Cardiac arrest & resuscitation
Enhancing out-of-hospital cardiac arrest survival in China through the 5-minute social rescue circle implementation
Authors' conclusion
These findings underscore the critical synergy between community preparedness (frequent CPR training, AED accessibility) and advanced hospital care in optimizing OHCA outcomes.
Study context
- Population
- Out-of-hospital Cardiac Arrest (OHCA) cases in Baoan District, Shenzhen, China, March 2019 to September 2024
- Participants
- 3,586 OHCA cases
- Outcome
- Prehospital ROSC and 30-day survival
Methodological detailsregistry data integration, geospatial tracking, machine learning, SHAP analysis, WeChat-based 5MSRC system integrating video-guided cardiopulmonary resuscitation (CPR) with emergency dispatch, Datasets: 332,507 CPR-trained residents; 4,707 automated external defibrillator (AED) deployments
- Registry data integration
- Geospatial tracking
- Machine learning
- SHAP analysis
- WeChat-based 5MSRC system integrating video-guided CPR with emergency dispatch
- Datasets: 332,507 CPR-trained residents; 4,707 AED deployments
Main finding
As reported in the abstract
Prehospital ROSC
3.88 %
Survival after 30 days
3.82 %
Observational data: associations, not effects.
Further findings
Outcomes by arrest location (public vs residential)
- ROSC: public vs residential
- 66.2 % vs 33.8 %
- 30-day survival: public vs residential
- 68.6 % vs 31.4 %
- Both p < 0.001
Temporal trends during post-pandemic recovery (2020-2024)
- Bystander CPR rate increased
- 12.32 % to 27.27 %
- AED application rose
- 1.96 % to 4.64 %
- 30-day survival improved
- 2.27 % to 6.51 %
- All p < 0.05
Machine learning prediction performance
- Best ROC-AUC for prehospital ROSC
- 0.92 (95 % CI 0.91-0.93)
- Best ROC-AUC for 30-day survival
- 0.97 (95 % CI 0.96-0.98)
Feature importance (SHAP)
- Community-level factors (recent CPR training rates, AED proximity, rapid response systems) drove prehospital ROSC; hospital-based interventions (e.g., PCI) increasingly important for 30-day survival
Original publication
Enhancing out-of-hospital cardiac arrest survival in China through the 5-minute social rescue circle implementation. Resuscitation. Published 30 June 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →