• W Wilhelm, K Berner, U Grundmann, M Palz, and R Larsen.
• Klinik für Anaesthesiologie und Intensivmedizin, Universitätskliniken des Saarlandes, Homburg/Saar.
• Anaesthesist. 1998 Dec 1;47(12):975-8.

BackgroundThe inhaled anaesthetic desflurane is characterized by a rapid wash-in and wash-out and may be useful for short paediatric ENT procedures. Therefore, this study was designed to compare the effects of desflurane or isoflurane on intubating conditions and recovery characteristics in paediatric ENT patients.MethodsIn this prospective, randomised investigation, we studied 44 children scheduled for ENT surgery, aged 4-12 yr and classified ASA I-II. After thiopentone induction (5-8 mg/kg) the lungs were ventilated by face mask and the vaporizer was dialed to 1 MAC (age-adapted) of desflurane of isoflurane. A reduced dose of vecuronium (0.05 mg/kg) was administered, and intubating conditions were rated 3 min later. Following tracheal intubation, 50% nitrous oxide were added, and the concentration of desflurane or isoflurane was adjusted according to clinical needs. At the end of surgery all anaesthetics were discontinued simultaneously and recovery times were recorded.ResultsIntubating conditions were rated significantly better for desflurane (excellent or good 20 of 22) than for isoflurane (12 of 22). Recovery times were significantly shorter for desflurane than for isoflurane (mean +/- SE): spontaneous ventilation 4.0 +/- 0.5 min vs. 6.0 +/- 0.7 min, extubation 8.4 +/- 0.7 vs. 11.4 +/- 1.1 min and arrival at PACU 11.5 +/- 0.8 vs. 16.6 +/- 1.5 min. No airway complications (coughing, laryngospasm, or desaturation < 97%) were noted for either anaesthetic.ConclusionsFollowing an intravenous induction improved intubating conditions, shorter recovery times and the lack of airway complications make desflurane a suitable alternative to isoflurane for paediatric ENT anaesthesia.

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