Transcutaneous Cranial Electrical Stimulation Increases the Potency of Nitrous Oxide in Humans

摘要: The potency, amnesic, and postanesthetic analgesic effects of transcutaneous cranial electrical stimulation (TCES) were evaluated during N2O anesthesia in 120 unpremedicated patients, prior to urologic or general surgical operations. patients divided into six groups 20 each with respect what concentration oxygen they allowed breathe (75, 62.5, 50%), whether not stimulated TCES. Recordings heart respiratory rates, systolic arterial blood pressure, minute ventilation made after min N2O, one later following application a Kocker clamp the upper inner thigh for minute. presence absence movement painful stimulus, memory pain at site (20 anesthesia) also evaluated. Patients who received TCES had significantly lower incidences movement, than getting did alter circulatory dynamics prevented an increase pressure receiving 50% N2O. These data indicate that increases potency probably depth anesthesia.