• The Laryngoscope · Sep 1996

    Apneic anesthesia with intermittent ventilation for microsurgery of the upper airway.

    • E C Weisberger and J D Emhardt.
    • Department of Otolaryngology-Head and Neck Surgery, Indiana University Medical Center, Indianapolis 46202, USA.
    • Laryngoscope. 1996 Sep 1; 106 (9 Pt 1): 1099-102.

    AbstractApneic anesthesia with intermittent ventilation (AAIV) has been used in 250 procedures on the larynx and trachea at Indiana University Medical Center since October 1989. Initially employed for laryngeal papilloma removal in children, this anesthetic technique is now used for other procedures and in adult patients. The advantages of AAIV include improved visualization of the airway, absence of combustible material, and lack of vocal cord motion during surgery. No significant complications have occurred with AAIV. The high degree of safety for this anesthetic technique relates largely to the constant monitoring of oxygen saturation using pulse oximetry and the periodic measurement of end-tidal carbon dioxide (CO2) levels. Contraindications to AAIV are age less than 2 years, significant cardiopulmonary disease, and any hypermetabolic state. Relevant pulmonary physiology includes the unique aspects of oxygen and CO2 metabolism in children.

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