• Journal of anesthesia · Oct 2023

    Randomized Controlled Trial

    Alkalized lidocaine in a tapered cuff suppresses endotracheal tube-induced hemodynamic changes: a randomized controlled trial.

    • Kumiko Ishida, Yuki Maruyama, Yuki Yoshiyama, Mariko Ito, Satoshi Tanaka, Dandan Shen, and Mikito Kawamata.
    • Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Nagano, 390-8621, Japan. kumiko_m@shinshu-u.ac.jp.
    • J Anesth. 2023 Oct 1; 37 (5): 726733726-733.

    PurposeThe use of an endotracheal tube (ET) cuff filled with alkalized lidocaine (AL) can suppress ET-induced emergence phenomena, such as hypertension, tachycardia and coughing, and postoperative sore throat (POST) and hoarseness (PH). The efficacy of intracuff lidocaine may vary depending on the cuff shape, but there has been no study on the effects of a tapered cuff filled with AL. We examined whether intracuff AL suppresses ET-induced emergence phenomena, POST and PH.MethodsSixty-two patients were enrolled in this study and the patients were randomly allocated to a group in which the tapered cuff was filled with AL (Group AL) and a group in which the tapered cuff was filled with normal saline (Group S). The primary outcomes of this study were changes in mean blood pressure (MBP) and heart rate (HR) at extubation. MBP, HR and the number of coughs were recorded before and up to 10 min after extubation. The degree of POST and the incidences of POST and PH were recorded at 15 min, 2 h and 24 h after extubation.ResultsChanges in MBP before extubation and HR before and after extubation were significantly lower in Group AL than in Group S (p < 0.025). The number of coughs at extubation and the incidence of PH at 2 h after extubation were significantly lower in Group AL than in Group S (p < 0.0001 and p = 0.014, respectively).ConclusionAL in a tapered cuff significantly suppresses ET-induced cardiovascular changes in MBP and HR.© 2023. The Author(s) under exclusive licence to Japanese Society of Anesthesiologists.

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