Should an adult with a history of deep‑vein thrombosis (DVT) wear graduated compression stockings?

Compression Stockings After DVT: Not Routinely Recommended

Based on the most recent high-quality guideline evidence, you should NOT routinely wear compression stockings after DVT, though they may help selected patients with persistent leg swelling or pain. 1

Primary Recommendation

The 2020 American Society of Hematology guidelines explicitly recommend against routine use of compression stockings for patients with a history of DVT, whether they have increased risk for post-thrombotic syndrome (PTS) or not 1. This represents a significant shift from older practices and is based on very low certainty evidence that shows negligible mortality benefit (RR 0.99) and only nonsignificant reductions in pulmonary embolism and PTS when all trials are pooled.

Key Evidence Behind This Recommendation

The guideline panel's decision was heavily influenced by:

• No meaningful effect on mortality (moderate-certainty evidence) 1
• Nonsignificant reduction in PTS risk (RR 0.62; 95% CI 0.38-1.01), meaning the confidence interval crosses the line of no effect 1
• High heterogeneity between studies, with the large SOX trial (n=806) showing no benefit when comparing active compression stockings (30-40 mm Hg) versus placebo stockings 1

The 2014 American Heart Association statement similarly found that two small randomized trials showed no benefit from 30-40 mm Hg graduated compression stockings, with one study showing 61.1% treatment failure with active stockings versus 58.8% with placebo (P=NS) 2.

When Compression Stockings MAY Be Considered

Despite the recommendation against routine use, stockings may help selected patients with:

• Persistent leg edema after DVT
• Ongoing pain or discomfort in the affected limb
• Symptomatic relief on an individual basis 1

The ASH guideline explicitly notes: "Although the majority of patients may not benefit from the use of stockings to reduce the risk of PTS, stockings may help to reduce edema and pain associated with DVT in selected patients" 1.

Important Caveats

The evidence conflict you should know about: Older research from 2006 showed that compression stockings reduced PTS incidence from 54% to 25.2% (NNT=4) 3, but this was based on smaller trials with methodological limitations. The more recent and larger SOX trial contradicted these findings, leading to the current guideline reversal.

Practical limitations of compression stockings include:

• Difficulty donning the garments
• Patient discomfort and non-adherence
• Skin allergic reactions
• Cost considerations 2

Clinical Algorithm

For a patient with history of DVT:

1. Do NOT prescribe compression stockings routinely for PTS prevention 1
2. Consider a trial only if patient has:
   • Persistent leg swelling despite adequate anticoagulation
   • Bothersome leg pain or heaviness
   • Patient preference after discussing limited evidence
3. If prescribed, use 30-40 mm Hg knee-high stockings 2, 1
4. Monitor for benefit at 3 months; discontinue if no symptomatic improvement

The risk of harm from compression stockings is low, so a therapeutic trial in symptomatic patients remains reasonable despite lack of proven benefit for PTS prevention 2.