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  • Title: Long-term effects of superficial femoral vein ligation: thirteen-year follow-up.
    Author: Masuda EM, Kistner RL, Ferris EB.
    Journal: J Vasc Surg; 1992 Nov; 16(5):741-9. PubMed ID: 1433662.
    Abstract:
    This study examines the late clinical, hemodynamic, and anatomic results of superficial femoral vein ligation performed in 35 extremities that were followed an average of 13 1/2 years (range, 5 to 22 years). Indications for interruption were to prevent recurrent embolization from distal deep venous thrombosis (14 cases), to prevent emboli in patients with contraindication to anticoagulants (eight cases), to prevent distal reflux in selected patients undergoing iliofemoral thrombectomy (11 cases), and to control reflux in failed venous reconstruction (two cases). Ligation was effective in the prevention of pulmonary emboli as indicated by no significant clinical events and 15 negative postligation ventilation-perfusion scans. Long-term clinical follow-up showed normal (class 0) or near-normal (class 1) extremities in 83%. Fourteen percent developed mild to moderate symptoms of pain or swelling but without ulceration (class 2), and only one case (3%) had ulcerative sequelae (class 3). The only two findings that correlated with worse clinical outcome were the presence of an incompetent profunda femoris or an obstructed greater saphenous vein. Profunda femoris reflux was found in 60% (3/5) of patients with class 2 or 3 sequelae, which was significantly higher than the 14% (3/22) found in those patients with class 0 or 1 results (p < 0.05). Obstruction of the greater saphenous vein was found in 50% of those patients with class 2 or 3 results as opposed to 9% with class 0 or 1 results (p = 0.05). A large collateral vessel between the profunda femoris and the distal superficial femoral or popliteal vein was associated with poor long-term results.(ABSTRACT TRUNCATED AT 250 WORDS)
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