Abstract 32: Successful Use of Supraglottic Airway Devices by Surf Lifeguards: A Randomized Comparison of 3 Different Devices
Objective: During resuscitation of a drowning victim, adequate ventilations are of paramount importance. The feasibility of using supraglottic airway devices (SAD) among surf lifeguards is unexplored. We aimed to compare time to first effective ventilation and ventilation quality using three different SAD among surf lifeguards.
Methods: Surf lifeguards in active service over the age of 18 years were invited to participate. Participants were trained to Portex® Soft Seal® Laryngeal Mask (Soft Seal), Intersurgical® I-gel supraglottic airway (I-gel) and Ambu®AuraOnceTM (AuraOnce). Participants inserted and provided five ventilations using each of the SADs in randomized order. Data were obtained from a resuscitation manikin and video recordings.
Results: A total of 40 surf lifeguards (11 female, 29 male, mean age: 24.7 years) participated. Only three participants failed to obtain any effective ventilation (one using I-gel and two using AuraOnce). The time to first effective ventilation (visible chest rise) was significantly reduced using I-gel (15.6+/-3.3 s) compared to Soft Seal (35.2+/-7.2 s, p<0.001) and AuraOnce (35.2+/-8.5 s, p<0.001) whereas no difference was detected when comparing Soft Seal to AuraOnce. On-going chest compressions did not delay time to ventilation. The number of effective ventilations was higher using Soft Seal (100%) compared to AuraOnce (92%, p<0.0001), while no significant differences were observed when comparing I-gel (97 %) to Soft Seal and AuraOnce. Soft Seal delivered a higher tidal volume, (0.65+/-0.14 L) compared to I-gel (0.50+/-0.16 L, p<0.001) and AuraOnce (0.39+/-0.19 L, p<0.001). The inspiratory time was longer with Soft Seal (0.61+/-0.17 s) compared to I-gel (0.47+/-1.3 s, p<0.001) and AuraOnce (0.42+/-0.13 s, p<0.001). No differences were found comparing I-gel and to AuraOnce on tidal volume and inspiratory time. The majority of surf lifeguard (85%) listed I-gel as their preferred SAD.
Conclusion: Surf lifeguards can successfully use SADs. Time to ventilation was not delayed due to on-going chest compressions. I-gel was superior compared to Soft Seal and AuraOnce in significantly reducing time to first effective ventilation and delivering tidal volumes within the recommended range.
- © 2012 by American Heart Association, Inc.