ERCP术后胰腺炎(post ERCP pancreatitis,PEP)定义为: ERCP术后持续24 h腹痛同时伴有血淀粉酶升高3倍以上,并使患者住院时间延长2 d以上。该定义为多数研究所接受,但仍有一些研究将血淀粉酶升高5倍以上或测量血脂肪酶作为划分PEP的依据。由于各研究采用的PEP的定义不尽相同,接受ERCP治疗的人群条件不同以及各研究中心 ERCP Post-ERCP pancreatitis (PEP) was defined as a continuous increase in blood amylase by more than 3 times with abdominal pain lasting 24 h after ERCP and an increase in hospitalization for more than 2 days. This definition is accepted by most research institutes, but there are still some studies that elevate blood amylase more than 5-fold or measure blood lipase as the basis for dividing PEP. Because of the different definitions of PEP used in each study, the conditions of the population undergoing ERCP treatment and the research centers