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Hanna-Sawires RG, Groen JV, Hamming A, et al. Incidence, timing and risk factors of venous thromboembolic events in patients with pancreatic cancer. Thromb Res. 2021;207:134-139doi: 10.1016/j.thromres.2021.08.002.
Hanna-Sawires, R. G., Groen, J. V., Hamming, A., Tollenaar, R. A. E. M., Mesker, W. E., Luelmo, S. A. C., Vahrmeijer, A. L., Bonsing, B. A., Versteeg, H. H., Klok, F. A., & Mieog, J. S. D. (2021). Incidence, timing and risk factors of venous thromboembolic events in patients with pancreatic cancer. Thrombosis research, 207134-139. https://doi.org/10.1016/j.thromres.2021.08.002
Hanna-Sawires, Randa G, et al. "Incidence, timing and risk factors of venous thromboembolic events in patients with pancreatic cancer." Thrombosis research vol. 207 (2021): 134-139. doi: https://doi.org/10.1016/j.thromres.2021.08.002
Hanna-Sawires RG, Groen JV, Hamming A, Tollenaar RAEM, Mesker WE, Luelmo SAC, Vahrmeijer AL, Bonsing BA, Versteeg HH, Klok FA, Mieog JSD. Incidence, timing and risk factors of venous thromboembolic events in patients with pancreatic cancer. Thromb Res. 2021 Aug 08;207:134-139. doi: 10.1016/j.thromres.2021.08.002. Epub 2021 Aug 08. PMID: 34628229.
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Thromb Res. 2021 Aug 08;207:134-139. doi: 10.1016/j.thromres.2021.08.002. Epub 2021 Aug 08.

Incidence, timing and risk factors of venous thromboembolic events in patients with pancreatic cancer.

Thrombosis research

Randa G Hanna-Sawires, Jesse V Groen, Alexander Hamming, Rob A E M Tollenaar, Wilma E Mesker, Saskia A C Luelmo, Alexander L Vahrmeijer, Bert A Bonsing, Henri H Versteeg, F A Klok, J Sven D Mieog

Affiliations

  1. Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands. Electronic address: [email protected].
  2. Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands.
  3. Department of Medical Oncology, Leiden University Medical Centre, Leiden, the Netherlands.
  4. Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Centre, Leiden, the Netherlands.
  5. Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands. Electronic address: [email protected].

PMID: 34628229 DOI: 10.1016/j.thromres.2021.08.002

Abstract

INTRODUCTION: Pancreatic cancer is associated with a high risk of venous thromboembolism (VTE). However, comprehensive data on incidence, timing and relevant determinants of VTE in this particular population are scarce. Current study assesses incidence, timing and predictors of VTE in pancreatic cancer through different phases of disease.

METHODS: All pancreatic cancer patients treated in our tertiary referral center between 2013 through 2017 were studied. Occurrence of VTE was evaluated from diagnosis through end of follow-up or death. Relevant determinants of VTE were identified in logistic regression models. Hazard ratios were calculated to evaluate impact of VTE on overall survival.

RESULTS: In total, 361 patients were followed for a median period of 43 months; 64 were diagnosed with VTE (18%). Most were tumor related thrombosis (59%), incidental (75%) and occurred after anti-cancer treatment had been stopped (80%), only 1.6% occurred during remission phase. Stage IV pancreatic cancer was a predictor for VTE (hazard ratio (HR) 2.46, 95% confidence interval (CI) 0.9-6.8). Biliary drainage (HR 0.52, 95%CI 0.28-0.98) and tumor resection (HR 0.45, 95%CI 0.45-1.83) were protective factors. VTE was not associated with worse survival (HR 1.3; 95% CI 0.97-1.74).

CONCLUSIONS: VTE in pancreatic cancer is disease-stage dependent, with 80% occurring in advanced phases of disease when patients no longer receive active treatment. We speculate that this is the main reason for the absence of a survival effect of VTE in our cohort. These practice-based findings should be taken into account when considering wide-spread introduction of primary thromboprophylaxis in patients with pancreatic cancer.

Copyright © 2021 The Authors. Published by Elsevier Ltd.. All rights reserved.

Keywords: Bleeding; Pancreatic cancer; Survival; Venous thromboembolism

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