[Humidified high flow nasal cannula and visual laryngoscope].

Objective: To study the application value of humidified high flow nasal cannula （HHFNC） combined with visual laryngoscopy in the arytenoid cartilage dislocation. Methods: Twenty-nine patients with arytenoid cartilage dislocation were randomly double-blind into HHFNC group and general nasal catheter oxygen suction group, and the intraoperative and postoperative evaluation indicators, anesthesia-related indicators and postoperative vocal cord were compared. Results: There were statistically significant differences in intraoperative blood oxygen saturation, microstream end-tidal carbon dioxide partial pressure EtCO₂, respiratory rate and respiratory intervention times between the two groups （ P <0.05）, and statistically significant differences in postoperative heart rate, oxygen saturation and respiratory rate （ P <0.05）. After reduction, the voice disturbance index, the degree of voice abnormality, rough voice, breath sound, powerless pronunciation and catatonic pronunciation changed significantly after operation. Conclusion: HHFNC combined with visual laryngoscopy in the arytenoid cartilage dislocation has high anesthetic safety, good cooperation of patients, and good surgical effect.
Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose.
(Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)