运动试验评价心肌梗死恢复期PCI治疗的近远期疗效

Exercise testing evaluation of the impact of PCI on the patients with myocardial infarction

目的评价心肌梗死恢复期经皮冠状动脉介入治疗术(PCI)对患者近期及远期的临床效果。方法对30例首次心肌梗死患者,平均于发病5.8±2.7周行PCI,并于术前(3.0±2.9天)、术后(4.8±2.5天)及随访期(术后6.2±1.7月)进行平板运动试验,以观察PCI对运动耐量的作用。结果PCI组术后早期运动耐量、运动持续时间、最大心率及心率-血压乘积明显增高。PCI后随访期患者运动耐量、运动持续时间较术前明显增高,但最大心率及心率-血压乘积无明显变化。结论在心肌梗死恢复期,PCI能改善患者的近期及远期左室功能及提高运动耐量。

Objective To assess the late and long-term impact of percutaneous transluminal coronary intervention （PCI） on the patient with myocardial infarction. Methods Thirty patients, successful PCI was performed 5.8 ± 2.7 weeks after acute myocardial infarction, Treadmill testing was carried out 3.0 ± 2.9 days before and 4.8± 2.5 days after PTCA and in follow-up （6.2±1.7months）. Results In the early time after PCI, exercise tolerance, duration, maximal heart-rate and rate-pressure product were increased. During follow-up, exercise tolerance and exercise duration were significantly improved, but maximal heart rate and rate-pressure product remain unchanged. Conclusions PCI performed during the recovery phase of acute myocardial infarction may significantly improve exercise capacity and functional status of the patients.