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  • Title: Factors influencing outcome in patients undergoing portal vein resection for adenocarcinoma of the pancreas.
    Author: Banz VM, Croagh D, Coldham C, Tanière P, Buckels J, Isaac J, Mayer D, Muiesan P, Bramhall S, Mirza DF.
    Journal: Eur J Surg Oncol; 2012 Jan; 38(1):72-9. PubMed ID: 22054617.
    Abstract:
    BACKGROUND: Survival rates after surgery and adjuvant chemotherapy for pancreatic ductal adenocarcinoma (PDA) remain low. Selected patients with portal/superior mesenteric vein (PV) involvement undergo PV resection at pancreaticoduodenectomy (PD). This study analyses outcomes for PD with/without PV resection in patients with PDA. METHODS: A retrospective analysis of prospectively collected data on patients requiring PD for histologically proven adenocarcinoma between 1/1997 and 9/2009 identified 326 patients with PDA, with 51 requiring PD with PV resection. Patients were analyzed in two groups: PD + PV resection vs. PD alone. Multivariate analysis was used to identify predictive variables influencing survival and the Kaplan-Meier method to estimate patient survival. RESULTS: Mean age for patients with PV resection was 66.4 (range 46-80) years, 47% were male. Both groups had similar patient demographics, perioperative and tumor characteristics. Postoperative morbidity was similar for patients with and without PV resection (27.5 vs. 28.4%). 30-day mortality was significantly higher in patients with PV resection (13.7%) vs. PD alone (5.1%). Overall survival however was similar in both groups (median PD alone 14.8 months vs. 14.5 months PD + PV). Multivariate analysis identified age, tumor grading, stay on the ICU and lack of chemotherapy as independent risk factors for reduced long-term survival. CONCLUSION: In carefully selected patients, PV resection results in similar long-term survival compared to PD alone. In selected patients, PV infiltration may be considered a sign of anatomical proximity of the tumor, rather than only a sign of increased tumor aggressiveness.
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