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Vilela EM, Oliveira C, Oliveira C, Torres S, Sampaio F, Primo J, Ribeiro J, Teixeira M, Oliveira M, Bettencourt N, Viamonte S, Fontes-Carvalho R. Sixty years of the Bruce protocol: reappraising the contemporary role of exercise stress testing with electrocardiographic monitoring. Porto Biomed J 2023; 8:e235. [PMID: 37846299 PMCID: PMC10575366 DOI: 10.1097/j.pbj.0000000000000235] [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: 09/02/2023] [Accepted: 09/18/2023] [Indexed: 10/18/2023] Open
Abstract
The cardiovascular response to exercise has long been a focus of interest. Over a century ago, the first descriptions of electrocardiographic changes occurring during exercise highlighted the possible relevance of this dynamic assessment. In this background, the inception of the Bruce protocol circa 60 years ago allowed for a major leap in this field by providing a standardized framework with which to address this issue, by means of an integrated and structured methodology. Since then, exercise stress testing with electrocardiographic monitoring (ExECG) has become one of the most widely appraised tests in cardiovascular medicine. Notably, past few decades have been profoundly marked by substantial advances in the approach to cardiovascular disease, challenging prior notions concerning both its physiopathology and overall management. Among these, the ever-evolving presentations of cardiovascular disease coupled with the development and implementation of several novel diagnostic modalities (both invasive and noninvasive) has led to a shifting paradigm in the application of ExECG. This technique, however, has continuously shown to be of added value across various momentums of the cardiovascular continuum, as depicted in several contemporary guidelines. This review provides a pragmatical reflexion on the development of ExECG, presenting a comprehensive overview concerning the current role of this modality, its challenges, and its future perspectives.
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Affiliation(s)
- Eduardo M. Vilela
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Cátia Oliveira
- Cardiology Department, Hospital de Braga, Braga, Portugal
- Faculty of Medicine, Minho University, Braga, Portugal
| | - Cláudia Oliveira
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Susana Torres
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Francisco Sampaio
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
- Cardiovascular Research Center (UniC@RISE), Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Primo
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - José Ribeiro
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Madalena Teixeira
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Marco Oliveira
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Nuno Bettencourt
- Cardiovascular Research Center (UniC@RISE), Faculty of Medicine, University of Porto, Porto, Portugal
| | - Sofia Viamonte
- North Rehabilitation Centre, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Ricardo Fontes-Carvalho
- Cardiology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
- Cardiovascular Research Center (UniC@RISE), Faculty of Medicine, University of Porto, Porto, Portugal
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Chao T, Sun J, Huan N, Ge Y, Wang C. Efficacy and safety of Qixue Tongzhi Granule in improving the exercise capacity of stable coronary artery disease: study protocol for a multicenter, randomized, double-blind, placebo-controlled trial. Front Cardiovasc Med 2023; 10:1186018. [PMID: 37663413 PMCID: PMC10470462 DOI: 10.3389/fcvm.2023.1186018] [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: 03/14/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
Background Despite optimal medical therapy, patients with stable coronary artery disease (SCAD) still have a high risk of recurrent cardiovascular events. Exercise capacity measured by cardiopulmonary exercise testing (CPET) is a good surrogate marker for the long-term prognosis of SCAD. Qixue Tongzhi Granule (QTG) is created by academician Chen Keji and has the function of tonifying qi, promoting blood circulation, and regulating qi-flowing. This trial aims to investigate the efficacy and safety of QTG in improving exercise tolerance, alleviating angina pectoris and anxiety/depression symptoms, promoting health-related quality of life, and reducing the risk of adverse cardiovascular events in subjects with SCAD. Methods This is a randomized, double-blind, placebo-controlled trial. 150 SCAD patients with qi deficiency, blood stasis, and liver qi stagnation syndrome are enrolled. Patients will be randomly allocated to the QTG or placebo groups at a 1:1 ratio. QTG and placebo will be added to the modern guideline-directed medical therapy for 12 weeks and patients will be followed up for another 24 weeks. The primary outcome is the improvement of metabolic equivalents measured by CPET. The secondary outcomes are cumulative incidence of composite endpoint events, other indicators in CPET, changes in the Seattle Angina Questionnaire, traditional Chinese medicine syndrome scale, 12 items of Short Form Health Survey Questionnaire, Patient Health Questionnaire-9, and Generalized Anxiety Disorder-7, changes of ST-T segment in the electrocardiogram, improvement of left ventricular ejection fraction and left ventricular end-diastolic diameter in echocardiography. In addition, metabolomics analysis will be performed based on blood samples. Adverse events and safety evaluations will also be documented. A full analysis set, per protocol set, and safety analysis set will be conducted. Discussion This clinical trial can enrich treatment options for CHD patients with low cardiorespiratory fitness and psychological imbalance, and it may also create a new situation for promoting the application of traditional Chinese medicine in cardiac rehabilitation.Clinical Trial Registration: [http://www.chictr.org.cn], identifier: [ChiCTR2200058988].
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Affiliation(s)
| | | | | | | | - Chenglong Wang
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Park S, Battumur B, Yoon SY, Lee Y, Park SH, Lee K, Back S, Lee J, Kang DO, Choi JY, Roh SY, Na JO, Choi CU, Kim JW, Rha SW, Park CG, Kim EJ. Korean vs. Western Exercise Capacity Nomograms for Korean Patients With Cardiovascular Disease. J Korean Med Sci 2023; 38:e179. [PMID: 37309698 DOI: 10.3346/jkms.2023.38.e179] [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: 10/31/2022] [Accepted: 02/24/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Exercise capacity is known to be an independent predictor of cardiovascular events and mortality. However, most previous studies were based on Western populations. Further study is warranted for Asian patients according to ethnic or national standards. We aimed to compare prognostic values of Korean and Western nomograms for exercise capacity in Korean patients with cardiovascular disease (CVD). METHODS In this retrospective cohort study, we enrolled 1,178 patients (62 ± 11 years; 78% male) between June 2015 and May 2020, who were referred for cardiopulmonary exercise testing in our cardiac rehabilitation program. The median follow-up period was 1.6 years. Exercise capacity was measured in metabolic equivalents by direct gas exchange method during the treadmill test. The nomogram for exercise capacity from healthy Korean individuals and a previous landmark Western study was used to determine the percentage of predicted exercise capacity. The primary endpoint was the composite of major adverse cardiovascular events (MACE; all-cause death, myocardial infarction, repeat revascularization, stroke and hospitalization for heart failure). RESULTS A multivariate analysis showed that the risk of primary endpoint was more than double (hazard ratio [HR], 2.20; 95% confidence interval [CI], 1.10-4.40) in the patients with lower exercise capacity (< 85% of predicted) by Korean nomogram. The lower exercise capacity was one of the strong independent predictors along with left ventricular ejection fraction, age, and level of hemoglobin. However, the lower exercise capacity by Western nomogram could not predict the primary endpoint (HR, 1.33; 95% CI, 0.85-2.10). CONCLUSION Korean patients with CVD with lower exercise capacity have higher risk of MACE. Considering inter-ethnic differences in cardiorespiratory fitness, the Korean nomogram provides more suitable reference values than the Western nomogram to determine lower exercise capacity and predict cardiovascular events in Korean patients with CVD.
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Affiliation(s)
- Soohyung Park
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Byambakhand Battumur
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Seo Yeon Yoon
- Department of Rehabilitation Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Yohan Lee
- Sport Medicine Center, Korea University Guro Hospital, Seoul, Korea
| | - Se Hyun Park
- Sport Medicine Center, Korea University Guro Hospital, Seoul, Korea
| | - Kyuho Lee
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Seungmin Back
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Jieun Lee
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Dong Oh Kang
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Jah Yeon Choi
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Seung-Young Roh
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Jin Oh Na
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Cheol Ung Choi
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Jin Won Kim
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Seung-Woon Rha
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Chang Gyu Park
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Eung Ju Kim
- Division of Cardiology, Department of Medicine, Korea University Guro Hospital, Seoul, Korea.
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Li H, Wei M, Zhang L, Huang L, Wang Y, Wang J, Zhuang S, Wu X, Wu J. Factors contributing to exercise tolerance in patients with coronary artery disease undergoing percutaneous coronary intervention. BMC Sports Sci Med Rehabil 2023; 15:35. [PMID: 36941646 PMCID: PMC10026462 DOI: 10.1186/s13102-023-00640-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/06/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND Exercise tolerance plays a vital role in the process of cardiac rehabilitation in patients undergoing percutaneous coronary intervention (PCI). The study sought to determine the characteristics, risks and correlates of post-PCI exercise tolerance in patients with coronary artery disease (CAD). METHODS We analyzed clinical data of 299 CAD patients undergoing elective PCI and completing cardiopulmonary exercise testing (CPET). According to the Weber classification, post-PCI exercise tolerance was evaluated by peak oxygen uptake (VO2 peak). We assessed the impact of 34 predefined clinical features, cardiac functional parameters, and blood biochemistry data on exercise tolerance by univariate analysis and logistics regression analysis. RESULTS Of 299 patients, 74.92% were men and average age was 60.90 ± 10.68 years. VO2 peak in the entire population was 17.54 ± 3.38 ml/kg/min, and 24.41% (n = 73) were less than 16 ml/kg/min, who were considered to have exercise intolerance. Multivariate logistics regression results showed that sex, diabetes mellitus, number of stents, left atrial diameter (LAD), end-diastolic volume (EDV), and hemoglobin influenced the peak oxygen uptake of CAD patients undergoing elective PCI. (All p < 0.05). CONCLUSIONS Nearly one quarter of CAD patients have exercise intolerance in the early post-PCI period. Female, diabetes mellitus, number of stents, LAD, EDV might negatively impacted post-PCI exercise tolerance, which need further warrant by large scale cohort study.
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Affiliation(s)
- Husheng Li
- School of Nursing, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, Pudong New District, Shanghai, 201203, China
- Department of Nursing, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Minqian Wei
- Department of Rehabilitation Therapy, Shanghai Seventh People's Hospital, No. 358, Datong Road, Pudong New District, Shanghai, 200137, China
| | - Lili Zhang
- Department of Rehabilitation Therapy, Shanghai Seventh People's Hospital, No. 358, Datong Road, Pudong New District, Shanghai, 200137, China
| | - Lan Huang
- School of Nursing, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, Pudong New District, Shanghai, 201203, China
| | - Yiyan Wang
- School of Nursing, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, Pudong New District, Shanghai, 201203, China
| | - Jiaqi Wang
- School of Nursing, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, Pudong New District, Shanghai, 201203, China
| | - Shaowei Zhuang
- Department of Cardiology, Shanghai Seventh People's Hospital, Shanghai, 200137, China
| | - Xubo Wu
- Department of Rehabilitation Therapy, Shanghai Seventh People's Hospital, No. 358, Datong Road, Pudong New District, Shanghai, 200137, China.
| | - Jing Wu
- School of Nursing, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, Pudong New District, Shanghai, 201203, China.
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Kurpaska M, Krzesiński P, Gielerak G, Gołębiewska K, Piotrowicz K. Cardiopulmonary exercise testing and impedance cardiography in the assessment of exercise capacity of patients with coronary artery disease early after myocardial revascularization. BMC Sports Sci Med Rehabil 2022; 14:134. [PMID: 35844003 PMCID: PMC9288716 DOI: 10.1186/s13102-022-00527-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/11/2022] [Indexed: 11/10/2022]
Abstract
Abstract
Background
Patients with coronary artery disease (CAD) are characterized by different levels of physical capacity, which depends not only on the anatomical advancement of atherosclerosis, but also on the individual cardiovascular hemodynamic response to exercise. The aim of this study was evaluating the relationship between parameters of exercise capacity assessed via cardiopulmonary exercise testing (CPET) and impedance cardiography (ICG) hemodynamics in patients with CAD.
Methods
Exercise capacity was assessed in 54 patients with CAD (41 men, aged 59.5 ± 8.6 years) within 6 weeks after revascularization by means of oxygen uptake (VO2), assessed via CPET, and hemodynamic parameters [heart rate (HR), stroke volume, cardiac output (CO), left cardiac work index (LCWi)], measured by ICG. Correlations between these parameters at anaerobic threshold (AT) and at the peak of exercise as well as their changes (Δpeak–rest, Δpeak–AT) were evaluated.
Results
A large proportion of patients exhibited reduced exercise capacity, with 63% not reaching 80% of predicted peak VO2. Clinically relevant correlations were noted between the absolute peak values of VO2 versus HR, VO2 versus CO, and VO2 versus LCWi (R = 0.45, p = 0.0005; R = 0.33, p = 0.015; and R = 0.40, p = 0.003, respectively). There was no correlation between AT VO2 and hemodynamic parameters at the AT time point. Furthermore ΔVO2 (peak–AT) correlated with ΔHR (peak–AT), ΔCO (peak–AT) and ΔLCWi (peak–AT) (R = 0.52, p < 0.0001, R = 0.49, p = 0.0001; and R = 0.49, p = 0.0001, respectively). ΔVO2 (peak–rest) correlated with ΔHR (peak–rest), ΔCO (peak–rest), and ΔLCWi (peak–rest) (R = 0.47, p < 0.0001; R = 0.41, p = 0.002; and R = 0.43, p = 0.001, respectively).
Conclusion
ICG is a reliable method of assessing the cardiovascular response to exercise in patients with CAD. Some ICG parameters show definite correlations with parameters of cardiovascular capacity of proven clinical utility, such as peak VO2.
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Reed JL, Terada T, Vidal-Almela S, Tulloch HE, Mistura M, Birnie DH, Wells GA, Nair GM, Hans H, Way KL, Chirico D, O’Neill CD, Pipe AL. Effect of High-Intensity Interval Training in Patients With Atrial Fibrillation: A Randomized Clinical Trial. JAMA Netw Open 2022; 5:e2239380. [PMID: 36315143 PMCID: PMC9623436 DOI: 10.1001/jamanetworkopen.2022.39380] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
IMPORTANCE Patients with atrial fibrillation (AF) experience poor functional capacity and quality of life (QOL). High-intensity interval training (HIIT) has been shown to elicit greater improvements in functional capacity and QOL compared with moderate to vigorous intensity continuous training (MICT) in other cardiovascular populations, yet HIIT remains understudied in AF. OBJECTIVE To compare the effects of 12 weeks of HIIT and MICT-based cardiovascular rehabilitation (CR) on functional capacity and general QOL in patients with persistent and permanent AF. Disease-specific QOL, resting heart rate (HR), time in AF, and physical activity (PA) levels were also assessed. DESIGN, SETTING, AND PARTICIPANTS This randomized clinical trial, conducted between November 17, 2015, and February 4, 2020, at a tertiary-care cardiovascular health center in Ottawa, Canada, recruited 94 patients with persistent and permanent AF. INTERVENTIONS High-intensity interval training (23 minutes: two 8-minute interval training blocks of 30-second work periods at 80%-100% of peak power output interspersed with 30-second recovery) or CR (60 minutes: continuous aerobic conditioning within 67%-95% of peak HR and 12-16 of 20 ratings of perceived exertion) twice weekly for 12 weeks. MAIN OUTCOMES AND MEASURES The primary outcomes were changes in functional capacity (6-minute walk test [6MWT] distance) and general QOL (Short Form 36) from baseline to 12 weeks' follow-up. Secondary outcomes included changes in disease-specific QOL (Atrial Fibrillation Severity Scale), resting HR, time in AF, and PA levels. An intention-to-treat analysis was used to compare changes between groups. RESULTS Of the 94 patients who consented, 86 participated (mean [SD] age, 69 [7] years; 57 [66.3%] men). No significant differences in improvements in 6MWT distance (mean [SD], 21.3 [34.1] vs 13.2 [55.2] m; P = .42) and general QOL (Physical Component Summary, 0.5 [6.1] vs 1.1 [4.9] points; P = .87) between HIIT and CR were observed. No significant differences in improvements in disease-specific QOL (AF symptoms: -1.7 [4.3] vs -1.5 [4] points, P = .59), resting HR (-3.6 [10.6] vs -2.9 [12.4] beats per minute, P = .63), and moderate to vigorous PA levels (37.3 [93.4] vs 14.4 [125.7] min/wk; P = .35) between HIIT and CR were detected. Participants attended a mean (SD) of 18.3 (6.1) (75.1%) HIIT sessions and 20.0 (4.5) (83.4%) CR sessions (P = .36). CONCLUSIONS AND RELEVANCE In this randomized clinical trial, twice-weekly 23-minute HIIT was as efficacious as twice-weekly 60-minute CR in improving functional capacity, general and disease-specific QOL, resting HR, and PA levels in patients with persistent and permanent AF. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02602457.
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Affiliation(s)
- Jennifer L. Reed
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- University of Ottawa, Faculty of Health Sciences, School of Human Kinetics, Ottawa, Ontario, Canada
- Deprtment of Medicine, University of Ottawa, Faculty of Medicine, Ottawa, Ontario, Canada
| | - Tasuku Terada
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Sol Vidal-Almela
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- University of Ottawa, Faculty of Health Sciences, School of Human Kinetics, Ottawa, Ontario, Canada
- Research Unit on Nutrition and Metabolism, Institut de recherche de l’Hôpital Montfort, Ottawa, Ontario, Canada
| | - Heather E. Tulloch
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Deprtment of Medicine, University of Ottawa, Faculty of Medicine, Ottawa, Ontario, Canada
| | - Matheus Mistura
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - David H. Birnie
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Deprtment of Medicine, University of Ottawa, Faculty of Medicine, Ottawa, Ontario, Canada
| | - George A. Wells
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Deprtment of Medicine, University of Ottawa, Faculty of Medicine, Ottawa, Ontario, Canada
| | - Girish M. Nair
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Deprtment of Medicine, University of Ottawa, Faculty of Medicine, Ottawa, Ontario, Canada
| | - Harleen Hans
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Kimberley L. Way
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Deakin University, School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Geelong, Victoria, Australia
| | - Daniele Chirico
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | | | - Andrew L. Pipe
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Deprtment of Medicine, University of Ottawa, Faculty of Medicine, Ottawa, Ontario, Canada
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Ahmed AI, Saad JM, Han Y, Alfawara MS, Soliman A, Nabi F, Zoghbi WA, Al-Mallah MH. Prognostic Interplay Between Coronary Artery Calcium Scoring and Cardiorespiratory FItness: The CAC-FIT Study. Mayo Clin Proc 2022; 97:1269-1281. [PMID: 35787855 DOI: 10.1016/j.mayocp.2022.03.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/04/2022] [Accepted: 03/31/2022] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To assess the incremental prognostic role of coronary artery calcium score (CACS) and exercise capacity (EC), two independent prognostic tests in the assessment of patients with coronary artery disease. METHODS The cohort consisted of patients who had clinically indicated exercise stress testing and CACS assessment from January 1, 2015, to September 30, 2021, with a median of 27 days between each other. Exercise capacity was defined by peak metabolic equivalents of task (METs) achieved during exercise stress test. The CACS was determined by the Agatston method. Patients were observed from the latest test date to incident major adverse cardiac events (inclusive of all-cause death, nonfatal myocardial infarction, late revascularization, and admission for heart failure). RESULTS There were a` total of 1932 patients in the study population (mean age, 56±12 years; 42% female, 48% hypertension, 21% diabetes, 48% dyslipidemia). Peak METs below 6 was achieved in 8% of patients, and the median (interquartile range) CACS was 9 (0-203). In multivariable Cox regression models, both CACS (1 unit increase in log CACS: hazard ratio, 1.19; 95% CI, 1.06 to 1.34; P=.003;) and EC (1 unit increase in peak METs: hazard ratio, 0.89; 95% CI, 0.81 to 0.97; P=.01) were independently associated with outcomes. Using CACS+EC added incremental prognostic value over clinical and fitness models (C index increase from 0.68 to 0.75; P=.015). Incident event rates increased across categories of CACS and EC. CONCLUSION Our analysis found that CACS and EC have complementary risk-stratifying roles in coronary artery disease.
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Affiliation(s)
| | | | - Yushui Han
- Houston Methodist DeBakey Heart & Vascular Center
| | | | | | - Faisal Nabi
- Houston Methodist DeBakey Heart & Vascular Center
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Drugescu A, Roca M, Zota IM, Costache AD, Gavril OI, Gavril RS, Vasilcu TF, Mitu O, Esanu IM, Roca IC, Ghiciuc CM, Mitu F. Value of the Neutrophil to Lymphocyte Ratio and Platelet to Lymphocyte Ratio in Predicting CPET Performance in Patients with Stable CAD and Recent Elective PCI. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58060814. [PMID: 35744077 PMCID: PMC9229341 DOI: 10.3390/medicina58060814] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 02/07/2023]
Abstract
Background and Objectives: Functional capacity (FC) assessed via cardiopulmonary exercise testing (CPET) is a novel, independent prognostic marker for patients with coronary artery disease (CAD). Neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) are two readily available predictors of systemic inflammation and cardiovascular event risk, which could be used as cost-effective predictors of poor FC. The purpose of this study was to evaluate the utility of NLR and PLR in predicting poor FC in patients with CAD and recent elective percutaneous coronary intervention (PCI). Materials and Methods: Our cross-sectional retrospective analysis included 80 patients with stable CAD and recent elective PCI (mean age 55.51 ± 11.83 years, 71.3% male) who were referred to a cardiovascular rehabilitation center from January 2020 to June 2021. All patients underwent clinical examination, cardiopulmonary exercise testing on a cycle ergometer, transthoracic echocardiography and standard blood analysis. Results: Patients were classified according to percent predicted oxygen uptake (% VO2 max) in two groups—poor FC (≤70%, n = 35) and preserved FC (>70%, n = 45). There was no significant difference between groups regarding age, gender ratio, presence of associated comorbidities, left ventricular ejection fraction and NLR. PLR was higher in patients with poor FC (169.8 ± 59.3 vs. 137.4 ± 35.9, p = 0.003). A PLR cut-off point of 139 had 74% sensitivity and 60% specificity in predicting poor FC. After multivariate analysis, PLR remained a significant predictor of poor functional status. Conclusions: Although CPET is the gold standard test for assessing FC prior to cardiovascular rehabilitation, its availability remains limited. PLR, a cheap and simple test, could predict poor FC in patients with stable CAD and recent elective PCI and help prioritize referral for cardiovascular rehabilitation in high-risk patients.
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Affiliation(s)
- Andrei Drugescu
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
| | - Mihai Roca
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
- Correspondence: (M.R.); (I.M.Z.)
| | - Ioana Mădălina Zota
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
- Correspondence: (M.R.); (I.M.Z.)
| | - Alexandru-Dan Costache
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
| | - Oana Irina Gavril
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
| | - Radu Sebastian Gavril
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
| | - Teodor Flaviu Vasilcu
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
| | - Ovidiu Mitu
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
| | - Irina Mihaela Esanu
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
| | - Iulia-Cristina Roca
- Surgery II Department, Faculty of Medicine, ”Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Cristina Mihaela Ghiciuc
- Morpho-Functional Sciences II Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Florin Mitu
- Medical I Department, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (A.D.); (A.-D.C.); (O.I.G.); (R.S.G.); (T.F.V.); (O.M.); (I.M.E.); (F.M.)
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9
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Batalik L, Filakova K, Radkovcova I, Dosbaba F, Winnige P, Vlazna D, Batalikova K, Felsoci M, Stefanakis M, Liska D, Papathanasiou J, Pokorna A, Janikova A, Rutkowski S, Pepera G. Cardio-Oncology Rehabilitation and Telehealth: Rationale for Future Integration in Supportive Care of Cancer Survivors. Front Cardiovasc Med 2022; 9:858334. [PMID: 35497988 PMCID: PMC9051023 DOI: 10.3389/fcvm.2022.858334] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/16/2022] [Indexed: 02/05/2023] Open
Abstract
The direct toxicity of cancer treatment threatens patients and survivors with an increased risk of cardiovascular disease or adverse functional changes with subsequent progression of cardiovascular complications. An accumulation of cardiovascular risk factors combined with an unhealthy lifestyle has recently become more common in cancer patients and survivors. It has been recommended to integrate a comprehensive cardiac rehabilitation model called cardio-oncology rehabilitation to mitigate cardiovascular risk. Nevertheless, cardiac rehabilitation interventions limit barriers in low utilization, further exacerbated by the restrictions associated with the COVID-19 pandemic. Therefore, it is essential to integrate alternative interventions such as telehealth, which can overcome several barriers. This literature review was designed as a framework for developing and evaluating telehealth interventions and mobile applications for comprehensive cardio-oncology rehabilitation. We identify knowledge gaps and propose strategies to facilitate the development and integration of cardio-oncology rehabilitation telehealth as an alternative approach to the standard of care for cancer patients and survivors. Despite the limited evidence, the pilot results from included studies support the feasibility and acceptability of telehealth and mobile technologies in cardio-oncology rehabilitation. This new area suggests that telehealth interventions are feasible and induce physiological and psychological benefits for cancer patients and survivors. There is an assumption that telehealth interventions and exercise may be an effective future alternative approach in supportive cancer care.
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Affiliation(s)
- Ladislav Batalik
- Department of Rehabilitation, University Hospital Brno, Brno, Czechia
- Department of Public Health, Faculty of Medicine, Masaryk University, Brno, Czechia
- *Correspondence: Ladislav Batalik,
| | - Katerina Filakova
- Department of Rehabilitation, University Hospital Brno, Brno, Czechia
| | - Ivana Radkovcova
- Department of Rehabilitation, University Hospital Brno, Brno, Czechia
| | - Filip Dosbaba
- Department of Rehabilitation, University Hospital Brno, Brno, Czechia
| | - Petr Winnige
- Department of Rehabilitation, University Hospital Brno, Brno, Czechia
- Department of Public Health, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Daniela Vlazna
- Department of Rehabilitation, University Hospital Brno, Brno, Czechia
- Department of Neurology, University Hospital Brno, Brno, Czechia
- Faculty of Medicine, Masaryk University, Brno, Czechia
| | | | - Marian Felsoci
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Internal Medicine and Cardiology, University Hospital Brno, Brno, Czechia
| | | | - David Liska
- Faculty of Arts, Department of Physical Education and Sports, Matej Bel University, Banská Bystrica, Slovakia
| | - Jannis Papathanasiou
- Department of Medical Imaging, Allergology & Physiotherapy, Faculty of Dental Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
- Department of Kinesitherapy, Faculty of Public Health “Prof. Dr. Tzecomir Vodenicharov, Ph.D”, Medical University of Sofia, Sofia, Bulgaria
| | - Andrea Pokorna
- Department of Health Sciences, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Andrea Janikova
- Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Internal Medicine–Hematology and Oncology, University Hospital Brno, Brno, Czechia
| | - Sebastian Rutkowski
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland
| | - Garyfallia Pepera
- Clinical Exercise Physiology and Rehabilitation Research Laboratory, Physiotherapy Department, School of Health Sciences, University of Thessaly, Lamia, Greece
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10
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Chu DJ, Ahmed AM, Qureshi WT, Brawner CA, Keteyian SJ, Nasir K, Blumenthal RS, Blaha MJ, Ehrman JK, Cainzos-Achirica M, Patel KV, Al Rifai M, Al-Mallah MH. Prognostic Value of Cardiorespiratory Fitness in Patients with Chronic Kidney Disease: The FIT (Henry Ford Exercise Testing) Project. Am J Med 2022; 135:67-75.e1. [PMID: 34509447 DOI: 10.1016/j.amjmed.2021.07.042] [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: 04/01/2021] [Revised: 06/01/2021] [Accepted: 07/31/2021] [Indexed: 11/01/2022]
Abstract
PURPOSE We conducted this study to investigate the association of cardiorespiratory fitness and all-cause mortality among patients with chronic kidney disease. METHODS We studied a retrospective cohort of patients from the Henry Ford Health System who underwent clinically indicated exercise stress testing with baseline cardiorespiratory fitness and estimated glomerular filtration rate measurement. Cardiorespiratory fitness was expressed as metabolic equivalents of task, and kidney function was categorized into stages according to estimated glomerular filtration rate. Multivariable-adjusted Cox proportional hazard models were used to examine the association between metabolic equivalents of task and all-cause mortality among patients with chronic kidney disease stages 3-5. Discrimination of mortality was assessed using receiver operating characteristic curves, while reclassification was evaluated using net reclassification index (NRI). RESULTS Among 50,121 participants, the mean age was 55 ± 12.6 years; 47.5% were women, 64.5% were white, and 6877 (13.7%) participants had chronic kidney disease stage 3-5. Over a median follow-up of 6.7 years, 6308 participants died (12.6%). Each 1-unit higher metabolic equivalents of task was associated with a significant 15% reduction in all-cause mortality (hazard ratio 0.85; 95% confidence interval [CI], 0.84-0.87). Metabolic equivalents of task improved discriminatory ability of mortality prediction when added to traditional risk factors and estimated glomerular filtration rate (area under the curve 0.7996; 95% CI, 0.789-0.810 vs 0.759; 95% CI, 0.748-0.770, respectively; P < .001). The addition of metabolic equivalents of task to traditional risk factors resulted in significant reclassification (6% for events, 5% for non-events: NRI = 0.13, P < .001). CONCLUSIONS Cardiorespiratory fitness improves mortality risk prediction among patients with chronic kidney disease. Cardiorespiratory fitness provides incremental prognostic information when added to traditional risk factors and may help guide treatment options among patients with renal dysfunction.
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Affiliation(s)
- Daniel J Chu
- Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Amjad M Ahmed
- King Abdulaziz Cardiac Center, National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Waqas T Qureshi
- Department of Cardiology, University of Massachusetts, Worcester
| | | | | | - Khurram Nasir
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md; Department of Cardiology, Houston Methodist Hospital, Houston, Texas
| | | | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md
| | | | | | - Kershaw V Patel
- Department of Cardiology, Houston Methodist Hospital, Houston, Texas
| | - Mahmoud Al Rifai
- Section of Cardiology, Baylor College of Medicine, Houston, Texas
| | - Mouaz H Al-Mallah
- Department of Cardiology, Houston Methodist Hospital, Houston, Texas.
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11
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Ezzatvar Y, Izquierdo M, Núñez J, Calatayud J, Ramírez-Vélez R, García-Hermoso A. Cardiorespiratory fitness measured with cardiopulmonary exercise testing and mortality in patients with cardiovascular disease: A systematic review and meta-analysis. JOURNAL OF SPORT AND HEALTH SCIENCE 2021; 10:609-619. [PMID: 34198003 PMCID: PMC8724619 DOI: 10.1016/j.jshs.2021.06.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/13/2021] [Accepted: 05/24/2021] [Indexed: 05/09/2023]
Abstract
BACKGROUND Cardiorespiratory fitness (CRF) is inversely associated with mortality in apparently healthy subjects and in some clinical populations, but evidence for the association between CRF and all-cause and/or cardiovascular disease (CVD) mortality in patients with established CVD is lacking. This study aimed to quantify this association. METHODS We searched for prospective cohort studies that measured CRF with cardiopulmonary exercise testing in patients with CVD and that examined all-cause and CVD mortality with at least 6 months of follow-up. Pooled hazard ratios (HRs) were calculated using random-effect inverse-variance analyses. RESULTS Data were obtained from 21 studies and included 159,352 patients diagnosed with CVD (38.1% female). Pooled HRs for all-cause and CVD mortality comparing the highest vs. lowest category of CRF were 0.42 (95% confidence interval (95%CI): 0.28-0.61) and 0.27 (95%CI: 0.16-0.48), respectively. Pooled HRs per 1 metabolic equivalent (1-MET) increment were significant for all-cause mortality (HR = 0.81; 95%CI: 0.74-0.88) but not for CVD mortality (HR = 0.75; 95%CI: 0.48-1.18). Coronary artery disease patients with high CRF had a lower risk of all-cause mortality (HR = 0.32; 95%CI: 0.26-0.41) than did their unfit counterparts. Each 1-MET increase was associated with lower all-cause mortality risk among coronary artery disease patients (HR = 0.83; 95%CI: 0.76-0.91) but not lower among those with heart failure (HR = 0.69; 95%CI: 0.36-1.32). CONCLUSION A better CRF was associated with lower risk of all-cause mortality and CVD. This study supports the use of CRF as a powerful predictor of mortality in this population.
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Affiliation(s)
- Yasmin Ezzatvar
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, Universitat de València, Valencia 46010, Spain
| | - Mikel Izquierdo
- Navarrabiomed, Navarra Hospital Complex (CHN), Public University of Navarra (UPNA), Navarra Medical Research Institute (IdiSNA), Pamplona 31008, Spain; CIBER of Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Julio Núñez
- Department of Cardiology, Valencia University Hospital, Biomedical Research Institute (INCLIVA), Valencia 46010, Spain; CIBER in Cardiovascular Diseases (CIBERCV), Madrid 28029, Spain
| | - Joaquín Calatayud
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, Universitat de València, Valencia 46010, Spain
| | - Robinson Ramírez-Vélez
- Navarrabiomed, Navarra Hospital Complex (CHN), Public University of Navarra (UPNA), Navarra Medical Research Institute (IdiSNA), Pamplona 31008, Spain; CIBER of Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Antonio García-Hermoso
- Navarrabiomed, Navarra Hospital Complex (CHN), Public University of Navarra (UPNA), Navarra Medical Research Institute (IdiSNA), Pamplona 31008, Spain; CIBER of Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid 28029, Spain; Sciences of Physical Activity, Sports and Health School, University of Santiago of Chile (USACH), Santiago 71783-5, Chile.
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12
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Peclat TR, de Souza ACDAH, Souza VF, Nakamoto AMK, Neves FM, Silva ICR, Lima RSL. The additional prognostic value of myocardial perfusion SPECT in patients with known coronary artery disease with high exercise capacity. J Nucl Cardiol 2021; 28:2056-2066. [PMID: 31792916 DOI: 10.1007/s12350-019-01960-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 02/03/2023]
Abstract
BACKGROUND The prognostic value of myocardial perfusion imaging (MPI) in patients with known coronary artery disease (CAD) and high exercise capacity is still unknown. We sought to determine the MPI additional prognostic value over electrocardiography (ECG) stress testing alone in patients with known CAD who achieved ≥ 10 metabolic equivalents (METs). METHODS AND RESULTS We evaluated 926 patients with known CAD referred for MPI with exercise stress. Patients were followed for a mean of 32.4 ± 9.7 months for the occurrence of all-cause death or nonfatal myocardial infarction (MI). Those achieving ≥ 10 METs were younger, predominantly male, and had lower prevalence of cardiovascular risk factors. Patients reaching ≥ 10 METs had a lower annualized rate of hard events compared to their counterparts achieving < 10 METs (1.13%/year vs 3.95%/year, P < .001). Patients who achieved ≥ 10 METs with abnormal scans had a higher rate of hard events compared to those with normal scans (3.37%/year vs 0.57%/year, P = .023). Cardiac workload < 10 METs and an abnormal MPI scan were independent predictors of hard events. CONCLUSIONS MPI is able to stratify patients with known CAD achieving ≥ 10 METs for the occurrence of all-cause death and nonfatal MI, with incremental prognostic value over ECG stress test alone.
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Affiliation(s)
- Thais R Peclat
- Cardiology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Ana Carolina do A H de Souza
- Cardiology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Victor F Souza
- Cardiology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline M K Nakamoto
- Cardiology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Felipe M Neves
- Cardiology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Izabella C R Silva
- Cardiology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ronaldo S L Lima
- Cardiology, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Fonte Imagem, Rio de Janeiro, Brazil
- Clínica de Diagnóstico por Imagem, Rio de Janeiro, Brazil
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13
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Mechanisms of Exercise Capacity Improvement after Cardiac Rehabilitation Following Myocardial Infarction Assessed with Combined Stress Echocardiography and Cardiopulmonary Exercise Testing. J Clin Med 2021; 10:jcm10184083. [PMID: 34575194 PMCID: PMC8471103 DOI: 10.3390/jcm10184083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/26/2021] [Accepted: 09/06/2021] [Indexed: 12/16/2022] Open
Abstract
Cardiac rehabilitation (CR) is indicated in all patients after acute myocardial infarction (AMI) to improve prognosis and exercise capacity (EC). Previous studies reported that up to a third of patients did not improve their EC after CR (non-responders). Our aim was to assess the cardiac and peripheral mechanisms of EC improvement after CR using combined exercise echocardiography and cardiopulmonary exercise testing (CPET-SE). The responders included patients with an improved EC assessed as a rise in peak oxygen uptake (VO2) ≥ 1 mL/kg/min. Peripheral oxygen extraction was calculated as arteriovenous oxygen difference (A-VO2Diff). Out of 41 patients (67% male, mean age 57.5 ± 10 years) after AMI with left ventricular ejection fraction (LVEF) ≥ 40%, 73% improved their EC. In responders, peak VO2 improved by 27% from 17.9 ± 5.2 mL/kg/min to 22.7 ± 5.1 mL/kg/min, p < 0.001, while non-responders had a non-significant 5% decrease in peak VO2. In the responder group, the peak exercise heart rate, early diastolic myocardial velocity at peak exercise, LVEF at rest and at peak exercise, and A-VO2Diff at peak exercise increased, the minute ventilation to carbon dioxide production slope decreased, but the stroke volume and cardiac index were unchanged after CR. Non-responders had no changes in assessed parameters. EC improvement after CR of patients with preserved LVEF after AMI is associated with an increased heart rate response and better peripheral oxygen extraction during exercise.
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14
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Whelton SP, McAuley PA, Dardari Z, Orimoloye OA, Michos ED, Brawner CA, Ehrman JK, Keteyian SJ, Blaha MJ, Al-Mallah MH. Fitness and Mortality Among Persons 70 Years and Older Across the Spectrum of Cardiovascular Disease Risk Factor Burden: The FIT Project. Mayo Clin Proc 2021; 96:2376-2385. [PMID: 34366139 DOI: 10.1016/j.mayocp.2020.12.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To determine whether fitness could improve mortality risk stratification among older adults compared with cardiovascular disease (CVD) risk factors. METHODS We examined 6509 patients 70 years of age and older without CVD from the Henry Ford ExercIse Testing Project (FIT Project) cohort. Patients performed a physician-referred treadmill stress test between 1991 and 2009. Traditional categorical CVD risk factors (hypertension, hyperlipidemia, diabetes, and smoking) were summed from 0 to 3 or more. Fitness was grouped as low, moderate, and high (<6, 6 to 9.9, and ≥10 metabolic equivalents of task). All-cause mortality was ascertained through US Social Security Death Master files. We calculated age-adjusted mortality rates, multivariable adjusted Cox proportional hazards, and Kaplan-Meier survival models. RESULTS Patients had a mean age of 75±4 years, and 3385 (52%) were women; during a mean follow-up of 9.4 years, there were 2526 deaths. A higher fitness level (P<.001), not lower CVD risk factor burden (P=.31), was associated with longer survival. The age-adjusted mortality rate per 1000 person-years was 56.7 for patients with low fitness and 0 risk factors compared with 24.9 for high fitness and 3 or more risk factors. Among patients with 3 or more risk factors, the adjusted mortality hazard was 0.68 (95% CI, 0.61 to 0.76) for moderate and 0.51 (95% CI, 0.44 to 0.60) for high fitness compared with the least fit. CONCLUSION Among persons aged 70 years and older, there was no significant difference in survival of patients with 0 vs 3 or more risk factors, but a higher fitness level identified older persons with good long-term survival regardless of CVD risk factor burden.
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Affiliation(s)
- Seamus P Whelton
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, MD.
| | - Paul A McAuley
- Department of Health, Physical Education, and Sport Studies, Winston-Salem State University, Winston-Salem, NC
| | - Zeina Dardari
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, MD
| | - Olusola A Orimoloye
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, MD; Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Erin D Michos
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, MD
| | - Clinton A Brawner
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
| | - Jonathan K Ehrman
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
| | - Steven J Keteyian
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, MD
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15
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Li Y, Feng X, Chen B, Liu H. Retrospective analysis of exercise capacity in patients with coronary artery disease after percutaneous coronary intervention or coronary artery bypass graft. Int J Nurs Sci 2021; 8:257-263. [PMID: 34307773 PMCID: PMC8283701 DOI: 10.1016/j.ijnss.2021.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 05/01/2021] [Accepted: 05/25/2021] [Indexed: 11/15/2022] Open
Abstract
Objectives To describe the current state of exercise capacity as well as to identify its predictors in patients with coronary artery disease (CAD) following percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG) in the mainland of China. Methods A retrospective study design was employed. We evaluated 230 CAD patients following PCI or CABG in a cardiac rehabilitation center from January 2019 to October 2019. The patients were referred to undergo incremental cardiopulmonary exercise testing with a cycle ergometer. The Zung Self-Rating Anxiety Scale and the Zung Self-Rating Depression Scale were used to evaluate patients’ mental health. Statistical analysis was performed using the chi-square test, Fisher’s exact test, t-test, Mann-Whitney U test, and binary logistic regression. Results Among the 230 patients, 223 patients demonstrated reduced exercise capacity. Resutlts of the logistic regression analysis showed that anxiety (OR = 1.13, 95% CI 1.01–1.32, P = 0.029) was an independent risk factor for reduced exercise capacity in patients following the PCI or CABG. Conclusions Exercise capacity of Chinese CAD patients after PCI or CABG was relatively poor. Alleviating symptoms of anxiety and making exercise prescriptions according to the results of the cardiopulmonary exercise test should be considered during the intervention to improve CAD patients’ exercise capacity.
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Affiliation(s)
- Ying Li
- School of Nursing, Peking Union Medical College, Beijing, China
| | - Xue Feng
- Chinese Academy of Medical Sciences & Peking Union Medical College Fuwai Hospital, Beijing, China
| | - Biyun Chen
- Chinese Academy of Medical Sciences & Peking Union Medical College Fuwai Hospital, Beijing, China
| | - Huaping Liu
- School of Nursing, Peking Union Medical College, Beijing, China
- Corresponding author.
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16
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Le TT, Ang BWY, Bryant JA, Chin CY, Yeo KK, Wong PEH, Ho KW, Tan JWC, Lee PT, Chin CWL, Cook SA. Multiparametric exercise stress cardiovascular magnetic resonance in the diagnosis of coronary artery disease: the EMPIRE trial. J Cardiovasc Magn Reson 2021; 23:17. [PMID: 33658056 PMCID: PMC7931509 DOI: 10.1186/s12968-021-00705-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 01/06/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Stress cardiovascular magnetic resonance (CMR) offers assessment of ventricular function, myocardial perfusion and viability in a single examination to detect coronary artery disease (CAD). We developed an in-scanner exercise stress CMR (ExCMR) protocol using supine cycle ergometer and aimed to examine the diagnostic value of a multiparametric approach in patients with suspected CAD, compared with invasive fractional flow reserve (FFR) as the reference gold standard. METHODS In this single-centre prospective study, patients who had symptoms of angina and at least one cardiovascular disease risk factor underwent both ExCMR and invasive angiography with FFR. Rest-based left ventricular function (ejection fraction, regional wall motion abnormalities), tissue characteristics and exercise stress-derived (perfusion defects, inducible regional wall motion abnormalities and peak exercise cardiac index percentile-rank) CMR parameters were evaluated in the study. RESULTS In the 60 recruited patients with intermediate CAD risk, 50% had haemodynamically significant CAD based on FFR. Of all the CMR parameters assessed, the late gadolinium enhancement, stress-inducible regional wall motion abnormalities, perfusion defects and peak exercise cardiac index percentile-rank were independently associated with FFR-positive CAD. Indeed, this multiparametric approach offered the highest incremental diagnostic value compared to a clinical risk model (χ2 for the diagnosis of FFR-positive increased from 7.6 to 55.9; P < 0.001) and excellent performance [c-statistic area under the curve 0.97 (95% CI: 0.94-1.00)] in discriminating between FFR-normal and FFR-positive patients. CONCLUSION The study demonstrates the clinical potential of using in-scanner multiparametric ExCMR to accurately diagnose CAD. TRIAL REGISTRATION ClinicalTrials.gov, NCT03217227, Registered 11 July 2017-Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT03217227?id=NCT03217227&draw=2&rank=1&load=cart.
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Affiliation(s)
- Thu-Thao Le
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore.
| | - Briana W Y Ang
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
| | - Jennifer A Bryant
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Chee Yang Chin
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Khung Keong Yeo
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Philip E H Wong
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Kay Woon Ho
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Jack W C Tan
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Phong Teck Lee
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Calvin W L Chin
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Stuart A Cook
- National Heart Research Institute Singapore, National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
- National Heart and Lung Institute, Imperial College, London, UK
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17
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Relationship of Stress Test Findings to Anatomic or Functional Extent of Coronary Artery Disease Assessed by Coronary Computed Tomography Angiography-Derived Fractional Flow Reserve. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6674144. [PMID: 33681370 PMCID: PMC7929671 DOI: 10.1155/2021/6674144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/08/2021] [Accepted: 02/04/2021] [Indexed: 11/18/2022]
Abstract
Background In the United States, functional stress testing is the primary imaging modality for patients with stable symptoms suspected to represent coronary artery disease (CAD). Coronary computed tomography angiography (CTA) is excellent at identifying anatomic coronary artery disease (CAD). The application of computational fluid dynamics to coronary CTA allows fractional flow reserve (FFR) to be calculated noninvasively (FFRCT). The relationship of noninvasive stress testing to coronary CTA and FFRCT in real-world clinical practice has not been studied. Methods We evaluated 206 consecutive patients at Loyola University Chicago with suspected CAD who underwent noninvasive stress testing followed by coronary CTA and FFRCT when indicated. Patients were categorized by stress test results (positive, negative, indeterminate, and equivocal). Duke treadmill score (DTS), METS, exercise duration, and chest pain with exercise were analyzed. Lesions ≥ 50%stenosis were considered positive by coronary CTA. FFRCT < 0.80 was considered diagnostic of ischemia. Results Two hundred and six patients had paired noninvasive stress test and coronary CTA/FFRCT results. The median time from stress test to coronary CTA was 49 days. Average patient age was 60.3 years, and 42% were male. Of the 206 stress tests, 75% were exercise (70% echocardiographic, 26% nuclear, and 4% EKG). There were no associations of stress test results with CAD > 50% or FFRCT < 0.80 (p = 0.927 and p = 0.910, respectively). Of those with a positive stress test, only 30% (3/10) had CAD > 50% and only 50% (5/10) had FFRCT < 0.80. Chest pain with exercise did not correlate with CAD > 50% or FFRCT < 0.80 (p = 0.66 and p = 0.12, respectively). There were no significant correlations between METS, DTS, or exercise duration and FFRCT (r = 0.093, p = 0.274; r = 0.012, p = 0.883; and r = 0.034, p = 0.680; respectively). Conclusion Noninvasive stress testing, functional capacity, chest pain with exercise, and DTS are not associated with anatomic or functional CAD using a diagnostic strategy of coronary CTA and FFRCT.
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Training intensity and improvements in exercise capacity in elderly patients undergoing European cardiac rehabilitation - the EU-CaRE multicenter cohort study. PLoS One 2020; 15:e0242503. [PMID: 33186408 PMCID: PMC7665625 DOI: 10.1371/journal.pone.0242503] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/04/2020] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVES Guidelines for exercise intensity prescription in Cardiac Rehabilitation (CR) are inconsistent and have recently been discussed controversially. We aimed (1) to compare training intensities between European CR centres and (2) to assess associations between training intensity and improvement in peak oxygen consumption ([Formula: see text]O2) in elderly CR patients. METHODS Peak [Formula: see text]O2, heart rate and work rate (WR) at the first and second ventilatory thresholds were measured at start of CR. Training heart rate was measured during three sessions spread over the CR. Multivariate models were used to compare training characteristics between centres and to assess the effect of training intensity on change in peak [Formula: see text]O2. RESULTS Training intensity was measured in 1011 out of 1633 EU-CaRE patients in 7 of 8 centers and the first and secondary ventilatory threshold were identified in 1166 and 817 patients, respectively. The first and second ventilatory threshold were found at 44% (SD 16%) and 78% (SD 9%) of peak WR and 78% (SD 9%) and 89% (SD 5%) of peak heart rate, respectively. Training intensity and session duration varied significantly between centres but change in peak [Formula: see text]O2 over CR did not. Training above the first individual threshold (β 0.62, 95% confidence interval [0.25-1.02]) and increase in training volume per hour (β 0.06, 95%CI [0.01-0.12]) were associated with a higher change in peak [Formula: see text]O2. CONCLUSION While training intensity and volume varied greatly amongst current European CR programs, changes in peak [Formula: see text]O2 were similar and the effect of training characteristics on these changes were small.
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Xue L, Guo D, Wang L, Cao C, Li Q, Zou S. Objectifying the level of incomplete revascularization by residual SYNTAX score and evaluating the impact of incomplete revascularization on exercise tolerance in patients with coronary atherosclerotic heart disease treated by percutaneous coronary intervention. Medicine (Baltimore) 2020; 99:e22221. [PMID: 32957360 PMCID: PMC7505407 DOI: 10.1097/md.0000000000022221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The prognostic impact of incomplete revascularization (ICR) on patients underwent percutaneous coronary intervention (PCI) was vague. Our research aimed to objectify the level of ICR by residual SYNTAX score (rSS) and evaluate the impact of ICR on exercise tolerance.We enrolled 87 patients who completed cardiopulmonary exercise testing (CPET) within 12 months after PCI, retrospectively. According to rSS, patients were divided into rSS = 0 group, 0 < rSS ≤ 8 group, and rSS > 8 group. The CPET variables--including peak metabolic equivalent (METpeak), percentages of predicting value of METpeak (METpeak%pred), MET at anaerobic threshold (AT), peak oxygen uptake (VO2peak), percentages of predicting value of VO2peak (VO2peak%pred), VO2 at AT--were collected and compared.Among rSS = 0, 0 < rSS ≤ 8 and rSS > 8 groups, patients with higher rSS had progressively lower METpeak, METpeak%pred, VO2peak%pred, VO2 at AT, and MET at AT, which indicate reduced exercise tolerance. And further multiple comparisons showed that there were no statistically significant differences between rSS = 0 and 0 < rSS ≤ 8 groups, while the aforementioned CPET variables were significantly lower in rSS > 8 group compared with rSS = 0 group. Logistic regression analysis showed that rSS was an independent risk factor for reduced exercise tolerance.
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Affiliation(s)
- Lin Xue
- Department of Cardiology, Peking University People's Hospital
- Department of Pulmonary Vascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Danjie Guo
- Department of Cardiology, Peking University People's Hospital
| | - Lan Wang
- Department of Cardiology, Peking University People's Hospital
| | - Chengfu Cao
- Department of Cardiology, Peking University People's Hospital
| | - Qi Li
- Department of Cardiology, Peking University People's Hospital
| | - Shangzhi Zou
- Department of Cardiology, Peking University People's Hospital
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Al Rifai M, Blaha MJ, Ahmed A, Almasoudi F, Johansen MC, Qureshi W, Sakr S, Virani SS, Brawner CA, Ehrman JK, Keteyian SJ, Al-Mallah MH. Cardiorespiratory Fitness and Incident Stroke Types: The FIT (Henry Ford ExercIse Testing) Project. Mayo Clin Proc 2020; 95:1379-1389. [PMID: 32622446 DOI: 10.1016/j.mayocp.2019.11.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/13/2019] [Accepted: 11/22/2019] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To study the association between cardiorespiratory fitness (CRF) and incident stroke types. PATIENTS AND METHODS We studied a retrospective cohort of patients referred for treadmill stress testing in the Henry Ford Health System (Henry Ford ExercIse Testing Project) without history of stroke. CRF was expressed by metabolic equivalents of task (METs). Using appropriate International Classification of Diseases, Ninth Revision codes, incident stroke was ascertained through linkage with administrative claims files and classified as ischemic, hemorrhagic, and subarachnoid hemorrhage (SAH). Multivariable-adjusted Cox proportional hazards models examined the association between CRF and incident stroke. RESULTS Among 67,550 patients, mean ± SD age was 54±13 years, 46% (n=31,089) were women, and 64% (n=43,274) were white. After a median follow-up of 5.4 (interquartile range 2.7-8.5) years, a total of 7512 incident strokes occurred (6320 ischemic, 2481 hemorrhagic, and 275 SAH). Overall, there was a graded lower incidence of stroke with higher MET categories. Patients with METs of 12 or more had lower risk of overall stroke [0.42 (95% CI, 0.36-0.49)], ischemic stroke [0.69 (95% CI, 0.58-0.82)], and hemorrhagic stroke [0.71 (95% CI, 0.52-0.95)]. CONCLUSION In a large ethnically diverse cohort of patients referred for treadmill stress testing, CRF is inversely associated with risk for ischemic and hemorrhagic stroke.
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Affiliation(s)
- Mahmoud Al Rifai
- Section of Cardiology, Baylor College of Medicine, Houston, TX; The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD
| | - Michael J Blaha
- The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD
| | - Amjad Ahmed
- King Abdul Aziz Cardiac Center, Riyadh, Saudi Arabia
| | | | | | - Waqas Qureshi
- Division of Cardiology, University of Massachusetts Medical School, Worcester, MA
| | - Sherif Sakr
- King Abdul Aziz Cardiac Center, Riyadh, Saudi Arabia
| | - Salim S Virani
- Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX; Health Policy, Quality & Informatics Program, Michael E. DeBakey Veterans Affairs Medical Center Health Services Research and Development Center for Innovations, Houston, TX; Section of Cardiology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX
| | - Clinton A Brawner
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
| | - Jonathan K Ehrman
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
| | - Steven J Keteyian
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
| | - Mouaz H Al-Mallah
- Department of Cardiac Imaging, Houston Methodist DeBakey Heart & Vascular Center, TX.
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Chu DJ, Al Rifai M, Virani SS, Brawner CA, Nasir K, Al-Mallah MH. The relationship between cardiorespiratory fitness, cardiovascular risk factors and atherosclerosis. Atherosclerosis 2020; 304:44-52. [DOI: 10.1016/j.atherosclerosis.2020.04.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/23/2020] [Accepted: 04/29/2020] [Indexed: 02/06/2023]
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Origuchi H, Itoh H, Momomura SI, Nohara R, Daida H, Masuda T, Kohzuki M, Makita S, Ueshima K, Nagayama M, Omiya K, Adachi H, Goto Y. Active Participation in Outpatient Cardiac Rehabilitation Is Associated With Better Prognosis After Coronary Artery Bypass Graft Surgery - J-REHAB CABG Study. Circ J 2020; 84:427-435. [PMID: 32037378 DOI: 10.1253/circj.cj-19-0650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND There is little evidence regarding the effect of outpatient cardiac rehabilitation (CR) on exercise capacity or the long-term prognosis in patients after coronary artery bypass graft surgery (CABG). This study aimed to determine whether participation in outpatient CR improves exercise capacity and long-term prognosis in post-CABG Japanese patients in a multicenter cohort.Methods and Results:We enrolled 346 post-CABG patients who underwent cardiopulmonary exercise testing during early (2-3 weeks) and late (3-6 months) time points after surgery. They formed the Active (n=240) and Non-Active (n=106) CR participation groups and were followed for 3.5 years. Primary endpoint was a major adverse cardiac event (MACE): all-cause death or rehospitalization for acute myocardial infarction/unstable angina/worsening heart failure. Peak oxygen uptake at 3-5 months from baseline was significantly more increased in Active than in Non-Active patients (+26±24% vs. +19±20%, respectively; P<0.05), and the MACE rate was significantly lower in Active than Non-Active patients (3.4% vs. 10.5%, respectively; P=0.02). Multivariate Cox proportional hazard analysis showed that participation in outpatient CR was a significant prognostic determinant of MACE (P=0.03). CONCLUSIONS This unique study showed that a multicenter cohort of patients who underwent CABG and actively participated in outpatient CR exhibited greater improvement in exercise capacity and better survival without cardiovascular events than their counterparts who did not participate.
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Affiliation(s)
- Hideki Origuchi
- Department of Internal Medicine, Japan Community Healthcare Organization Kyushu Hospital
| | | | | | | | - Hiroyuki Daida
- Department of Cardiology, Juntendo University Graduate School of Medicine
| | - Takashi Masuda
- Department of Angiology and Cardiology, Kitasato University Graduate School of Medical Sciences
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine
| | - Shigeru Makita
- Department of Cardiac Rehabilitation, Saitama International Medical Center, Saitama Medical University
| | - Kenji Ueshima
- Department of EBM Research, Institute for Advancement of Clinical Research and Translational Science, Kyoto University Hospital
| | | | | | - Hitoshi Adachi
- Department of Cardiology, Gunma Prefectural Cardiovascular Center
| | - Yoichi Goto
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
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Kim J, Lee JM, Choi SH, Choi KH, Park TK, Park SJ, Yang JH, Song YB, Hahn JY, Jang MJ, Koo BK, Gwon HC. Comparison of Exercise Performance and Clinical Outcome Between Functional Complete and Incomplete Revascularization. Korean Circ J 2020; 50:406-417. [PMID: 32096361 PMCID: PMC7098823 DOI: 10.4070/kcj.2019.0319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/20/2019] [Accepted: 12/27/2019] [Indexed: 01/09/2023] Open
Abstract
Background and Objectives Although percutaneous coronary intervention (PCI) is recommended to improve symptoms in patients with stable ischemic heart disease (SIHD), improvement of exercise performance is controversial. This study aimed to investigate changes in exercise duration after PCI according to functional completeness of revascularization by comparing pre- and post-PCI exercise stress test (EST). Methods Patients with SIHD were enrolled from a prospective PCI registry, and divided into 2 groups: 1) functional complete revascularization (CR) group had a positive EST before PCI and negative EST after PCI, 2) functional incomplete revascularization (IR) group had positive EST before and after PCI. Primary outcome was change in exercise duration after PCI and secondary outcome was major adverse cardiac events (MACE, a composite of any death, any myocardial infarction, and any ischemia-driven revascularization) at 3 years after PCI. Results A total of 256 patients (149 for CR group, and 107 for IR group) were eligible for analysis. Before PCI, exercise duration was not significantly different between the functional CR and IR groups (median 540 [interquartile range; IQR, 414, 602] vs. 480 [402, 589] seconds, p=0.091). After PCI, however, the CR group had a significantly higher increment of exercise duration than the IR group (median 62.0 [IQR, 12.0, 141.0] vs. 30.0 [−11.0, 103.5] seconds, p=0.011). The functional CR group also had a significantly lower risk of 3-year MACE (6.2% vs. 26.1%; adjusted hazard ratio, 0.19; 95% confidence interval, 0.09–0.41; p<0.001). Conclusions Functional CR showed a higher increment of exercise duration than functional IR.
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Affiliation(s)
- Jihoon Kim
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Joo Myung Lee
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. ,
| | - Seung Hyuk Choi
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - Ki Hong Choi
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Taek Kyu Park
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung Ji Park
- Cardiovascular Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong Hoon Yang
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young Bin Song
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Joo Yong Hahn
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mi Ja Jang
- Cardiac Rehabilitation and Prevention Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Bon Kwon Koo
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea
| | - Hyeon Cheol Gwon
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Predictors of pre-rehabilitation exercise capacity in elderly European cardiac patients – The EU-CaRE study. Eur J Prev Cardiol 2019; 27:1702-1712. [DOI: 10.1177/2047487319894676] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims Functional capacity is an important endpoint for therapies oriented to older adults with cardiovascular diseases. The literature on predictors of exercise capacity is sparse in the elderly population. In a longitudinal European study on effectiveness of cardiac rehabilitation of seven European countries in elderly (>65 years) coronary artery disease or valvular heart disease patients, predictors for baseline exercise capacity were determined, and reference ranges for elderly cardiac patients provided. Methods Mixed models were performed in 1282 patients (mean age 72.9 ± 5.4 years, 79% male) for peak oxygen consumption relative to weight (peak VO2; ml/kg per min) with centre as random factor and patient anthropometric, demographic, social, psychological and nutritional parameters, as well as disease aetiology, procedure, comorbidities and cardiovascular risk factors as fixed factors. Results The most important predictors for low peak VO2 were coronary artery bypass grafting or valve surgery, low resting forced expiratory volume, reduced left ventricular ejection fraction, nephropathy and peripheral arterial disease. Each cumulative comorbidity or cardiovascular risk factors reduced exercise capacity by 1.7 ml/kg per min and 1.1 ml/kg per min, respectively. Males had a higher peak VO2 per body mass but not per lean mass. Haemoglobin was significantly linked to peak VO2 in both surgery and non-surgery patients. Conclusions Surgical procedures, cumulative comorbidities and cardiovascular risk factors were the factors with the strongest relation to reduced exercise capacity in the elderly. Expression of peak VO2 per lean mass rather than body mass allows a more appropriate comparison between sexes. Haemoglobin is strongly related to peak VO2 and should be considered in studies assessing exercise capacity, especially in studies on patients after cardiac surgery.
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Mikkelsen N, Cadarso-Suárez C, Lado-Baleato O, Díaz-Louzao C, Gil CP, Reeh J, Rasmusen H, Prescott E. Improvement in VO2peak predicts readmissions for cardiovascular disease and mortality in patients undergoing cardiac rehabilitation. Eur J Prev Cardiol 2019; 27:811-819. [DOI: 10.1177/2047487319887835] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background Improvement in exercise capacity is a main goal of cardiac rehabilitation but the effects are often lost at long-term follow-up and thus also the benefits on prognosis. We assessed whether improvement in VO2peak during a cardiac rehabilitation programme predicts long-term prognosis. Methods and results We performed a retrospective analysis of 1561 cardiac patients completing cardiac rehabilitation in 2011–2017 in Copenhagen. Mean age was 63.6 (11) years, 74% were male and 84% had coronary artery disease, 6% chronic heart failure and 10% heart valve replacement. The association between baseline VO2peak and improvement after cardiac rehabilitation and being readmitted for cardiovascular disease and/or all-cause mortality was assessed with three different analyses: Cox regression for the combined outcome, for all-cause mortality and a multi-state model. During a median follow-up of 2.3 years, 167 readmissions for cardiovascular disease and 77 deaths occurred. In adjusted Cox regression there was a non-linear decreasing risk of the combined outcome with higher baseline VO2peak and with improvement of VO2peak after cardiac rehabilitation. A similar linear association was seen for all-cause mortality. Applying the multi-state model, baseline VO2peak and change in VO2peak were associated with risk of a cardiovascular disease readmission and with all-cause mortality but not with mortality in those having an intermediate readmission for cardiovascular disease. Conclusion VO2peak as well as change in VO2peak were highly predictive of future risk of readmissions for cardiovascular disease and all-cause mortality. The predictive value did not extend beyond the next admission for a cardiovascular event.
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Affiliation(s)
- Nicolai Mikkelsen
- Bispebjerg Frederiksberg Hospital, University of Copenhagen, Denmark
| | - Carmen Cadarso-Suárez
- Unit of Biostatistics, Department of Statistics, Mathematical Analysis, and Optimization, Universidade de Santiago de Compostela, Spain
| | - Oscar Lado-Baleato
- Unit of Biostatistics, Department of Statistics, Mathematical Analysis, and Optimization, Universidade de Santiago de Compostela, Spain
| | - Carla Díaz-Louzao
- Unit of Biostatistics, Department of Statistics, Mathematical Analysis, and Optimization, Universidade de Santiago de Compostela, Spain
| | - Carlos P Gil
- Cardiology and Coronary Care Department Hospital Clínico Universitario, Santiago de Compostela, Spain
| | - Jacob Reeh
- Bispebjerg Frederiksberg Hospital, University of Copenhagen, Denmark
| | - Hanne Rasmusen
- Bispebjerg Frederiksberg Hospital, University of Copenhagen, Denmark
| | - Eva Prescott
- Bispebjerg Frederiksberg Hospital, University of Copenhagen, Denmark
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Functional Capacity but Not Early Uptake of Cardiac Rehabilitation Predicts Readmission in Patients With Metabolic Syndrome. J Cardiovasc Nurs 2019; 33:306-312. [PMID: 29303869 DOI: 10.1097/jcn.0000000000000454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Phase II cardiac rehabilitation reduces hospital readmissions and cardiovascular disease risk factors and improves functional capacity. Cardiovascular disease risk factors double with patients with metabolic syndrome, a population less likely to adhere to cardiac rehabilitation. PURPOSE The aim of this study was to determine relationships between cardiac rehabilitation uptake timing, demographic variables and functional capacity, and readmission in patients with metabolic syndrome. METHODS This retrospective, medical records study involved 353 patients with metabolic syndrome who subsequently received cardiac rehabilitation. Logistic regression was used to examine relationships between time from discharge to cardiac rehabilitation uptake and readmission. Unordered categorical factors were compared between readmission groups using Pearson χ tests. Multivariable logistic regression was used to identify predictors of readmission. RESULTS Patients readmitted within 30 and 90 days of hospitalization were more often women (P ≤ .018) and nonwhite (P ≤ .002) and had lower functional capacity (P < .001). In multivariable analysis, white race (odds ratio [OR], 0.50 [95% confidence interval (CI), 0.25-0.99]; P = .045) and higher functional capacity (OR, 0.80 [95% CI, 0.68-0.93]; P = .005) were protective against hospital readmission within the first 90 days. Race, sex, and functional capacity remained significant predictors of readmission at 1 year. In multivariable analysis, only race (OR, 0.41 [95% CI, 0.22-0.79]; P = .007) and functional capacity (OR, 0.83 [95% CI, 0.73-0.95]; P = .007) were significant. Early cardiac rehabilitation was not associated with readmission at any time point (P > .05). CONCLUSIONS Sex, race, and functional capacity were important predictors of readmission for metabolic syndrome, even when cardiac rehabilitation intake was delayed. Results raise questions about the unique traits of patients with metabolic syndrome and need for novel approaches to improve cardiac rehabilitation utilization and functional capacity in metabolic syndrome.
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Rifai MA, Qureshi WT, Dardari Z, Keteyian SJ, Brawner CA, Ehrman JK, Ahmed A, Sakr S, Virani SS, Blaha MJ, Al-Mallah MH. The Interplay of the Global Atherosclerotic Cardiovascular Disease Risk Scoring and Cardiorespiratory Fitness for the Prediction of All-Cause Mortality and Myocardial Infarction: The Henry Ford ExercIse Testing Project (The FIT Project). Am J Cardiol 2019; 124:511-517. [PMID: 31221461 DOI: 10.1016/j.amjcard.2019.05.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/04/2019] [Accepted: 05/16/2019] [Indexed: 11/15/2022]
Abstract
Cardiorespiratory fitness (CRF) is inversely associated with atherosclerotic cardiovascular disease (ASCVD) risk. It is unclear whether the prognostic value of CRF differs by baseline estimated ASCVD risk. We studied a retrospective cohort of patients without known heart failure or myocardial infarction (MI) who underwent treadmill stress testing. CRF was measured by metabolic equivalents of task (METs) and ASCVD risk was calculated using the Pooled Cohorts Equations. Multivariable-adjusted Cox regressions analyses examined the association between METs and incident all-cause mortality and MI outcomes stratified by baseline ASCVD risk. The C-index evaluated risk discrimination while net reclassification improvement evaluated reclassification with CRF added to the ASCVD risk score. Our study population consisted of 57,999 patients of mean age 53 (13) years, 49% women, 64% white, 29% black. Over a median follow-up 11 years (interquartile range 8 to 14 years) there were 6,670 (11%) deaths, while there were 1,757 (3.0%) MIs over a median follow-up of 6 years (interquartile range 3 to 8 years). Among patients with ASCVD risk ≥20%, those with METs ≥12 had a 77% lower risk of all-cause mortality (Hazard ratio 0.23 95% confidence interval = 0.20, 0.27) and 67% lower risk of MI (Hazard ratio 0.33 95% confidence interval = 0.24, 0.46) compared to METs <6. Similar results were obtained for those with ASCVD risk <5%. Addition of METs to ASCVD risk score improved the C-statistic from 0.778 to 0.798 for all-cause mortality and 0.726 to 0.733 for MI (both p <0.001). Addition of METs to ASCVD risk score significantly reclassified risk of all-cause mortality (p <0.001) but not MI (p = 0.052). In conclusion, CRF is inversely associated with risk of all-cause mortality and MI at all levels of ASCVD risk, and provides incremental risk discrimination and reclassification beyond the ASCVD risk score.
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Affiliation(s)
- Mahmoud Al Rifai
- Department of Internal Medicine, The University of Kansas School of Medicine, Wichita, Kansas; Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Maryland
| | - Waqas T Qureshi
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan; Wake Forest University School of Medicine, Winston Salem, North Carolina
| | - Zeina Dardari
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Maryland
| | - Steven J Keteyian
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Clinton A Brawner
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Jonathan K Ehrman
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Amjad Ahmed
- Data Systems Group, Institute of Computer Science, University of Tartu, Tartu, Estonia
| | - Sherif Sakr
- Data Systems Group, Institute of Computer Science, University of Tartu, Tartu, Estonia
| | - Salim S Virani
- Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, Texas; Health Policy, Quality & Informatics Program, Michael E. DeBakey Veterans Affairs Medical Center, Health Services Research and Development Center for Innovations, Houston, Texas; Section of Cardiology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Maryland
| | - Mouaz H Al-Mallah
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan; Houston Methodist Hospital, Houston, Texas.
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Depression, Socioeconomic Factors, and Ethnicity as Predictors of Cardiorespiratory Fitness Before and After Cardiac Rehabilitation. J Cardiopulm Rehabil Prev 2019; 39:E1-E6. [DOI: 10.1097/hcr.0000000000000367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Cuenza LR, Yap EML, Ebba E. Assessment of the prognostic utility of the FIT treadmill score in coronary artery disease patients undergoing cardiac rehabilitation. J Cardiovasc Thorac Res 2019; 11:8-13. [PMID: 31024666 DOI: 10.15171/jcvtr.2019.02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 12/28/2018] [Indexed: 11/09/2022] Open
Abstract
Introduction: Cardiovascular fitness is an important goal in cardiac rehabilitation (CR) programs and is predictive of outcomes. We sought to determine the utility of a novel clinical treadmill score in determining prognosis of coronary artery disease (CAD) patients after CR. Methods: Demographic, clinical and exercise data of 262 patients (mean age 55.8 ± 10.1 years) who completed an outpatient CR program were analyzed. The FIT treadmill score was determined prior to program initiation and after completion. Patients were classified according to risk category using the FIT scores after CR completion and were followed up for the occurrence of 10 year all cause mortality. Results: On median follow up of 10.3 years, 52 patients died. An improvement of the FIT treadmill score by 18.2 points was associated with a 21% reduction in mortality (multivariate-adjusted Hazard Ratio 0.79, 95% CI 0.56-1.08, P≤0.05). Kaplan-Meier survival curves showed increased occurrence of mortality in the high-risk group. After adjustment for confounders a high-risk FIT score category on exit (HR: 2.7, 95% CI 1.41-5.17, P≤0.05) was predictive of increased mortality. Both an improvement in the FIT score (AUC=0.81) and the FIT score category on exit (AUC=0.92) had good discrimination in predicting mortality. Conclusion: The FIT treadmill score is predictive of all cause mortality in patients with CAD undergoing CR. An improvement in the FIT score after CR is associated with improved survival. The FIT score may be a useful prognostic marker of overall cardiovascular fitness and successful outcome for patients who participate in CR programs.
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Affiliation(s)
- Lucky R Cuenza
- Department of Adult Cardiology, Philippine Heart Center, East Avenue Quezon City, Manila, Philippines.,Section of Cardiac Rehabilitation, Philippine Heart Center, East Avenue Quezon City, Manila, Philippines
| | - Emily Mae L Yap
- Department of Adult Cardiology, Philippine Heart Center, East Avenue Quezon City, Manila, Philippines
| | - Edgardo Ebba
- Section of Cardiac Rehabilitation, Philippine Heart Center, East Avenue Quezon City, Manila, Philippines
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Alves AJ, Oliveira NL, Lopes S, Ruescas-Nicolau MA, Teixeira M, Oliveira J, Ribeiro F. Arterial Stiffness is Related to Impaired Exercise Capacity in Patients With Coronary Artery Disease and History of Myocardial Infarction. Heart Lung Circ 2018; 28:1614-1621. [PMID: 30318391 DOI: 10.1016/j.hlc.2018.08.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 08/04/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Augmented arterial stiffness and reduced cardiorespiratory fitness are associated with increased morbidity and mortality from coronary artery disease (CAD). The relationship between exercise capacity and arterial stiffness is independent of known influencing variables in CAD. This study aimed to analyse the interaction between exercise capacity, arterial stiffness and early vascular ageing in patients with CAD. METHODS This cross-sectional study included 96 CAD patients with myocardial infarction (55.9±10.9years, 81 men) referred to cardiac rehabilitation. Arterial stiffness was assessed using carotid-femoral pulse wave velocity (cf-PWV). Cardiopulmonary exercise test was performed to measure VO2peak. Comparisons of VO2peak across cf-PWV risk threshold values (high-risk cf-PWV≥10m/s) and tertile groups, and across cf-PWV threshold values and age groups (younger group<60 years) were performed. Correlation tests were used to study the association between pair of variables. RESULTS Patients with high-risk cf-PWV had lower VO2peak than those with low-risk cf-PWV (p<0.001). VO2peak decreased across tertiles of cf-PWV, showing significantly lower values in the third tertile (p<0.001). There were no differences in the VO2peak between younger patients with high-risk cf-PWV and older patients irrespective of their cf-PWV values. VO2peak showed an upward trend in younger patients with low-risk cf-PWV compared to their age-mates with high-risk cf-PWV (p=0.09). VO2peak was strongly and inversely correlated with cf-PWV (r=-0.502, p<0.001). CONCLUSIONS Arterial stiffening is associated with lower cardiorespiratory fitness in CAD patients with myocardial infarction. When its values are above risk threshold, exercise capacity is impaired regardless of the relationship between age and arterial stiffness.
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Affiliation(s)
- Alberto Jorge Alves
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University Institute of Maia, Maia, Portugal.
| | - Norton Luís Oliveira
- Research Center in Physical Activity, Health and Leisure, CIAFEL, Faculty of Sport, University of Porto, Porto, Portugal; Exercise Pathophysiology Research Laboratory, Hospital de Clínicas de Porto Alegre, Rio Grande do Sul, Brazil
| | - Susana Lopes
- School of Health Sciences and Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
| | | | - Madalena Teixeira
- Cardiology Department, Centro Hospitalar de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - José Oliveira
- Research Center in Physical Activity, Health and Leisure, CIAFEL, Faculty of Sport, University of Porto, Porto, Portugal
| | - Fernando Ribeiro
- School of Health Sciences and Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
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Younis A, Shaviv E, Nof E, Israel A, Berkovitch A, Goldenberg I, Glikson M, Klempfner R, Beinart R. The role and outcome of cardiac rehabilitation program in patients with atrial fibrillation. Clin Cardiol 2018; 41:1170-1176. [PMID: 29934991 DOI: 10.1002/clc.23001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Atrial fibrillation (AF) is associated with diminished cardiac function, and exercise tolerance. HYPOTHESIS We sought to investigate the role of cardiac rehabilitation program (CR) in patients with AF. METHODS The study included 2165 consecutive patients that participated in our CR program between the years 2009 to 2015. All were evaluated by a standard exercise stress test (EST) at baseline, and upon completion of at least 3 months of training. Participants were dichotomized according to baseline fitness and the degree of functional improvement. The combined primary end point was cardiac related hospitalization or all-cause mortality. RESULTS A total of 292 patients had history of AF, with a mean age of 68 ± 9 years old, 76% of which were males. The median predicted baseline fitness of AF patients was significantly lower compared to non-AF patients (103% vs 122%, P < 0.001, respectively). Prominent improvement was achieved in the majority of the patients in both groups (64% among AF patients and 63% among those without AF). Median improvement in fitness between stress tests was significantly higher in patients with AF (124% vs 110%, P < 0.001, respectively). Among AF patients, high baseline fitness was associated with a lower event rates (HR 0.40; 95%CI 0.23-0.70; P = 0.001). Moreover, prominent improvement during CR showed a protective effect (HR 0.83; 95% CI 0.69-0.99; P = 0.04). CONCLUSION In patients with AF participating in CR program, low fitness levels at baseline EST are associated with increased risk of total mortality or cardiovascular hospitalization during long-term follow-up. Improvement on follow-up EST diminishes the risk.
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Affiliation(s)
- Arwa Younis
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ella Shaviv
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eyal Nof
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ariel Israel
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Anat Berkovitch
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ilan Goldenberg
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.,Heart Research Program, University of Rochester, Rochester, New York
| | - Michael Glikson
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Heart Center, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Robert Klempfner
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Roy Beinart
- The Leviev Heart Center, Sheba Medical Center, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.,Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Limburg, the Netherlands
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Al Rifai M, Al-Mallah MH. Is pulse pressure a novel cardiovascular disease risk marker in secondary prevention? Atherosclerosis 2018; 277:175-176. [PMID: 30150081 DOI: 10.1016/j.atherosclerosis.2018.07.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 07/25/2018] [Indexed: 10/28/2022]
Affiliation(s)
- Mahmoud Al Rifai
- Department of Internal Medicine, The University of Kansas School of Medicine-Wichita, KS, USA; Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD, USA
| | - Mouaz H Al-Mallah
- Advanced Cardiac Imaging, King Abdulaziz Cardiac Center, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.
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Prognostic value of electrocardiogram exercise testing for risk stratification in asymptomatic coronary artery disease. Coron Artery Dis 2018; 28:664-669. [PMID: 28704241 DOI: 10.1097/mca.0000000000000526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND Several variables of electrocardiogram exercise testing (EET) predict cardiovascular events in the general population and in patients with coronary artery disease (CAD). However, most of the studies have not included patients with asymptomatic CAD. The aim of this study was to evaluate the prognostic value of EET in asymptomatic CAD patients. PATIENTS AND METHODS We carried out a retrospective single-center analysis including all patients with asymptomatic CAD documented by angiography who underwent EET from January 2010 to December 2013. A number of EET variables and three exercise scores [Duke Treadmill Score (DTS), Morise score, and FIT score] were analyzed. The primary endpoint was the combined incidence of myocardial infarction (MI), myocardial revascularization, and death from any cause during follow-up. RESULTS A total of 306 patients were included (mean age was 65±10 years, 61% had previous MI, and the median exercise capacity was 9.4±2.7 metabolic equivalent of task). The primary endpoint occurred in 15.7% of patients during 3.3 years of follow-up. The DTS and FIT were independent predictors of the primary endpoint unlike the Morise score (DTS: hazard ratio=0.91, 95% confidence interval: 0.85-0.99, P=0.018; FIT score: 0.99, 0.98-0.996, P=0.001; Morise score: 0.97, 0.93-1.02, P=0.20). The DTS was independent predictor of MI or revascularization, whereas FIT predicted death from any cause. Excluding patients with early revascularization, DTS had no predictive power at the composite endpoint. CONCLUSION In our population with asymptomatic CAD, FIT and DTS had significant value for risk prediction and consequently the EET can be a valid tool in the clinical follow-up of this population.
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Sakr S, Elshawi R, Ahmed A, Qureshi WT, Brawner C, Keteyian S, Blaha MJ, Al-Mallah MH. Using machine learning on cardiorespiratory fitness data for predicting hypertension: The Henry Ford ExercIse Testing (FIT) Project. PLoS One 2018; 13:e0195344. [PMID: 29668729 PMCID: PMC5905952 DOI: 10.1371/journal.pone.0195344] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 03/20/2018] [Indexed: 12/17/2022] Open
Abstract
This study evaluates and compares the performance of different machine learning techniques on predicting the individuals at risk of developing hypertension, and who are likely to benefit most from interventions, using the cardiorespiratory fitness data. The dataset of this study contains information of 23,095 patients who underwent clinician- referred exercise treadmill stress testing at Henry Ford Health Systems between 1991 and 2009 and had a complete 10-year follow-up. The variables of the dataset include information on vital signs, diagnosis and clinical laboratory measurements. Six machine learning techniques were investigated: LogitBoost (LB), Bayesian Network classifier (BN), Locally Weighted Naive Bayes (LWB), Artificial Neural Network (ANN), Support Vector Machine (SVM) and Random Tree Forest (RTF). Using different validation methods, the RTF model has shown the best performance (AUC = 0.93) and outperformed all other machine learning techniques examined in this study. The results have also shown that it is critical to carefully explore and evaluate the performance of the machine learning models using various model evaluation methods as the prediction accuracy can significantly differ.
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Affiliation(s)
- Sherif Sakr
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudia Arabia
- University of Taru, Taru, Estonia
| | - Radwa Elshawi
- Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
- University of Taru, Taru, Estonia
| | - Amjad Ahmed
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudia Arabia
| | - Waqas T. Qureshi
- Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, United States of America
| | - Clinton Brawner
- Heart and Vascular Institute, Henry Ford Hospital System, Detroit, MI, United States of America
| | - Steven Keteyian
- Heart and Vascular Institute, Henry Ford Hospital System, Detroit, MI, United States of America
| | - Michael J. Blaha
- Johns Hopkins Medicine, Baltimore, Maryland, United States of America
| | - Mouaz H. Al-Mallah
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudia Arabia
- Heart and Vascular Institute, Henry Ford Hospital System, Detroit, MI, United States of America
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Exercise Training Workloads Upon Exit From Cardiac Rehabilitation in Men and Women: THE HENRY FORD HOSPITAL EXPERIENCE. J Cardiopulm Rehabil Prev 2018; 37:257-261. [PMID: 27755258 DOI: 10.1097/hcr.0000000000000210] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PURPOSE To describe exercise training workloads, estimated as metabolic equivalents of task (METs) both upon exit from cardiac rehabilitation (CR) and as the change in MET level following CR, stratified by age, sex, initial MET level, number of sessions completed, and qualifying event at entry into CR. METHODS A retrospective study involving 8319 (31% female) patients who completed ≥9 exercise training sessions in the early outpatient CR program at Henry Ford Hospital. Exercise training MET levels achieved during CR were estimated on the basis of the speed and grade recorded from a treadmill. Exercise training METs at the start of CR were defined as the average of the second and third sessions, whereas MET level upon exit from CR was determined from the average of the last 2 patient encounters. RESULTS The overall mean MET level while training just prior to exit from CR was 3.9 ± 1.4 (4.1 ± 1.4 and 3.3 ± 1.0 in men and women, respectively). The mean change in METs after CR was 1.3 ± 1.1 (+45% ± 37%) and 0.9 ± 0.7 (+40% ± 32%) in men and women, respectively. CONCLUSIONS In a large and demographically diverse cohort of patients who participated in CR, increases in mean workload (ie, METs) during exercise training were observed that approximated 45% in men and 40% in women. These data could be considered when establishing benchmarks for program-related performance outcome measures.
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Al-Mallah MH, Sakr S, Al-Qunaibet A. Cardiorespiratory Fitness and Cardiovascular Disease Prevention: an Update. Curr Atheroscler Rep 2018; 20:1. [PMID: 29340805 DOI: 10.1007/s11883-018-0711-4] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
PURPOSE OF REVIEW Cardiovascular diseases account for nearly one third of all deaths globally. Improving exercise capacity and cardiorespiratory fitness (CRF) has been an important target to reduce cardiovascular events. In addition, the American Heart Association defined decreased physical activity as the fourth risk factor for coronary artery disease. Multiple large cohort studies have evaluated the impact of CRF on outcomes. In this review, we will discuss the role of CRF in reducing cardiovascular morbidity and mortality. RECENT FINDINGS Recent data suggest that CRF has an important role in reducing not only cardiovascular and all-cause mortality, but also incident myocardial infarction, hypertension, diabetes, atrial fibrillation, heart failure, and stroke. Most recently, its role in cancer prevention started to emerge. CRF protective effects have also been seen in patients with prior comorbidities like prior coronary artery disease, heart failure, depression, end-stage renal disease, and stroke. The prognostic value of CRF has been demonstrated in various patient populations and cardiovascular conditions. Higher CRF is associated with improved survival and decreased incidence of cardiovascular diseases (CVD) and other comorbidities including hypertension, diabetes, heart failure, and atrial fibrillation.
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Affiliation(s)
- Mouaz H Al-Mallah
- King Abdulaziz Cardiac Center, Ministry of National Guard-Health Affairs, King Abdulaziz Medical City, P.O. Box 22490, Riyadh, 11426, Kingdom of Saudi Arabia. .,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia. .,King Abdullah International Medical Research Center, Riyadh, Kingdom of Saudi Arabia.
| | - Sherif Sakr
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Ada Al-Qunaibet
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia.,King Abdullah International Medical Research Center, Riyadh, Kingdom of Saudi Arabia
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Sabbag A, Mazin I, Rott D, Hay I, Gang N, Tzur B, Goldkorn R, Goldenberg I, Klempfner R, Israel A. The prognostic significance of improvement in exercise capacity in heart failure patients who participate in cardiac rehabilitation programme. Eur J Prev Cardiol 2018; 25:354-361. [PMID: 29313373 DOI: 10.1177/2047487317750427] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Introduction There are limited contemporary data regarding the association between improvement in cardiovascular fitness in heart failure patients who participate in a cardiac rehabilitation programme and the risk of subsequent hospitalisations. Methods The study population comprised 421 patients with heart failure who participated in our cardiac rehabilitation programme between the years 2009 and 2016. All were evaluated by a standard exercise stress test before initiation, and underwent a second exercise stress test on completion of 3 ± 1 months of training. Participants were dichotomised by fitness level at baseline, according to the percentage of predicted age and sex norms achieved. Each group was further divided according to its degree of functional improvement, between the baseline and the follow-up exercise stress test. Major improvement was defined as improvement above the median value in each group. The combined primary endpoint was cardiac hospitalisation or all-cause mortality. Results A total of 211 (50%) patients had low baseline fitness (<73% (median)) for age and sex-predicted metabolic equivalents of task value. Compared to patients with higher fitness, those with a low baseline fitness were more commonly smokers, had diabetes and were obese ( P < 0.05 for all). Multivariable Cox proportional hazard regression analysis showed that, independent of baseline capacity, an improvement of 5% of predicted fitness was associated with a corresponding 10% reduced risk of cardiac hospitalisation or all-cause mortality ( P < 0.001). Conclusion In heart failure patients participating in a cardiac rehabilitation programme, improved cardiovascular fitness is associated with reduced mortality or cardiac hospitalisation risk during long-term follow-up, independent of baseline fitness.
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Affiliation(s)
- Avi Sabbag
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
| | - Israel Mazin
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
| | - David Rott
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
| | - Ilan Hay
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
| | - Nelly Gang
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
| | - Boaz Tzur
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
| | - Ronen Goldkorn
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
| | | | | | - Ariel Israel
- Leviev Heart Center, Sheba Medical Center Ramat Gan, Israel
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Sakr S, Elshawi R, Ahmed AM, Qureshi WT, Brawner CA, Keteyian SJ, Blaha MJ, Al-Mallah MH. Comparison of machine learning techniques to predict all-cause mortality using fitness data: the Henry ford exercIse testing (FIT) project. BMC Med Inform Decis Mak 2017; 17:174. [PMID: 29258510 PMCID: PMC5735871 DOI: 10.1186/s12911-017-0566-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 11/22/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Prior studies have demonstrated that cardiorespiratory fitness (CRF) is a strong marker of cardiovascular health. Machine learning (ML) can enhance the prediction of outcomes through classification techniques that classify the data into predetermined categories. The aim of this study is to present an evaluation and comparison of how machine learning techniques can be applied on medical records of cardiorespiratory fitness and how the various techniques differ in terms of capabilities of predicting medical outcomes (e.g. mortality). METHODS We use data of 34,212 patients free of known coronary artery disease or heart failure who underwent clinician-referred exercise treadmill stress testing at Henry Ford Health Systems Between 1991 and 2009 and had a complete 10-year follow-up. Seven machine learning classification techniques were evaluated: Decision Tree (DT), Support Vector Machine (SVM), Artificial Neural Networks (ANN), Naïve Bayesian Classifier (BC), Bayesian Network (BN), K-Nearest Neighbor (KNN) and Random Forest (RF). In order to handle the imbalanced dataset used, the Synthetic Minority Over-Sampling Technique (SMOTE) is used. RESULTS Two set of experiments have been conducted with and without the SMOTE sampling technique. On average over different evaluation metrics, SVM Classifier has shown the lowest performance while other models like BN, BC and DT performed better. The RF classifier has shown the best performance (AUC = 0.97) among all models trained using the SMOTE sampling. CONCLUSIONS The results show that various ML techniques can significantly vary in terms of its performance for the different evaluation metrics. It is also not necessarily that the more complex the ML model, the more prediction accuracy can be achieved. The prediction performance of all models trained with SMOTE is much better than the performance of models trained without SMOTE. The study shows the potential of machine learning methods for predicting all-cause mortality using cardiorespiratory fitness data.
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Affiliation(s)
- Sherif Sakr
- King AbdulAziz Cardiac Center, Ministry of National Guard, Health Affairs, King Abdulaziz Medical City for National Guard - Health affairs, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Department Mail Code: 1413, P.O. Box 22490, Riyadh, 11426, Kingdom of Saudi Arabia
| | - Radwa Elshawi
- Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Amjad M Ahmed
- King AbdulAziz Cardiac Center, Ministry of National Guard, Health Affairs, King Abdulaziz Medical City for National Guard - Health affairs, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Department Mail Code: 1413, P.O. Box 22490, Riyadh, 11426, Kingdom of Saudi Arabia
| | - Waqas T Qureshi
- Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC, USA
| | - Clinton A Brawner
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI, USA
| | - Steven J Keteyian
- King AbdulAziz Cardiac Center, Ministry of National Guard, Health Affairs, King Abdulaziz Medical City for National Guard - Health affairs, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Department Mail Code: 1413, P.O. Box 22490, Riyadh, 11426, Kingdom of Saudi Arabia
| | | | - Mouaz H Al-Mallah
- King AbdulAziz Cardiac Center, Ministry of National Guard, Health Affairs, King Abdulaziz Medical City for National Guard - Health affairs, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, Department Mail Code: 1413, P.O. Box 22490, Riyadh, 11426, Kingdom of Saudi Arabia. .,Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI, USA.
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Abell B, Glasziou P, Hoffmann T. The Contribution of Individual Exercise Training Components to Clinical Outcomes in Randomised Controlled Trials of Cardiac Rehabilitation: A Systematic Review and Meta-regression. SPORTS MEDICINE - OPEN 2017; 3:19. [PMID: 28477308 PMCID: PMC5419959 DOI: 10.1186/s40798-017-0086-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 04/27/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND While the clinical benefits of exercise-based cardiac rehabilitation are well established, there is extensive variation in the interventions used within these trials. It is unknown whether variations in individual components of these exercise interventions provide different relative contributions to overall clinical outcomes. This study aims to systematically examine the relationship between individual components of the exercise intervention in cardiac rehabilitation (such as intensity and frequency) and clinical outcomes for people with coronary heart disease. METHODS In this systematic review, eligible trials were identified via searches of databases (PubMed, Allied and Complementary Medicine, EMBASE, PEDro, Science Citation Index Expanded, CINAHL, The Cochrane Library, SPORTDiscus) from citation tracking and hand-searching. Studies were included if they were randomised trials of a structured exercise intervention (versus usual care) for participants with coronary heart disease and reported at least one of cardiovascular mortality, total mortality, myocardial infarction or revascularisation outcomes. Each included trial was assessed using the Cochrane Risk of Bias Tool. Authors were also contacted for missing intervention details or data. Random effects meta-analysis was performed to calculate a summary risk ratio (RR) with 95% confidence interval (CI) for the effect of exercise on outcomes. Random effects meta-regression and subgroup analyses were conducted to examine the association between pre-specified co-variates (exercise components or trial characteristics) and each clinical outcome. RESULTS Sixty-nine trials were included, evaluating 72 interventions which differed markedly in terms of exercise components. Exercise-based cardiac rehabilitation was effective in reducing cardiovascular mortality (RR 0.74, 95% CI 0.65 to 0.86), total mortality (RR 0.90, 95% CI 0.83 to 0.99) and myocardial infarction (RR 0.80, 95% CI 0.70 to 0.92). This effect generally demonstrated no significant differences across subgroups of patients who received various types of usual care, more or less than 150 min of exercise per week and of differing cardiac aetiologies. There was however some heterogeneity observed in the efficacy of cardiac rehabilitation in reducing total mortality based on the presence of lipid lowering therapy (I 2 = 48%, p = 0.15 for subgroup treatment interaction effect). No single exercise component was identified through meta-regression as a significant predictor of mortality outcomes, although reductions in both total (RR 0.81, p = 0.042) and cardiovascular mortality (RR 0.72, p = 0.045) were observed in trials which reported high levels of participant exercise adherence, versus those which reported lower levels. A dose-response relationship was found between an increasing exercise session time and increasing risk of myocardial infarction (RR 1.01, p = 0.011) and the highest intensity of exercise prescribed and an increasing risk of percutaneous coronary intervention (RR 1.05, p = 0.047). CONCLUSIONS Exercise-based cardiac rehabilitation is effective at reducing important clinical outcomes in patients with coronary heart disease. While our analysis was constrained by the quality of included trials and missing information about intervention components, there appears to be little differential effect of variations in exercise intervention, particularly on mortality outcomes. Given the observed effect between higher adherence and improved outcomes, it may be more important to provide exercise-based cardiac rehabilitation programs which focus on achieving increased adherence to the exercise intervention.
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Affiliation(s)
- Bridget Abell
- Centre for Research in Evidence-Based Practice, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, 4229, Australia.
| | - Paul Glasziou
- Centre for Research in Evidence-Based Practice, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, 4229, Australia
| | - Tammy Hoffmann
- Centre for Research in Evidence-Based Practice, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, 4229, Australia
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Same RV, Al Rifai M, Feldman DI, Billups KL, Brawner CA, Dardari ZA, Ehrman JK, Keteyian SJ, Al-Mallah MH, Blaha MJ. Prognostic value of exercise capacity among men undergoing pharmacologic treatment for erectile dysfunction: The FIT Project. Clin Cardiol 2017; 40:1049-1054. [PMID: 28805967 DOI: 10.1002/clc.22768] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 07/04/2017] [Accepted: 07/11/2017] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Vascular erectile dysfunction (ED) has been identified as a potentially useful risk factor for predicting future cardiovascular events, particularly in younger men. Because these men typically score more favorably on traditional cardiovascular disease risk assessment tools, there exists a gap in knowledge for how to most appropriately identify those men who would benefit from more aggressive treatments. To date, no studies have examined the impact of fitness on cardiovascular outcomes in men with ED. This study sought to examine the prognostic impact of maximal exercise capacity on cardiovascular-related outcomes in men ages 40 to 60 years being treated for ED. HYPOTHESIS We hypothesized that there would be an independent association between higher baseline fitness level and lower cardiovascular events. METHODS We analyzed 1152 men with pharmacy claims file-confirmed active pharmacologic treatment for ED from the Henry Ford Exercise Testing (FIT) Project (1991-2009). All patients were free of coronary heart disease and heart failure, and underwent clinician-referred exercise stress testing, with fitness measured in metabolic equivalents of task (METs). Multivariable Cox proportional hazard models adjusted for traditional cardiovascular risk factors were used to study the association between fitness and all-cause mortality, major adverse cardiovascular events (MACE) (defined as myocardial infarction or revascularization), and incident type 2 diabetes mellitus. RESULTS The mean age of the population was 53 years, with 39% African Americans. In multivariable analysis, each 1 MET of fitness was associated with a 16% lower risk of death (hazard ratio [HR]: 0.84, 95% confidence interval [CI]: 0.76-0.94, P = 0.002), and a nonsignificant reduction in MACE (HR: 0.89, 95% CI: 0.79-1.003, P = 0.048), and incident diabetes (HR: 0.92, 95% CI: 0.85-1.01, P = 0.129). CONCLUSIONS Higher baseline fitness is associated with improved cardiovascular prognosis in a population of middle-aged men treated for ED.
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Affiliation(s)
- Robert V Same
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins Medicine, Baltimore, Maryland
| | - Mahmoud Al Rifai
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins Medicine, Baltimore, Maryland.,Department of Medicine, University of Kansas School of Medicine, Wichita, Kansas
| | - David I Feldman
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins Medicine, Baltimore, Maryland.,University of Miami Miller School of Medicine, Miami, Florida
| | - Kevin L Billups
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins Medicine, Baltimore, Maryland.,Johns Hopkins Brady Urologic Institute, Johns Hopkins Medicine, Baltimore, Maryland
| | - Clinton A Brawner
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Zeina A Dardari
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins Medicine, Baltimore, Maryland
| | - Jonathan K Ehrman
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Steven J Keteyian
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Mouaz H Al-Mallah
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan.,King Saud bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, King Abdulaziz Cardiac Center, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins Medicine, Baltimore, Maryland
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Al Rifai M, Patel J, Hung RK, Nasir K, Keteyian SJ, Brawner CA, Ehrman JK, Sakr S, Blumenthal RS, Blaha MJ, Al-Mallah MH. Higher Fitness Is Strongly Protective in Patients with Family History of Heart Disease: The FIT Project. Am J Med 2017; 130:367-371. [PMID: 27751899 DOI: 10.1016/j.amjmed.2016.09.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 09/20/2016] [Accepted: 09/20/2016] [Indexed: 01/07/2023]
Abstract
BACKGROUND Cardiorespiratory fitness protects against mortality; however, little is known about the benefits of improved fitness in individuals with a family history of coronary heart disease. We studied the association between cardiorespiratory fitness and risk of incident coronary heart disease and all-cause mortality, hypothesizing an inverse relationship similar to individuals without a family history of coronary heart disease. METHODS We included 57,999 patients (aged 53 ± 13 years; 49% were female; 29% were black) from the Henry Ford Exercise Testing (FIT) Project. Cardiorespiratory fitness was expressed in metabolic equivalents of task based on exercise stress testing. Family history was determined as self-reported coronary heart disease in a first-degree relative at any age. We used Cox proportional hazards models adjusted for demographics and cardiovascular disease risk factors to examine the association between cardiorespiratory fitness and risk of incident coronary heart disease and mortality over a median (interquartile range) follow-up of 5.5 (5.6) and 10.4 (6.8) years, respectively. RESULTS Overall, 51% reported a positive family history. Each 1-unit metabolic equivalent increase was associated with lower incident coronary heart disease and mortality risk regardless of family history status. The hazard ratio and 95% confidence interval for a negative family history and a positive family history were 0.87 (0.84-0.89) and 0.87 (0.85-0.89) for incident coronary heart disease and 0.83 (0.82-0.84) and 0.83 (0.82-0.85) for mortality, respectively. There was no significant interaction between family history and categoric cardiorespiratory fitness, sex, or age (P >.05 for all). CONCLUSIONS Higher cardiorespiratory fitness is strongly protective in all patients regardless of family history status, supporting recommendations for regular exercise in those with a family history.
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Affiliation(s)
- Mahmoud Al Rifai
- The University of Kansas, School of Medicine, Wichita; Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md
| | - Jaideep Patel
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md; Department of General of Internal Medicine, Virginia Commonwealth University Medical Center, Richmond.
| | - Rupert K Hung
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md
| | - Khurram Nasir
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md; Center for Prevention and Wellness, Baptist Health South Florida, Miami, Fla
| | | | | | | | - Sherif Sakr
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Roger S Blumenthal
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, Md
| | - Mouaz H Al-Mallah
- Henry Ford Hospital, Detroit, Mich; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; King Abdulaziz Cardiac Center, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
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Brawner CA, Al-Mallah MH, Ehrman JK, Qureshi WT, Blaha MJ, Keteyian SJ. Change in Maximal Exercise Capacity Is Associated With Survival in Men and Women. Mayo Clin Proc 2017; 92:383-390. [PMID: 28185659 DOI: 10.1016/j.mayocp.2016.12.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/22/2016] [Accepted: 12/15/2016] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To describe the relationship between change in maximal exercise capacity (MEC) over time and risk of all-cause mortality separately in men and women. PATIENTS AND METHODS Consecutive patients (n=10,854; mean ± SD age, 54±11 years; 43% women; 30% nonwhite) who completed 2 physician-referred exercise tests between January 2, 1991, and May 28, 2009, were identified from the Henry Ford Exercise Testing (FIT) Project. The MEC was quantified in metabolic equivalents of task (METs) calculated from peak workload on a treadmill and adjusted to the equivalent for a 50-year-old man. Multivariable Cox proportional hazards regression was performed to assess risk of all-cause mortality associated with change in MEC based on (1) change from age-/sex-adjusted low fitness (<8 METs) to intermediate or high fitness and (2) an absolute change in METs. RESULTS Relative to patients with low fitness at both tests, increasing from low to intermediate or high fitness was associated with lower risk of all-cause mortality (adjusted hazard ratio [aHR] = 0.63 [95% CI, 0.45-0.87] in men and 0.56 [95% CI, 0.34-0.91] in women). Each 1-MET increase in age-/sex-adjusted MEC between baseline and follow-up was associated with an aHR of 0.87 (95% CI, 0.84-0.91) in men and 0.84 (95% CI, 0.79-0.89) in women, with no significant interaction by sex (P=.995). Similar aHRs were observed in a subgroup with intermediate fitness at baseline. CONCLUSION In men and women referred for an exercise stress test, change in MEC over time is inversely related to risk of all-cause mortality.
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Affiliation(s)
- Clinton A Brawner
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI.
| | - Mouaz H Al-Mallah
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI; King Saud bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, King Abdul-Aziz Cardiac Center, King Abdul-Aziz Medical City, Riyadh, Saudi Arabia
| | - Jonathan K Ehrman
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
| | - Waqas T Qureshi
- Department of Cardiology, Wake Forest University, Winston-Salem, NC
| | - Michael J Blaha
- Ciccarone Center for the Prevention of Heart Disease, Johns Hopkins Medicine, Baltimore, MD
| | - Steven J Keteyian
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
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Brinks J, Fowler A, Franklin BA, Dulai J. Lifestyle Modification in Secondary Prevention: Beyond Pharmacotherapy. Am J Lifestyle Med 2017; 11:137-152. [PMID: 30202327 PMCID: PMC6125029 DOI: 10.1177/1559827616651402] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/19/2016] [Accepted: 05/04/2016] [Indexed: 12/17/2022] Open
Abstract
Despite significant advances in medical technology and pharmacology, cardiovascular disease (CVD) remains a major contributor to health care expenses and the leading cause of death in the United States. Patients with established CVD and their health care providers are challenged with achieving cardiovascular risk reduction to decrease the likelihood of recurrent cardiovascular events. This "secondary prevention" can be achieved, in part, through adherence to prescribed pharmacotherapies that favorably modify major coronary risk factors (ie, hypertension, hypercholesterolemia, diabetes, and obesity). However, lifestyle modification can also be helpful in this regard, providing independent and additive benefits to the associated reductions in cardiovascular morbidity and mortality. Accordingly, physicians and other health care providers should routinely counsel their coronary patients to engage in structured exercise and increased lifestyle physical activity, consume a heart-healthy diet, quit smoking and avoid secondhand smoke, and purposefully address psychosocial stressors that may elevate cardiovascular risk. These lifestyle interventions, either as an adjunct to medication therapy or independently in those patients where medications may be poorly tolerated, cost prohibitive, or ineffective, can significantly decrease cardiovascular mortality and the risk of recurrent cardiac events.
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Affiliation(s)
- Jenna Brinks
- Jenna Brinks, MS, Manager, Preventive Cardiology and Cardiac Rehabilitation, William Beaumont Hospital, Beaumont Health Center, Cardiac Rehabilitation, 4949 Coolidge Highway, Royal Oak, MI 48073, USA; e-mail:
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Chaudhry S, Kumar N, Behbahani H, Bagai A, Singh BK, Menasco N, Lewis GD, Sperling L, Myers J. Abnormal heart-rate response during cardiopulmonary exercise testing identifies cardiac dysfunction in symptomatic patients with non-obstructive coronary artery disease. Int J Cardiol 2017; 228:114-121. [DOI: 10.1016/j.ijcard.2016.11.235] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 11/07/2016] [Accepted: 11/10/2016] [Indexed: 01/30/2023]
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45
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Panosian J, Ding SA, Wewalka M, Simonson DC, Goebel-Fabbri A, Foster K, Halperin F, Vernon A, Goldfine AB. Physical Activity in Obese Type 2 Diabetes After Gastric Bypass or Medical Management. Am J Med 2017; 130:83-92. [PMID: 27555097 PMCID: PMC5164867 DOI: 10.1016/j.amjmed.2016.07.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 07/19/2016] [Accepted: 07/19/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND The purpose of this study was to compare effects of Roux-en-Y gastric bypass versus a multidisciplinary, group-based medical diabetes and weight management program on physical fitness and behaviors. METHODS Physical behavior and fitness were assessed in participants of the study Surgery or Lifestyle With Intensive Medical Management in the Treatment of Type 2 Diabetes (SLIMM-T2D) (NCT01073020), a randomized, parallel-group trial conducted at a US academic hospital and diabetes clinic with 18- to 24-month follow-up. Thirty-eight type 2 diabetes patients with hemoglobin A1c ≥6.5% and body mass index 30-42 kg/m2 were randomized to Roux-en-Y gastric bypass or the medical program. A 6-minute walk test to evaluate fitness, self-reported physical activity, standardized physical surveys, and cardiometabolic risk assessment were performed at baseline and after intervention. RESULTS Both groups similarly improved 6-minute walk test distance, with greater improvements in oxygen saturation and reduced heart rate after surgery. Self-reported physical activity improved similarly at 18-24 months after interventions, although exercise increased gradually after surgery, whereas early substantial increases in the medical group were not fully sustained. Self-reported total and physical health were similar by Short Form-36 but improved more in the Impact of Weight on Quality of Life survey after surgery. Improvement in cardiovascular risk scores, HbA1c, and body mass index were greater after surgery. CONCLUSION In this small, randomized study, both interventions led to therapeutic lifestyle changes and improved objective and self-reported physical fitness. Greater improvements in heart rate, oxygen saturation, and perceived impact of weight on health were seen after surgery, which could be attributable to greater weight loss. The clinical importance of these improvements with greater weight loss warrants further investigation.
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Affiliation(s)
- Jennifer Panosian
- Research Division, Section of Clinical Behavioral and Outcomes Research, Joslin Diabetes Center, Boston, Mass
| | - Su-Ann Ding
- Research Division, Section of Clinical Behavioral and Outcomes Research, Joslin Diabetes Center, Boston, Mass; Harvard Medical School, Boston, Mass
| | - Marlene Wewalka
- Research Division, Section of Clinical Behavioral and Outcomes Research, Joslin Diabetes Center, Boston, Mass; Harvard Medical School, Boston, Mass
| | - Donald C Simonson
- Harvard Medical School, Boston, Mass; Division of Endocrinology, Brigham and Women's Hospital, Boston, Mass
| | - Ann Goebel-Fabbri
- Research Division, Section of Clinical Behavioral and Outcomes Research, Joslin Diabetes Center, Boston, Mass; Harvard Medical School, Boston, Mass
| | - Kathleen Foster
- Research Division, Section of Clinical Behavioral and Outcomes Research, Joslin Diabetes Center, Boston, Mass
| | - Florencia Halperin
- Research Division, Section of Clinical Behavioral and Outcomes Research, Joslin Diabetes Center, Boston, Mass; Harvard Medical School, Boston, Mass; Division of Endocrinology, Brigham and Women's Hospital, Boston, Mass
| | - Ashley Vernon
- Harvard Medical School, Boston, Mass; Division of Endocrinology, Brigham and Women's Hospital, Boston, Mass; Division of General & Gastrointestinal Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Allison B Goldfine
- Research Division, Section of Clinical Behavioral and Outcomes Research, Joslin Diabetes Center, Boston, Mass; Harvard Medical School, Boston, Mass; Division of Endocrinology, Brigham and Women's Hospital, Boston, Mass.
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Kokkinos PF, Faselis C, Myers J, Narayan P, Sui X, Zhang J, Lavie CJ, Moore H, Karasik P, Fletcher R. Cardiorespiratory Fitness and Incidence of Major Adverse Cardiovascular Events in US Veterans: A Cohort Study. Mayo Clin Proc 2017; 92:39-48. [PMID: 27876315 DOI: 10.1016/j.mayocp.2016.09.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 08/27/2016] [Accepted: 09/29/2016] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To assess the association between exercise capacity and the risk of major adverse cardiovascular events (MACEs). PATIENTS AND METHODS A symptom-limited exercise tolerance test was performed to assess exercise capacity in 20,590 US veterans (12,975 blacks and 7615 whites; mean ± SD age, 58.2±11.0 years) from the Veterans Affairs medical centers in Washington, District of Columbia, and Palo Alto, California. None had a history of MACE or evidence of ischemia at the time of or before their exercise tolerance test. We established quintiles of cardiorespiratory fitness (CRF) categories based on age-specific peak metabolic equivalents (METs) achieved. We also defined the age-specific MET level associated with no risk for MACE (hazard ratio [HR], 1.0) and formed 4 additional CRF categories based on METs achieved below (least fit and low fit) and above (moderately fit and highly fit) that level. Multivariate Cox models were used to estimate HR and 95% CIs for mortality across fitness categories. RESULTS During follow-up (median, 11.3 years; range, 0.3-33.0 years), 2846 individuals experienced MACEs. The CRF-MACE association was inverse and graded. The risk for MACE declined precipitously for those with a CRF level of 6.0 METs or higher. When considering CFR categories based on the age-specific MET threshold, the risk increased for those in the 2 CFR categories below that threshold (HR, 1.95; 95% CI, 1.73-2.21 and HR, 1.41; 95% CI, 1.27-1.56 for the least-fit and low-fit individuals, respectively) and decreased for those above it (HR, 0.77; 95% CI, 0.68-0.87 and HR, 0.57; 95% CI, 0.48-0.67 for moderately fit and highly fit, respectively). CONCLUSION Increased CRF is inversely and independently associated with the risk for MACE. When an age-specific MET threshold was defined, the risk for MACE increased significantly for those below that threshold and decreased for those above it (P<.001).
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Affiliation(s)
- Peter F Kokkinos
- Cardiology Division, Veterans Affairs Medical Center, Washington, DC; Georgetown University School of Medicine, Washington, DC; Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC.
| | - Charles Faselis
- Cardiology Division, Veterans Affairs Medical Center, Washington, DC; George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Jonathan Myers
- Cardiology Division, VA Palo Alto Health Care System, Palo Alto, CA; Stanford University, Stanford, CA
| | - Puneet Narayan
- Cardiology Division, Veterans Affairs Medical Center, Washington, DC
| | - Xuemei Sui
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC
| | - Jiajia Zhang
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC
| | - Carl J Lavie
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School, University of Queensland School of Medicine, New Orleans, LA
| | - Hans Moore
- Cardiology Division, Veterans Affairs Medical Center, Washington, DC; Georgetown University School of Medicine, Washington, DC
| | - Pamela Karasik
- Cardiology Division, Veterans Affairs Medical Center, Washington, DC; Georgetown University School of Medicine, Washington, DC; George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Ross Fletcher
- Cardiology Division, Veterans Affairs Medical Center, Washington, DC; Georgetown University School of Medicine, Washington, DC
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Effect of Beta-Blocker Therapy, Maximal Heart Rate, and Exercise Capacity During Stress Testing on Long-Term Survival (from The Henry Ford Exercise Testing Project). Am J Cardiol 2016; 118:1751-1757. [PMID: 27670797 DOI: 10.1016/j.amjcard.2016.08.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/19/2016] [Accepted: 08/19/2016] [Indexed: 12/16/2022]
Abstract
Whether lower heart rate thresholds (defined as the percentage of age-predicted maximal heart rate achieved, or ppMHR) should be used to determine chronotropic incompetence in patients on beta-blocker therapy (BBT) remains unclear. In this retrospective cohort study, we analyzed 64,549 adults without congestive heart failure or atrial fibrillation (54 ± 13 years old, 46% women, 29% black) who underwent clinician-referred exercise stress testing at a single health care system in Detroit, Michigan from 1991 to 2009, with median follow-up of 10.6 years for all-cause mortality (interquartile range 7.7 to 14.7 years). Using Cox regression models, we assessed the effect of BBT, ppMHR, and estimated exercise capacity on mortality, with adjustment for demographic data, medical history, pertinent medications, and propensity to be on BBT. There were 9,259 deaths during follow-up. BBT was associated with an 8% lower adjusted achieved ppMHR (91% in no BBT vs 83% in BBT). ppMHR was inversely associated with all-cause mortality but with significant attenuation by BBT (per 10% ppMHR HR: no BBT: 0.80 [0.78 to 0.82] vs BBT: 0.89 [0.87 to 0.92]). Patients on BBT who achieved 65% ppMHR had a similar adjusted mortality rate as those not on BBT who achieved 85% ppMHR (p >0.05). Estimated exercise capacity further attenuated the prognostic value of ppMHR (per-10%-ppMHR HR: no BBT: 0.88 [0.86 to 0.90] vs BBT: 0.95 [0.93 to 0.98]). In conclusion, the prognostic value of ppMHR was significantly attenuated by BBT. For patients on BBT, a lower threshold of 65% ppMHR may be considered for determining worsened prognosis. Estimated exercise capacity further diminished the prognostic value of ppMHR particularly in patients on BBT.
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Mancini GJ, Baker S, Bergeron J, Fitchett D, Frohlich J, Genest J, Gupta M, Hegele RA, Ng D, Pearson GJ, Pope J, Tashakkor AY. Diagnosis, Prevention, and Management of Statin Adverse Effects and Intolerance: Canadian Consensus Working Group Update (2016). Can J Cardiol 2016; 32:S35-65. [DOI: 10.1016/j.cjca.2016.01.003] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/03/2016] [Accepted: 01/05/2016] [Indexed: 12/24/2022] Open
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Yun HJ, Shah RV, Murthy VL. Exercise and Bayes' Theorem: Some things never go out of style. J Nucl Cardiol 2016; 23:379-83. [PMID: 26391502 DOI: 10.1007/s12350-015-0281-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 08/27/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Hong Jun Yun
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, 1500 E. Medical Center Dr, SPC 5873, Ann Arbor, MI, 48109-5873, USA
| | - Ravi V Shah
- Division of Cardiovascular Medicine, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Venkatesh L Murthy
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, 1500 E. Medical Center Dr, SPC 5873, Ann Arbor, MI, 48109-5873, USA.
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, University of Michigan, Ann Arbor, MI, USA.
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Shaya GE, Al-Mallah MH, Hung RK, Nasir K, Blumenthal RS, Ehrman JK, Keteyian SJ, Brawner CA, Qureshi WT, Blaha MJ. High Exercise Capacity Attenuates the Risk of Early Mortality After a First Myocardial Infarction: The Henry Ford Exercise Testing (FIT) Project. Mayo Clin Proc 2016; 91:129-39. [PMID: 26848000 DOI: 10.1016/j.mayocp.2015.11.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/01/2015] [Accepted: 11/20/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To examine the effect of objectively measured exercise capacity (EC) on early mortality (EM) after a first myocardial infarction (MI). PATIENTS AND METHODS This retrospective cohort study included 2061 patients without a history of MI (mean age, 62±12 years; 38% [n=790] women; 56% [n=1153] white) who underwent clinical treadmill stress testing in the Henry Ford Health System from January 1, 1991, through May 31, 2009, and suffered MI during follow-up (MI event proportion, 3.4%; mean time from the exercise test to MI, 6.1±4.3 years). Exercise capacity was categorized on the basis of peak metabolic equivalents (METs) achieved: less than 6, 6 to 9, 10 to 11, and 12 or more METs. Early mortality was defined as all-cause mortality within 28, 90, or 365 days of MI. Multivariable logistic regression models were used to assess the effect of EC on the risk of mortality at each time point post-MI adjusting for baseline demographic characteristics, cardiovascular risk factors, medication use, indication for stress testing, and year of MI. RESULTS The 28-day EM rate was 10.6% overall, and 13.9%, 10.7%, 6.9%, and 6.0% in the less than 6, 6 to 9, 10 to 11, and 12 or more METs categories, respectively (P<.001). Patients who died were more likely to be older, be less fit, be nonobese, have treated hypertension, and have a longer duration from baseline to incident MI (P<.05). Adjusted regression analyses revealed a decreased risk of EM with increasing EC categories. A 1-MET higher EC was associated with an 8% to 10% lower risk of mortality across all time points (28 days: odds ratio [OR], 0.92; 95% CI, 0.87-0.98; P=.006; 90 days: OR, 0.90; 95% CI, 0.86-0.95; P<.001; 365 days: OR, 0.91; 95% CI, 0.87-0.94; P<.001). CONCLUSION Higher baseline EC was independently associated with a lower risk of early death after a first MI.
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Affiliation(s)
- Gabriel E Shaya
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD; University of Miami Miller School of Medicine, Miami, FL
| | - Mouaz H Al-Mallah
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD; King Saud bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, King AbdulAziz Cardiac Center, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia; Henry Ford Hospital, Detroit, MI
| | - Rupert K Hung
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD
| | - Khurram Nasir
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD; Baptist Health South Florida, Miami
| | - Roger S Blumenthal
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD
| | | | | | | | - Waqas T Qureshi
- Wake Forest University School of Medicine, Winston-Salem, NC
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD.
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