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观察了14只狗在急性心肌梗塞早期的心内膜电除颤阈值.用结扎左冠状动脉前降支的方法造成狗急性心肌梗塞,测定梗塞前后能使狗心内膜除颤成功的最小能量(阈值).观察结果显示,狗在实验性急性心肌梗塞早期,心内膜电除颤阈值不增高,对狗进行心内膜除颤时以20J的释放能量为宜.
The threshold of endocardial defibrillation was observed in 14 dogs at the early stage of acute myocardial infarction.Acute myocardial infarction was induced by ligation of left anterior descending coronary artery and the minimum energy of successful defibrillation of dog before and after infarction (Threshold) .The observation showed that dogs in the early experimental acute myocardial infarction, endocardial defibrillation threshold is not increased, the dog during endocardial defibrillation with 20J release of energy is appropriate.