Ability of paramedics to perform endotracheal intubation during continuous chest compressions: a randomized cadaver study comparing Pentax AWS and Macintosh laryngoscopes

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• 作者：Zenon Truszewski ; PhD ; MD^a ; Lukasz Czyzewski ; PhD ; RN^b ; Jacek Smereka ; PhD ; MD^c ; Paweł Krajewski^d ; Marcin Fudalej ; PhD ; MD^d ; Marcin Madziala ; MSc^a ; Lukasz Szarpak ; PhD ; EMT-P ; DPH^a ; ^{lukasz.szarpak@gmail.com" class="auth_mail" title="E-mail the corresponding author}
• 刊名：The American Journal of Emergency Medicine
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：34
• 期：9
• 页码：1835-1839
• 全文大小：644 K

文摘

The aim of the trial was to compare the time parameters for intubation with the use of the Macintosh (MAC) laryngoscope and Pentax AWS-S100 videolaryngoscope (AWS; Pentax Corporation, Tokyo, Japan) with and without chest compression (CC) by paramedics during simulated cardiopulmonary resuscitation in a cadaver model.

Methods

This was a randomized crossover cadaver trial. Thirty-five paramedics with no experience in videolaryngoscopy participated in the study. They performed intubation in two emergency scenarios: scenario A, normal airway without CC; scenario B, normal airway with continuous CC.

Results

The median time to first ventilation with the use of the AWS and the MAC was similar in scenario A: 25 (IQR, 22-27) seconds vs. 24 (IQR, 22.5-26) seconds (P = .072). A statistically significant difference in TTFV between AWS and MAC was noticed in scenario B (P = .011). In scenario A, the first endotracheal intubation (ETI) attempt success rate was achieved in 97.1% with AWS compared with 94.3% with MAC (P = .43). In scenario B, the success rate after the first ETI attempt with the use of the different intubation methods varied and amounted to 88.6% vs. 77.1% for AWS and MAC, respectively (P = .002).

Conclusions

The Pentax AWS offered a superior glottic view as compared with the MAC laryngoscope, which was associated with a higher intubation rate and a shorter intubation time during an uninterrupted CC scenario. However, in the scenario without CC, the results for AWS and MAC were comparable.