Abstract 52: A 2-Year Analysis of Patient Outcomes from Sudden Cardiac Arrest in a Public Setting Using Public Access Defibrillators
Objective: The majority of defibrillation efficacy studies in the last decade have taken place in hospital or by EMS. These studies of biphasic defibrillators have yielded very positive first shock success rates as well as outcomes. However with the advent of public access defibrillators and in addressing the “early access” link in the “chain of survival” little evaluation of how these devices actually perform in the field has been completed. The objective of this retrospective analysis was to determine 1st shock success and survival to admission for this group of patients.
Methods: Worldwide patient data collection was initiated in October 2012 in accordance with the Declaration of Helsinki. Each patient record was anonymised prior to data entry and analysis. Each entry was subject to audit prior to analysis. Age, gender, location of arrest, 1st shock success and patient outcome were collected for each patient. If this data was not available the event was excluded for the analysis. In addition, response time, pre-shock CPR duration, level of training and each patient’s medical history was captured if available.
Findings: Data from a total of 454 patients were analysed. Patient ages ranged from 7 to 100 years. A total of 26.9% of arrests recorded took place in the home, of those 54.2% were male and 45.8% were female. In terms of shock success, 197 patients had a shockable rhythm (43.4%) and 162 of those achieved a first shock success (82.2%). Number of defibrillator operators trained totalled 63.5%. Finally 74 patients survived to admission (37.6%). Patient data was obtained multiple geographical locations including the US, UK, Ireland, Amsterdam, Germany, Scandanavia and Singapore.
Conclusions: These results are comparable to previous in-hospital studies and is further evidence of the efficacy of low energy biphasic waveforms combined with an inituitive design which enables successful administration of defibrillation and CPR by minimally trained operators. Continued use of these devices by minimally or untrained operators highlights the need for continued maintenance and increased awareness of sudden cardiac arrest.
Author Disclosures: R. Di Maio: None. H. Torney: None. P. O’Hare: None. C. McIntyre: None. R. Koster: None. J. Adgey: None.
- © 2014 by American Heart Association, Inc.