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Effect of prolonged treatment with compression stockings to prevent post-thrombotic sequelae: a randomized controlled
Markus Aschwanden1, Christina Jeanneret, Michael T Koller
1Department of Angiology, University Hospital Basel, Basel, Switzerland.
Insights
Prolonged compression therapy after deep vein thrombosis may prevent skin changes and reduce symptoms. Further research is needed to determine its effectiveness in preventing advanced disease states like venous ulcerations.
Area of Science:
- Vascular Medicine
- Thrombosis Research
- Dermatology
Background:
- Deep vein thrombosis (DVT) is a significant vascular condition.
- Post-thrombotic syndrome (PTS) is a common complication after DVT.
- The efficacy of compression stockings in preventing PTS is debated.
Purpose of the Study:
- To assess the effect of prolonged compression therapy after 6 months of standard treatment for acute proximal deep vein thrombosis.
- To evaluate the prevention of post-thrombotic skin changes and symptoms.
Main Methods:
- Randomized controlled trial involving 169 patients with proximal DVT.
- Patients received 6 months of standard treatment, then allocated to compression stockings or no compression.
- Primary endpoint: emerging skin changes (CEAP C4-C6); Secondary endpoint: PTS symptoms.
- Intention-to-treat analysis was performed.
Main Results:
- The primary endpoint occurred in 13.1% of the treatment group vs. 20.0% in the control group (HR, 0.60; 95% CI, 0.28-1.28; P = .19).
- Significant symptom relief favoring compression was observed during the first year.
- A notable sex-specific difference was found, with women benefiting more than men.
Conclusions:
- Prolonged compression therapy shows potential in reducing symptoms and preventing skin changes after DVT.
- The ability of compression therapy to prevent advanced PTS, including ulcerations, requires further investigation.
- Findings suggest a potential benefit, particularly for women, in managing DVT sequelae.
Objective:
Compression stockings are widely applied after acute proximal deep vein thrombosis, but their efficacy in preventing the post-thrombotic syndrome remains controversial. This study assessed the effect of prolonged compression therapy after a standard treatment of 6 months after acute deep vein thrombosis.
Methods:
Of 900 patients screened, we randomly allocated 169 patients with a first or recurrent proximal deep vein thrombosis after receiving 6 months of standard treatment to wear compression stockings or not. Primary efficacy analysis was performed on the end point of emerging skin changes (C4-C6 according to the CEAP classification). Secondary analysis was done on symptoms associated with post-thrombotic syndrome. All analyses were done according to the intention-to-treat principle.
Results:
The primary end point occurred in 11 patients (13.1%) in the treatment group compared with 17 (20.0%) in the control group (hazard ratio [HR], 0.60; 95% confidence interval [CI], 0.28-1.28; P = .19). Mean follow-up was 3.2 years and 2.9 years, respectively. Five additional patients in the control group required compression therapy owing to post-thrombotic signs and symptoms not included in the primary end point. No venous ulceration was observed in either group. Within subgroup analyses of the primary end point, we observed a large sex-specific difference between women (HR, 0.11; 95% CI, 0.02-0.91) and men (HR, 1.07; 95% CI, 0.42-2.73). Symptom relief was significant in favor of compression treatment during the first year but not thereafter.
Conclusion:
Prolonged compression therapy after proximal deep vein thrombosis significantly reduces symptoms and may prevent post-thrombotic skin changes. Whether these findings translate to the prevention of advanced disease states with ulcerations remains unclear.
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