4.5 Article

Allogeneic Vessels in Pancreaticoduodenectomy with Portal Vein Resection: Risk of Portal Vein Thrombosis and Prognosis

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SPRINGER
DOI: 10.1007/s11605-023-05832-4

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Pancreaticoduodenectomy; Allogeneic vessels; Vascular reconstruction; Portal vein thrombosis; Prognosis

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This study retrospectively analyzed patients who underwent PD combined with PVR and found that AV reconstruction is an independent risk factor for PVT. The occurrence of PVT is significantly correlated with tumor recurrence and overall survival in pancreatic cancer patients.
Background Allogeneic vessels (AV) are commonly used in pancreaticoduodenectomy (PD) with portal vein resection (PVR), but the epidemiological characteristics of portal vein thrombosis (PVT) are still unclear.Methods The clinicopathological data of patients who underwent PD combined with PVR in our hospital from January 2011 to October 2022 were retrospectively collected. All patients underwent regular contrast-enhanced CT of the abdomen after surgery to identify PVT or recurrence and metastasis of the tumor.Results A total of 878 patients received PD, of which 213 patients who also underwent PVR were included in the study. Among them are 16 (7.5%) tangential/patch reconstructions, 51 (23.9%) end-to-end anastomosis, and 146 (68.5%) AV reconstructions. The cumulative incidence of PVT in 1 month, 3 months, 6 months, 1 year, 2 years, and 3 years after surgery was 0.9%, 7.3%, 7.3%, 15.9%, 23.4%, and 27.6%, respectively. The results of logistic regression analysis showed that diabetes, operation procedure, and AV reconstruction were independent risk factors for PVT (P < 0.05). In the Cox analysis, PVT was clearly correlated with tumor recurrence (P = 0.038, hazard ratio (HR) = 1.553) and overall survival (P = 0.044, HR = 1.592) of pancreatic cancer patients.Conclusion The prevalence of PVT is high in PD with PVR, particularly in patients undergoing AV reconstructions. The occurrence of PVT has a clear correlation with the patient's long-term prognosis.

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