Abstract 16229: The Performance of Dispatcher Assisted Cardiopulmonary Resuscitation Among Elderly Laypersons is Inferior Compared to Young Laypersons: A Simulation Study
Introduction: Standardized instructions in dispatcher assisted CPR (DA-CPR) increase the rate and quality of bystander CPR. Most cardiac arrests occur in private homes and the most likely bystander to initiate CPR is an elderly layperson. Studies on elderly performing DA-CPR are sparse. The aim of this study was to compare the performance of DA-CPR between elderly and young laypersons.
Hypothesis: DA-CPR performance is inferior among elderly laypersons compared to young laypersons.
Methods: The study was performed in two substudies. Substudy 1 compared the performance of DA-CPR between elderly (>65 years) and young (18 - 40 years) laypersons. Substudy 2 evaluated the attainable level of CPR skills after attending a standardized CPR course. CPR was performed in a mock cardiac arrest scenario in both substudies. CPR quality data was obtained from the manikin and video recordings. CPR performance was evaluated by two assessors. The primary endpoint was chest compression depth during DA-CPR. Secondary endpoints included chest compression rate, time to first compression and hands-off time.
Results: In total, 120 laypersons were included. Substudy 1 (DA-CPR): Elderly laypersons performed significantly shallower (mean (SD): 39 (19) mm vs. 56 (14) mm, p<0.001) and slower (median (IQR): 84 (74 - 107) min-1 vs. 107 (97 - 112) min-1, p<0.001) chest compressions compared to young laypersons. Elderly laypersons had significantly longer time to first compression (mean (SD): 104 (38) sec vs. 71 (11) sec, p<0.001) and significantly more hands-off time pr. minute (median (IQR): 5 (2 - 10) sec vs. 0 (0 - 1) sec, p<0.001) than young laypersons. Substudy 2 (End-of-course assessment): Elderly laypersons performed significantly shallower (mean (SD): 50 (14) mm vs. 64 (8) mm, p<0.001) and slower (mean (SD): 93 (18) min-1 vs. 111 (11) min-1, p<0.001) chest compressions compared to young laypersons.
Conclusions: Performance of DA-CPR is inferior among elderly laypersons compared to young laypersons. The study found an acceptable quality of CPR skills among both elderly and young laypersons after CPR-training.
- Cardiac Arrest
- Bystander CPR
- Dispatcher assisted Cardiopulmonary Resuscitation
- Pre-arrival instructions
Author Disclosures: M.A. Nebsbjerg: None. S.E. Rasmussen: None. K. Bjørnshave: None. L.Q. Krogh: None. K. Krogh: None. J.A. Povlsen: None. I.S. Riddervold: None. T. Grøfte: None. H. Kirkegaard: None. B. Løfgren: None.
- © 2015 by American Heart Association, Inc.