Effect of home exercise rehabilitation on cardiopulmonary function in patients with varying degrees of coronary revascularization

Abstract

Objective To investigate the effect of home exercise rehabilitation on cardiopulmonary function in patients with varying degrees of coronary revascularization. Methods A total of 93 patients who were diagnosed with acute coronary syndrome and underwent percutaneous coronary intervention from September 2020 to September 2022 and received home exercise rehabilitation were selected from the database of Cardiac Rehabilitation Center. According to the residual syntax score (rSS), the patients were divided into rSS<8 group with 51 patients and rSS≥8 group with 42 patients. The cardiopulmonary function exercise test (CPET) was used to evaluate cardiopulmonary function, and the two groups were compared in terms of the changes in CPET parameters after 6 months of home exercise rehabilitation. Results After 6 months of home exercise rehabilitation, both groups had significant increases in oxygen uptake at anaerobic threshold, peak oxygen uptake, oxygen pulse rate at anaerobic threshold, and peak oxygen pulse rate (t=-2.953--5.483,P<0.05). There were significant differences in the changes of carbon dioxide ventilation efficiency at anaerobic threshold and peak carbon dioxide ventilation efficiency after home exercise rehabilitation between the two groups (Z=-2.046,-2.206,P<0.05). Conclusion Home exercise rehabilitation can improve the cardiopulmonary function of patients with acute coronary syndrome after percutaneous coronary intervention and bring more benefits for cardiac function in patients with rSS≥8.

Keywords

• cardiac rehabilitation|acute coronary syndrome|percutaneous coronary intervention|heart function tests|respiratory function tests|residual syntax score