Abstract P59: Effects Of Chest Compressions On The Time Taken For Intubation By Direct And Video Laryngoscopy: Two Manikin Studies
Objectives: There are few studies on whether chest compressions prolong intubation by direct and video laryngoscopy. The aim of our study was to evaluate the time taken for intubation (TTI) using the Macintosh laryngoscope (MAC) and two video laryngoscopes (VLs) [GlideScope® (GVL) and Airway Scope®(AWS)] with and without stopping chest compressions by novice and experienced intubators.
Methods: We performed two randomized crossover studies with a manikin model. In the first study, the TTI using the three laryngoscopes by twenty novice prehospital intubators using a manikin on the floor were measured with and without stopping chest compressions. Twenty-two experienced in-hospital intubators were also evaluated using a manikin on the hospital bed with the same manner in the second study.
Results: In the first study, chest compressions prolonged the TTI using the MAC (2.99 sec, p=0.06) and the GVL (2.04 sec, p=0.11). The AWS (15.46 sec) was significantly faster than the MAC (24.14 sec) or GVL (24.12 sec) during chest compressions for the novice intubators. In the second study, TTI using the AWS (1.64 sec, p=0.01) was delayed by chest compressions. The AWS (14.16 sec) was also significantly faster than GVL (20.82 sec) during chest compressions for the experienced intubators.
Conclusion: In a manikin model, chest compressions did not significantly affect the TTI using the MAC and the two VLs. Two VLs may be potentially useful adjuncts for advanced airway management during chest compressions for novice and experienced intubators. Further clinical investigations are necessary to confirm these findings.