Category Archives: Post Thrombotic Syndrome

VV surgery after DVT

A common clinical dilemma is the management of patients with symptomatic varicose veins who have had a past deep vein thrombosis (DVT). In these cases it is unclear as to whether symptoms result from the post-thrombotic syndrome (PTS) or from superficial venous reflux/insufficiency (SVI), or a combination of both. If a DVT history is extracted… Read More »

Scarring post DVT

A deep vein thrombosis (DVT) in the leg may cause several pathological lesions. These include obstruction, stenosis and scarring of the vein wall. Whilst imaging methods may detect the main lesions, it is likely that the DVT process affects all the leg veins, resulting in a more stiff system which is less capable of facilitating… Read More »

May-Husni bypass

In the advent of modern endovenous techniques open venous surgery still has a place in bypassing obstructed veins. The May-Husni procedure is used to bypass an obstructed (superficial) femoral vein by transposing the distal end of the great saphenous vein (GSV) to the popliteal vein. Most of these patients develop obstructive symptoms from a previous… Read More »

Chronic venous obstruction

Chronic venous obstruction (CVO) is a term used to describe venous obstruction related mostly to a previous deep vein thrombosis (DVT). Post-thrombotic changes occur in the form of fibrosis and scarring within deep veins. In some cases CVO can be caused by congenital abnormalities like vein aplasia, hypoplasia or agenesis. Occasionally, chronic mechanical obstruction is… Read More »


This is an abbreviation for the Post Thrombotic Syndrome. It is the leg pain and swelling which occurs in many patients 6 months after a first DVT or 3 months after a recurrent DVT. Duplex ultrasound examination may reveal deep vein damage and scarring. This is seen as thickening of the vein wall with degrees of obstruction and/or deep… Read More »