Resumen

RIVAS-ESTANY, Eduardo et al. Effects of long-term exercise training on left ventricular function and remodeling in patients with anterior wall myocardial infarction. Arch. Cardiol. Méx. [online]. 2013, vol.83, n.3, pp.167-173. ISSN 1665-1731.  https://doi.org/10.1016/j.acmx.2013.04.014.

Objective: To assess the effects of long-term exercise training on the function and remodeling of the left ventricle after myocardial infarction. Methods: We studied 90 patients with a first acute anterior-wall myocardial infarction, all received conventional medical treatment. Symptom-limited maximal exercise stress tests, echocardiograms and effort-rest isotopic ventriculographies at 2, 6 and 12 months after myocardial infarction were performed; the follow-up time averaged 36.3 ± 17 months. All patients joined a cardiac rehabilitation program with moderate or intense exercise training lasting at least a year. Of all patients, 41.1% suffered severe left ventricle dysfunction. Results: Ergometric parameters that expressed functional capacity increased significantly (P< .0005) at the sixth month evaluation and remained unchanged after a year. There was significant decrease (P< .01) of exercise myocardial ischemia at 6 months. The variables that measured size and function of left ventricle did not change during evolution. Morbidity amounted to 16.7% and total mortality of the series was 13.3%, with 8.9% of cardiovascular cause. Conclusions: Long-term exercise training showed no deleterious effects on left ventricle function or remodeling and beneficial functional and clinical effects were obtained in these rehabilitated postinfarction patients.

Palabras llave : Exercise; Myocardial infarction; Remodeling; Cardiac rehabilitation; Cuba.

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