Efficacy Of High Flow Nasal Cannula Oxygenation Versus Apnoeic Oxygenation In Patients Undergoing Rigid Bronchoscopy: A Prospective Randomized Controlled Study
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Date
2025-06
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Indian Society for Health and Advanced Research
Abstract
Background And Aim: Apnoeic oxygenation during rigid bronchoscopy poses unique challenges due to shared airway access and potential for rapid desaturation. High Flow Nasal Cannula (HFNC) offers an advanced oxygenation method that may provide superior outcomes compared to conventional apnoeic oxygenation via the bronchoscope's side port. This study aimed to assess and compare the efficacy of HFNC versus side-port apnoeic oxygenation in patients undergoing diagnostic bronchoscopy and foreign body removal. A prospective randomizedMaterial & Methods: controlled trial was conducted on 110 patients (aged 18–60 years, ASA I–III) at a tertiary care centre from August 2023 to July 2024. Participants were randomized into two groups: Group H received HFNC at 30 L/min (100% FiO?), and Group A received 100% FiO? at 6 L/min via the bronchoscope's side port. SpO?, EtCO?, EtO?, and number of desaturation-related interruptions were recorded at defined intervals. Data were analyzed using SPSS version 26 with p < 0.05 considered significant. Group H demonstrated significantly higher SpO? values throughoutResults: the intraoperative period (p < 0.0001) and had no procedural interruptions, unlike Group A which experienced 32 desaturation-related interruptions. EtCO? was significantly lower in Group H postoperatively, indicating better CO? clearance. EtO? was also significantly higher in Group H immediately post-procedure (p = 0.0001). The mean procedure duration was shorter in Group H (12.35 ± 1.93 min) compared to Group A (13.67 ± 1.73 min, p < 0.001). High Flow Nasal Cannula oxygenation provides superior apnoeic oxygenation, better intraoperativeConclusion: oxygen saturation, fewer interruptions, and improved gas exchange in patients undergoing rigid bronchoscopy. It should be considered a preferred modality in shared airway procedures requiring apnoeic oxygenation
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High Flow Nasal Cannula, Rigid Bronchoscopy, Apnoeic Oxygenation, EtCO?, SpO?, Foreign Body Removal
Citation
S Manisha, Bhatt Swati A, S Kavya., M Uma.. Efficacy Of High Flow Nasal Cannula Oxygenation Versus Apnoeic Oxygenation In Patients Undergoing Rigid Bronchoscopy: A Prospective Randomized Controlled Study. International Journal of Scientific Research. 2025 Jun; 14(6): 11-13