1. Effect of exercise-based cardiac rehabilitation on clinical outcomes in patients with myocardial infarction in the absence of obstructive coronary artery disease (MINOCA)
- Author
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Shi-Jun Wang, Yu-Juan Zhu, Chang-Lin Zhai, Chun-Yan Zhu, Zhuo-Xuan Zou, Chao-Jie He, and Hui-Lin Hu
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,Myocardial Infarction ,Coronary Artery Disease ,030204 cardiovascular system & hematology ,Coronary Angiography ,Coronary artery disease ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Heart rate ,medicine ,Humans ,Prospective Studies ,030212 general & internal medicine ,Myocardial infarction ,Treadmill ,Prospective cohort study ,Cardiac Rehabilitation ,Rehabilitation ,medicine.diagnostic_test ,business.industry ,medicine.disease ,Angiography ,Cardiology ,Cardiology and Cardiovascular Medicine ,business ,Mace - Abstract
Myocardial infarction in the absence of obstructive coronary artery disease (MINOCA) is characterized by clinical evidence of myocardial infarction with nonobstructive coronary stenosis on angiography (stenosis 50%). Studies on the effect that exercise-based cardiac rehabilitation (CR) has on outcomes in MINOCA patients are lacking. Therefore, the purpose of this study was to determine the effect of exercise-based CR on clinical outcomes in patients with MINOCA.A total of 524 participants with MINOCA were recruited in this prospective cohort study from August 2014 to October 2016 and followed for three years. We randomly divided 524 patients into an exercise-based cardiac rehabilitation group (CR+) and a control group (CR-). The CR+ group followed a home-based exercise-training program three times a week during the three years of moderate continuous training (MCT; 65%-75% of peak heart rate) on a bicycle or treadmill.After one year of follow-up, the Short Form 36 (SF-36) survey showed apparent improvement in the mean physical health score in the CR+ group compared with the CR- group (P 0.01). During the three-year follow-up, all-cause mortality occurred in 60 individuals, and major adverse cardiovascular events (MACE) happened in 136 individuals. Kaplan-Meier curves indicated a significant reduction in all-cause mortality (log-rank P 0.05) and MACE (log-rank P 0.01) in the CR+ group. A multivariate Cox regression analysis indicated that exercise-based CR was associated with a significant reduction in all-cause mortality (hazard ratio [HR] = 0.483; 95% confidence interval [CI], 0.279-0.818; P 0.01) and MACE (HR = 0.574; 95% CI, 0.403-0.827; P 0.001).A long-term exercise-based CR program was associated with superior physical health and a significant reduction in all-cause mortality and MACE in patients with MINOCA.
- Published
- 2020
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