摘要
本文分析了75例冠状动脉粥样硬化性心脏病患者的冠状动脉及左心室造影结果与心电图V_1导联P波终末电势(简称PTFv_1)的关系及意义。发现PTFv_1的阳性率在冠状动脉明显狭窄组中非常显著地高于冠状动脉正常组(P<0.01),且冠状动脉受累支数愈多(包括有心肌梗塞者),PTFv_1的阳性率也愈高。而且PTFv_1阳性组的左心室射血分数及左室舒张末期压力的异常率显著地高于PTFv_1阴性组(P<0.01)。提示冠心病患者的PTFv_1的变化在一定程度上能反映冠状动脉病变损害程度及由此引起的左心室功能损害的严重程度。文中分析了PTFv_1的异常值标准以≤-0.3mm·s为合适。
Correlation between the records of coronary angiography and left ventriculbgraphy and those of P wave terminal force (PTFv_1) in 75 cases of coronary heart diseases was studied. It was found that the positive rate of PTFv_1 was markedly higher in the group with severe lesions of coronary artery than that with normalcoronary artery (P<0.01). The more the number of injured coronary artery existed (including myocardial infarction lesions), the higher the positive rate. The rates of abnormal left ventricular ejection fraction (LVEF) and left ventricular end-diastolic pressure (LVEDP) in the PTFv_1 positive group were also higher than those in the PTFv_1 normal group (P<0.01). It suggested that the changes of PTFv_1 could show the degree of injury in coronary artery lesion as well as in left ventricular function. Aocording to the data, PTFv_1 value of≤-0.03 mm·s was considered as abnormal. The mechanism of PTFv_1 and its significance in the prognosis of myocardial infarction are discussed.
出处
《上海医学》
CAS
CSCD
北大核心
1990年第7期386-389,共13页
Shanghai Medical Journal
