ArticleTuberculosis and respiratory diseases2020
Risk Factors for Predicting Hypoxia in Adult Patients Undergoing Bronchoscopy under Sedation.
Article in Tuberculosis and respiratory diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 12 citations in OpenAlex.
- Assessment of Conventional Oxygen Therapy, High-Flow Nasal Cannula, and Non-Invasive Ventilation to Secure Bronchofiberoscopy in Patients with Respiratory Acidosis: A Narrative Review and a Proposal for a Protocol in View of a Randomized Multicenter Study.Journal of clinical medicine · 2026Article
- Risk factors for hypoxia during general anesthesia bronchoscopy: a retrospective single-center cohort study.BMC pulmonary medicine · 2026Article
- The Role of High-Flow Nasal Cannula (HFNC) During Flexible Bronchoscopy in Adult Patients with Moderate Respiratory Dysfunctions: An Observational Study.Journal of clinical medicine · 2026Article
- Evaluation of high flow nasal cannulae during endobronchial ultrasound bronchoscopy (EBUS) in high anaesthetic risk patients: a monocentric prospective study.BMC anesthesiology · 2025Observational
- Reply to Gottlieb and Fuehner: Preoxygenation and High Flow Oxygen Therapy During Bronchoscopy Under Procedural Sedation in Patients with Central Airway Obstruction.Annals of the American Thoracic Society · 2025Article
- Effects of non-intubation anesthesia based on a fentanyl-reduced regimen on hypoxemia during bronchoscopy for older patients: study protocol for a randomized controlled trial.Journal of thoracic disease · 2025Article
- Article
- Combining high-flow nasal cannula oxygen therapy with repeated toilet bronchoscopies for respiratory failure due to excessive infected airway secretions: a case report and series from a non-intensive hospital ward.Frontiers in medicine · 2024Article
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFlexible bronchoscopy is one of the essential procedures for the diagnosis and treatment of pulmonary diseases. The purpose of this study was to identify the risk factors associated with the occurrence of hypoxia in adults undergoing flexible bronchoscopy under sedation.
methodsWe retrospectively analyzed 2,520 patients who underwent flexible bronchoscopy under sedation at our tertiary care university hospital in South Korea January 1, 2013-December 31, 2014. Hypoxia was defined as more than 5%-point reduction in the baseline percutaneous oxygen saturation (SpO2) or SpO2 <90% for >1 minute during the procedure.
resultsThe mean age was 64.7±13.5, and 565 patients developed hypoxia during the procedure. The mean sedation duration and midazolam dose for sedation were 31.1 minutes and 3.9 mg, respectively. The bivariate analysis showed that older age, a low forced expiratory volume in one second (FEV1), use of endobronchial ultrasound, the duration of sedation, and the midazolam dose were associated with the occurrence of hypoxia during the procedure, while the multivariate analysis found that age >60 (odds ratio [OR], 1.32), a low FEV1 (OR, 0.99), and a longer duration of sedation (>40 minutes; OR, 1.33) were significant risk factors.
conclusionThe findings suggest that patients older than age 60 and those with a low FEV1 tend to develop hypoxia during the bronchoscopy under sedation. Also, longer duration of sedation (>40 minutes) was a significant risk factor for hypoxia.
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