Awake nasotracheal intubation with a 300-mm working length fiberscope: a prospective observational feasibility trial

Autor: Ioan Florin Marchis, Claudiu Zdrehus, Sever Pop, Doinel Radeanu, Marcel Cosgarea, Calin Iosif Mitre
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Brazilian Journal of Anesthesiology, Vol 73, Iss 5, Pp 556-562 (2023)
Druh dokumentu: article
ISSN: 0104-0014
DOI: 10.1016/j.bjane.2021.10.015
Popis: Background: Awake fiberoptic tracheal intubation is an established method of securing difficult airways, but there are some reservations about its use because many practitioners find it technically complicated, time-consuming, and unpleasant for patients. Our main goal was to test the safety and efficacy of a 300-mm working length fiberscope (video rhino-laryngoscope) when used for awake nasotracheal intubation in difficult airway cases. Methods: This was a prospective, single-center study involving adult patients, having an ASA physical status between I and IV, with laryngopharyngeal pathology causing distorted airway anatomy. Awake nasotracheal intubation, using topical anesthesia and light sedation, was performed using a 300 mm long and 2.9 mm diameter fiberscope equipped with a lubricated reinforced endotracheal tube. The primary outcomes were the success and duration of the procedure. Patients’ periprocedural satisfaction and other incidents were recorded. Results: We successfully intubated all 25 patients included in this study. The mean ±SD duration of the procedure, starting from the passage of the intubating tube through one of the nostrils until the endotracheal intubation, was 76 ± 36 seconds. Most of the patients showed no discomfort during the procedure with statistical significance between the No reaction Group with the Slight grimacing Group (95%CI 0.13, 0.53, p = 0.047) and the Heavy grimacing Group (95%CI 0.05, 0.83, p = 0.003). The mean ±SD satisfaction score 24 hours post-intervention was 1.8 ± 0.86 – mild discomfort. No significant incidents occurred. Conclusions: Our study showed that a 300-mm working length flexible endoscope is fast, safe, and well-tolerated for nasotracheal awake intubation under challenging airways.
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