ArticleBritish journal of anaesthesia2025
Efficacy of high-flow nasal cannula in improving the view of the glottis during flexible bronchoscopy for tracheal intubation.
Article in British journal of anaesthesia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Use of high-flow nasal oxygenation in minimizing the occurrence of hypotension during induction of anesthesia with remimazolam in elderly patients.Journal of anesthesia · 2026Article
- High-flow nasal oxygen in a sedated patient with hypoxemia undergoing balloon kyphoplasty in the prone position.Journal of anesthesia · 2026Article
- High-Flow Nasal Oxygen in Contemporary Airway Management: Enhancing Physiological Safety in Anaesthesia-A Narrative Review.Healthcare (Basel, Switzerland) · 2026Review
- Efficacy of inserting a flexible bronchoscope to a predetermined depth for orotracheal intubation by inexperienced personnel: a randomized-controlled study.Journal of anesthesia · 2026Article
- Unexpected difficult airway management and usefulness of high-flow nasal oxygenation for awake fiberoptic tracheal intubation: a case report.JA clinical reports · 2026Article
- Anesthesia management for cardiac catheter ablation: what anesthesiologists should know.Journal of anesthesia · 2025Review
- High-flow oxygenation therapy for a sedated elderly frail patient with hiccups undergoing transcatheter aortic valve implantation.JA clinical reports · 2025Article
- High-flow nasal cannula oxygenation reduces desaturation risk during diagnostic flexible bronchoscopy under deep sedation: a randomized controlled trial.Frontiers in medicine · 2025Article
- Asystole during laryngoscopy with a videolaryngoscope in a patient with an anticipated difficult airway: A case report.Saudi journal of anaesthesiaArticle
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Authors and funding
3 authors.
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Abstract
backgroundFlexible bronchoscopy for tracheal intubation is indicated in patients with difficult airways, but the upper airway is frequently obstructed in sedated or anaesthetised apnoeic patients. This makes it more difficult to locate the glottis through bronchoscopy, and increases the risk of hypoxaemia. Nasal high-flow oxygenation is useful to prevent hypoxaemia during airway management, but no studies have assessed if this method of oxygenation improves the bronchoscopic view of the glottis by preventing upper airway obstruction.
methodsAs a crossover design, we studied 20 anaesthetised apnoeic patients to assess if nasal high-flow oxygenation (60 L min
resultsThe pharyngeal space was wider with nasal high-flow oxygenation than without in 19 of 20 patients (95%; 95% confidence interval [CI]: 85-100%; P<0.0001), and bronchoscopic view of the glottis was better with high-flow oxygenation than without in 17 of 20 patients (85%; 95% CI: 69-100%, P<0.0001). The flexible bronchoscope was easily inserted into the trachea in all patients, and no complications including hypoxaemia were observed.
conclusionsNasal high-flow oxygenation facilitates flexible bronchoscopy for tracheal intubation by widening the pharyngeal space and by improving the view of the glottis through the bronchoscope. Therefore, use of nasal high-flow oxygenation is useful in patients with difficult airways in whom flexible bronchoscopy for tracheal intubation is indicated.
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