Tomoko Fukada1, Yuri Tsuchiya2, Hiroko Iwakiri3, Makoto Ozaki4. 1. Department of Anesthesiology, Tokyo Women's Medical University, School of Medicine, 8-1 Kawadacho Shinjukuku, Tokyo 162-8666, Japan. Electronic address: tfukada@anes.twmu.ac.jp. 2. Department of Anesthesiology, Tokyo Women's Medical University, School of Medicine, 8-1 Kawadacho Shinjukuku, Tokyo 162-8666, Japan. Electronic address: cadorolily@ybb.ne.jp. 3. Department of Anesthesiology, Tokyo Women's Medical University, School of Medicine, 8-1 Kawadacho Shinjukuku, Tokyo 162-8666, Japan. Electronic address: mkthrk@ff.em-net.jp. 4. Department of Anesthesiology, Tokyo Women's Medical University, School of Medicine, 8-1 Kawadacho Shinjukuku, Tokyo 162-8666, Japan. Electronic address: mozaki@anes.twmu.ac.jp.
Abstract
STUDY OBJECTIVE: The study objective was to evaluate whether the single-use fiberoptic bronchoscope (FOB), Ambu aScope 3 Slim, was equally efficient compared with the conventional reusable FOB, Olympus LF-GP, for nasal fiberoptic intubation in a manikin. DESIGN: A randomized crossed-over study. SETTING: The postanesthesia care unit of Tokyo Women's Medical University Hospital. SUBJECTS:Twenty anesthesiologists who have experienced >50 one-lung ventilation thoracic surgery procedures were invited to participate in this study. INTERVENTIONS: A 6.5-mm internal diameter cuffed endotracheal tube (ET) was inserted into the manikin under Ambu aScope 3 Slim (group A) or Olympus LF-GP (group C) guidance. MEASUREMENTS: The following time parameters from the beginning of FOB insertion through a nostril were compared between groups: until vocal cord visualization (T1); visualization of the carina (T2); and proper ET placement, as confirmed by the distance of the ET tip to carina (T3). MAIN RESULTS:Mean (SD) T1 in group A and group C were 20 seconds (17 seconds) and 14 seconds (12 seconds), respectively (P= .1050). Mean (SD) T2 in group A and group C were 40 seconds (29 seconds) and 25 seconds (15 seconds), respectively (P= .0287). Mean (SD) T3 in group A and group C were 70 seconds (33 seconds) and 50 seconds (22 seconds), respectively (P= .0098). One case in group A had failed intubation CONCLUSIONS: The Ambu aScope 3 Slim required more time to intubate than the conventional reusable FOB. It requires more rigidity, similar to the conventional FOB for management of the difficult airway.
RCT Entities:
STUDY OBJECTIVE: The study objective was to evaluate whether the single-use fiberoptic bronchoscope (FOB), Ambu aScope 3 Slim, was equally efficient compared with the conventional reusable FOB, Olympus LF-GP, for nasal fiberoptic intubation in a manikin. DESIGN: A randomized crossed-over study. SETTING: The postanesthesia care unit of Tokyo Women's Medical University Hospital. SUBJECTS: Twenty anesthesiologists who have experienced >50 one-lung ventilation thoracic surgery procedures were invited to participate in this study. INTERVENTIONS: A 6.5-mm internal diameter cuffed endotracheal tube (ET) was inserted into the manikin under Ambu aScope 3 Slim (group A) or Olympus LF-GP (group C) guidance. MEASUREMENTS: The following time parameters from the beginning of FOB insertion through a nostril were compared between groups: until vocal cord visualization (T1); visualization of the carina (T2); and proper ET placement, as confirmed by the distance of the ET tip to carina (T3). MAIN RESULTS: Mean (SD) T1 in group A and group C were 20 seconds (17 seconds) and 14 seconds (12 seconds), respectively (P= .1050). Mean (SD) T2 in group A and group C were 40 seconds (29 seconds) and 25 seconds (15 seconds), respectively (P= .0287). Mean (SD) T3 in group A and group C were 70 seconds (33 seconds) and 50 seconds (22 seconds), respectively (P= .0098). One case in group A had failed intubation CONCLUSIONS: The Ambu aScope 3 Slim required more time to intubate than the conventional reusable FOB. It requires more rigidity, similar to the conventional FOB for management of the difficult airway.
Authors: Carla R Lamb; Ekaterina Yavarovich; Vincent Kang; Elliot L Servais; Lori B Sheehan; Sara Shadchehr; James Weldon; Matthew J Rousseau; Gregory P Tirrell Journal: BMC Pulm Med Date: 2022-05-12 Impact factor: 3.320