A Study to Evaluate the Safety and Efficacy of Ultiva (Remifentanil Hydrochloride) in Pediatric Participants General Anesthetised

After intubation, continuous intravenous infusion of remifentanil (0.25 µg/kg/min) is started, while anesthesia is maintained with inhaled or intravenous anesthetics. In cases where sedation by general anesthetics and analgesia by lidocaine does not seem to provide a sufficient means of analgesia at the time of intubation, remifentanil may be used, beginning before intubation. The rate of infusion may be adjusted while monitoring the subject's general condition in 25% to 100% increments or in 25% to 50% decrements every 2 to 5 minutes, but should not exceed 1.3 µg/kg/min.