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Objective:To evaluate the effect of combined teaching of optical laryngoscope and general laryngoscope on anesthesia undergraduate practice.Methods:A total of 40 anesthesia undergraduate students were randomly divided into group A (using the optical laryngocope only in the first month and the general laryngoscope only in the second month, n=20), and group B (using the general laryngocope only in the first month and the optical laryngoscope only in the second month, n=20). The teaching effect was evaluated through the first month and the second month of tracheal intubation assessment and questionnaire survey results. SPSS 23.0 was used for t test and chi-square test. Results:In the first month, the success rate was 90% in group A and 60% in group B, which showed that the success rate of group B was lower, with significant differences ( P < 0.05). The time for tracheal intubation in group A was (61.8±5.0) s, and that in the group B was (83.0±4.9) s, showing that the time of group B was longer, with significant differences ( P < 0.05). The complications in group A was 5%, and that in group B was 14%, showing that the group B had more cases of implications, with significant differences ( P < 0.05). In the second month, there was no significant difference in the one-time success rate, the time for tracheal intubation, and complications between the two groups ( P > 0.05). There was no significant difference in one-time success rate and complications between groups. Both groups showed that the time for general laryngoscope intubation was longer, with significant differences ( P < 0.05). All of the students believed that applying optical laryngoscope teaching was beneficial and could enhance the interest of learning, and the combination of the two methods was better. Conclusion:Using the optical laryngoscope first and then the general laryngoscope teaching is more beneficial for students to master the two methods of tracheal intubation, improve the success rate, reduce complications, and cultivates their self-confidence.
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Objective To explore the application of Airtraq(R) optical laryngoscope combined with bronchofibroscope for endotracheal in-tubation (EI) in patients with cervical spine injury (CSI). Methods 50 patients with CSI undergoing spine surgery under combined general anesthesia were randomly assigned to two groups, group A (n=25) received EI by using Airtraq(R) optical laryngoscope and group AF (n=25) received EI by using Airtraq(R) optical laryngoscope combined with bronchofibroscope. The intubation time (IT), success rate of single intuba-tion (SRSI), hemodynamic changes in endotracheal intubation, and complications related to EI were observed. Results IT was significantly longer in group A than in group AF (P0.05). Conclusion Airtraq(R) optical laryngoscope combined with bronchofibroscope would be safely and effectively used for EI in patients with CSI.
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Objective To summarize the experiences usinG the Airtraq optical larynGoscope( AL)in the manaGement of unanticipated difficult endotracheal intubation. Methods Twenty surGical patients with General anesthesia usinG tracheal intubation were induced with propofol-remifentanyl and injected with atracuriun (0. 5 mG/kG). And then,larynGoscope with Macintosh directly throuGh oral tracheal intubation,and located the tracheal intubation by end tidal carbon dioxide detection method. AttemptinG oral tracheal intubation with Macintosh larynGoscope were failed for twice time,the AL was used to accomplish tracheal intubation. Results In all the patients,tracheal intubations with AL as a rescue intubation device Got clear GradeⅠCormack-Lehane Glottis exposure,with once-time successful intubation attemptinG in l8 patients. But in other 2 patients,tracheal intubations were accomplished by combined use of a fibreoptic bronchoscope which GuidinG tracheal tube into the Glottis throuGh AL after tracheal tube slidinG backward into the esophaGus repeatedly. DurinG the intubation attempts,interval mask ventilation were Given maintaininG SaO2≥90% in all patients. Conclusion AL offers an new effective technique as a rescue airway device in deal with unanticipated difficult tracheal intubation.
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BACKGROUND: Airway management in the emergency department is a critical intervention that requires both standard techniques and rescue techniques to ensure a high rate of success. Recently, video laryngoscope (VL) systems have become increasingly common in many large urban Eds, but these systems may exceed the budgets of smaller rural Eds and EMS services and the Airtraq optical laryngoscope (OL) may provide an effective, low-cost alternative. We hypothesized that laryngeal view and time to endothracheal tube placement for OL and VL intubations would not be significantly different. METHODS: This was a prospective, crossover trial. Setting: University-based emergency medicine residency program procedure laboratory utilizing lightly embalmed cadavers. Subjects:PGY1-3 emergency medicine residents. The study subjects performed timed endotracheal intubations alternately using the OL and VL. The subjects then rated the Cormack-Lehane laryngeal view for each device. Statistical analysis: Mean time to intubation and the mean laryngeal view score were calculated with 95％ confidence intervals and statistical significance was determined by Student's t test. RESULTS: Fourteen subjects completed the study. The average laryngeal view achieved with the OL vs. the VL was not significantly different, with Cormack-Lehane grade of 1.14 vs. 1.07, respectively. Time to endotracheal intubation, however, was significantly different (P<0.001) with the average time to intubation for the OL 25.49 seconds (95％ CI: 17.95-33.03) and the VL 13.41 seconds (10.27-16.55). CONCLUSION: The Airtraq OL and the Storz VL yielded similar laryngeal views in the lightly embalmed cadaver model. Time to endotracheal tube placement, however, was less for the VL.
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BACKGROUND: Macintosh laryngoscopic intubation is a lifesaving procedure, but a difficult skill to learn. The Airtraq optical laryngoscope (AOL) is a novel intubation device with advantages over the direct laryngoscope for untrained personnel in a manikin study. We compared the effectiveness of AOL with Macintosh laryngoscope for tracheal intubation by novice personnel. METHODS: We selected 37 medical students with no prior tracheal intubation experience and educated them on using both laryngoscopes. Seventy-four patients were randomly divided into two groups (group A: AOL, group M: Macintosh laryngoscope). We recorded the tracheal intubation success rate, intubation time, number of attempts, intubation difficulty scale, and adverse effects. RESULTS: The total success rate was similar in the two groups, but the success rate at first attempt was higher in group A (P < 0.01). Group A also showed reduced duration and attempts at intubation, as well as adverse effects such as oral cavity injury. Additionally, participant reports indicated that using the AOL was easier than the Macintosh laryngoscope (P < 0.01). CONCLUSIONS: The AOL is a more effective instrument for tracheal intubation than Macintosh laryngoscope when used by novice personnel.