血运重建对冠心病患者心率恢复的影响

摘要

目的 观察成功冠状动脉(冠脉)血运重建对冠心病患者心率恢复(heart rate recovery,HRR)的影响,探索冠脉血运重建效果无创性评价途径.方法 纳入稳定型心绞痛(SAP)并行PCI术患者34例为试验组,同期冠脉造影正常者34例为对照组,均为男性.试验组患者术前3日及术后1周行平板运动试验,对照组冠脉造影前3日行平板运动试验,均采用次极量标准Bruce方案,评价峰心率及峰心率后心率恢复情况.结果 与对照组相比,试验组患者术前峰心率和HRR均显著降低,PCI术后则显著增加.结论 HRR可作为评价PCI手术疗效的有效途径.%Objective To observe the influence of successful coronary revascularization on heart rate recovery ( HRR ) in patients with coronary heart disease, and explore the noninvasive method for reviewing effect of revascularization. Methods The patients ( n=34 ) with stable angina pectoris ( SAP ) after percutaneous coronary intervention ( PCI ) were selected as experimental group, and other 34 patients with normal results of coronary angiography ( CAG ) were selected as control group ( all patients were male ) . The experimental group was given treadmill exercise test ( TET ) 3 days before and one week after PCI and control group was given TET 3 days before CAG. The peak heart rate ( HR ) and HR recovery after peak HR were reviewed by applying submaximal Bruce' s protocol. Results The peak HR and HRR before PCI decreased significantly, and increased significantly after PCI in experimental group compared with control group. Conclusion HRR can be taken as a effective method for reviewing the curative effect of PCI.