急性心肌梗塞急诊PTCA后ST段改变及其临床意义Reduction of ST-Segement elevation after direct percutaneous transluminal coronary angioplasty (PTCA) in acute myocardial infarction
魏峥,贾三庆,顼志敏,王乐丰,陈方,李田昌,胡大一
摘要(Abstract):
目的 对95 例急性心肌梗塞(AMI)患者急诊经皮冠状动脉腔内成形术(PTCA)后30 分钟体表心电图ST 段改变进行分析,探讨此时ST 段改变与PTCA 效果、心肌损害程度及心功能预后的关系。方法 根据ST 段改变分三组。组Ⅰ:ST 段明显下降(≥50% )组55 例,组Ⅱ:ST 段下降(< 50% )组32 例,组Ⅲ:ST 段无变化或抬高者组8 例。测定术后肌酸激酶(CK)的变化,同时测定术前及术后心功能。结果 组Ⅰ与组Ⅱ为PTCA 成功者,术后组ⅡCK 明显高于组Ⅰ。术后4~6 周组Ⅱ射血分数(EF% )明显低于组Ⅰ。结论 急性心肌梗塞患者PTCA 术后30 分钟体表心电图ST 段的改变能间接反映PT-CA 疗效。较准确早期了解心肌细胞灌注情况并判定预后
关键词(KeyWords): 经皮冠状动脉腔内成形术;心肌梗塞;心电图
基金项目(Foundation):
作者(Author): 魏峥,贾三庆,顼志敏,王乐丰,陈方,李田昌,胡大一
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