Effect of cardiopulmonary rehabilitation exercise on sinus heart rate oscillations in elderly patients with acute ST segment elevation myocardial infarction after percutaneous coronary intervention
Effect of cardiopulmonary rehabilitation exercise on sinus heart rate oscillations in elderly patients with acute ST segment elevation myocardial infarction after percutaneous coronary intervention
Objective To investigate the effect of cardiopulmonary rehabilitation exercise on sinus heart rate oscillations in elderly patients with acute ST segment elevation myocardial infarction(ASTEMI)after percutaneous coronary intervention(PCI).Methods The 99 elderly ASTEMI patients admitted to Longyan Second Hospital from June 2021 to October 2023 were selected as research objects and underwent PCI.According to different postoperative rehabilitation intervention measures,the patients were divided into control group(49 cases;routine rehabilitation intervention)and observation group(50 cases;cardiac rehabilitation exercise),and treated for 3 months after surgery.The indexes of sinus heart rate oscillations[turbulence onset(TO)and turbulence slope(TS)],cardiopulmonary function[maximum oxygen intake(VO2max),maximum metabolic equivalent(METmax),maximum oxygen intake per heartbeat(VO2max/HR)],diastolic function of heart[left atrial volume index(LAVI),peak deceleration time(DT)of mitral valve early diastolic blood flow,left ventricular flow propagation velocity(FPV),left atrial volume(LAV)]and incidence rates of cardiovascular adverse events(arrhythmia,angina pectoris,heart failure)between two groups were compared.Results After intervention,TO of observation group was lower than that of control group,and TS was higher[TO:(1.88±0.19)%vs.(2.17±0.24)%;TS(ms/RR):3.13±0.42 vs.2.95±0.25;both P＜0.05].The VO2max,METmax and VO2max/HR of observation group were higher than those of control group[VO2max(mL·min-1·kg-1):24.65±3.11 vs.21.35±2.64;METmax:8.62±1.63 vs.7.25±1.58;VO2max/HR(mL):17.06±2.55 vs.15.14±2.18;all P＜0.05].The LAVI and LAV in observation group were lower than those of control group,and DT and FPV were higher[LAVI(mL/m2):25.14±2.11 vs.30.54±2.46;LAV(mL):28.23±4.16 vs.37.11±5.02;DT(ms):129.32±10.14 vs.116.31±8.02;FPV(cm/s):51.49±4.05 vs.47.53±3.81;all P＜0.05].The incidence rate of cardiovascular adverse events in observation group was lower than that in control group(4.00%vs.18.37%,P＜0.05).Conclusion Cardiopulmonary rehabilitation exercise in elderly ASTEMI patients after PCI could improve the sinus heart rate oscillation,reduce cardiovascular adverse events,and promote the recovery of cardiopulmonary function and cardiac diastolic function.
维普
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