Patients, especially males, do not easily stand endoscopic urological diagnostic examinations. So flunitrazepam (0.01 mg/kg IV) has been used to insure a suitable sedation. At the end of such examination flumazenil, a selective benzodiazepine antagonist has been injected. The levels of sedation and orientation so obtained and the cardiorespiratory parameters have been collected during a one hour follow-up from the intravenous injection of the antagonist. This method presents minimal side effects (a marginal, but statistically significative, systolic arterial pressure reduction), a completely normal coordination of movements and awareness of space and time relationship at the end of the observation period. Therefore it is a very good solution for short time examinations giving the chance to safely and shortly dismiss the patient.
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