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- W4313015508 abstract "Introduction: Pancreatic ductal adenocarcinoma can directly invade the peripancreatic lymph nodes; however, the significance of direct lymph node invasion is controversial, and it is currently classified as lymph node metastasis. This study aimed to identify the impact of direct invasion of peripancreatic lymph nodes on survival in patients with pancreatic ductal adenocarcinoma. Methods: A total of 411 patients with resectable/borderline resectable pancreatic ductal adenocarcinoma who underwent pancreatic resection at two high-volume centers from 2006 to 2016 were evaluated retrospectively. Results: Sixty (14.6%) patients had direct invasion of the peripancreatic lymph nodes without isolated lymph node metastasis (N-direct group), 189 (46.0%) had isolated lymph node metastasis (N-met group), and 162 (39.4%) had neither direct invasion nor isolated metastasis (N0 group). There was no significant difference in median overall survival between the N-direct group (35.0 months) and the N0 group (45.6 month) (p=0.409), but survival was significantly longer in the N-direct compared with the N-met group (25.0 months) (p=0.003). Similarly, median disease-free survival was similar in the N-direct (21.0 months) and N0 groups (22.7 months) (p=0.151), but was significantly longer in the N-direct compared with the N-met group (14.0 months) (p<0.001). Multivariate analysis identified resectability, adjuvant chemotherapy, and isolated lymph node metastasis as independent predictors of overall survival. However, direct lymph node invasion was not a predictor of survival. Conclusion: Direct invasion of the peripancreatic lymph nodes had no effect on survival in patients undergoing pancreatic resection for pancreatic ductal adenocarcinoma, and should therefore not be classified as lymph node metastasis." @default.
- W4313015508 created "2023-01-05" @default.
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- W4313015508 date "2022-01-01" @default.
- W4313015508 modified "2023-09-27" @default.
- W4313015508 title "Does Direct Invasion of Peripancreatic Lymph Nodes Impact Survival in Patients with Pancreatic Ductal Adenocarcinoma? a Retrospective Dual-Center Study" @default.
- W4313015508 doi "https://doi.org/10.1016/j.hpb.2022.05.601" @default.
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