A Nationwide Population‐Based Study on the Survival of Patients with Pancreatic Neuroendocrine Tumors in The Netherlands

Abstract Background Large population‐based studies give insight into the prognosis and treatment outcomes of patients with pancreatic neuroendocrine tumors (pNETs). Therefore, we provide an overview of the treatment and related survival of pNET in the Netherlands. Methods Patients diagnosed with pNET between 2008 and 2013 from the Netherlands Cancer Registry were included. Patient, tumors and treatment characteristics were reported. Survival analyses with log‐rank testing were performed to compare survival. Results In total, 611 patients were included. Median follow‐up was 25.7 months, and all... Mehr ...

Verfasser: Genc, C. G.
Klümpen, H. J.
van Oijen, M. G. H.
van Eijck, C. H. J.
Nieveen van Dijkum, E. J. M.
Dokumenttyp: Artikel
Erscheinungsdatum: 2017
Reihe/Periodikum: World Journal of Surgery ; volume 42, issue 2, page 490-497 ; ISSN 0364-2313 1432-2323
Verlag/Hrsg.: Wiley
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-27629454
Datenquelle: BASE; Originalkatalog
Powered By: BASE
Link(s) : http://dx.doi.org/10.1007/s00268-017-4278-y

Abstract Background Large population‐based studies give insight into the prognosis and treatment outcomes of patients with pancreatic neuroendocrine tumors (pNETs). Therefore, we provide an overview of the treatment and related survival of pNET in the Netherlands. Methods Patients diagnosed with pNET between 2008 and 2013 from the Netherlands Cancer Registry were included. Patient, tumors and treatment characteristics were reported. Survival analyses with log‐rank testing were performed to compare survival. Results In total, 611 patients were included. Median follow‐up was 25.7 months, and all‐cause mortality was 42%. Higher tumor grade and TNM stage were significantly associated with worse survival in both the overall and metastasized population. The effect of distant metastases on survival was more significant in lower tumor stages (T1–3 p < 0.05, T4 p = 0.074). Resection of the primary tumor was performed in 255 (42%) patients. Patients who underwent surgery had the highest 5‐year survival (86%) compared to PRRT (33%), chemotherapy (21%), targeted therapy and somatostatin analogs (24%) (all p < 0.001). Patients with T1M0 tumors ( n = 115) showed favorable survival after surgical resection ( N = 95) compared to no therapy ( N = 20, p = 0.008). Resection also improved survival significantly in patients with metastases compared to other treatments (all p > 0.05). Without surgery, PRRT showed the best survival curves in patients with distant metastases. Grade 3 tumors and surgical resection were independently associated with survival (HR 7.23 and 0.12, respectively). Conclusion Surgical resection shows favorable outcome for all pNET tumors, including indolent tumors and tumors with distant metastases. Prospective trials should be initiated to confirm these results.