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目的:于急性心肌梗塞3～4周对梗塞相关的冠状动脉(IRCA)开通,观察此方法对左室重构及心功能的影响。方法:通过超声心动图测定冠脉开通前左室重构及左室功能指标,术后并进行随访。并选取同期未行血管开通病例为对照。结果:开通组与未开通组相比1年后,左室舒张末容积(EDV)、左室收缩末容积(ESV)、左室舒张末弧长(EDC)及节段性室壁运动异常(RWMA)范围均减小(P<001),而左室射血分数(EF)升高,左室舒张末弧长(EDC)及节段性室壁运动异常(RWMA)范围均减小(P<001),而RWMA程度改善,积分减低。结论:急性心肌梗塞恢复期IRCA开通,能防止左室重构,保护左室功能。
OBJECTIVE: To establish infarct-related coronary arteries (IRCA) 3 to 4 weeks after acute myocardial infarction and observe the effect of this method on left ventricular remodeling and cardiac function. Methods: Left ventricular remodeling and left ventricular function before coronary artery opening were measured by echocardiography. Postoperative follow-up was performed. And did not choose the same period opened the case of vascular control as a control. RESULTS: After one year, the left ventricular end-diastolic volume (EDV), left ventricular end-systolic volume (ESV), left ventricular end-diastolic arc length (EDC) and segmental wall motion abnormalities (P <0.001). However, the left ventricular ejection fraction (EF), left ventricular end-diastolic arc length (EDC) and segmental wall motion abnormalities (RWMA) <001), while the level of RWMA improved and the integral decreased. Conclusion: The recovery of acute myocardial infarction IRCA opened, to prevent left ventricular remodeling, protection of left ventricular function.