急性前壁心肌梗死时心电图下壁导联ST段改变与左前降支长度和病变部位的关系  

Relation between ST-segment changes on inferior wall leads and length and lesion site of the left anterior descending coronary artery during anterior wall acute myocardial infarction

作　　者：叶玲娣[1] 

机构地区：[1]浙江大学医学院附属第一医院心电图室,杭州310003

出　　处：《中华心律失常学杂志》2003年第1期43-45,共3页Chinese Journal of Cardiac Arrhythmias

摘　　要：目的　探讨急性前壁心肌梗死时下壁ST段改变与左前降支 (LAD)长度和病变部位的关系。方法　对 75例急性前壁心肌梗死患者的临床资料进行回顾性分析 ,根据心肌梗死初期是否伴有下壁ST段改变而将患者分成 3组 ,即伴有下壁ST段压低者为Ⅰ组、伴有下壁ST段抬高者为Ⅱ组、下壁ST段无改变者为Ⅲ组 ,并与冠状动脉造影结果进行对照。结果　Ⅰ组中 72 %患者为LAD非优势近端病变 ;Ⅱ组中 6 0 %患者为LAD优势远端病变 ;Ⅲ组中LAD优势近端病变与LAD非优势远端病变所占比例相似。结论　急性前壁心肌梗死时下壁ST段改变可能与LAD长度和病变部位有关。Objective To investigate the relationship between inferior wall leads ST segment changes and length and lesion site of the left anterior descending coronary artery (LAD) during anterior wall acute myocardial infarction.Methods Seventy five patients with anterior wall acute myocardial infarction were analyzed retrospectively and divided into three group: group Ⅰ with inferior wall leads ST segment depression,group Ⅱ with inferior wall leads ST segment elevation,group Ⅲ without inferior wall leads ST segment changes.All data were compared with findings of coronary angiography.Results Seventy two percent of group Ⅰ were proximal lesion of LAD and non LAD dominated.Sixty percent of group Ⅱ were distal lesion of LAD and LAD dominated.In group Ⅲ,percentage of LAD dominated proximal lesion was the same as that of non LAD dominated distal lesion.Conclusion ST segment changes on inferior wall leads during anterior wall acute myocardial infarction may be related to the length and lesion site of LAD.

关 键 词：急性前壁心肌梗死 心电图 下壁导联ST段 左前降支长度 病变部位 

分 类 号：R542.22[医药卫生—心血管疾病]