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本文研究了冠状动脉晚期再通对急性心肌梗塞(AMI)犬左室功能的影响。用心血管造影方法分别测定犬冠状动脉前降支永久结扎组及晚期开放组左室功能,结果显示两组左室射血分数(EF 值)在早期无差异,一个月后后者 EF 值明显高于前者,两组心肌梗塞范围无明显差别,而梗塞处室壁相对厚度有差异,提示冠脉晚期再通可改善左室功能,机制可能与减轻梗塞伸展有关。
This study was to investigate the effect of late recanalization of the coronary arteries on left ventricular function in dogs with acute myocardial infarction (AMI). The left ventricular function in the permanent ligation of the anterior descending coronary artery of the canine and the left ventricular opening in the late open coronary artery were measured by the method of angiography. The results showed that there was no difference in the EF between the two groups at one time and the latter at one month later In the former, there was no significant difference between the two groups in the range of myocardial infarction, while the relative thickness of the infarct wall was different, suggesting that recanalization of the coronary artery may improve left ventricular function, the mechanism may be related to the reduction of infarct extension.