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. 1983 Nov;198(5):642–645. doi: 10.1097/00000658-198311000-00014

Determining criteria for shunt placement during carotid endarterectomy. EEG versus back pressure.

J J Ricotta, M H Charlton, J A DeWeese
PMCID: PMC1353138  PMID: 6639165

Abstract

EEG monitoring and carotid back pressure were performed on 100 patients undergoing elective carotid endarterectomy. Shunts were inserted selectively in those patients who showed change in EEG after a trial period of carotid clamping (15%). No patient in the series awoke with a neurologic deficit. Back pressures were significantly lower in the shunted group and these pressures roughly correlated with EEG changes. Only one patient with a back pressure of greater than 40 mmHg had EEG changes and this patient had a recent mild stroke. EEG changes were most frequent in patients with contralateral carotid occlusions and in asymptomatic significant stenoses. EEG is a more discriminating indicator for shunt insertion than back pressure, although a pressure greater than 40 mmHg is safe in patients without recent stroke.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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