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  • Title: Tubeless Total Intravenous Anesthesia Spontaneous Ventilation for Adult Suspension Microlaryngoscopy.
    Author: Yoo MJ, Joffe AM, Meyer TK.
    Journal: Ann Otol Rhinol Laryngol; 2018 Jan; 127(1):39-45. PubMed ID: 29171300.
    Abstract:
    INTRODUCTION: Maintaining spontaneous ventilation (SV) under total intravenous anesthesia (TIVA) without an endotracheal tube provides uninterrupted and unobstructed surgical access for suspension microlaryngoscopy (SML). This study describes the method and outcome of adults who underwent SML under tubeless TIVA-SV. METHODS: Retrospective review of adults who underwent SML between June 2014 and September 2016 using TIVA-SV without an endotracheal tube. RESULTS: Sixty-six cases in 36 patients were included with mean age of 50.6 years and 52.7% were female. Airway pathology included 41.6% subglottic or tracheal stenosis, 19.4% laryngeal lesion or mass, 16.7% glottic stenosis, 13.9% recurrent respiratory papilloma, and 8.3% supraglottic stenosis. Anesthesia was most commonly provided by continuous infusion of propofol and remifentanil (57.6%). Approximately half (53%) of cases received superior laryngeal nerve block. Average operative time was 72.9 minutes (range, 27-166 minutes). Eight cases required supplemental ventilation: 6 cases required transient endotracheal ventilation or mask ventilation, and 2 cases were converted to alternative ventilation. CONCLUSIONS: Total intravenous anesthesia is an attractive alternative to traditional endotracheal tube intubation, jet ventilation, or intermittent apneic ventilation for adult SML. During episodes of hypoventilation or desaturation, endotracheal ventilation, mask ventilation, or jet ventilation can effectively recover oxygenation.
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