Compression therapy for prevention of post-thrombotic syndrome

Area of Science:

• Vascular Medicine
• Clinical Trials
• Evidence-Based Medicine

Background:

• Post-thrombotic syndrome (PTS) is a chronic complication following deep vein thrombosis (DVT), affecting up to one-third of patients.
• Current prevention strategies include leg elevation and compression therapy, though clinical guidelines vary on compression's utility.
• This review is an update of previous assessments on compression therapy for DVT management.

Purpose of the Study:

• To evaluate the effectiveness of compression therapy in preventing PTS after DVT.
• To determine the complication rates associated with compression therapy in DVT patients.

Main Methods:

• Included randomized controlled trials (RCTs) and controlled clinical trials (CCTs) of compression therapy for DVT.
• Primary outcome was the incidence of PTS; secondary outcomes included DVT recurrence and adverse events.
• Searches were conducted in the Cochrane Vascular Specialised Register and CENTRAL, with no date or language restrictions.

Main Results:

• Ten RCTs with 2361 participants were identified; overall methodological quality was low.
• Elastic compression stockings showed a potential reduction in PTS incidence (RR 0.62, 95% CI 0.38 to 1.01), but not severe PTS or DVT recurrence.
• No significant difference in PTS incidence was found when compression was initiated in the acute phase versus no compression; two-year use might be superior to one-year use.

Conclusions:

• Low-quality evidence suggests elastic compression stockings may reduce PTS occurrence post-DVT.
• Evidence quality was downgraded due to heterogeneity and unclear blinding; no serious adverse effects were reported.
• Large, high-quality RCTs are needed to confirm these findings and address heterogeneity.