Comparison of out-of-hospital cardiac arrest occurring before and after paramedic arrival: epidemiology, survival to hospital discharge and 12-month functional recovery

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Abstract

Background: Despite immediate resuscitation, survival rates following out-of-hospital cardiac arrests (OHCA) witnessed by emergency medical service (EMS) are reportedly low. We sought to compare survival and 12-month functional recovery outcomes for OHCA occurring before and after EMS arrival. Methods: Between 1st July 2008 and 30th June 2013, we included 8648 adult OHCA cases receiving an EMS attempted resuscitation from the Victorian Ambulance Cardiac Arrest Registry, and categorised them into five groups: bystander witnessed cases. ?. bystander CPR, unwitnessed cases. ?. bystander CPR, and EMS witnessed cases. The main outcomes were survival to hospital and survival to hospital discharge. Twelve-month survival with good functional recovery was measured in a sub-group of patients using the Extended Glasgow Outcome Scale (GOSE). Results: Baseline and arrest characteristics differed significantly across groups. Unadjusted survival outcomes were highest among bystander witnessed cases receiving bystander CPR and EMS witnessed cases, however outcomes differed significantly between these groups: survival to hospital (46.0 vs. 53.4 respectively, p
Original languageEnglish
Pages (from-to)50 - 57
Number of pages8
JournalResuscitation
Volume89
Issue numberC
DOIs
Publication statusPublished - 2015

Cite this

@article{b1b3809918954ddb820c71605b42547f,
title = "Comparison of out-of-hospital cardiac arrest occurring before and after paramedic arrival: epidemiology, survival to hospital discharge and 12-month functional recovery",
abstract = "Background: Despite immediate resuscitation, survival rates following out-of-hospital cardiac arrests (OHCA) witnessed by emergency medical service (EMS) are reportedly low. We sought to compare survival and 12-month functional recovery outcomes for OHCA occurring before and after EMS arrival. Methods: Between 1st July 2008 and 30th June 2013, we included 8648 adult OHCA cases receiving an EMS attempted resuscitation from the Victorian Ambulance Cardiac Arrest Registry, and categorised them into five groups: bystander witnessed cases. ?. bystander CPR, unwitnessed cases. ?. bystander CPR, and EMS witnessed cases. The main outcomes were survival to hospital and survival to hospital discharge. Twelve-month survival with good functional recovery was measured in a sub-group of patients using the Extended Glasgow Outcome Scale (GOSE). Results: Baseline and arrest characteristics differed significantly across groups. Unadjusted survival outcomes were highest among bystander witnessed cases receiving bystander CPR and EMS witnessed cases, however outcomes differed significantly between these groups: survival to hospital (46.0 vs. 53.4 respectively, p",
author = "Ziad Nehme and Andrew, {Emily P} and Bernard, {Stephen Anthony} and Smith, {Karen Louise}",
year = "2015",
doi = "10.1016/j.resuscitation.2015.01.012",
language = "English",
volume = "89",
pages = "50 -- 57",
journal = "Resuscitation",
issn = "0300-9572",
publisher = "Elsevier",
number = "C",

}

TY - JOUR

T1 - Comparison of out-of-hospital cardiac arrest occurring before and after paramedic arrival: epidemiology, survival to hospital discharge and 12-month functional recovery

AU - Nehme, Ziad

AU - Andrew, Emily P

AU - Bernard, Stephen Anthony

AU - Smith, Karen Louise

PY - 2015

Y1 - 2015

N2 - Background: Despite immediate resuscitation, survival rates following out-of-hospital cardiac arrests (OHCA) witnessed by emergency medical service (EMS) are reportedly low. We sought to compare survival and 12-month functional recovery outcomes for OHCA occurring before and after EMS arrival. Methods: Between 1st July 2008 and 30th June 2013, we included 8648 adult OHCA cases receiving an EMS attempted resuscitation from the Victorian Ambulance Cardiac Arrest Registry, and categorised them into five groups: bystander witnessed cases. ?. bystander CPR, unwitnessed cases. ?. bystander CPR, and EMS witnessed cases. The main outcomes were survival to hospital and survival to hospital discharge. Twelve-month survival with good functional recovery was measured in a sub-group of patients using the Extended Glasgow Outcome Scale (GOSE). Results: Baseline and arrest characteristics differed significantly across groups. Unadjusted survival outcomes were highest among bystander witnessed cases receiving bystander CPR and EMS witnessed cases, however outcomes differed significantly between these groups: survival to hospital (46.0 vs. 53.4 respectively, p

AB - Background: Despite immediate resuscitation, survival rates following out-of-hospital cardiac arrests (OHCA) witnessed by emergency medical service (EMS) are reportedly low. We sought to compare survival and 12-month functional recovery outcomes for OHCA occurring before and after EMS arrival. Methods: Between 1st July 2008 and 30th June 2013, we included 8648 adult OHCA cases receiving an EMS attempted resuscitation from the Victorian Ambulance Cardiac Arrest Registry, and categorised them into five groups: bystander witnessed cases. ?. bystander CPR, unwitnessed cases. ?. bystander CPR, and EMS witnessed cases. The main outcomes were survival to hospital and survival to hospital discharge. Twelve-month survival with good functional recovery was measured in a sub-group of patients using the Extended Glasgow Outcome Scale (GOSE). Results: Baseline and arrest characteristics differed significantly across groups. Unadjusted survival outcomes were highest among bystander witnessed cases receiving bystander CPR and EMS witnessed cases, however outcomes differed significantly between these groups: survival to hospital (46.0 vs. 53.4 respectively, p

UR - http://www.sciencedirect.com/science/article/pii/S0300957215000295

U2 - 10.1016/j.resuscitation.2015.01.012

DO - 10.1016/j.resuscitation.2015.01.012

M3 - Article

VL - 89

SP - 50

EP - 57

JO - Resuscitation

JF - Resuscitation

SN - 0300-9572

IS - C

ER -