• Arch Otolaryngol · Feb 1997

    Tubeless spontaneous respiration technique for pediatric microlaryngeal surgery.

    • M C Quintal, M J Cunningham, and L R Ferrari.
    • Department of Otolaryngology, Hôpital Sainte-Justine, Montréal University School of Medicine, Québec, USA.
    • Arch Otolaryngol. 1997 Feb 1;123(2):209-14.

    BackgroundTubeless spontaneous respiration technique for pediatric microlaryngeal surgery may be accomplished using different anesthetic protocols. Two methods, inhalation of volatile anesthetic agents alone and in combination with intravenous propofol, are reviewed with regard to intraoperative airway stability, post-operative morbidity, recovery room course, and halothane concentration required during maintenance anesthesia.DesignRetrospective case series.SettingOtolaryngology referral hospital.Patients And MethodsTwenty-nine microlaryngeal procedures were performed using tubeless spontaneous respiration technique in children ranging from 2 weeks to 11 years of age. The following 2 anesthetic protocols were used: inhaled volatile anesthetic agents alone in 18 procedures and in combination with intravenous propofol in 11. Anesthesia, surgery, and recovery room times were documented. Specific characteristics of anesthetic maintenance, including total anesthetic gas flow (liters per minute), variations of halothane concentration (percentage), and duration of halothane administration (minutes) were also recorded to calculate the mean concentration of halothane (percentage) delivered to each patient.ResultsNo statistical differences were observed between the 2 protocols in terms of anesthesia and surgical outcomes. Adjusting for differences in patient age, weight, maintenance duration, and total anesthetic gas flow, the introduction of propofol allowed a statistically significant reduction in the mean concentration of halothane required during maintenance anesthesia.ConclusionsBoth tubeless spontaneous respiration technique protocols proved successful in this study. However, the addition of propofol allowed a significant reduction in the halothane requirement during anesthesia maintenance. This has the potential benefit of decreasing the exposure of operating room personnel to volatile anesthetics during tubeless spontaneous respiration technique.

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