Significance of Reflux Evaluations Using Ultrasonography in Varicose Veins

Abstract

The importance of ultrasonography for varicose vein treatment is evident. However, the technique proposed by the Japanese Society of Phlebology requires additional time for the examination. We review whether the presence of reflux can be evaluated from the great saphenous vein (GSV) diameter. We measured reflux and GSV diameter near the sapheno-femoral junction and the center of the thigh. Moreover, we examined, the relationship of the GSV diameter to reflux, reflux diagnostic ability using the vein diameter, and reflux-negative diagnostic ability. When a symptom and reflux were observed, the GSV significantly dilated. Furthermore, GSV diameter was useful for reflux diagnosis, but without 100% sensitivity. Specificity was low when the sensitivity was set to 100% with reflux-negative diagnostic ability. We concluded that GSV diameter alone cannot determine the strategy for treatment of varicose veins, and reflux evaluation is necessary.