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  • Title: Prospective determination of candidates for thrombolysis in patients with acute proximal deep vein thrombosis.
    Author: Klein SJ, Gasparis AP, Virvilis D, Ferretti JA, Labropoulos N.
    Journal: J Vasc Surg; 2010 Apr; 51(4):908-12. PubMed ID: 20347687.
    Abstract:
    PURPOSE: To prospectively determine the distribution, extent, and age of venous thrombosis in patients presenting with acute signs and symptoms of venous thromboembolism and identify candidates for thrombolysis. MATERIALS AND METHODS: Five hundred seventy-six consecutive patients (281 male, 295 female; mean age 58) referred for lower extremity deep vein thrombosis (DVT) assessment between November 2007 and April 2008 were included in the study. Documented cases of DVT were categorized by age (acute, chronic, and acute on chronic), anatomic location, and extent. Patients with iliofemoral and femoropopliteal DVT were evaluated for thrombolysis using standard criteria. RESULTS: DVT was found in 19% of patients (112/576). Of these, 31 patients (27.7%, 31/112) had isolated calf DVT, 61 patients (54.5%, 61/112) had proximal vein thrombosis extending into the femoropopliteal venous segments, and 20 patients (17.9%, 20/112) presented with iliofemoral DVT. Using standard criteria, 12 patients were selected as potential candidates for pharmacomechanical thrombolysis (PhMT). This equated to an incidence of 2% (12/576) in the population studied, 11% of patients (12/112) with DVT, 26.1% of patients (12/46) presenting with acute proximal DVT, and 20% of patients (4/20) with iliofemoral DVT. CONCLUSION: The incidence of potential candidates for thrombolysis is low. These data should be considered when recruiting centers to participate in ongoing clinical trials assessing the efficacy of these techniques.
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