Analysis of epidemiological characteristics and trends of out-of-hospital cardiac arrest in Shenzhen
10.3760/cma.j.issn.1671-0282.2025.05.014
- VernacularTitle:深圳市院外心脏骤停流行特征及趋势分析
- Author:
Hong ZHU
1
;
Hanbing XU
;
Lin ZHANG
Author Information
1. 深圳市急救中心，深圳 518034
- Keywords:
Out-of-hospital cardiac arrest;
Return of spontaneous circulation;
Pre-hospital treatment;
Cardiopulmonary resuscitation
- From:
Chinese Journal of Emergency Medicine
2025;34(5):698-706
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To elucidate the epidemiological characteristics and temporal trends of out-of-hospital cardiac arrest (OHCA) in Shenzhen.Methods:Retrospective data on OHCA cases managed by emergency medical services (EMS) and admitted to network hospitals in Shenzhen from January 1, 2011 to December 31, 2022, were collected following the Utstein template. Demographic characteristics, event information, treatment, and resuscitation outcomes were included. Descriptive statistics, Joinpoint time trend analysis and a multivariate logistic regression were employed to identify factors influencing the return of spontaneous circulation (ROSC) after prehospital resuscitation.Results:A total of 46 053 EMS-accessed OHCA were included, of which 16 330 (35.46%) received EMS resuscitation. The crude incidence of EMS-accessed OHCA increased significantly from 15.51 per 100 000 in 2011 to 44.73 per 100 000 in 2022, with a significant overall upward trend (AAPC=11.83%, 95% CI: 8.33%-15.44%, P<0.001). Among EMS-treated OHCA, the bystander cardiopulmonary resuscitation (CPR) rate rose from 5.11% to 20.90% (AAPC=13.68%, 95% CI: 9.11%-18.44%, P<0.001), while prehospital ROSC rates increased from 2.33% to 8.62% (AAPC=17.53%, 95% CI: 13.01%-22.23%, P<0.001), both showing significant upward trends. Among EMS-treated OHCA patients, those with events occurring in public places (a OR=1.28, 95% CI: 1.06-1.55, P=0.006), presumed cardiovascular etiology (a OR=1.95, 95% CI: 1.65-2.32, P<0.001), initial shockable rhythm on monitoring (a OR=2.56, 95% CI: 1.08-3.15, P<0.001), bystander CPR (a OR=1.43, 95% CI: 1.16-1.76, P<0.001), airway opening (a OR=2.39, 95% CI: 1.70-3.46, P<0.001), and defibrillation (a OR=1.29, 95% CI: 1.06-1.57, P=0.010) had higher ROSC rates. Conversely, males (a OR=0.67, 95% CI: 0.55-0.81, P<0.001), the older (a OR=0.99, 95% CI: 0.98-0.99, P<0.001), and longer symptom onset to call 120 time of [10, 20) min (a OR=0.52, 95% CI: 0.39-0.70, P<0.001), [20, 30) min (a OR=0.33, 95% CI: 0.24-0.47, P<0.001), and ≥ 30 min (a OR=0.35, 95% CI: 0.25-0.49, P<0.001) were associated with lower prehospital resuscitation success rates. Conclusions:The incidence of OHCA in Shenzhen exhibited a significant upward trend from 2011 to 2022. Public location of arrest and early recognition-intervention were critical determinants of outcomes. Enhancing prehospital ROSC requires targeted improvements in the prehospital survival chain, including widespread public CPR training and optimized EMS accessibility.
