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一些实验中,心电交替现象(EA)时有发生,文献对共发生规律及机制的阐述尚欠深入。本实验目的在于探索急性缺血心肌心外膜电图(EpiEG)EA的某些发生规律及病理意义。 给10只健康成年麻醉开胸犬静脉注射654_2 10mg/kg,随即结扎左冠脉前降支(LAD)并维持10分钟(654_2加结扎)形
In some experiments, alternation of electrocardiogram (EA) has occurred from time to time, the literature on the co-occurrence rules and mechanisms are still underdeveloped. The purpose of this experiment is to explore some of the occurrence and pathological significance of acute ischemic myocardial electrocardiogram (EpiEG) EA. Ten healthy adult anesthetized thoracic dogs were given intravenous injection of 654_2 10 mg / kg, followed by ligation of left anterior descending coronary artery (LAD) for 10 minutes (654_2 plus ligation)