Cardiac arrest diagnostic accuracy of 9-1-1 dispatchers: a prospective multi-center study

Resuscitation
Christian VaillancourtIan G Stiell

Abstract

We sought to determine the ability of 9-1-1 dispatchers to accurately determine the presence of out-of-hospital cardiac arrest (OOHCA) over the telephone, and to determine the frequency with which CPR instructions are initiated and chest compressions delivered in patients not in cardiac arrest. We conducted a multi-center, prospective cohort study of adult OOHCA patients not witnessed by EMS for which resuscitation was attempted. Dispatchers were not health care professionals and received 6 weeks of training followed by a 6-month preceptorship. We reviewed 9-1-1 call digital recordings for all unconscious patients for which the possibility of cardiac arrest was considered using a piloted standardized data collection sheet. We reviewed 2260 recordings occurring between January 2008 and October 2009. Among those, 1536 were confirmed OOHCA, and 724 were not. Among the 1536 confirmed OOHCA cases, 1012 were recognized by dispatchers and 524 were not. Among the 724 cases not in cardiac arrest, dispatchers suspected cardiac arrest was present in 490 and absent in 234. OOHCA diagnostic accuracy characteristics were: sensitivity 65.9% (95% CI 63.5-68.2%), specificity 32.3% (95% CI 29.0-35.9%), PPV 67.4%, and NPV 30.9%. Dispatchers belie...Continue Reading

References

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Citations

Jul 25, 2015·Resuscitation·Tomonari ShimamotoUNKNOWN Utstein Osaka Project
Feb 2, 2017·Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine·Søren ViereckFreddy Knudsen Lippert
Feb 25, 2020·Circulation·Michael Christopher KurzUNKNOWN American Heart Association Advocacy Coordinating Committee
Mar 3, 2017·Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine·Thea Palsgaard MøllerFreddy K Lippert
Jan 1, 2016·Notfall & Rettungsmedizin·M MaierM Baubin
Nov 30, 2019·Prehospital and Disaster Medicine·Julian G MappUNKNOWN Prehospital Research and Innovation in Military and Expeditionary Environments (PRIME) Research Group
Nov 11, 2018·Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine·K Bohm, L Kurland
Jul 17, 2020·Resuscitation·Madison SchwarzkophMickey Eisenberg
Mar 23, 2021·Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine·Thea Palsgaard MøllerDoris Østergaaard
Mar 29, 2021·Resuscitation·Robert GreifKoenraad G Monsieurs
Mar 29, 2021·Resuscitation·Federico SemeraroKoenraad G Monsieurs
May 27, 2021·Clinical and Experimental Emergency Medicine·Mi Jin LeeUNKNOWN Steering Committee of 2020 Korean Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care
Jun 8, 2021·Notfall & Rettungsmedizin·Robert GreifKoenraad G Monsieurs

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