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The epidemiology of out-of-hospital cardiac arrest in Australia and New Zealand: A binational report from the Australasian Resuscitation Outcomes Consortium (Aus-ROC).
Bray, Janet; Howell, Stuart; Ball, Stephen; Doan, Tan; Bosley, Emma; Smith, Karen; Dicker, Bridget; Faddy, Steven; Thorrowgood, Melanie; Swain, Andy; Thomas, Andrew; Wilson, Alexander; Shipp, Carol; Walker, Tony; Bailey, Paul; Finn, Judith.
  • Bray J; Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia; Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), Curtin University, Western Australia, Australia. Electronic address: janet.bray@monash.edu.
  • Howell S; Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia.
  • Ball S; Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), Curtin University, Western Australia, Australia; St John Western Australia, Western Australia, Australia.
  • Doan T; Queensland Ambulance Service, Queensland, Australia.
  • Bosley E; Queensland Ambulance Service, Queensland, Australia; School of Clinical Sciences, Queensland University of Technology, Queensland, Australia.
  • Smith K; Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia; Ambulance Victoria, Victoria, Australia; Department of Community Emergency Health and Paramedic Practice, Monash University, Victoria, Australia.
  • Dicker B; St John New Zealand, Auckland, New Zealand; Auckland University of Technology, Auckland, New Zealand.
  • Faddy S; NSW Ambulance, New South Wales, Australia.
  • Thorrowgood M; SA Ambulance Service, South Australia, Australia.
  • Swain A; Wellington Free Ambulance, Wellington, New Zealand.
  • Thomas A; St John Ambulance NT, Northern Territory, Australia.
  • Wilson A; ACT Ambulance, Australian Capital Territory, Australia.
  • Shipp C; Ambulance Tasmania, Tasmania, Australia.
  • Walker T; Ambulance Victoria, Victoria, Australia.
  • Bailey P; St John Western Australia, Western Australia, Australia.
  • Finn J; Department of Epidemiology and Preventive Medicine, Monash University, Victoria, Australia; Prehospital, Resuscitation and Emergency Care Research Unit (PRECRU), Curtin University, Western Australia, Australia; St John Western Australia, Western Australia, Australia.
Resuscitation ; 172: 74-83, 2022 03.
Article in English | MEDLINE | ID: covidwho-1740147
ABSTRACT

INTRODUCTION:

The Australasian Resuscitation Outcomes Consortium (Aus-ROC) out-of-hospital cardiac arrest (OHCA) Epistry (Epidemiological Registry) now covers 100% of Australia and New Zealand (NZ). This study reports and compares the Utstein demographics, arrest characteristics and outcomes of OHCA patients across our region.

METHODS:

We included all OHCA cases throughout 2019 as submitted to the Epistry by the eight Australian and two NZ emergency medical services (EMS). We calculated crude and age-standardised incidence rates and performed a national and EMS regional comparison.

RESULTS:

We obtained data for 31,778 OHCA cases for 2019 26,637 in Australia and 5,141 in NZ. Crude incidence was 107.9 per 100,000 person-years in Australia and 103.2/100,000 in NZ. Overall, the majority of OHCAs occurred in adults (96%), males (66%), private residences (76%), were unwitnessed (63%), of presumed medical aetiology (83%), and had an initial monitored rhythm of asystole (64%). In non-EMS-witnessed cases, 38% received bystander CPR and 2% received public defibrillation. Wide variation was seen between EMS regions for all OHCA demographics, arrest characteristics and outcomes. In patients who received an EMS-attempted resuscitation (13,664/31,778) 28% (range across EMS = 13.1% to 36.7%) had return of spontaneous circulation (ROSC) at hospital arrival and 13% (range across EMS = 9.9% to 20.7%) survived to hospital discharge/30-days. Survival in the Utstein comparator group (bystander-witnessed in shockable rhythm) varied across the EMS regions between 27.4% to 42.0%.

CONCLUSION:

OHCA across Australia and NZ has varied incidence, characteristics and survival. Understanding the variation in survival and modifiable predictors is key to informing strategies to improve outcomes.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Cardiopulmonary Resuscitation / Emergency Medical Services / Out-of-Hospital Cardiac Arrest Type of study: Etiology study / Observational study / Prognostic study Limits: Adult / Humans / Male Country/Region as subject: Oceania Language: English Journal: Resuscitation Year: 2022 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Cardiopulmonary Resuscitation / Emergency Medical Services / Out-of-Hospital Cardiac Arrest Type of study: Etiology study / Observational study / Prognostic study Limits: Adult / Humans / Male Country/Region as subject: Oceania Language: English Journal: Resuscitation Year: 2022 Document Type: Article