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Laparoscopic Pancreaticoduodenectomy Combined With Portal-Superior Mesenteric Vein Resection and Reconstruction: Inferior-Posterior "Superior Mesenteric Artery-First" Approach.

BACKGROUND: Laparoscopic pancreaticoduodenectomy (LPD) with portal-superior mesenteric vein (PV/SMV) resection and reconstruction is increasingly performed. We aimed to introduce a safe and effective surgical approach and share our clinical experience with LPD with PV/SMV resection and reconstruction.

METHODS: We reviewed data for the patients undergoing LPD and open pancreaticoduodenectomy (OPD) combined with PV/SMV resection and reconstruction at the First Hospital of Jilin University between April 2021 and May 2023. The inferior-posterior "superior mesenteric artery-first" approach was used. We compared the preoperative, intraoperative, and postoperative clinicopathological data of the 2 groups to conduct a comprehensive evaluation of LPD with major vascular resection.

RESULTS: A cohort of 37 patients with periampullary and pancreatic tumors underwent pancreaticoduodenectomy (PD) with major vascular resection and reconstruction, consisting of 21 LPDs and 16 OPDs. The LPD group had a longer operation time (322 vs. 235 min, P=0.039), reduced intraoperative bleeding (152 vs. 325 mL, P=0.026), and lower intraoperative blood transfusion rates (19.0% vs. 50.0%, P=0.046) compared with the OPD group. The LPD group had significantly shorter operation times in end-to-end anastomosis (26 vs. 15 min, P=0.001) and artificial grafts vascular reconstruction (44 vs. 22 min, P=0.000) compared with the OPD group. There was no significant difference in the rate of R0 resection (100% vs. 87.5%, P=0.096). The length of hospital stay and ICU stay did not show significant differences between the 2 groups (15 vs. 18 d, P=0.636 and 2.5 vs. 4.5 d, P=0.726, respectively). However, the postoperative hospital stay in the LPD group was notably shorter compared with the OPD group (11 vs. 16 d, P=0.007). Postoperative complication rates, including postoperative pancreatic fistula (POPF) Grade A/B, biliary leakage, and delayed gastric emptying (DGE), were similar between the two groups (38.1% vs. 43.8%, P=0.729). In addition, 1 patient in each group developed thrombosis, with vascular patency improving after anticoagulation treatment.

CONCLUSION: LPD combined with PV/SMV resection and reconstruction can be easily and safely performed using the inferior-posterior "superior mesenteric artery-first" approach in cases of venous invasion. Further studies are required to evaluate the procedure's long-term outcomes.

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