Hilda Rogers

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The effects of fentanyl or diazepam on somatosensory, visual and brainstem auditory evoked potentials were studied in 13 healthy patients scheduled for elective surgery. Following control recordings of evoked potentials, either diazepam 20 mg or fentanyl 200 micrograms was administered intravenously. Evoked potentials were then recorded twice in the(More)
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(More)
Acknowledgments Grants from the Agricultural Development Board through the Kentucky Horticulture Council have allowed an expansion of the field research and demonstration program to meet the informational and educational needs of our growing vegetable and fruit industries. Important note to readers: The majority of research reports in this volume do not(More)
No single, reliable, and easily applied neurophys-iological measure of anaesthetic depth is currently available. Although a number of techniques of EEG analysis, which involve visual inspection of the EEG trace and increasingly sophisticated methods of signal processing, have been proposed (Evans and Davies, 1984), all have limitations in that the changes(More)
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