Abstract
A follow-up of 55 patients 2 years after a total of 60 carotid endarterectomies. Fifty-two patients who had a total of 57 endarterectomies survived the first 2 post-operative years and were re-examined using pulsed Doppler spectral analysis and intravenous digital subtraction angiography (IVDSA). One patient had died following a stroke and 2 after a cardiac infarction. The Doppler and IVDSA examinations revealed a non-symptomatic restenosis of the relevant internal carotid artery in 2 patients. There were no relevant occlusions and no symptomatic re-stenoses were detected. Spectral spreading of the Doppler signal at the site of the endarterectomy was found in 18% of the internal carotid arteries, whereas wall irregularities (diameter reduction less than 10%) were demonstrated in 25% by IVDSA. A stenosis or occlusion was found in 14 (25%) of the 57 ipsilateral external carotid arteries.
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