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The Influence Of Familial Pancreatic Cancer On Postoperative Outcome In Pancreatic Cancer: Relevance To Adjuvant Chemotherapy
Published 2020 · Medicine
Familial pancreatic cancer (FPC) is defined as a family in which at least two first-degree relatives have pancreatic cancer (PC). The prognostic significance of PC in an FPC family after surgery is not fully understood. This was a retrospective study of 427 patients who underwent pancreatectomy for pancreatic ductal adenocarcinoma between January 2008 and December 2016. PC patients who also had at least one first-degree relative with PC were defined as FPC patients. The associations between recurrence and clinicopathological characteristics were analyzed for both FPC and non-FPC patients. FPC patients accounted for 31 of the 427 (7.3%) patients. Recurrence occurred in 72.1% of the total cohort and in 87.1% of the 31 FPC patients. Multivariate analysis showed that being an FPC patient was an independent predictor for relapse-free survival (RFS) (hazard ratio [HR] 1.52, P = 0.038). Although univariate analysis revealed that being an FPC patient was significantly associated with poorer overall survival (OS) (P < 0.001), multivariate analysis showed that being an FPC patient was not an independent predictor for OS (P = 0.164). Dichotomization of the 427 patients into those who received (n = 317: 17 FPC and 300 non-FPC patients) and did not receive (n = 110: 14 FPC and 96 non-FPC patients) adjuvant chemotherapy revealed that being an FPC patient was an independent predictor for RFS (HR 2.50, P < 0.001) and OS (HR 2.30, P = 0.003) only for patients who received adjuvant chemotherapy. This study has shown that being an FPC patient is a significant prognostic indicator for PC patients who undergo resection and receive adjuvant chemotherapy.