There were 15 normal canines for study,The LBB were blocked with RFCA in 9 canines,the complete atrioventricular block(AVB) occurred in 5 canines and right bundle branch block(RBBB) occurred in 1 canine.

• 对 15条犬心左束支施行RFCA ,9条犬成功消融左束支、5条犬发生完全性房室阻滞 (AVB)、1条犬造成右束支阻滞。