Comparison of Macintosh and Airtraq™ laryngoscopes in obese patients placed in the ramped position.
This study compared intubation conditions produced by the Macintosh and Airtraq™ laryngoscopes when used in obese patients in the ramped position. One hundred and thirty-two patients having bariatric surgery were placed in the ramped position and randomly assigned to have their tracheas intubated using either the Macintosh (n=64) or an Airtraq (n=68) laryngoscope. Mean (SD) intubation times were 37 (23) s and 14 (3) s for Macintosh and Airtraq, respectively (p<0.0001). Compared with the Macintosh laryngoscope, the Airtraq laryngoscope provided an improved vocal cord view as assessed by the Cormack and Lehane score (number of patients with Cormack-Lehane scores of 1/2/3/4/37/20/4/3 for the Macintosh, and 65/3/0/0 for the Airtraq laryngoscopes, p<0.0001). One patient in the Macintosh group had a failed intubation and intubation was achieved with the Airtraq. For obese patients in ramped position, Airtraq affords faster tracheal intubation than the Macintosh laryngoscope.
Serviço de Cirurgia Bariátrica do Hospital do Coração de Balneário Camboriu, Camboriu, Brazil. deranieri@terra.com.br
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D000328:Adult; D001794:Blood Pressure / Q000502:physiology; D015992:Body Mass Index; D004562:Electrocardiography; D005260:Female; D005931:Glottis / Q000033:anatomy & histology; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D006993:Hypnotics and Sedatives; D007442:Intubation, Intratracheal; D020704:Laryngoscopes; D007828:Laryngoscopy / Q000379:methods*; D008297:Male; D009333:Neck / Q000033:anatomy & histology; D009765:Obesity / Q000150:complications*; D010092:Oximetry; D010100:Oxygen / Q000097:blood; D011187:Posture / Q000502:physiology; D017211:Treatment Failure; D014827:Vocal Cords / Q000033:anatomy & histology
D006993:Hypnotics and Sedatives; D010100:Oxygen