Hemodynamics evaluation of the deep vein of lower extremities after surgical treatment of varicose vein

Abstract

Objective To discuss the effect of surgical treatment of varicose vein on primary chronic venous insufficiency(PCVI) in the lower extremities. Methods Between August 2007 and August 2008, 128 PCVI patients underwent high ligation of the great saphenous vein and endovenous electrocoagulation of the varix superficial vein. Spectrum Doppler ultrasound was used to measure the superficial femoral vein blood flow hemodynamic information beneath the first pair of valve including quiet breathing condition and the Valsalva action (reflux time、caliber、reflux velocity). Reflux index (RI) was used as guide line. Results Clinical sympotoms improved in 54 out of 60 mild PCVI cases, in 29 of 45 moderate PCVI patients, while only in 6 out 23 cases in whom severe preoperative clinical symptom with PCVI was present. The effective rate respectively was 90％, 64％, and 30％. The mild reflux index significantly improved than that before operation ( t = 21. 484, P = 0. 000 ), the moderate reflux index improved than that before operation ( t = 2. 173, P = 0. 035 ) , while the serious reflux index were not statistically improved than that before operation( t = 1. 888, P = 0. 078 ). In all cases reflux index improved after the surgery ( x2 = 8. 266,P = 0. 004). Conclusions Minimally invasive surgical treatment of varicose veins can improve the reflux of the deep vein in PCVI cases with mild to moderate clinical symptom. Key words: Varicose veins; Hemodynamics; Venous insufficiency; Ultrasonography, Doppler