用球囊导管堵塞猪冠状动脉左前降支,造成急性心肌缺血,心电图连续监测发现ST-T电交替(STTA)发生率高达67.3%(33/49).其演变过程完整,表现独特丰富,特报告如下.材料和方法取幼猪(9.5—17.0kg),雌雄不拘.皮下注射吗啡1mg/kg,30min后静脉注射戊巴比妥纳30mg/kg麻醉,注射肝素5mg/kg防止血栓形成.麻醉后作气管切开插管术,接人工呼吸机,16—20次/min.在X线透视下自左颈动脉插入 A balloon catheter was used to block the left anterior descending coronary artery of the porcine coronary artery, resulting in acute myocardial ischemia. The continuous monitoring of electrocardiogram showed that the incidence of ST-T alternation (STTA) was as high as 67.3% (33/49) Special reports are as follows Materials and methods Take piglets (9.5-17.0kg), male or female. Subcutaneous morphine 1mg / kg, 30min after intravenous injection of pentobarbital 30mg / kg anesthesia, injection of heparin 5mg / kg to prevent thrombosis. After anesthesia for tracheotomy catheterization, then artificial respirator, 16-20 times / min in the X-ray from the left carotid artery insertion