Hypothesis: Trigeminus-evoked somatosensory potentials (TRI-SEP) may be used as an alternative technique to medianus-evoked somatosensory potentials (MED-SEP) in patients undergoing elective carotid surgery.
For CNS-monitoring somatosensory-evoked responses ba electrical stimulation of the contralateral median nerve are established: A reduction of amplitude and a delay in latency may represent a sensible marker of imminent cerebral ischemia. This study will evaluate a new concept by using trigeminal nerve evoked somatosensory evoked potentials in comparison to the established MED-SEP. Beside the comparison of two methods of neuromonitoring, this study will investigate the neurological long-term outcome (90-day evaluation) with different neuropsychological tests for the detection of cognitive deficits.
Study Type
OBSERVATIONAL
Enrollment
120
intraoperative neurophysiological monitoring
intraoperative neurophysiologic monitoring
neurological short- and longterm outcome
Klinikum St. Georg, Clinics of Anesthesiology, Critical Care and Pain Therapy
Leipzig, Saxony, Germany
detection of episodes of cerebral ischemia during carotid surgery
Time frame: intraoperative, 28 days, and 60 days after surgery
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