EST was successful with standard method in 63% of cases, wire-guided EST in 24%, precut papillotomy in 4%, and needle knife papillotomy in 5%.

• 在总共100次的切开术，标准型电刀成功63次，导线引导电刀成功24次，其馀13次使用针刀（共8次，失败3次）或前切型电刀（共5次，失败1次）。