Two layers of graduated compression stockings can reduce healthy saphenous vein diameters in the standing position

摘要

Background Previous studies reported graduated compression stockings can reduce the calibre of deep veins in the standing subjects. However, the literature has been inconclusive on the effect of graduated compression stockings on superficial veins in standing subjects. Objectives To assess the effect of two layers of graduated compression stockings on the diameter of saphenous veins in healthy subjects. Materials and methods In 17 legs of nine healthy subjects, we studied the effect of single layering and double layering of graduated compression stockings (23–32?mmHg, Thigh High Belted Sigvaris, Switzerland) on the diameter of the great saphenous vein mid-thigh, great saphenous vein mid-calf and small saphenous vein mid-calf. The measurements were taken using duplex ultrasound (Toshiba Aplio XG 500, 18-7 MHz transducer), through the fabric using a generous amount of ultrasound gel, on subjects both supine or prone and standing. Results Two layers of Class II graduated compression stockings reduced the calibre of great saphenous vein mid-thigh from (4.1?mm to 3.3?mm, p?