Potential use of left renal vein graft in pancreaticoduodenectomy combined with long segmental resection of the superior mesenteric-splenic-portal vein confluence

Context: Various techniques for reconstruction after superior mesenteric-splenic-portal vein confluence resection during pancreaticoduodenectomy have been introduced. A certain kind of vascular grafting may be necessary especially when long segmental resection of superior mesenteric-splenic-portal vein confluence is required. Case report: We herein report the cases of two patients who underwent left renal vein grafting in a pancreaticoduodenectomy with combined resection of the long segment of the superior mesenteric-splenic-portal vein confluence for pancreatic head cancer following neoadjuvant concurrent chemoradiation therapy as well as their long-term outcomes with graft patency without deterioration of renal function. Conclusion: Our experience with these two cases indicates that an autologous interposition graft using the left renal vein may be considered a safe and convenient conduit in the case of long segmental resection of the superior mesenteric-splenic-portal vein confluence during a pancreaticoduodenectomy following preoperative neoadjuvant chemoradiation therapy.