Abstract
Background: Potent inhalation anesthetics potentiate the neuromuscular blocking effects of non-depolarizing muscle relaxants. Therefore, sevoflurane may increase the safety margin at the end of anesthesia by reducing the muscle relaxant dose requirements. We studied the recovery from rocuronium-induced neuromuscular blockade during sevoflurane- versus propofol-based anesthesia in children. Methods: Fifty pediatric patients were randomly allocated to maintenance of anesthesia with sevoflurane (n = 25) or propofol (n = 25). Neuromuscular block was maintained with rocuronium and monitored by acceleromyography (TOF-) using train-of-four (TOF) stimulation every 12 seconds. Anesthetic agent administration was gradually reduced and then stopped toward the end of procedure. At the end of surgery, neostigmine 0.04 mg/kg was administered. Time of tracheal extubation, time of arrival in PACU, amount of rocuronium given were recorded. Results: TOF ratio at the end of surgery was greater in sevoflurane group () than in propofol group ()(P vs )(P vs min), and time to arrival in PACU ( vs min) from end of surgery were shorter in sevoflurane group than in propofol group (P
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