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Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators

BACKGROUND: We aimed to investigate the effect of automated external defibrillator (AED) feedback mechanisms on survival in out‐of‐hospital cardiac arrest (OHCA) victims. In addition, we investigated converting rates in patients with shockable rhythms according to AED shock waveforms and energy leve...

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Autores principales: Agerskov, M., Hansen, M. B., Nielsen, A. M., Møller, T. P., Wissenberg, M., Rasmussen, L. S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5698742/
https://www.ncbi.nlm.nih.gov/pubmed/28901546
http://dx.doi.org/10.1111/aas.12992
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author Agerskov, M.
Hansen, M. B.
Nielsen, A. M.
Møller, T. P.
Wissenberg, M.
Rasmussen, L. S.
author_facet Agerskov, M.
Hansen, M. B.
Nielsen, A. M.
Møller, T. P.
Wissenberg, M.
Rasmussen, L. S.
author_sort Agerskov, M.
collection PubMed
description BACKGROUND: We aimed to investigate the effect of automated external defibrillator (AED) feedback mechanisms on survival in out‐of‐hospital cardiac arrest (OHCA) victims. In addition, we investigated converting rates in patients with shockable rhythms according to AED shock waveforms and energy levels. METHODS: We collected data on OHCA occurring between 2011 and 2014 in the Capital Region of Denmark where an AED was applied prior to ambulance arrival. Patient data were obtained from the Danish Cardiac Arrest Registry and medical records. AED data were retrieved from the Emergency Medical Dispatch Centre (EMDC) and information on feedback mechanisms, energy waveform and energy level was downloaded from the applied AEDs. RESULTS: A total of 196 OHCAs had an AED applied prior to ambulance arrival; 62 of these (32%) provided audio visual (AV) feedback while no feedback was provided in 134 (68%). We found no difference in return of spontaneous circulation (ROSC) at hospital arrival according to AV‐feedback; 34 (55%, 95% confidence interval (CI) [13–67]) vs. 72 (54%, 95% CI [45–62]), P = 1 (odds ratio (OR) 1.1, 95% CI [0.6–1.9]) or 30‐day survival; 24 (39%, 95% CI [28–51]) vs. 53 (40%, 95% CI [32–49]), P = 0.88 (OR 1.1 (95% CI [0.6–2.0])). Moreover, we found no difference in converting rates among patients with initial shockable rhythm receiving one or more shocks according to AED energy waveform and energy level. CONCLUSIONS: No difference in survival after OHCA according to AED feedback mechanisms, nor any difference in converting rates according to AED waveform or energy levels was detected.
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spelling pubmed-56987422017-11-30 Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators Agerskov, M. Hansen, M. B. Nielsen, A. M. Møller, T. P. Wissenberg, M. Rasmussen, L. S. Acta Anaesthesiol Scand Emergency Medicine BACKGROUND: We aimed to investigate the effect of automated external defibrillator (AED) feedback mechanisms on survival in out‐of‐hospital cardiac arrest (OHCA) victims. In addition, we investigated converting rates in patients with shockable rhythms according to AED shock waveforms and energy levels. METHODS: We collected data on OHCA occurring between 2011 and 2014 in the Capital Region of Denmark where an AED was applied prior to ambulance arrival. Patient data were obtained from the Danish Cardiac Arrest Registry and medical records. AED data were retrieved from the Emergency Medical Dispatch Centre (EMDC) and information on feedback mechanisms, energy waveform and energy level was downloaded from the applied AEDs. RESULTS: A total of 196 OHCAs had an AED applied prior to ambulance arrival; 62 of these (32%) provided audio visual (AV) feedback while no feedback was provided in 134 (68%). We found no difference in return of spontaneous circulation (ROSC) at hospital arrival according to AV‐feedback; 34 (55%, 95% confidence interval (CI) [13–67]) vs. 72 (54%, 95% CI [45–62]), P = 1 (odds ratio (OR) 1.1, 95% CI [0.6–1.9]) or 30‐day survival; 24 (39%, 95% CI [28–51]) vs. 53 (40%, 95% CI [32–49]), P = 0.88 (OR 1.1 (95% CI [0.6–2.0])). Moreover, we found no difference in converting rates among patients with initial shockable rhythm receiving one or more shocks according to AED energy waveform and energy level. CONCLUSIONS: No difference in survival after OHCA according to AED feedback mechanisms, nor any difference in converting rates according to AED waveform or energy levels was detected. John Wiley and Sons Inc. 2017-09-13 2017-11 /pmc/articles/PMC5698742/ /pubmed/28901546 http://dx.doi.org/10.1111/aas.12992 Text en © 2017 The Authors. Acta Anaesthesiologica Scandinavica published by John Wiley & Sons Ltd on behalf of Acta Anaesthesiologica Scandinavica Foundation This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial (http://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Emergency Medicine
Agerskov, M.
Hansen, M. B.
Nielsen, A. M.
Møller, T. P.
Wissenberg, M.
Rasmussen, L. S.
Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators
title Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators
title_full Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators
title_fullStr Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators
title_full_unstemmed Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators
title_short Return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators
title_sort return of spontaneous circulation and long‐term survival according to feedback provided by automated external defibrillators
topic Emergency Medicine
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5698742/
https://www.ncbi.nlm.nih.gov/pubmed/28901546
http://dx.doi.org/10.1111/aas.12992
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