Thrombophilia screeningFactor V leiden, Prot C/S deficiency
Antithrombin III deficiency
Idiopathic DVT < 50 yearsFamily history of DVTThrombosis in
an unusual siteRecurrent DVT
Recommendation for duration of warfarin
3-6 months first DVT with reversible risk factorsAt least 6
months for first idiopathic DVT12 months to lifelong for recurrent
DVT or first DVT with irreversible risk factorsmalignancy or
thrombophilic state
Diagram 6
Phlegmasia cerulea dolens Venous gangrene
Catheter directed-thrombolysisConsider in: Acute< 10 days
iliofemoral DVT.
Long-term benefit in preventing post-phebitic syndrome is
unknown.
