Methods Twenty miniature pigs were all performed myocardial ablation by catheter and were at random equally divided into four groups (n = 5 in each) according to the volume and the injection velocity of intracoronary absolute alcohol.

• 方法用20只小型猪，全部接受经导管心肌化学消融术，根据冠状动脉内无水酒精注射量、注射速度随机分为4组，每组5只。