Reproducibility of Intraoperative Visual Evoked Potentials: A Review of 141 Cases Undergoing Prone Spinal Procedures

Autor:	Hemant S. Kudrimoti, Alex Rosenblum, Colin R. Bamford, Lila L. Reed, David L. Orte
Rok vydání:	2010
Předmět:	Intoxicative inhalant Reproducibility genetic structures Inhalation business.industry Stimulation Visual evoked potentials Medical Laboratory Technology Prone position Anesthesia Anesthetic Medicine Neurology (clinical) Latency (engineering) business medicine.drug
Zdroj:	American Journal of Electroneurodiagnostic Technology. 50:79-100
ISSN:	2375-8619 1086-508X
DOI:	10.1080/1086508x.2010.11079760
Popis:	Visual evoked potentials (VEPs) and surface electroretinograms (ERGs) were recorded using flash stimulation during prolonged spine procedures performed in the prone position on 141 subjects without known visual deficits in the presence of various anesthetic protocols that included inhalation and intravenous agents. Waveforms were subjectively evaluated with respect to morphology, latency, amplitude, and reproducibility, with specific attention to the effects of minimal alveolar concentration (MAC) of the inhalant in the anesthetic regimen. Although inter-subject variability was noted in the morphology of the VEPs, waveforms were highly reproducible within individual subjects and were relatively invariant over time. Reproducibility correlated inversely with the MAC level of inhalation agent. Potentials recorded using infraorbital-to-midline electrodes were also robust, reproducible, and stable, and similarly varied inversely with the MAC of inhalation agent. These waveforms were similar in morphol...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::10522ce58220690a891763b713576808 https://doi.org/10.1080/1086508x.2010.11079760 Zobrazit plný text záznamu Plný text ve formátu PDF