Accuracy of a feedback device for cardiopulmonary resuscitation on a dental chair

Background Conflicting studies exist about the effectiveness of cardiopulmonary resuscitation (CPR) on a dental chair. In some situations, dental surgeons are obliged to perform CPR with the patient on the chair. Feedback devices are supposed to guide the compression depth in order to improve the quality of CPR, but some devices are based on an accelerometer that can theoretically report erroneous results because of the lack of rigidity of a dental chair. Objective The aim of this study was to evaluate the accuracy of these devices to guide chest compressions on a dental chair. Methods A prospective, randomised, crossover, equivalence/non-inferiority study was conducted to compare the values of compression depths provided by the feedback device (Real CPR Help®, delivered by Zoll