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Associated Factors of Patients' Survival in Out of Hospital Cardiac Arrest; a Cross-sectional Study

Liang Ke1, Pui I Ieong2, Kaye E Brock1,3

  • 1Macao Hypertension League, China.

Archives of Academic Emergency Medicine
|July 4, 2024
PubMed

Insights

Out-of-hospital cardiac arrest survival in Macao is predicted by shockable rhythm, male sex, faster emergency medical service response, and early defibrillation. Public awareness and education are crucial for improving outcomes.

Area of Science:

  • Emergency Medicine
  • Cardiology
  • Public Health

Background:

  • Out-of-hospital cardiac arrest (OHCA) presents a significant public health challenge, particularly in Chinese populations.
  • Macao Special Administrative Region (SAR), China, has an increasing prevalence of OHCA, necessitating focused research on survival factors.

Purpose of the Study:

  • To investigate prehospital factors associated with survival to hospital admission and discharge in adult OHCA cases in Macao.
  • To identify key predictors that can inform public health strategies and emergency medical services (EMS).

Main Methods:

  • Retrospective analysis of 904 adult OHCA cases in Macao.
  • Data collected from medical records and the Macao Fire Services Bureau.
  • Multivariate logistic regression used to analyze demographic and prehospital factors influencing survival.

Main Results:

  • Initial shockable cardiac rhythm was the strongest predictor for survival to both admission (OR=3.57) and discharge (OR=12.40).
  • Male sex (OR=1.63) and lower EMS response time (OR=1.62) were associated with increased survival to hospital admission.
  • Access to prehospital defibrillation showed a significant 4-fold association with survival to hospital discharge (OR=4.25).

Conclusions:

  • Key predictors of OHCA survival include shockable rhythm, male sex, rapid EMS response, and prompt defibrillation.
  • Findings highlight the need for enhanced public awareness and targeted education to improve OHCA survival rates.
Abstract

Keywords:
AgeBystander Cardiopulmonary ResuscitationEmergency Medical Service Response TimesOut-of-Hospital Cardiac ArrestSurvival to Hospital AdmissionSurvival to Hospital Discharge

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