Hyperperfusion syndrome after carotid endarterectomy: a transcranial Doppler evaluation

Transcranial Doppler ultrasonography was used to evaluate 2 patients who developed hyperperfusion syndromes after carotid endarterectomy. During the initial postoperative period, each patient had symptoms that were associated with elevated flow velocities in the ipsilateral cerebral vasculature. In...

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Bibliographic Details
Published inNeurosurgery Vol. 26; no. 1; p. 56
Main Authors Powers, A D, Smith, R R
Format Journal Article
LanguageEnglish
Published United States 01.01.1990
Subjects
Brain Diseases - diagnosis
Brain Diseases - etiology
Carotid Arteries - surgery
Endarterectomy
Female
Humans
Male
Middle Aged
Postoperative Complications - diagnosis
Reperfusion Injury - diagnosis
Ultrasonography
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Summary:Transcranial Doppler ultrasonography was used to evaluate 2 patients who developed hyperperfusion syndromes after carotid endarterectomy. During the initial postoperative period, each patient had symptoms that were associated with elevated flow velocities in the ipsilateral cerebral vasculature. In addition, vascular resistance of these vessels was found to be abnormally low, as reflected by the Gosling pulsatility index. As the patients' symptoms improved, flow velocities decreased to normal levels and pulsatilities were noted to increase proportionately.
ISSN:0148-396X
1524-4040
DOI:10.1227/00006123-199001000-00008