If injecting conventional contrast media into varicose superficial veins, one may often notice that as soon after as the very next day the vein will show all symptoms of phlebitis (May and Mignon, 1978). In varicose veins this is of minor consequence and occasionally even saves the trouble of sclerosing therapy. We suspect, however, that similar effects might occur as a consequence of filling deep leg veins by contrast medium. In particular, the region of the valvular sinus is endangered.
KeywordsContrast Medium Osmotic Pressure Varicose Vein Venous Valve Valvular Apparatus
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