title: [Duplex sonographic monitoring of infra-inguinal arterial reconstructions: can a threatened bypass occlusion be detected by this method?].
abstract: In our institution, 95 infrainguinal arterial reconstructions were prospectively entered into a graft surveillance programme which consisted of a postoperative i.a. DSA and routine assessment of graft flow velocity (GFV) and ankle pressure indices (ABI) during the first postoperative year. An average of 4.1 GFV measurements was obtained during a mean follow-up period of 8.2 months. Abnormal GFV led to arteriography in 29 bypasses identifying--aside from three false positive findings--two graft occlusions and 24 severe (> 70%) graft stenoses. Of the latter, in only 7 cases a significant decrease in ABI was found. Unheralded graft occlusion occurred in 6 patients. Including the corrections of the above mentioned lesions, secondary patency rates were 97% at 30 days and 89% at one year.
authors.affiliation: Klinik für Gefäss- und Thoraxchirurgie, Zentralklinikum Augsburg.
authors.forename: K D
authors.initials: KD
authors.lastname: Wölfle
authors.forename: S
authors.initials: S
authors.lastname: Neudert
authors.forename: B
authors.initials: B
authors.lastname: Mayer
authors.forename: G
authors.initials: G
authors.lastname: Storm
authors.forename: H
authors.initials: H
authors.lastname: Bruijnen
authors.forename: H
authors.initials: H
authors.lastname: Loeprecht
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000714:Anastomosis, Surgical; D001158:Arteries / Q000000981:diagnostic imaging / Q000601:surgery; D001783:Blood Flow Velocity / Q000502:physiology; D001807:Blood Vessel Prosthesis; D005260:Female; D005500:Follow-Up Studies; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging*; D006801:Humans; D007511:Ischemia / Q000000981:diagnostic imaging / Q000601:surgery*; D007866:Leg / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D012501:Saphenous Vein / Q000637:transplantation*; D014463:Ultrasonography
chemical_list: D011138:Polytetrafluoroethylene
vernacular_title: Duplexsonographische Uberwachung von infrainguinalen arteriellen Rekonstruktionen: Kann dadurch ein drohender Bypassverschluss erkannt werden?