Airway management in out-of-hospital cardiac arrest is still debated. Several options exist: bag-valve-mask ventilation, supraglottic devices and endotracheal intubation. Intermediate and advanced airway management strategies could be useful devices to increase chest compression fraction. A previous study shows that early insertion of an i-gel device significantly increases chest compression fraction and enhances respiratory parameters. However, the compressions were found to be shallower in the experimental group using the i-gel device. Although, the shallower compressions found in the supraglottic airway device group did not appear to be linked to their provision in an over-the-head position, it is reasonable to assume that the addition of a feedback device to the use of an i-gel® device could fix this issue. The feedback devices seem to be able to provide a benefit, and allow deeper compressions / more often in the depth target. There is a mismatch between perceived and actual cardiopulmonary resuscitation performance supporting the need for such a feedback device's study.

Inclusion Criteria:

• Registered EMTs and paramedics actively working in any of the participating study trial centers will be eligible for inclusion.

Exclusion Criteria:

• Members of the study team
• EMTs will be randomly excluded if there are more EMTs than paramedics.

Data from the study will be available on Yareta as soon as the results are submitted for publication.

Once the final results will be submitted for publication

Free access

Data extraction will be fully automated and the statistician will not know the identity of the participants or the sequence they were allocated to.