Middle segment preserving pancreatectomy versus total pancreatectomy: a comparative analysis of short- and long-term outcomes.

Abstract

Middle-segment preserving pancreatectomy (MSPP) serves as an alternative to total pancreatectomy (TP) for preserving the pancreatic body in multifocal pancreatic neoplasms. Despite the potential benefits of TP, the detailed short- and long-term prognoses remain unclear. We evaluated the feasibility of MSPP by comparing the perioperative outcomes and postoperative endocrine and exocrine functions with those of TP. The study included 10 TP and 7 MSPP patients. Patients with pancreatic ductal adenocarcinoma and invasive intraductal papillary mucinous carcinoma were excluded. MSPP was associated with a high incidence (57.1%) of postoperative pancreatic fistula (POPF); however, there were no cases of post-pancreatectomy hemorrhage or postoperative mortality in any group. The postoperative hospital stay and readmission rates were comparable between the groups. At 1year postoperatively, MSPP reduced the risk of new-onset insulin-dependent diabetes mellitus, maintained good glycemic control with minimal hypoglycemic events, and preserved skeletal muscle, subcutaneous fat, and visceral fat. One patient in the MSPP group with a neuroendocrine tumor had postoperative recurrence in the para-aortic lymph node. Despite the high POPF rate and oncologic limitations, MSPP showed superior long-term outcomes in glycemic control and preservation of body composition. MSPP may be an acceptable treatment option for selected patients.