Venous resection for adenocarcinoma of head of pancreas: Does extent of portal vein resection affect outcomes?

Abstract

Background: Venous resection with pancreaticoduodenectomy (PD) increases resectability rates in patients with adenocarcinoma of head of pancreas. The effect of extent of portal vein resection on perioperative morbidity and mortality is less clear. This retrospective cohort study compares results of PD with and without venous resection and explores the influence of extent of vein resection on perioperative morbidity and mortality.

Methods: Total 96 patients underwent standard PD (PD) and 20 patients had en bloc venous resections (VR). VR group was divided into segmental (VR-S) (6/20 patients) and tangential (VR-T) (14/20 patients) groups based on segmental or tangential type of venous resections. The groups were compared for morbidity, mortality and survival.

Results: PD and VR groups had comparable perioperative morbidity (p = 0.140) and mortality (p = 0.358) with a significantly higher operative time in VR (p < 0.001). Perioperative morbidity and mortality were similar in VR-S and VR-T groups (p = 0.690 and p = 0.157 respectively). Operative time and estimated blood loss were significantly higher in VR-S group over VR-T (p = 0.019 and p = 0.002 respectively). Median survival was similar for PD and VR (15 and 15.5 moths respectively; p = 0.278) and VR-S and VR-T groups (17 and 12.5 months respectively; p = 0.550). Expected blood loss and operative time were found to be independent predictors of morbidity.

Conclusions: Venous resection with PD is associated with morbidity, mortality and overall survival comparable to that after standard resection. The extent of venous resection does not seem to affect perioperative morbidity and mortality.

Keywords: Pancreatic cancer; Pancreatic resection; Portal vein resection; Vascular reconstruction; Vascular resection.