Original Articles
Vol. 21 No. 3 (2025)
https://doi.org/10.4081/ecj.2025.13736
Feedback devices may not improve chest compression depth during simulated out-of-hospital cardiac arrest: a multicenter randomized controlled trial
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All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Received: 13 February 2025
Accepted: 5 May 2025
Published: 9 June 2025
Accepted: 5 May 2025
Published: 9 June 2025
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Out-of-hospital cardiac arrest survival remains low, with highquality Cardiopulmonary Resuscitation (CPR) essential to improving outcomes. The i-gel® device allows continuous compressions but has been associated with reduced compression depth. While real-time feedback devices can improve CPR quality, their effectiveness alongside supraglottic airways remains untested. This multicenter, randomized, simulation-based superiority trial evaluated whether using a feedback device during CPR with i-gel® improves the proportion of compressions within the recommended depth range (5–6 cm). Between January and June 2023, 68 participants from eight EMS agencies formed 34 teams, randomized to either control (no feedback) or experimental (with feedback). All teams performed 10-minute adult CPR scenarios on a manikin in ventricular fibrillation, with immediate i-gel® insertion. The primary outcome was the proportion of compressions within the target depth range of 5 to 6 cm. Secondary outcomes included usual CPR and ventilation metrics. No significant differences were found in correct compression depth between control and feedback group (68.6% [95%CI 57.2-80.1] vs 60.5% [95%CI 50.5-70.5]). However, chest recoil was significantly better in the control group (95.9% vs 90.2%, p=0.024). Other CPR and ventilation metrics did not differ significantly. In conclusion, the feedback device did not significantly improve compression depth and was associated with slightly worse chest recoil.
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How to Cite
Feedback devices may not improve chest compression depth during simulated out-of-hospital cardiac arrest: a multicenter randomized controlled trial. (2025). Emergency Care Journal, 21(3). https://doi.org/10.4081/ecj.2025.13736
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