• J Clin Anesth · Jun 2016

    Randomized Controlled Trial Comparative Study

    The comparison of insertion depth for orotracheal intubation between standard polyvinyl chloride tracheal tubes and straight reinforced tracheal tubes.

    • Jung-Eun Kim, Sung-Wook Park, and Jong-Man Kang.
    • Department of Anesthesia and Pain Medicine, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul, Korea.
    • J Clin Anesth. 2016 Jun 1; 31: 90-3.

    Study ObjectiveTo investigate whether these properties of reinforced tubes cause difference in insertion depth compared to standard polyvinyl chloride tracheal tubes.DesignA randomized controlled trial.SettingOperation room.MaterialsStandard polyvinyl chloride tracheal tubes, reinforced tubes.InterventionsSeventy-six adult patients undergoing surgery under general anesthesia were randomly allocated with standard tube (n=38) or reinforced tube (n=38) intubation. The endotracheal tube was fixed at the right canine with a predetermined insertion depth using the formula: endotracheal tube insertion length (cm)=0.1977 × [body height (cm)] - 12.7423.MeasurementsThe distances between the tracheal tube tip and the carina using fiberoptic bronchoscope.Main ResultsThe mean tip-to-carina distance of reinforced tube was about 1.2cm longer than that of standard tube (P<.001).ConclusionsThe insertion depth of straight reinforced tracheal tubes can be shorter than that of standard polyvinyl chloride tracheal tubes due to different tube pathways in the upper airway.Copyright © 2016. Published by Elsevier Inc.

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