Semin Thromb Hemost 2016; 42(06): 642-649
DOI: 10.1055/s-0036-1584131
Review Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Clinical Outcomes of Venous Thromboembolism in Patients with and without Cancer: The SWIss Venous ThromboEmbolism Registry (SWIVTER)

David Spirk
1   Institute of Pharmacology, University Bern, Bern, Switzerland
,
Drahomir Aujesky
2   Division of General Internal Medicine, Bern University Hospital, Bern, Switzerland
,
Anna K. Stuck
3   Division of Vascular Medicine, Swiss Cardiovascular Center, Bern University Hospital, Bern, Switzerland
,
Jürg H. Beer
4   Department of Internal Medicine, Cantonal Hospital Baden, Baden, Switzerland
,
Lucia Mazzolai
5   Clinic of Angiology, University Hospital Lausanne, Lausanne, Switzerland
,
Thomas Baldi
6   Department of Internal Medicine, University Hospital Basel, Basel, Switzerland
,
Martin Banyai
7   Department of Internal Medicine, Cantonal Hospital Lucerne, Lucerne, Switzerland
,
Daniel Hayoz
8   Department of Internal Medicine, Cantonal Hospital Fribourg, Fribourg, Switzerland
,
Thomas Kaeslin
9   Department of Internal Medicine, Cantonal Hospital Obwalden, Sarnen, Switzerland
,
Wolfgang Korte
10   Department of Internal Medicine, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
,
Robert Escher
11   Department of Internal Medicine, Regional Hospital Burgdorf, Burgdorf, Switzerland
,
Marc Husmann
12   Clinic of Angiology, University Hospital Zurich, Zurich, Switzerland
,
Beat Frauchiger
13   Department of Internal Medicine, Cantonal Hospital Frauenfeld, Frauenfeld, Switzerland
,
Iris Baumgartner
3   Division of Vascular Medicine, Swiss Cardiovascular Center, Bern University Hospital, Bern, Switzerland
,
Nils Kucher
3   Division of Vascular Medicine, Swiss Cardiovascular Center, Bern University Hospital, Bern, Switzerland
› Author Affiliations
Further Information

Publication History

Publication Date:
06 June 2016 (online)

Abstract

Background The association between cancer and venous thromboembolism (VTE) in producing adverse clinical outcomes requires further investigation.

Methods In the Swiss Venous ThromboEmbolism Registry (SWIVTER), we compared adverse clinical outcomes between 493 patients with cancer-associated VTE and 1,569 VTE patients without cancer, and identified independent predictors of 90-day mortality.

Results Among cancer patients, 351 (71%) had active disease at the time of VTE diagnosis and 232 (47%) had metastatic disease. Cancer patients more frequently had asymptomatic VTE (13 vs. 4%; p < 0.001), iliofemoral deep vein thrombosis (42 vs. 32%; p = 0.017), and upper extremity deep vein thrombosis (16 vs. 7%; p < 0.001). Cancer was associated with an increased risk of cumulative 90-day mortality (13.0 vs. 2.2%; hazard ratio [HR], 6.27; 95% confidence interval [CI], 4.13–9.50; p < 0.001), recurrent VTE (4.7 vs. 2.3%; HR, 2.05; 95% CI, 1.21–3.45; p = 0.007), and bleeding requiring medical attention (5.7 vs. 3.3%; HR, 1.80; 95% CI, 1.13–2.86; p = 0.013). Among cancer patients, the strongest factor associated with mortality was metastatic disease (HR, 4.86; 95% CI, 2.68–8.81; p < 0.001), whereas it was pulmonary embolism among noncancer patients (HR, 4.96; 95% CI, 1.50–16.45; p = 0.009). Symptomatic as compared with asymptomatic VTE predicted neither mortality (12.6 vs. 15.9%; HR, 0.76; 95% CI, 0.39–1.49; p = 0.42) nor recurrent VTE (4.7 vs. 4.8%; HR, 0.98; 95% CI, 0.29–3.31; p = 0.98) in cancer patients.

Conclusion In SWIVTER, early mortality of cancer-associated VTE was mainly driven by the extent of cancer disease and not by VTE symptoms or severity.

Financial Support

This study was funded by the International Society on Thrombosis and Haemostasis (ISTH) 2007 Presidential Fund, Sanofi-Aventis (Suisse) SA, Vernier, Bayer (Schweiz) AG, Zurich, Pfizer AG, Zurich, and Bristol-Myers Squibb AG, Cham, Switzerland.


 
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