آثار توانبخشي قلبي (تمرين درماني ) در بيماران پس از پيوند باي پس عروق كرونري

Effects of Cardiac Rehabilitation in Patients after Coronary Artery Bypass Grafting

Background and Objectives: Today, cardiovascular diseases are the leading cause of death and one of the major causes of morbidity in many countries. Although medical interventions lead to reduction of mortality rate for cardiovascular diseases in recent years, the risk of these disorders is yet significantly high in industrial societies. As most of clinicians emphasize the need fo prevention rather than symptomatic treatment, cardiac rehabilitation programs are medically and economically effective methods for achieving this goal. Materials and Methods: In this study we selected 100 patients who were referred to cardiac rehabilitation center, after ruling out those cases who had contraindications to exercise therapy. Then, second phase of cardiac rehabilitation was started with standard training program on treadmill and stationary bike along with stretching exercise before and after each training session, and this process continued for 8 weeks. Results: After 8 weeks cardiac rehabilitation, clinically and statistically significant improvement was seen in exercise capacity as demonstrated by increase in METs (+10%). Other alterations in various parameters included reduction at resting heart rate (-6%), increase in peak heart rate at maximal exercise (+18%), mild decrease in systolic blood pressure (-4%) , significant reduction of total cholesterol (-9%) and LDL-cholesterol (-10%) , increase in HDL-cholesterol (+6%), and reducion of triglycerides (-13%). Although exercise training had substantial effects on other parameters, there were no statistically significant differences in body fat percent, diastolic blood pressure and fasting blood sugar before and after rehabilitation. Conclusion: Exercise training as a simple therapeutic method with low risk and low cost after coronary artery bypass grafting, is effective to reduce many cardiac risk factors and leads to rapid and effective return of patients to daily living, and occupational and recreational activities.