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  • Title: Intraoperative and early postoperative colour Doppler sonography after carotid artery reconstruction: follow-up of technical defects.
    Author: Dorffner R, Metz VM, Trattnig S, Eibenberger K, Dock W, Hörmann M, Trubel W, Grabenwöger F.
    Journal: Neuroradiology; 1997 Feb; 39(2):117-21. PubMed ID: 9045972.
    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.
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