Patient  1 2 3 4 5 Age 80 87 74 88 84 Type of perforation RPP RPP RPP Combined Combined Treatment Conservative Conservative Conservative Surgery Conservative Cause of death ERCP MI PC ERCP CHF

Table 3: Deceased patients in the perforation group. RPP; retroperitoneal perforation, IPP; intraperitoneal perforation, CHF: Congestive heart failure; MI :myocardial infarction, PC: pancreatic cancer.