Effects of Feedback on Chest Compression Quality: A Randomized Simulation Study.

Abstract

Our aim for this study was to test whether visual and verbal feedback compared with instructor-led feedback improve the quality of pediatric cardiopulmonary resuscitation (CPR). There were 653 third-year medical students randomly assigned to practice pediatric CPR on 1 of 2 manikins (infant and adolescent; <i>n</i> = 344 and <i>n</i> = 309, respectively). They were further randomly assigned to 1 of 3 feedback groups: The instructor feedback (IF) group (<i>n</i> = 225) received traditional, instructor-led feedback without any additional feedback device. The device feedback (DF) group (<i>n</i> = 223) received real-time visual feedback from a feedback device. The instructor and device feedback (IDF) group (<i>n</i> = 205) received verbal feedback from an instructor who continuously reviewed the trainees' performance using the feedback device. After the training, participants' CPR performance was assessed on the same manikin while no feedback was being provided. For the primary outcome of total compression score, participants in the DF and IDF groups performed similarly, with both groups showing scores significantly (<i>P</i> < .001) better than those of the IF group. The same findings held for correct hand position and the proportion of complete release. For compression rate, the DF group was at the higher end of the guideline for 100 to 120 chest compressions per minute compared with the IF and IDF groups (both <i>P</i> < .001). No effect of feedback on compression depth was found. Chest compression performance significantly improved with both visual and verbal feedback compared with instructor-led feedback. Feedback devices should be implemented during pediatric resuscitation training to improve resuscitation performance.