Salvage of in situ femoropopliteal and femorotibial saphenous vein bypass with interventional radiology.

Arteriovenous fistulas and late graft stenoses are well-known potential causes of in situ saphenous vein bypass failure. Three patients are described who had one or both of these complications postoperatively (early and late). Two techniques are described that can be performed at the time of arteriography to save a functioning bypass.