急性下壁心肌梗死胸前导联ST段下降的意义(附161例临床分析)

Significance of Precordial ST Segment Depression in Acute Transmural Inferior Myocardial Infarction.(An analysis of 161 cases)

总结了急性透壁性下壁心肌梗死161例,并在发病后10天内作选择性冠状动脉造影术。认为早期心电图心前导联 ST 段下降组较无 ST 段下降组的多支冠状动脉病变多,病变血管近端阻塞较多,梗死面积大,心室射血分数低,急性期并发症多。认为心电图心前导联 ST 段的改变可作为早期估价预后的一项重要指标。

The impact of associated early precordial ST segment depression in 161 cases with transmu- ral inferior myocardial infarction(ATIMI)on selective coronary angiographic and clinical outcome.There were 121 men and 40 women.The age ranged from 31—77 years with a mean of 57.8+7.2.ATIMI with precordial ST segment depression(Group 1)and ATIMI without precordial ST segment depression(Group 2)were present in 67 and 94 patients respectively. ATIMI with early precordial ST segment depression was found more frequently in coronary disease involving multivessels and in the occlusion in right coronary artery(was proximal in location resulting in a larger zone of infarction).The ejection fraction of left ventricular was lower in Group 1 than Group 2 and complication rates tended to be higher in Group 1.These results suggest that ATIMI with early preeordial ST segment depression predicts a worse prognosis.