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目的 :探讨急性下壁心肌梗死 (AIMI)时 ,V7～ 9导联 ST段抬高对判断梗死相关动脉 (IRA)、梗死范围及近期愈后的作用。方法 :对 146例 AIMI患者的心电图及有关临床资料进行分析。结果 :与单纯 AIMI患者相比较 ,AIMI伴 V7～ 9导联 ST段抬高的患者中回旋支为 IRA的比例较高 (40 .9% ,P <0 .0 2 5 )、CK峰值高 (P <0 .0 0 1) ,左心室功能差 (均 P <0 .0 0 1)、严重快速性心律失常及总的心脏事件发生率高 (P <0 .0 2 5～ 0 .0 0 5 )。结论 :V7～ 9导联 ST段抬高对判断 AIMI患者的 IRA、梗死范围及近期愈后有重要价值
Objective: To investigate the role of ST segment elevation in V7 ~ 9 lead in judging infarct-related artery (IRA), infarct size and prognosis in patients with acute inferior myocardial infarction (AIMI). Methods: The electrocardiogram and clinical data of 146 AIMI patients were analyzed. Results: Compared with patients with AIMI alone, the ratio of IRA was higher in the AIMI patients with ST segment elevation in V7 ~ 9 (40.9%, P <0. P <0.001), poor left ventricular function (all P <0.001), severe tachyarrhythmia and total cardiac events (P <0.05) 5). Conclusion: The ST segment elevation of V7 ~ 9 leads is of great value in judging IRA, infarct size and prognosis of patients with AIMI