Neurologia medico-chirurgica
Online ISSN : 1349-8029
Print ISSN : 0470-8105
ISSN-L : 0470-8105
Intraoperative Monitoring of Somatosensory Evoked Potentials in Patients with Cerebral Aneurysm
—Correlation Between Central Conduction Time and Postoperative Neurological Status—
Masayuki MATSUDAMinoru KIDOOKATakuya NAKAZAWAKazumitsu KYOSHIMAJyoji HANDA
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1991 Volume 31 Issue 1 Pages 13-17

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Abstract
Somatosensory evoked potentials (SEPs) were monitored during 55 aneurysm procedures in 49 patients to investigate the relationship between central conduction time (CCT) and neurological status in the immediate postoperative period. Significant CCT prolongation was observed in 15 cases. The postoperative neurological status deteriorated in nine of the 15 cases, compared with three of 40 cases without appreciable CCT changes. This difference was significant at p < 0.05. The CCT prolongation was ascribable to temporary vascular occlusion in half of the cases. Intraoperative SEP monitoring is useful in predicting neurological morbidities in the immediate postoperative period in patients with cerebral aneurysm.
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© The Japan Neurosurgical Society
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