title: [Earlier experiences with duplex scanning of femoropopliteal and crural vein bypass].
abstract: Identification and correction of graft stenoses in femoropopliteal and -crural vein bypasses can prevent reconstruction failure. Sixty six consecutive vein bypasses entered a postoperative surveillance protocol, which implied clinical assessment, measurement of ankle blood pressure and duplex-scanning every three months. In 15 cases the duplex-scanning indicated graft stenoses. Seven were revised, five of which remain patent after a median follow-up of three months. Eight stenoses were observed without intervention. Five of these uncorrected stenoses (63%) thrombosed and the function of the bypass could not be reestablished. Of the 34 bypasses with normal duplex-scans only 2 (6%) thrombosed (p < 0.01 compared to observed but not revised stenosis). Neither clinical evaluation or ankle blood pressure measurement could reliably predict graft failure. This study indicates that duplex-scanning effectively identifies grafts at risk and can be expected to improve long-term patency of infrainguinal vein bypasses.
authors: Karkirurgisk afdeling RK, Rigshospitalet, København.
authors: T G
authors: TG
authors: Nielsen
authors: F
authors: F
authors: von Jessen
authors: T V
authors: TV
authors: Schroeder
mesh_terms: D000368:Aged; D001166:Arteriovenous Shunt, Surgical / Q000009:adverse effects; D001807:Blood Vessel Prosthesis / Q000009:adverse effects; D015150:Echocardiography, Doppler; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging* / Q000601:surgery; D005500:Follow-Up Studies; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011152:Popliteal Vein / Q000000981:diagnostic imaging* / Q000601:surgery; D011182:Postoperative Care; D011446:Prospective Studies; D012086:Reoperation; D014654:Vascular Patency
vernacular_title: Tidlige erfaringer med duplexovervågning af femoropopliteale og -krurale vene-bypass.