肝移植术后胆道狭窄发生率高达4%~43%。内镜逆行胰胆管造影术(endoscopic retrograde cholangiopancreatography,ERCP)是肝移植术后胆道并发症的首选治疗方案[1]。ERCP术后胰腺炎(post ERCP pancreatitis, PEP)是ERCP治疗最常见的并发症,