo
- PhD Professor, Post-graduate Program in Movement Sciences, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil
| | - Suelen Jane Ricardo
- MSc, Physical Education, Post-Graduate Program in Physiotherapy, Universidade Estadual Paulista (UNESP), Presidente Prudente, Brazil
| | - Charles Rodrigues Junior
- MD. Master's Student, Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil
| | - Juziane Teixeira Guiça
- MD. Master's Student, Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil
| | - Bruna Camilo Turi-Lynch
- PhD. Professor, Department of Physical Education and Exercise Science, Lander University, Greenwood, South Carolina, United States of America
| | - Jamile Sanches Codogno
- PhD. Professor, Post-Graduation Program in Movement Sciences, Post-graduate program in Physiotherapy, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil
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Bai J, Zhang A, Zhang Y, Ren K, Ren Z, Zhao C, Wang Q, Cao N. Abdominal aortic calcification score can predict all-cause and cardiovascular mortality in maintenance hemodialysis patients. Ren Fail 2023; 45:2158869. [PMID: 36637006 PMCID: PMC9848265 DOI: 10.1080/0886022x.2022.2158869] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Purpose: Abdominal aortic calcification (AAC) assessed by using standard lateral lumbar radiographs can be graded, and composite summary scores (range, 0-24) have been shown to be highly predictive of subsequent cardiovascular morbidity and mortality in hemodialysis (HD) patients. However, few studies have sought to determine the optimal AAC score cutoff values for the prediction of mortality among HD patients.Methods: This retrospective cohort study included 408 hemodialysis patients. AAC severity was quantified by the AAC score, which was measured by lateral lumbar radiography with complete follow-up data from January 2015 to December 2021. We used receiver operating characteristic (ROC) analysis to find the cutoff AAC value for the prediction of mortality. The Kaplan-Meier method was used to analyze all-cause and cardiovascular mortality.Results: The cutoff calcification score for the prediction of mortality was 4.5 (sensitivity, 67.3%; specificity, 70.4%). The patients with AAC scores above 4.5 had significantly higher all-cause (log-rank p < 0.001) and cardiovascular (log-rank p < 0.001) mortality rates than those with AAC scores below 4.5. In the multivariate regression analyses, an AAC score above 4.5 was a significant factor associated with all-cause mortality (HR: 2.079, p = 0.002) and cardiovascular mortality (HR: 2.610, p < 0.001).Conclusions: AAC is a reliable aortic calcification marker. HD patients with an AAC score > 4.5 have significantly elevated all-cause and cardiovascular mortality compared with those with an AAC score ≤ 4.5. AAC was a better predictor than cardiac valve calcification for mortality in HD patients.
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Affiliation(s)
- Jiuxu Bai
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China
| | - Aihong Zhang
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China,Department of Nephrology, Xi’an People’s Hospital (Xi’an Fourth Hospital), Xi’an, China
| | - Yanping Zhang
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China
| | - Kaiming Ren
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China
| | - Zhuo Ren
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China
| | - Chen Zhao
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China
| | - Qian Wang
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China
| | - Ning Cao
- Department of Blood Purification, General Hospital of Northern Theater Command, Shenyang, China,CONTACT Ning Cao 83 Wen Hua Road, Liaoning, 110016, China
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Chow BJ, Galiwango P, Poulin A, Raggi P, Small G, Juneau D, Kazmi M, Ayach B, Beanlands RS, Sanfilippo AJ, Chow CM, Paterson DI, Chetrit M, Jassal DS, Connelly K, Larose E, Bishop H, Kass M, Anderson TJ, Haddad H, Mancini J, Doucet K, Daigle JS, Ahmadi A, Leipsic J, Lim SP, McRae A, Chou AY. Chest Pain Evaluation: Diagnostic Testing. CJC Open 2023; 5:891-903. [PMID: 38204849 PMCID: PMC10774086 DOI: 10.1016/j.cjco.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/01/2023] [Indexed: 01/12/2024] Open
Abstract
Chest pain/discomfort (CP) is a common symptom and can be a diagnostic dilemma for many clinicians. The misdiagnosis of an acute or progressive chronic cardiac etiology may carry a significant risk of morbidity and mortality. This review summarizes the different options and modalities for establishing the diagnosis and severity of coronary artery disease. An effective test selection algorithm should be individually tailored to each patient to maximize diagnostic accuracy in a timely fashion, determine short- and long-term prognosis, and permit implementation of evidence-based treatments in a cost-effective manner. Through collaboration, a decision algorithm was developed (www.chowmd.ca/cadtesting) that could be adopted widely into clinical practice.
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Affiliation(s)
- Benjamin J.W. Chow
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Department of Radiology, University of Ottawa, Ottawa, Ontario, Canada
| | - Paul Galiwango
- Department of Medicine, Scarborough Health Network and Lakeridge Health, University of Toronto, Toronto, Ontario, Canada
| | - Anthony Poulin
- Department of Medicine, Quebec Heart and Lung Institute, Laval University, Quebec, Quebec, Canada
| | - Paolo Raggi
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Gary Small
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Daniel Juneau
- Department of Radiology and Nuclear Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Quebec, Canada
| | - Mustapha Kazmi
- Department of Cardiac Sciences, Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Bilal Ayach
- Department of Medicine, Lakeridge Health, Queen’s University, Kingston, Ontario, Canada
| | - Rob S. Beanlands
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Anthony J. Sanfilippo
- Department of Medicine, Lakeridge Health, Queen’s University, Kingston, Ontario, Canada
| | - Chi-Ming Chow
- Division of Cardiology, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada
| | - D. Ian Paterson
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Michael Chetrit
- Department of Cardiovascular Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Davinder S. Jassal
- Department of Physiology and Pathophysiology, Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kim Connelly
- Division of Cardiology, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Eric Larose
- Department of Medicine, Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Québec, Quebec, Canada
| | - Helen Bishop
- Division of Cardiology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Malek Kass
- Department of Internal Medicine, Rady Faculty of Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Todd J. Anderson
- Department of Cardiac Sciences, Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Haissam Haddad
- Division of Cardiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - John Mancini
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Katie Doucet
- Peterborough Regional Health Centre, Kawartha Cardiology Clinic, Peterborough, Ontario, Canada
| | - Jean-Sebastien Daigle
- Department of Internal Medicine, Dr Everett Chalmers Hospital, Fredericton, New Brunswick, Canada
| | - Amir Ahmadi
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jonathan Leipsic
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Siok Ping Lim
- Mayfair Diagnostics, Saskatoon, Saskatchewan, Canada
| | - Andrew McRae
- Department of Cardiac Sciences, Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Annie Y. Chou
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Radiology, St. Paul’s Hospital, Vancouver, British Columbia, Canada
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30
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Ozkan B, Ndumele CE. Exploring the Mechanistic Link Between Obesity and Heart Failure. Curr Diab Rep 2023; 23:347-360. [PMID: 38100052 DOI: 10.1007/s11892-023-01526-y] [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] [Accepted: 11/07/2023] [Indexed: 01/14/2024]
Abstract
PURPOSE OF REVIEW Among subtypes of cardiovascular disease, obesity has a potent and unique association with heart failure (HF) that is unexplained by traditional cardiovascular risk mediators. The concomitant rise in the prevalence of obesity and HF necessitates better understanding of their relationship to develop effective prevention and treatment strategies. The purpose of this review is to provide mechanistic insight regarding the link between obesity and HF by elucidating the direct and indirect pathways linking the two conditions. RECENT FINDINGS Several direct pathophysiologic mechanisms contribute to HF risk in individuals with excess weight, including hemodynamic alterations, neurohormonal activation, hormonal effects of dysfunctional adipose tissue, ectopic fat deposition with resulting lipotoxicity and microvascular dysfunction. Obesity further predisposes to HF indirectly through causal associations with hypertension, dyslipidemia, and most importantly, diabetes via insulin resistance. Low levels of physical activity and fitness further influence HF risk in the context of obesity. These various processes lead to myocardial injury and cardiac remodeling that are reflected by abnormalities in cardiac biomarkers and cardiac function on myocardial imaging. Understanding and addressing obesity-associated HF is a pressing clinical and public health challenge which can be informed by a deeper understanding of the complex pathways linking these two conditions together.
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Affiliation(s)
- Bige Ozkan
- Division of Cardiology, Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, 600 N Wolfe St, Carnegie, Baltimore, MD, 568, USA
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Chiadi E Ndumele
- Division of Cardiology, Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, 600 N Wolfe St, Carnegie, Baltimore, MD, 568, USA.
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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31
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Jensen SM, Prescott EIB, Abdulla J. The prognostic value of coronary flow reserve in patients with non-obstructive coronary artery disease and microvascular dysfunction: a systematic review and meta-analysis with focus on imaging modality and sex difference. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2023; 39:2545-2556. [PMID: 37716916 DOI: 10.1007/s10554-023-02948-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 08/30/2023] [Indexed: 09/18/2023]
Abstract
To clarify prognosis of patients with non-obstructive coronary artery disease (NOCAD) and coronary microvascular disease (CMD) assessed as low coronary flow reserve (CFR) according to imaging modalities and sex difference. Comprehensive systematic literature review and meta-analyses were conducted. Risk of death and major adverse cardiac events (MACE) were pooled and compared in patients with abnormally low versus normal CFR using cut-off limits 2.0-2.5. Random effects model used for estimation of odds ratios (OR) and hazard ratios (HR) with 95% confidence interval (CI). Nineteen eligible observational studies provided data for death and MACE, publication bias was insignificant, p = 0.62. Risk of death and MACE were significantly higher in patients with low (n = 4.612, 29%) than normal CFR (n = 11.367, 71%): using transthoracal echocardiography (TTE) (OR 4.25 (95% CI 2.94, 6.15) p < 0.001) and (OR 6.98 (95% CI 2.56, 19.01) p < 0.001), positron emission tomography (PET) (OR 2.51 (CI 95%: 1.40, 4..49) p = 0.002) and (OR 2.87 (95% CI 2.16, 3.81) p < 0.001), and invasive intracoronary assessment (OR 2.23 (95% CI 1.15, 4.34) p < 0.018), and (OR 4.61 (95% CI 2.51, 8.48) p < 0.001), respectively. Pooled adjusted HR for death and MACE were (HR 2.45(95% CI 1.37, 3.53) p < 0.001) and (HR 2.08 (95% CI 1.54, 2.63) p < 0.001) respectively. Studies comparing men and women with abnormally low CFR demonstrated similar worse prognosis in both sexes. Low CFR is associated with poorer prognosis in patients with NOCAD regardless of sex. TTE may overestimate risk of death and MACE, while PET seems to be more appropriate. Future studies are needed to consolidate the current evidence.
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Affiliation(s)
- Signe Miang Jensen
- Department of Medicine, Section of Cardiology, Glostrup University Hospital of Copenhagen, Valdemar Hansens vej 1, 2600, Glostrup, Denmark
| | - Eva Irene Bossano Prescott
- Department of Cardiology, Bispebjerg Frederiksberg Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, Denmark
| | - Jawdat Abdulla
- Department of Medicine, Section of Cardiology, Glostrup University Hospital of Copenhagen, Valdemar Hansens vej 1, 2600, Glostrup, Denmark.
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32
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Case BC, Merdler I, Medranda GA, Zhang C, Ozturk ST, Sawant V, Margulies AD, Ben-Dor I, Waksman R, Hashim HD. Understanding Patient Characteristics and Coronary Microvasculature: Early Insights from the Coronary Microvascular Disease Registry. Am J Cardiol 2023; 205:97-103. [PMID: 37597488 DOI: 10.1016/j.amjcard.2023.07.159] [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: 06/30/2023] [Accepted: 07/25/2023] [Indexed: 08/21/2023]
Abstract
Coronary angiography has limitations in accurately assessing the coronary microcirculation. A new comprehensive invasive hemodynamic assessment method utilizing coronary flow reserve (CFR) and the index of microvascular resistance (IMR) offers improved diagnostic capabilities. This study aimed to present early real-world experience with invasive hemodynamic assessment of the coronary microvasculature in symptomatic patients with nonobstructive coronary artery disease (CAD) from the Coronary Microvascular Disease Registry, which is a prospective, multi-center registry that standardized the evaluation of patients with angina and nonobstructive CAD who underwent invasive hemodynamic assessment of the coronary microvasculature using the Coroventis CoroFlow Cardiovascular System. All patients underwent comprehensive invasive hemodynamic assessment. Analysis was performed on the first 154 patients enrolled in the Coronary Microvascular Disease Registry; their mean age was 62.4 years and 65.6% were female. A notable proportion of patients (31.8%) presented with a Canadian Cardiovascular Society Angina Score of 3 or 4. Coronary microvascular dysfunction was diagnosed in 39 of 154 patients (25.3%), with mean fractional flow reserve of 0.89 ± 0.43, mean resting full cycle ratio of 0.93 ± 0.08, mean CFR of 1.8 ± 0.9, and mean IMR of 36.26 ± 19.23. No in-hospital adverse events were reported in the patients. This study demonstrates the potential of invasive hemodynamic assessment using CFR and IMR to accurately evaluate the coronary microvasculature in patients with nonobstructive CAD. These findings have important implications for improving the diagnosis and management of coronary microvascular dysfunction, leading to more targeted and effective therapies for patients with microvascular angina.
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Affiliation(s)
- Brian C Case
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
| | - Ilan Merdler
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
| | - Giorgio A Medranda
- Division of Cardiology, Department of Medicine, New York University Langone Hospital, Long Island, Mineola, New York
| | - Cheng Zhang
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
| | - Sevket Tolga Ozturk
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
| | - Vaishnavi Sawant
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
| | - Adrian D Margulies
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
| | - Itsik Ben-Dor
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
| | - Ron Waksman
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC.
| | - Hayder D Hashim
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC
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Mengozzi A, de Ciuceis C, Dell'oro R, Georgiopoulos G, Lazaridis A, Nosalski R, Pavlidis G, Tual-Chalot S, Agabiti-Rosei C, Anyfanti P, Camargo LL, Dąbrowska E, Quarti-Trevano F, Hellmann M, Masi S, Mavraganis G, Montezano AC, Rios FJ, Winklewski PJ, Wolf J, Costantino S, Gkaliagkousi E, Grassi G, Guzik TJ, Ikonomidis I, Narkiewicz K, Paneni F, Rizzoni D, Stamatelopoulos K, Stellos K, Taddei S, Touyz RM, Triantafyllou A, Virdis A. The importance of microvascular inflammation in ageing and age-related diseases: a position paper from the ESH working group on small arteries, section of microvascular inflammation. J Hypertens 2023; 41:1521-1543. [PMID: 37382158 DOI: 10.1097/hjh.0000000000003503] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Microcirculation is pervasive and orchestrates a profound regulatory cross-talk with the surrounding tissue and organs. Similarly, it is one of the earliest biological systems targeted by environmental stressors and consequently involved in the development and progression of ageing and age-related disease. Microvascular dysfunction, if not targeted, leads to a steady derangement of the phenotype, which cumulates comorbidities and eventually results in a nonrescuable, very high-cardiovascular risk. Along the broad spectrum of pathologies, both shared and distinct molecular pathways and pathophysiological alteration are involved in the disruption of microvascular homeostasis, all pointing to microvascular inflammation as the putative primary culprit. This position paper explores the presence and the detrimental contribution of microvascular inflammation across the whole spectrum of chronic age-related diseases, which characterise the 21st-century healthcare landscape. The manuscript aims to strongly affirm the centrality of microvascular inflammation by recapitulating the current evidence and providing a clear synoptic view of the whole cardiometabolic derangement. Indeed, there is an urgent need for further mechanistic exploration to identify clear, very early or disease-specific molecular targets to provide an effective therapeutic strategy against the otherwise unstoppable rising prevalence of age-related diseases.
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Affiliation(s)
- Alessandro Mengozzi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
- Center for Translational and Experimental Cardiology (CTEC), Department of Cardiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Health Science Interdisciplinary Center, Scuola Superiore Sant'Anna, Pisa
| | - Carolina de Ciuceis
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia
| | - Raffaella Dell'oro
- Clinica Medica, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Georgios Georgiopoulos
- Angiology and Endothelial Pathophysiology Unit, Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, Athens
| | - Antonios Lazaridis
- Third Department of Internal Medicine, Aristotle University of Thessaloniki, Papageorgiou Hospital, Thessaloniki, Greece
| | - Ryszard Nosalski
- Centre for Cardiovascular Sciences; Queen's Medical Research Institute; University of Edinburgh, University of Edinburgh, Edinburgh, UK
- Department of Internal Medicine
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Krakow, Poland
| | - George Pavlidis
- Preventive Cardiology Laboratory and Clinic of Cardiometabolic Diseases, 2 Cardiology Department, Attikon Hospital, Athens
- Medical School, National and Kapodistrian University of Athens, Greece
| | - Simon Tual-Chalot
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK
| | | | - Panagiota Anyfanti
- Second Medical Department, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Livia L Camargo
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
- Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, Canada
| | - Edyta Dąbrowska
- Department of Hypertension and Diabetology, Center of Translational Medicine
- Center of Translational Medicine
| | - Fosca Quarti-Trevano
- Clinica Medica, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Marcin Hellmann
- Department of Cardiac Diagnostics, Medical University, Gdansk, Poland
| | - Stefano Masi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
- Institute of Cardiovascular Science, University College London, London, UK
| | - Georgios Mavraganis
- Angiology and Endothelial Pathophysiology Unit, Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, Athens
| | - Augusto C Montezano
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
- Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, Canada
| | - Francesco J Rios
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
- Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, Canada
| | | | - Jacek Wolf
- Department of Hypertension and Diabetology, Center of Translational Medicine
| | - Sarah Costantino
- Center for Translational and Experimental Cardiology (CTEC), Department of Cardiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- University Heart Center, Cardiology, University Hospital Zurich
| | - Eugenia Gkaliagkousi
- Third Department of Internal Medicine, Aristotle University of Thessaloniki, Papageorgiou Hospital, Thessaloniki, Greece
| | - Guido Grassi
- Clinica Medica, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Tomasz J Guzik
- Centre for Cardiovascular Sciences; Queen's Medical Research Institute; University of Edinburgh, University of Edinburgh, Edinburgh, UK
- Department of Internal Medicine
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Krakow, Poland
| | - Ignatios Ikonomidis
- Preventive Cardiology Laboratory and Clinic of Cardiometabolic Diseases, 2 Cardiology Department, Attikon Hospital, Athens
- Medical School, National and Kapodistrian University of Athens, Greece
| | | | - Francesco Paneni
- Center for Translational and Experimental Cardiology (CTEC), Department of Cardiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- University Heart Center, Cardiology, University Hospital Zurich
- Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
| | - Damiano Rizzoni
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia
- Division of Medicine, Spedali Civili di Brescia, Montichiari, Brescia, Italy
| | - Kimon Stamatelopoulos
- Angiology and Endothelial Pathophysiology Unit, Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, Athens
| | - Konstantinos Stellos
- Biosciences Institute, Vascular Biology and Medicine Theme, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK
- Department of Cardiovascular Research, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University
- German Centre for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislauf-Forschung, DZHK), Heidelberg/Mannheim Partner Site
- Department of Cardiology, University Hospital Mannheim, Heidelberg University, Manheim, Germany
| | - Stefano Taddei
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
- Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, Canada
| | - Areti Triantafyllou
- Third Department of Internal Medicine, Aristotle University of Thessaloniki, Papageorgiou Hospital, Thessaloniki, Greece
| | - Agostino Virdis
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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34
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Ruddy TD, Tavoosi A, Taqueti VR. Role of nuclear cardiology in diagnosis and risk stratification of coronary microvascular disease. J Nucl Cardiol 2023; 30:1327-1340. [PMID: 35851643 DOI: 10.1007/s12350-022-03051-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 05/22/2022] [Indexed: 10/17/2022]
Abstract
Coronary flow reserve (CFR) with positron emission tomography/computed tomography (PET/CT) has an important role in the diagnosis of coronary microvascular disease (CMD), aids risk stratification and may be useful in monitoring therapy. CMD contributes to symptoms and a worse prognosis in patients with coronary artery disease (CAD), nonischemic cardiomyopathies, and heart failure. CFR measurements may improve our understanding of the role of CMD in symptoms and prognosis in CAD and other cardiovascular diseases. The clinical presentation of CAD has changed. The prevalence of nonobstructive CAD has increased to about 50% of patients with angina undergoing angiography. Ischemia with nonobstructive arteries (INOCA) is recognized as an important cause of symptoms and has an adverse prognosis. Patients with INOCA may have ischemia due to CMD, epicardial vasospasm or diffuse nonobstructive CAD. Reduced CFR in patients with INOCA identifies a high-risk group that may benefit from management strategies specific for CMD. Although measurement of CFR by PET/CT has excellent accuracy and repeatability, use is limited by cost and availability. CFR measurement with single-photon emission tomography (SPECT) is feasible, validated, and would increase availability and use of CFR. Patients with CMD can be identified by reduced CFR and selected for specific therapies.
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Affiliation(s)
- Terrence D Ruddy
- Division of Cardiology, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada.
| | - Anahita Tavoosi
- Division of Cardiology, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, ON, K1Y 4W7, Canada
| | - Viviany R Taqueti
- Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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35
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Brown SSG, Westwater ML, Seidlitz J, Ziauddeen H, Fletcher PC. Hypothalamic volume is associated with body mass index. Neuroimage Clin 2023; 39:103478. [PMID: 37558541 PMCID: PMC10509524 DOI: 10.1016/j.nicl.2023.103478] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/19/2023] [Accepted: 07/18/2023] [Indexed: 08/11/2023]
Abstract
The hypothalamus is an important neuroendocrine hub for the control of appetite and satiety. In animal studies it has been established that hypothalamic lesioning or stimulation causes alteration to feeding behaviour and consequently body mass, and exposure to high calorie diets induces hypothalamic inflammation. These findings suggest that alterations in hypothalamic structure and function are both a cause and a consequence of changes to food intake. However, there is limited in vivo human data relating the hypothalamus to obesity or eating disorders, in part due to technical problems relating to its small size. Here, we used a novel automated segmentation algorithm to exploratorily investigate the relationship between hypothalamic volume, normalised to intracranial volume, and body mass index (BMI). The analysis was applied across four independent datasets comprising of young adults (total n = 1,351 participants) spanning a range of BMIs (13.3 - 47.8 kg/m2). We compared underweight (including individuals with anorexia nervosa), healthy weight, overweight and obese individuals in a series of complementary analyses. We report that overall hypothalamic volume is significantly larger in overweight and obese groups of young adults. This was also observed for a number of hypothalamic sub-regions. In the largest dataset (the HCP-Young Adult dataset (n = 1111)) there was a significant relationship between hypothalamic volume and BMI. We suggest that our findings of a positive relationship between hypothalamic volume and BMI is potentially consistent with hypothalamic inflammation as seen in animal models in response to high fat diet, although more research is needed to establish a causal relationship. Overall, we present novel, in vivo findings that link elevated BMI to altered hypothalamic structure. This has important implications for study of the neural mechanisms of obesity in humans.
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Affiliation(s)
- Stephanie S G Brown
- Department of Psychiatry, University of Cambridge, Addenbrookes Hospital, Cambridge CB2 0QQ, United Kingdom.
| | - Margaret L Westwater
- Department of Psychiatry, University of Cambridge, Addenbrookes Hospital, Cambridge CB2 0QQ, United Kingdom; Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford OX3 7JX, United Kingdom
| | - Jakob Seidlitz
- Department of Child and Adolescent Psychiatry and Behavioral Science, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA; Lifespan Brain Institute of Children's Hospital of Philadelphia and University of Pennsylvania, Philadelphia, PA, USA
| | - Hisham Ziauddeen
- Department of Psychiatry, University of Cambridge, Addenbrookes Hospital, Cambridge CB2 0QQ, United Kingdom
| | - Paul C Fletcher
- Department of Psychiatry, University of Cambridge, Addenbrookes Hospital, Cambridge CB2 0QQ, United Kingdom; Wellcome Trust MRC Institute of Metabolic Science, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, United Kingdom; Cambridgeshire and Peterborough NHS Trust, United Kingdom
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36
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Mohammed AQ, Abdu FA, Su Y, Liu L, Yin G, Feng Y, Zhang W, Xu Y, Xu D, Che W. Prognostic Significance of Coronary Microvascular Dysfunction in Patients With Heart Failure With Preserved Ejection Fraction. Can J Cardiol 2023; 39:971-980. [PMID: 37086837 DOI: 10.1016/j.cjca.2023.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 04/09/2023] [Accepted: 04/15/2023] [Indexed: 04/24/2023] Open
Abstract
BACKGROUND The prognostic impact of coronary microvascular dysfunction (CMD) has been scarcely addressed in heart failure with preserved ejection fraction (HFpEF). This study investigated the prevalence and prognostic significance of CMD as measured by a novel pressure wire-free coronary angiography-derived index of microcirculatory resistance (caIMR) on clinical outcomes. METHODS Patients diagnosed with HFpEF from 2019 to 2021 were enrolled retrospectively. caIMR was used to quantify microvascular function, and patients were categorised into 2 groups based on their caIMR. The primary end points were composite of all-cause death and heart failure rehospitalisation. RESULTS Of 137 HFpEF patients, CMD (defined as caIMR ≥ 25) was present in 88 patients (64.2%). Forty-five patients (32.8%) experienced composite events during a mean follow-up of 15 months. Compared with patients with caIMR < 25, those with caIMR ≥ 25 had a notably higher incidence of composite events (16.3% vs 42.0%; P = 0.002). On survival analysis, patients with caIMR ≥ 25 demonstrated a worse prognosis than those with caIMR < 25 for composite events (P = 0.006). Patients with caIMR ≥ 25 in multiple coronary arteries showed a trend to worse outcome than those with caIMR ≥ 25 in a single coronary artery (log-rank P = 0.056). In adjusted analysis, caIMR ≥ 25 was independently predictive of adverse outcomes (adjusted hazard ratio 2.93, 95% confidence interval [CI] 1.28-6.70; P = 0.010). caIMR displayed a significant predictive power for adverse event prediction (area under the receiver operating characteristic curve 0.767, 95% CI 0.677-0.858; P < 0.001). CONCLUSIONS CMD is highly prevalent and is an independent predictor of adverse outcomes in HFpEF patients. Assessment of CMD may identify high-risk patients early for intensified treatment and risk-factor management.
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Affiliation(s)
- Abdul-Quddus Mohammed
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fuad A Abdu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yang Su
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lu Liu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Guoqing Yin
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | | | - Wen Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yawei Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Dachun Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Wenliang Che
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China; Department of Cardiology, Shanghai Tenth People's Hospital Chongming Branch, Shanghai, China.
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Abstract
Hypertrophic cardiomyopathy is one of the most frequently diagnosed primary conditions of the heart muscle. It is considered to be inherited, caused by genetic mutations encoding for sarcomere proteins. The marked heterogeneity in clinical manifestations and natural course of the disease, even among family members sharing the same genetic mutation, has raised the question of non-genetic environmental factors contributing to the phenotype. Obesity has been associated with worse cardiovascular outcomes in the general population. Its prevalence is increased in hypertrophic cardiomyopathy, and the two conditions share some similar pathophysiological and clinical characteristics. In this review, we aim to summarise the effects of obesity in the cardiac phenotype, the symptoms and management in patients with hypertrophic cardiomyopathy.
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Affiliation(s)
| | - Konstantinos Savvatis
- Barts Health NHS Trust, London, UK; William Harvey Research Institute, Queen Mary University London, UK; Institute for Cardiovascular Science, University College London, London, UK
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Stencel J, Alai HR, Dhore-patil A, Urina-Jassir D, Le Jemtel TH. Obesity, Preserved Ejection Fraction Heart Failure, and Left Ventricular Remodeling. J Clin Med 2023; 12:3341. [PMID: 37176781 PMCID: PMC10179420 DOI: 10.3390/jcm12093341] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/30/2023] [Accepted: 05/06/2023] [Indexed: 05/15/2023] Open
Abstract
Owing to the overwhelming obesity epidemic, preserved ejection fraction heart failure commonly ensues in patients with severe obesity and the obese phenotype of preserved ejection fraction heart failure is now commonplace in clinical practice. Severe obesity and preserved ejection fraction heart failure share congruent cardiovascular, immune, and renal derangements that make it difficult to ascertain whether the obese phenotype of preserved ejection fraction heart failure is the convergence of two highly prevalent conditions or severe obesity enables the development and progression of the syndrome of preserved ejection fraction heart failure. Nevertheless, the obese phenotype of preserved ejection fraction heart failure provides a unique opportunity to assess whether sustained and sizeable loss of excess body weight via metabolic bariatric surgery reverses the concentric left ventricular remodeling that patients with preserved ejection fraction heart failure commonly display.
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Affiliation(s)
- Jason Stencel
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, Tulane University Heart and Vascular Institute, New Orleans, LA 70112, USA; (J.S.); (H.R.A.); (A.D.-p.); (D.U.-J.)
| | - Hamid R. Alai
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, Tulane University Heart and Vascular Institute, New Orleans, LA 70112, USA; (J.S.); (H.R.A.); (A.D.-p.); (D.U.-J.)
- Southeast Louisiana VA Healthcare System (SLVHCS), New Orleans, LA 70119, USA
| | - Aneesh Dhore-patil
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, Tulane University Heart and Vascular Institute, New Orleans, LA 70112, USA; (J.S.); (H.R.A.); (A.D.-p.); (D.U.-J.)
| | - Daniela Urina-Jassir
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, Tulane University Heart and Vascular Institute, New Orleans, LA 70112, USA; (J.S.); (H.R.A.); (A.D.-p.); (D.U.-J.)
| | - Thierry H. Le Jemtel
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, Tulane University Heart and Vascular Institute, New Orleans, LA 70112, USA; (J.S.); (H.R.A.); (A.D.-p.); (D.U.-J.)
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Souza AC, Amelie S T, Jan P M, Filipe A M, Sanjay D, Jon H, Ron B, Sharmila D, Marcelo F DC, Florian J F, Viviany R T. Intermuscular Adiposity is Associated with Coronary Microvascular Dysfunction Independently of Body Mass Index and Modifies its Effect on Adverse Cardiovascular Outcomes. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.05.03.23289408. [PMID: 37205484 PMCID: PMC10187458 DOI: 10.1101/2023.05.03.23289408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Background: Skeletal muscle (SM) fat infiltration, or intermuscular adipose tissue (IMAT), reflects muscle quality and is associated with inflammation, a key determinant in cardiometabolic disease. Coronary flow reserve (CFR), a marker of coronary microvascular dysfunction (CMD), is independently associated with BMI, inflammation and risk of heart failure, myocardial infarction and death. We sought to investigate the relationship between skeletal muscle quality, CMD and cardiovascular outcomes. Methods: Consecutive patients (N=669) undergoing evaluation for CAD with cardiac stress PET demonstrating normal perfusion and preserved left ventricular ejection fraction were followed over median 6 years for major adverse cardiovascular events (MACE), including death and hospitalization for myocardial infarction or heart failure. CFR was calculated as stress/rest myocardial blood flow and CMD defined as CFR<2. Subcutaneous adipose tissue (SAT), SM and IMAT areas (cm 2 ) were obtained from simultaneous PET attenuation correction CTs using semi-automated segmentation at the twelfth thoracic vertebra (T12) level. Results: Median age was 63 years, 70% were female and 46% nonwhite. Nearly half of patients were obese (46%, BMI 30-61) and BMI correlated highly with SAT and IMAT (r=0.84 and 0.71, respectively, p<0.001) and moderately with SM (r=0.52, p<0.001). Decreased SM and increased IMAT, but not BMI or SAT, remained independently associated with decreased CFR (adjusted p=0.03 and p=0.04, respectively). In adjusted analyses, both lower CFR and higher IMAT were associated with increased MACE [HR 1.78 (1.23-2.58) per -1U CFR and 1.53 (1.30-1.80) per +10 cm 2 IMAT, adjusted p=0.002 and p<0.0001, respectively], while higher SM and SAT were protective [HR 0.89 (0.81-0.97) per +10 cm 2 SM and 0.94 (0.91-0.98) per +10 cm 2 SAT, adjusted p=0.01 and 0.003, respectively]. Every 1% increase in fatty muscle fraction [IMAT/(SM+IMAT)] conferred an independent 2% increased odds of CMD [CFR<2, OR 1.02 (1.01-1.04), adjusted p=0.04] and a 7% increased risk of MACE [HR 1.07 (1.04-1.09), adjusted p<0.001]. There was a significant interaction between CFR and IMAT, not BMI, such that patients with both CMD and fatty muscle demonstrated highest MACE risk (adjusted p=0.02). Conclusion: Increased intermuscular fat is associated with CMD and adverse cardiovascular outcomes independently of BMI and conventional risk factors. The presence of CMD and skeletal muscle fat infiltration identified a novel at-risk cardiometabolic phenotype.
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40
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Liao LP, Wu L, Yang Y. The relationship between triglyceride/high-density lipoprotein cholesterol ratio and coronary microvascular disease. BMC Cardiovasc Disord 2023; 23:228. [PMID: 37131145 PMCID: PMC10155446 DOI: 10.1186/s12872-023-03229-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 04/06/2023] [Indexed: 05/04/2023] Open
Abstract
BACKGROUND As a novel marker of insulin resistance, the ratio of triglyceride/high-density lipoprotein cholesterol (TG/HDL-C) has been recently reported to be related to the occurrence of coronary artery diseases. However, no research has been conducted to probe whether the TG/HDL-C ratio is associated with the occurrence of coronary microvascular disease (CMVD). AIM This study investigates the association between the TG/HDL-C ratio and the occurrence of CMVD. METHODS This study included 175 patients diagnosed with CMVD in the Department of Cardiology of our hospital from October 2017 to October 2021 as the study group and 175 patients with no chest pain, no history of cardiovascular disease and drug use, and negative results of exercise treadmill testing as the non-CMVD group. The clinical data of the two groups were compared. In addition, the risk factors of CMVD were analyzed with logistic regression, and the efficacy of independent risk factors in predicting CMVD was analyzed with a receiver operating characteristic (ROC) curve. RESULTS Compared with those in the non-CMVD group, the proportion of females, the incidence of hypertension and type 2 diabetes, the level of platelet count, TG, and C-reactive protein, and the ratio of TG/HDL-C were increased in the CMVD group, accompanied by decreased levels of albumin and HDL-C (P < 0.05). Logistic regression results revealed C-reactive protein (the area under the ROC curve [AUC] value: 0.754; 95% confidence interval [CI]: 0.681-0.827), sex (the AUC value: 0.651; 95%CI: 0.571-0.730), albumin (the AUC value: 0.722; 95%CI: 0.649-0.794), and TG/HDL-C ratio (the AUC value: 0.789; 95%CI: 0.718-0.859) as the independent risk factors of CMVD. CONCLUSION The TG/HDL-C ratio is an independent risk factor for the occurrence of CMVD.
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Affiliation(s)
- Li Ping Liao
- Cardiology Department, Jiading Branch of Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 800 Huangjiahuayuan Road, Shanghai, 201803, China.
| | - Lei Wu
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230000, China
| | - Yang Yang
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230000, China
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Shah SA, Reagan CE, Bresticker JE, Wolpe AG, Good ME, Macal EH, Billcheck HO, Bradley LA, French BA, Isakson BE, Wolf MJ, Epstein FH. Obesity-Induced Coronary Microvascular Disease Is Prevented by iNOS Deletion and Reversed by iNOS Inhibition. JACC Basic Transl Sci 2023; 8:501-514. [PMID: 37325396 PMCID: PMC10264569 DOI: 10.1016/j.jacbts.2022.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 02/04/2023]
Abstract
Coronary microvascular disease (CMD) caused by obesity and diabetes is major contributor to heart failure with preserved ejection fraction; however, the mechanisms underlying CMD are not well understood. Using cardiac magnetic resonance applied to mice fed a high-fat, high-sucrose diet as a model of CMD, we elucidated the role of inducible nitric oxide synthase (iNOS) and 1400W, an iNOS antagonist, in CMD. Global iNOS deletion prevented CMD along with the associated oxidative stress and diastolic and subclinical systolic dysfunction. The 1400W treatment reversed established CMD and oxidative stress and preserved systolic/diastolic function in mice fed a high-fat, high-sucrose diet. Thus, iNOS may represent a therapeutic target for CMD.
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Affiliation(s)
- Soham A. Shah
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Claire E. Reagan
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Julia E. Bresticker
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Abigail G. Wolpe
- The Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia, USA
| | - Miranda E. Good
- The Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia, USA
| | - Edgar H. Macal
- The Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia, USA
| | - Helen O. Billcheck
- Department of Cardiovascular Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Leigh A. Bradley
- Department of Cardiovascular Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Brent A. French
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia, USA
| | - Brant E. Isakson
- The Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia, USA
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia, USA
| | - Matthew J. Wolf
- The Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia, USA
- Department of Cardiovascular Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Frederick H. Epstein
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
- The Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia, USA
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42
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Bai W, Huang W, Xu R, Fu H, Zou Q, Chen L, Xu H, Wen L, Xie L, Wu J, Guo Y. Evaluation of coronary microvascular dysfunction and risk factors in children and youth with Turner syndrome by magnetic resonance myocardial perfusion imaging. Clin Endocrinol (Oxf) 2023; 98:578-586. [PMID: 36536468 DOI: 10.1111/cen.14866] [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: 09/05/2022] [Revised: 11/11/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Turner syndrome (TS) has an increased predisposition to ischaemic heart disease and the status of coronary microcirculation in TS is largely unknown. This study aims to evaluate myocardial microvascular function in TS using first-pass magnetic resonance perfusion imaging and determine significant risk factors contributing to microvascular dysfunction in the early stage. DESIGN Perspective cohort study. PATIENTS The study cohort consisted of 67 children and youth with TS and 32 age- and gender-matched controls. Measurements Clinical characteristics, left ventricle (LV) volume and function and cardiovascular magnetic resonance-derived myocardial perfusion parameters were assessed. Univariable and multivariable linear regression analyses were performed to assess the potential risk factors for microvascular dysfunction. RESULT Microvascular perfusion decreased in TS in global and segmented myocardium as reflected in the lower upslopecor and maximum signal intensity (MaxSI) of LV myocardium compared to controls. Multivariable linear regression analysis indicated that age (β = -0.107, 95% confidence interval [CI] = -0.201 to -0.013, p = .026) and being overweight/obese (β = -1.155, CI = -2.134 to -0.176, p = .021) were independent impact factors of microvascular dysfunction. Subgroup analysis showed the upslopecor of older patients with TS decreased more significantly compared with that of normal controls. Upslopecor and MaxSI were lower in overweight/obese patients with TS than in patients with normal body mass index (BMI) and controls. CONCLUSION Myocardial microvascular dysfunction can occur in children and youth patients with TS. Age and overweight/obesity were the independent risk factors of microvascular dysfunction, which imply the importance of lowering BMI for the prevention of coronary heart disease in young TS population.
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Affiliation(s)
- Wei Bai
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Huang
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Rong Xu
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hang Fu
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qing Zou
- Department of Radiology, Deyang People's Hospital, Deyang, Sichuan, China
| | - Lin Chen
- Department of Radiology, Su Zhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Huayan Xu
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lingyi Wen
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Linjun Xie
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jin Wu
- Department of Pediatric Endocrinology and Metabolism, Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second Hospital of Sichuan University, Chengdu, China
| | - Yingkun Guo
- Department of Radiology, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
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43
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Divakaran S, Caron JP, Zhou W, Hainer J, Bibbo CF, Skali H, Taqueti VR, Dorbala S, Blankstein R, Groarke JD, Nohria A, Di Carli MF. Coronary vasomotor dysfunction portends worse outcomes in patients with breast cancer. J Nucl Cardiol 2022; 29:3072-3081. [PMID: 34820770 PMCID: PMC9126993 DOI: 10.1007/s12350-021-02825-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/17/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Impaired MFR in the absence of flow-limiting CAD is associated with adverse events. Cardiovascular disease is an important cause of morbidity and mortality in patients with breast cancer. We sought to test the utility of MFR to predict outcomes in a cohort of patients with breast cancer. METHODS We retrospectively studied consecutive patients with breast cancer or breast cancer survivors who underwent cardiac stress PET imaging from 2006 to 2017 at Brigham and Women's Hospital. Patients with a history of clinically overt CAD, LVEF < 45%, or abnormal myocardial perfusion were excluded. Subjects were followed from time of PET to the occurrence of a first major adverse cardiovascular event (MACE) and all-cause death. RESULTS The final cohort included 87 patients (median age 69.0 years, 98.9% female, mean MFR 2.05). Over a median follow-up of 7.6 years after PET, the lowest MFR tertile was associated with higher cumulative incidence of MACE (adjusted subdistribution hazard ratio 4.91; 95% CI 1.68-14.38; p = 0.004) when compared with the highest MFR tertile. CONCLUSIONS In patients with breast cancer, coronary vasomotor dysfunction was associated with incident cardiovascular events. MFR may have potential as a risk stratification biomarker among patients with/survivors of breast cancer.
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Affiliation(s)
- Sanjay Divakaran
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jesse P Caron
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Wunan Zhou
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
| | - Jon Hainer
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
| | - Courtney F Bibbo
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
| | - Hicham Skali
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Viviany R Taqueti
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
| | - Sharmila Dorbala
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
| | - Ron Blankstein
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - John D Groarke
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Anju Nohria
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Marcelo F Di Carli
- Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, ASB-L1 037C, Boston, MA, 02115, USA.
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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Mehta PK, Huang J, Levit RD, Malas W, Waheed N, Bairey Merz CN. Ischemia and no obstructive coronary arteries (INOCA): A narrative review. Atherosclerosis 2022; 363:8-21. [PMID: 36423427 PMCID: PMC9840845 DOI: 10.1016/j.atherosclerosis.2022.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 10/30/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
Abstract
Myocardial ischemia with no obstructive coronary arteries (INOCA) is a chronic coronary syndrome condition that is increasingly being recognized as a substantial contributor to adverse cardiovascular mortality and outcomes, including myocardial infarction and heart failure with preserved ejection fraction (HFpEF). While INOCA occurs in both women and men, women are more likely to have the finding of INOCA and are more adversely impacted by angina, with recurrent hospitalizations and a lower quality of life with this condition. Abnormal epicardial coronary vascular function and coronary microvascular dysfunction (CMD) have been identified in a majority of INOCA patients on invasive coronary function testing. CMD can co-exist with obstructive epicardial coronary artery disease (CAD), diffuse non-obstructive epicardial CAD, and with coronary vasospasm. Epicardial vasospasm can also occur with normal coronary arteries that have no atherosclerotic plaque on intravascular imaging. While all predisposing factors are not clearly understood, cardiometabolic risk factors, and endothelium dependent and independent mechanisms that increase oxidative stress and inflammation are associated with microvascular injury, CMD and INOCA. Cardiac autonomic dysfunction has also been implicated in abnormal vasoreactivity and persistent symptoms. INOCA is under-recognized and under-diagnosed, partly due to the heterogenous patient populations and mechanisms. However, diagnostic testing methods are available to guide INOCA management. Treatment of INOCA is evolving, and focuses on cardiac risk factor control, improving ischemia, reducing atherosclerosis progression, and improving angina and quality of life. This review focuses on INOCA, relations to HFpEF, available diagnostics, current and investigational therapeutic strategies, and knowledge gaps in this condition.
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Affiliation(s)
- Puja K Mehta
- Emory Women's Heart Center and Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Emory University School of Medicine, Atlanta, GA, USA.
| | - Jingwen Huang
- J. Willis Hurst Internal Medicine Residency Training Program, Emory University School of Medicine, Atlanta, GA, USA
| | - Rebecca D Levit
- Division of Cardiology, Emory University School of Medicine, Atlanta, GA, USA
| | - Waddah Malas
- Cardiovascular Disease Fellowship Training Program, Loyola Medical Center, Chicago, IL, USA
| | - Nida Waheed
- Cardiovascular Disease Fellowship Training Program, Emory University School of Medicine, Atlanta, GA, USA
| | - C Noel Bairey Merz
- Barbra Streisand Women's Heart Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, USA
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45
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Osborne MT, Grewal S, Neilan TG. Call on the reserve: Coronary vasomotor dysfunction is a potential biomarker of cardiovascular risk in patients with breast cancer. J Nucl Cardiol 2022; 29:3082-3085. [PMID: 34907499 PMCID: PMC9192821 DOI: 10.1007/s12350-021-02831-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 09/29/2021] [Indexed: 01/22/2023]
Affiliation(s)
- Michael T Osborne
- Cardiology Division, Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St., Yawkey 5E, Boston, MA, 02114-2750, USA.
| | - Simran Grewal
- Cardiology Division, Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St., Yawkey 5E, Boston, MA, 02114-2750, USA
| | - Tomas G Neilan
- Cardiology Division, Cardiovascular Imaging Research Center, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St., Yawkey 5E, Boston, MA, 02114-2750, USA
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46
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Chen D, Fu M, Chi L, Lin L, Cheng J, Xue W, Long C, Jiang W, Dong X, Sui J, Lin D, Lu J, Zhuo S, Liu S, Li G, Chen G, Yan J. Prognostic and predictive value of a pathomics signature in gastric cancer. Nat Commun 2022; 13:6903. [PMID: 36371443 PMCID: PMC9653436 DOI: 10.1038/s41467-022-34703-w] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 11/03/2022] [Indexed: 11/13/2022] Open
Abstract
The current tumour-node-metastasis (TNM) staging system alone cannot provide adequate information for prognosis and adjuvant chemotherapy benefits in patients with gastric cancer (GC). Pathomics, which is based on the development of digital pathology, is an emerging field that might improve clinical management. Herein, we propose a pathomics signature (PSGC) that is derived from multiple pathomics features of haematoxylin and eosin-stained slides. We find that the PSGC is an independent predictor of prognosis. A nomogram incorporating the PSGC and TNM staging system shows significantly improved accuracy in predicting the prognosis compared to the TNM staging system alone. Moreover, in stage II and III GC patients with a low PSGC (but not in those with a high PSGC), satisfactory chemotherapy benefits are observed. Therefore, the PSGC could serve as a prognostic predictor in patients with GC and might be a potential predictive indicator for decision-making regarding adjuvant chemotherapy.
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Affiliation(s)
- Dexin Chen
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
- School of Science, Jimei University, 361021, Xiamen, P.R. China
| | - Meiting Fu
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
| | - Liangjie Chi
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
- Department of Gastrointestinal Surgery, Fujian Provincial Hospital, Teaching Hospital of Fujian Medical University, 350001, Fuzhou, P.R. China
| | - Liyan Lin
- Department of Pathology, Fujian Key Laboratory of Translational Cancer Medicine, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, 350014, Fuzhou, P.R. China
| | - Jiaxin Cheng
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
| | - Weisong Xue
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
| | - Chenyan Long
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
| | - Wei Jiang
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
| | - Xiaoyu Dong
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
| | - Jian Sui
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
- Department of Gastrointestinal Surgery, Fujian Provincial Hospital, Teaching Hospital of Fujian Medical University, 350001, Fuzhou, P.R. China
| | - Dajia Lin
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China
- Department of Gastrointestinal Surgery, Fujian Provincial Hospital, Teaching Hospital of Fujian Medical University, 350001, Fuzhou, P.R. China
| | - Jianping Lu
- Department of Pathology, Fujian Key Laboratory of Translational Cancer Medicine, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, 350014, Fuzhou, P.R. China
| | - Shuangmu Zhuo
- School of Science, Jimei University, 361021, Xiamen, P.R. China.
| | - Side Liu
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China.
| | - Guoxin Li
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China.
| | - Gang Chen
- Department of Pathology, Fujian Key Laboratory of Translational Cancer Medicine, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, 350014, Fuzhou, P.R. China.
| | - Jun Yan
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, P.R. China.
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Gao J, Meng T, Li M, Du R, Ding J, Li A, Yu S, Li Y, He Q. Global trends and frontiers in research on coronary microvascular dysfunction: a bibliometric analysis from 2002 to 2022. Eur J Med Res 2022; 27:233. [PMID: 36335406 PMCID: PMC9636644 DOI: 10.1186/s40001-022-00869-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 10/25/2022] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Coronary microvascular dysfunction (CMD) is a leading cause of ischemic heart disease. Over the past few decades, considerable progress has been made with respect to research on CMD. The present study summarized the current research hotspots and trends on CMD by applying a bibliometric approach. METHODS Relevant publications between 2002 and 2022 were extracted from the Web of Science Core Collection. Visualization network maps of countries, institutions, authors, and co-cited authors were built using VOSviewer. CiteSpace was used for keyword analysis and the construction of a dual-map overlay of journals and a timeline view of co-cited references. RESULTS 1539 CMD-related publications were extracted for bibliometric analysis. The annual publications generally showed an upward trend. The United States of America was the most prolific country, with 515 publications (33.5%). Camici P. G. was the most influential author, whereas the European Heart Journal, Circulation, and Journal of the American College of Cardiology were the most authoritative journals. Research hotspot analysis revealed that endothelial dysfunction as well as reduced nitric oxide production or bioavailability played critical roles in CMD development. Positron emission tomography was the most widely used imaging method for diagnosis. In addition, microvascular angina, hypertrophic cardiomyopathy, and heart failure have attracted much attention as the main clinical implications. Furthermore, international standards for CMD diagnosis and management may be the future research directions. CONCLUSIONS This study offers a comprehensive view about the hotspots and development trends of CMD, which can assist subsequent researchers and guide future directions.
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Affiliation(s)
- Jing Gao
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Tiantian Meng
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Min Li
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ruolin Du
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jingyi Ding
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Anqi Li
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shanshan Yu
- Graduate School, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Yixiang Li
- Graduate School, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Qingyong He
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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48
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Wang R, Li X, Huangfu S, Yao Q, Wu P, Wu Z, Li L, Wang Y, Yang M, Hacker M, Zhou H, Yan R, Li S. Combining body mass index with waist circumference to assess coronary microvascular function in patients with non-obstructive coronary artery disease. J Nucl Cardiol 2022; 29:2434-2445. [PMID: 34476781 PMCID: PMC9553765 DOI: 10.1007/s12350-021-02788-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 08/12/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND Coronary microvascular dysfunction (CMD) may precede clinically overt coronary artery disease (CAD). Overall and central obesity (CO) are major risk factors for CAD. This study sought to investigate the subclinical significance of body adiposity patterns based on the CMD risk. METHODS A total of 128 patients with non-obstructive CAD were prospectively enrolled. Patients were categorized into 4 anthropometric groups: normal weight and non-CO (NWNCO, n = 41), normal weight and CO (NWCO, n = 20), excess weight and non-CO (EWNCO, n = 26), and excess weight and CO (EWCO, n = 41). Patients underwent rest/stress electrocardiography-gated 13N-ammonia positron emission tomography to measure absolute myocardial blood flow (MBF), myocardial flow reserve (MFR), hemodynamic parameters, and cardiac function. RESULTS Resting MBF did not differ between groups (P = .36). Compared with the NWNCO group, hyperemic MBF and MFR were significantly lower in the NWCO and EWCO groups. Notably, patients with NWCO presented the lowest hyperemic MBF and MFR and the highest incidence of CMD. Waist circumference was an independent risk factor for CMD (OR 1.05, 95% CI 1.01 to 1.10, P = .02). CONCLUSION In patients with non-obstructive CAD, CO may be associated with an increased risk of CMD to better fit the study findings which did not assess management or monitoring of MBF and MFR.
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Affiliation(s)
- Ruonan Wang
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China
| | - Xiang Li
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Shihao Huangfu
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China
| | - Qi Yao
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China
| | - Ping Wu
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China
| | - Zhifang Wu
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China
- Collaborative Innovation Center for Molecular Imaging of Precision Medicine, Taiyuan, Shanxi, China
| | - Li Li
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China
| | - Yuetao Wang
- Department of Nuclear Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Minfu Yang
- Department of Nuclear Medicine, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Marcus Hacker
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Haitao Zhou
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China
| | - Rui Yan
- Shanxi Key Laboratory of Molecular Imaging, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Sijin Li
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, No. 85 Jiefang South Road, Taiyuan, 030001, Shanxi, China.
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, Shanxi, China.
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Grozdic Milojevic I, Kozarevic N, Sobic-Saranovic D. Novel nuclear medical procedures in the detection of microvascular dysfunction. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:1143-1150. [PMID: 36218212 DOI: 10.1002/jcu.23322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/25/2022] [Accepted: 07/14/2022] [Indexed: 06/16/2023]
Abstract
Coronary microvascular dysfunction is present in two-thirds of patients showing symptoms and signs of myocardial ischemia. Their microcirculation has abnormalities due to endothelial and smooth muscle cell dysfunction. Impairment of this mechanism causes a high risk of adverse cardiovascular event. Diagnosing coronary microvascular dysfunction is challenging. Guidelines recommend the use of nuclear medicine procedures in the above-mentioned indications. Myocardial perfusion imaging with positron emission tomography is a novel procedure with high diagnostic accuracy and quality of images. It has short acquisition, low effective radiation dose and prognostic factors. There are still unknowns about this procedure and all its benefits.
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Affiliation(s)
- Isidora Grozdic Milojevic
- Center for Nuclear Medicine, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nebojsa Kozarevic
- Center for Nuclear Medicine, University Clinical Center of Serbia, Belgrade, Serbia
| | - Dragana Sobic-Saranovic
- Center for Nuclear Medicine, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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50
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Pelletier-Galarneau M, Juneau D. On the relationship between coronary microvascular disease and obesity. J Nucl Cardiol 2022; 29:2446-2447. [PMID: 34697786 DOI: 10.1007/s12350-021-02835-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/04/2021] [Indexed: 10/20/2022]
Affiliation(s)
- Matthieu Pelletier-Galarneau
- Department of Medical Imaging, Institut de Cardiologie de Montréal, Montreal, QC, H1T 1C8, Canada.
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Daniel Juneau
- Department of Medical Imaging, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
- University of Ottawa Heart Institute, Ottawa, Canada
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