title: Intraoperative and early postoperative colour Doppler sonography after carotid artery reconstruction: follow-up of technical defects.
abstract: We studied 50 patients with intraoperative colour-coded Doppler sonography (CCDS) after carotid artery reconstruction. Technical defects could be detected in 19 cases (38 %): residual plaques in 9, flaps in 8 and strictures in 2. In 9 cases (18 %) the carotid endarterectomy was revised. One residual plaque and one residual stricture caused thrombosis at the operative site a few hours postoperatively. One of the patients with residual plaques developed a high-grade stenosis within the follow-up period. Of the patients with residual plaques two had a medium-grade stenosis at follow-up. Six flaps decreased in size or disappeared within 1 week after operation. No patient with a flap developed a stenosis within the follow-up period. Our findings seem to indicate that correction of intimal flaps less than 10 mm in size is not necessary.
authors.affiliation: Department of Radiology, University of Vienna, Währinger Gürtel, Austria.
authors.forename: R
authors.initials: R
authors.lastname: Dorffner
authors.forename: V M
authors.initials: VM
authors.lastname: Metz
authors.forename: S
authors.initials: S
authors.lastname: Trattnig
authors.forename: K
authors.initials: K
authors.lastname: Eibenberger
authors.forename: W
authors.initials: W
authors.lastname: Dock
authors.forename: M
authors.initials: M
authors.lastname: Hörmann
authors.forename: W
authors.initials: W
authors.lastname: Trubel
authors.forename: F
authors.initials: F
authors.lastname: Grabenwöger
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001807:Blood Vessel Prosthesis; D001921:Brain / Q000098:blood supply; D002545:Brain Ischemia / Q000000981:diagnostic imaging / Q000601:surgery*; D016893:Carotid Stenosis / Q000000981:diagnostic imaging / Q000601:surgery*; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging / Q000601:surgery; D016894:Endarterectomy, Carotid; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D011138:Polytetrafluoroethylene; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color; D017585:Ultrasonography, Doppler, Transcranial; D014680:Veins / Q000637:transplantation
chemical_list: D011138:Polytetrafluoroethylene