Total mesopancreas excision for periampullary malignancy: a single-center propensity score-matched comparison of

Giuseppe Quero1,2,3, Claudio Fiorillo4,5, Roberta Menghi1,2

  • 1Digestive Surgery Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.

Abstract

Insights

Mesopancreas (MP) excision during pancreaticoduodenectomy (PD) improves long-term outcomes by reducing local recurrence and improving survival. This surgical approach is associated with better disease-free survival (DFS) and overall survival (OS).

Area of Science:

  • Surgical Oncology
  • Gastroenterology
  • Oncology

Background:

  • Pancreaticoduodenectomy (PD) is a standard procedure for pancreatic head tumors.
  • The prognostic significance of mesopancreas (MP) involvement remains under investigation.
  • Limited comparative data exist on the long-term impact of MP excision during PD.

Purpose of the Study:

  • To compare the long-term outcomes of standard PD (sPD) versus PD with MP excision (PD-MPe).
  • To evaluate the prognostic role of mesopancreas status in patients undergoing PD.

Main Methods:

  • A retrospective comparison of 60 sPD patients and 60 matched PD-MPe patients.
  • Data analyzed included intraoperative and postoperative parameters, histopathological findings, and long-term survival outcomes.
  • Multivariate analysis was performed to identify independent prognostic factors.

Main Results:

  • PD-MPe demonstrated a significantly lower rate of MP resection margin positivity (5% vs. 16.7%, p=0.04).
  • Local tumor recurrence was significantly lower in the PD-MPe group (26.8% vs. 55.5%, p=0.002), leading to improved disease-free survival (DFS).
  • MP margin positivity was an independent negative prognostic factor for both overall survival (OS) and DFS.

Conclusions:

  • PD-MPe offers significant clinical advantages over sPD, including improved MP resection margin status and reduced local recurrence.
  • The enhanced margin status achieved with PD-MPe translates to better long-term DFS and OS.
  • Mesopancreas excision should be considered in PD to improve patient outcomes.