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Sökning: WFRF:(Schulman S)

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  • Schulman, S., et al. (författare)
  • Post-thrombotic syndrome, recurrence, and death 10 years after the first episode of venous thromboembolism treated with warfarin for 6 weeks or 6 months
  • 2006
  • Ingår i: Journal of Thrombosis and Haemostasis. - : Elsevier BV. - 1538-7933 .- 1538-7836. ; 4:4, s. 734-742
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The influence of the duration of anticoagulant therapy after venous thromboembolism (VTE) on the long-term morbidity and mortality is unclear. Aim: To investigate the long-term sequelae of VTE in patients randomized to different duration of secondary prophylaxis. Methods: In a multicenter trial comparing secondary prophylaxis with vitamin K antagonists for 6 weeks or 6 months, we extended the originally planned 2 years follow-up to 10 years. The patients had annual visits and at the last visit clinical assessment of the post-thrombotic syndrome (PTS) was performed. Recurrent thromboembolism was adjudicated by a radiologist, blinded to treatment allocation. Causes of death were obtained from the Swedish Death Registry. Results: Of the 897 patients randomized, 545 could be evaluated at the 10 years follow-up. The probability of developing severe PTS was 6% and any sign of PTS was seen in 56.3% of the evaluated patients. In multivariate analysis, old age and signs of impaired circulation at discharge from the hospital were independent risk factors at baseline for development of PTS after 10 years. Recurrent thromboembolism occurred in 29.1% of the patients with a higher rate among males, older patients, those with permanent gering risk factor - especially with venous insufficiency at baseline - signs of impaired venous circulation at discharge, proximal deep vein thrombosis, or pulmonary embolism. Death occurred in 28.5%, which was a higher mortality than expected with a standardized incidence ratio (SIR) of 1.43 (95% CI 1.28-1.58), mainly because of a higher mortality than expected from cancer (SIR 1.83, 95% CI 1.44-2.23) or from myocardial infarction or stroke (SIR 1.28, 95% CI 1.00-1.56).The duration of anticoagulation did not have a statistically significant effect on any of the long-term outcomes. Conclusion: The morbidity and mortality during 10 years after the first episode of VTE is high and not reduced by extension of secondary prophylaxis from 6 weeks to 6 months. A strategy to reduce recurrence of VTE as well as mortality from arterial disease is needed. © 2006 International Society on Thrombosis and Haemostasis.
  • Wik, H. S., et al. (författare)
  • Post-thrombotic syndrome in patients with venous thromboembolism treated with dabigatran or warfarin: A long-term cross-sectional follow-up of RE-COVER study patients
  • 2021
  • Ingår i: Journal of Thrombosis and Haemostasis. - : Elsevier BV. - 1538-7933 .- 1538-7836. ; 19:10, s. 2495-2503
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Studies suggest that the direct factor Xa inhibitor rivaroxaban compared to warfarin reduces the risk of post-thrombotic syndrome (PTS) after deep vein thrombosis (DVT), but this has not been evaluated for oral direct thrombin inhibitors. Objectives To compare the long-term prevalence of PTS, recurrent venous thromboembolism (VTE), and health-related quality of life (HRQoL) in patients with acute DVT and/or pulmonary embolism (PE), randomized to treatment with dabigatran or warfarin in the phase III RE-COVER studies. Methods We conducted a cross-sectional follow-up study of patients randomized in Canada, Norway, and Sweden. PTS was assessed by the patient-reported Villalta scale (PRV) and HRQoL by EQ-5D and VEINES-QOL/Sym. Results We included 349 patients between December 2015 and November 2018; 166 were treated with dabigatran and 183 with warfarin. DVT (+/- PE) was index event in 255 patients, whereas 94 patients had PE only. Mean time from index event was 8.7 (standard deviation 1.4) years. PTS was diagnosed in 63% of patients with DVT and in 46% of patients with PE only, and did not differ between the treatment groups; the crude odds ratio (OR) for PTS in patients treated with dabigatran compared with warfarin was 1.1 (95% confidence interval [CI] 0.6-1.8) after DVT and 1.2 (95% CI 0.5-2.6) after PE only. The prevalence of recurrent VTE was 21% in both treatment groups. HRQoL scores did not differ between groups. Conclusion In this long-term cross-sectional study, the prevalence of PTS, recurrent VTE, and HRQoL were similar in patients treated with dabigatran and warfarin.
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