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  • Distal splenorenal and Mesocaval Shunting at the time of pancreatectomy.
    Surgery, 2018
    Co-Authors: Mariana I. Chavez, Susan Tsai, Callisia N. Clarke, Mohammed Aldakkak, Michael O. Griffin, Abdul H. Khan, Paul S. Ritch, Beth Erickson, Douglas B. Evans, Kathleen K. Christians
    Abstract:

    Abstract Background When pancreatic neoplasms occlude or encase the superior mesenteric-portal-splenic vein confluence with abutment of the posterior lateral wall of the superior mesenteric artery, a Mesocaval Shunt with or without a distal splenorenal Shunt allows for safe dissection of the porta hepatis and separation of the pancreatic tumor from the superior mesenteric artery. Herein we report long-term results of the largest known series of portosystemic Shunts performed at the time of pancreatectomy. Methods All patients who underwent pancreatic resection with a Mesocaval Shunt or distal splenorenal Shunt were identified from our prospective database. Demographics, perioperative treatment, and outcomes were reviewed. Results A total of 34 patients underwent Mesocaval Shunt or distal splenorenal Shunt, including 25 at the time of pancreatoduodenectomy, 6 during total pancreatectomy, and 3 after prior pancreatectomy. There were 15 Mesocaval Shunts, 16 distal splenorenal Shunts, 2 combined Mesocaval/distal splenorenal Shunts, and 1 distal splenoadrenal vein Shunt. The Mesocaval group included 11 temporary and 6 permanent (3 delayed) Shunts. Median operative time was 9 hours (range 6.5–13), median estimated blood loss was 950 mL (range 200–5,000), and median duration of hospital stay was 11 days (range 7–35). Four patients experienced complications that required intervention (Clavien-Dindo grade ≥III), but there were no 90-day mortalities. For patients with adenocarcinoma, median overall survival was 31 months at a median follow-up of 19 months. All but 1 Shunt (distal splenorenal) were patent at last follow-up. Conclusion Mesenteric venous Shunting facilitates a safe and complete tumor resection in patients who require a complex pancreatectomy, many of whom would otherwise be deemed inoperable.