Key result
Anticoagulation for isolated distal DVT cuts proximal extension ~71% and reduces recurrence vs no anticoagulation.
Why the study?
Does anticoagulation reduce recurrent DVT, proximal extension, or PE in patients with isolated distal DVT compared to no anticoagulation?
Population
2,918 patients with isolated distal deep vein thrombosis from 14 studies
Comparison
Anticoagulation vs No anticoagulation
Design
Meta-analysis
Authors
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Supports anticoagulation for isolated distal DVT to limit progression; confirms benefit across pooled trials and may guide practice.
Meta-Analysis (n=2,918)
Does anticoagulation reduce recurrent DVT, proximal extension, or PE in patients with isolated distal DVT compared to no anticoagulation?
Odds Ratio: 0.29 (95% CI 0.13–0.67)
p-value: p=<0.004
In patients with isolated distal DVT, anticoagulation reduces the risk of proximal extension and recurrent DVT without significantly increasing major bleeding, and longer duration (≥8 weeks) further reduces proximal extension.
Ariyarajah et al. (2017) conducted a meta-analysis in Isolated distal deep vein thrombosis (DVT) (n=2,918). Anticoagulation vs. No anticoagulation was evaluated on Proximal extension (OR 0.29, 95% CI 0.13-0.67, p=<0.004). Compared with no anticoagulation, anticoagulation for isolated distal DVT significantly reduced proximal extension (OR 0.29; 95% CI 0.13-0.67; p<0.004) and recurrent DVT.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: