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  • Title: Injuries to the bronchi and lungs caused by laser-ignited endotracheal tube fires.
    Author: Duncavage JA, Ossoff RH, Rouman WC, Toohill RJ, Almagro UA, Carl GA, Aronson S.
    Journal: Otolaryngol Head Neck Surg; 1984 Dec; 92(6):639-43. PubMed ID: 6440081.
    Abstract:
    A CO2 laser attached to an operating room microscope was used to produce extraluminal and intraluminal ignition of various endotracheal tubes in dogs. Extraluminal ignition was produced in Silastic and red rubber endotracheal tubes. The red rubber tube ignited before the tube lumen was penetrated. The Silastic tube failed to ignite while the cuff was inflated. When the cuff was deflated, ignition occurred before the lumen was penetrated. No lung or bronchial injuries were detected in the red rubber or Silastic endotracheal tube extraluminal fires. Intraluminal fires were produced in Silastic, red rubber, and polyvinylchloride (PVC) endotracheal tubes. Microscopic examination of the bronchi and lungs revealed severe injuries in dogs intubated with the PVC and red rubber endotracheal tubes. No injuries to the bronchi and lungs were detected in the Silastic tube group, although the potentially toxic effects of silica ash require further investigation.
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