Skills among young and elderly laypersons during simulated dispatcher assisted CPR CPR and after CPR CPR training

摘要

Background Dispatcher assisted cardiopulmonary resuscitation ( DA ‐ CPR ) increase the rate of bystander CPR . The aim of the study was to compare the performance of DA ‐ CPR and attainable skills following CPR training between young and elderly laypersons. Methods Volunteer laypersons (young: 18–40 years; elderly: 65 years) participated. Single rescuer CPR was performed in a simulated DA ‐ CPR cardiac arrest scenario and after CPR training. Data were obtained from a manikin and from video recordings. The primary endpoint was chest compression depth. Results Overall, 56 young (median age: 26, years since last CPR training: 6) and 58 elderly (median age: 72, years since last CPR training: 26.5) participated. Young laypersons performed deeper (mean ( SD ): 56 (14) mm vs. 39 (19) mm, P 0.001) and faster (median (25th–75th percentile): 107 (97–112) per min vs. 84 (74–107) per min, P 0.001) chest compressions compared to elderly. Young laypersons had shorter time to first compression (mean ( SD ): 71 (11) seconds vs. 104 (38) seconds, P 0.001) and less hands‐off time (median (25th–75th percentile): 0 (0–1) seconds vs. 5 (2–10) seconds, P 0.001) than elderly. After CPR training chest compressions were performed with a depth (mean ( SD ): 64 (8) mm vs. 50 (14) mm, P 0.001) and rate (mean ( SD ): 111 (11) per min vs. 93 (18) per min, P 0.001) for young and elderly laypersons respectively. Conclusion Despite long CPR retention time for both groups, elderly laypersons had longer retention time, and performed inadequate DA ‐ CPR compared to young laypersons. Following CPR training the attainable CPR level was of acceptable quality for both young and elderly laypersons.