Median nerve somatosensory evoked potentials during isoflurane anaesthesia
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چکیده
منابع مشابه
Median nerve somatosensory evoked potentials during isoflurane anaesthesia.
PURPOSE The effect of isoflurane on the subcortical P14 component of the median nerve somatosensory evoked potential (SEP) is poorly known. We studied whether the P14 wave from the upper brainstem, recorded with a nasopharyngeal electrode, was attenuated at the isoflurane-induced EEG burst-suppression level. We also compared the effect of isoflurane on the P14, cervical N13 and cortical N20, N3...
متن کاملEvoked potentials during isoflurane anaesthesia.
Somatosensory, visual and brainstem auditory evoked potentials were recorded in 10 unpremedicated patients anaesthetized with isoflurane in oxygen. Recordings were made at 0.5%, 1.1% and 1.65% (six patients) end-tidal isoflurane concentration. There were statistically significant increases in the latencies of the somatosensory (N20), visual and brainstem auditory potentials (waves III and V) wi...
متن کاملSequential measurement of the median nerve somatosensory evoked potential during isoflurane anaesthesia in children.
We have used sequential measurements of median nerve somatosensory evoked potentials (mnSSEP) in 10 children to estimate the equilibration time of an inhalation anaesthetic agent between alveolar gas, arterial blood and brain. MnSSEP were obtained sequentially every 90-180 s. After control measurements in the absence of isoflurane, the end-tidal concentration was increased stepwise (0.25, 0.5 a...
متن کاملSurgical stimulation increases median nerve somatosensory evoked responses during isoflurane-nitrous oxide anaesthesia.
Median nerve somatosensory evoked responses (MnSSER) were recorded in 15 healthy adult patients, ASA I-II, before and during orthopaedic surgery. After induction of anaesthesia with fentanyl 0.1-0.15 mg, etomidate 0.3 mg kg-1 and vecuronium 0.1 mg kg-1, anaesthesia was maintained with 0.6% isoflurane (end-tidal) and 66% nitrous oxide in oxygen. MnSSER were recorded after establishment of steady...
متن کاملEffects of isoflurane anaesthesia on the median nerve somatosensory evoked potential in children.
Evoked potentials are used to determine the integrity of neural pathways during neurosurgical and orthopaedic procedures, but the extent to which they may be altered by anaesthetic agents has not been studied systematically in children. In this study we have recorded median nerve somatosensory evoked potentials (mnSSEP) in children during isoflurane anaesthesia to determine if there are changes...
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ژورنال
عنوان ژورنال: Canadian Journal of Anaesthesia
سال: 1997
ISSN: 0832-610X,1496-8975
DOI: 10.1007/bf03011968