Elevated risk of venous but not arterial thrombosis in Waldenstrom macroglobulinemia/lymphoplasmacytic lymphoma

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Abstract

BackgroundMany malignancies, including multiple myeloma and its precursor, monoclonal gammopathy of unknown significant, are associated with an elevated risk of thromboembolism. There is limited information on the risk of thrombosis in patients with Waldenstrom macroglobulinemia (WM) and lymphoplasmacytic lymphoma (LPL). ObjectivesTo assess the risk of venous and arterial thrombosis in WM/LPL patients in a large population-based cohort study in Sweden. Patients/methodsA total of 2190 patients with WM/LPL and 8086 matched controls were identified through Swedish registers between 1987 and 2005. Information on occurrence of venous and arterial thrombosis after the diagnosis of WM/LPL was obtained through the centralized Swedish Patient Register, with follow-up to 2006. Cox regression models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). ResultsPatients with WM/LPL had a significantly increased risk of venous thrombosis and the highest risk was observed during the first year following diagnosis (HR=4.0, 95% CI 2.5-6.4). The risk was significantly elevated 5 (HR=2.3, 95% CI 1.7-3.0) and 10years after diagnosis (HR=2.0, 95% CI 1.6-2.5). There was no increased risk of arterial thrombosis during any period of follow-up time (10-year HR=1.0, 95% CI 0.9-1.1). ConclusionsVenous thrombosis is a significant cause of morbidity in patients with WM/LPL. The potential role of thromboprophylaxis in WM/LPL, especially during the first year after diagnosis and in patients treated with thrombogenic agents, needs to be assessed to further improve outcome in WM/LPL patients.

Detaljer

Författare
  • M. Hultcrantz
  • R. M. Pfeiffer
  • M. Bjorkholm
  • L. R. Goldin
  • Ingemar Turesson
  • S. Schulman
  • O. Landgren
  • S. Y. Kristinsson
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Kardiologi

Nyckelord

Originalspråkengelska
Sidor (från-till)1816-1821
TidskriftJournal of Thrombosis and Haemostasis
Volym12
Utgivningsnummer11
StatusPublished - 2014
PublikationskategoriForskning
Peer review utfördJa