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  • Title: [Annular constriction of popliteal vein for treating severe venous insufficiency].
    Author: Ma J, Zhang L, Zhang J, Wang W, Xing Z.
    Journal: Zhonghua Wai Ke Za Zhi; 2000 Feb; 38(2):106-8. PubMed ID: 11832001.
    Abstract:
    OBJECTIVE: To study the mechanism and therapeutic effects of annular constriction for severe venous insufficiency of legs. METHODS: Annular constriction of popliteal vein was performed by Gore-Tex vascular graft in 82 patients. Among them, 78 patients had deep venous valve insufficiency of legs (III, IV degree), 2 postphlebitic syndrome, and 2 valve absence of deep vein. Under normal respiration and breath holding, venous pressure was measured at the proximal and distal part from the constricting site. RESULTS: Great difference was noted in the venous pressure between the proximal and distal part from the constricting site. The pressure was (9.4 +/- 4.5) mm Hg, (41.2 +/- 28.1) mm Hg at calm and (32.4 +/- 16.2) mm Hg, (41.2 +/- 28.1)mm Hg at breath holding (P < 0.01). Symptoms disappeared or released after operation. Ulcer healed in all patients. Venous pressure decreased by over 60%. Pressure recovery time was over 22 seconds. There was no reflux distal to the constricting site. Deep venous angiography and color Doppler showed an effect similar to venous valve. CONCLUSION: Annular constriction is effective in treating severe venous insufficiency of legs.
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