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    The content on this page is not current guidance and is only for the purposes of the consultation process.


    Chronic limb-threatening ischaemia happens when blocked arteries reduce blood flow to a limb (usually the leg). Symptoms include pain and ulcers. In severe cases the tissue dies because of the lack of blood supply and there is a high risk of losing the limb.

    In this procedure, under general anaesthesia, 2 small tubes are inserted through the skin (percutaneous) and moved into the target artery and vein, deep in the leg. A needle is used to create a hole to allow blood to flow from the artery into the vein, into the part of the leg beyond the blockage (venous arterialisation). The valves inside the vein are removed, and stents (small tubes) are placed to keep the hole working. The aim is to improve symptoms and preserve the affected limb by restoring blood flow.