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A Comparison between Conventional and Extracorporeal Cardiopulmonary Resuscitation in Out-of-Hospital Cardiac Arrest:
Reem Alfalasi1, Jessica Downing2, Stephanie Cardona3
1Department of Critical Care Medicine, New York Presbyterian Hospital/Columbia University Irving Medical Center, New York, NY 10032, USA.
Insights
Extracorporeal cardiopulmonary resuscitation (ECPR) shows promise for improving long-term neurologic outcomes in refractory out-of-hospital cardiac arrest (OHCA) patients compared to standard CPR. However, survival benefits were not significant at all time points.
Area of Science:
- Cardiology
- Emergency Medicine
- Critical Care Medicine
Background:
- Limited evidence exists comparing extracorporeal cardiopulmonary resuscitation (ECPR) to standard cardiopulmonary resuscitation (CPR) for refractory out-of-hospital cardiac arrest (OHCA).
- Understanding the comparative effectiveness of ECPR versus CPR is crucial for optimizing patient management and outcomes.
Purpose of the Study:
- To systematically review and meta-analyze existing evidence comparing survival and neurologic outcomes between ECPR and CPR in OHCA patients.
- To identify the long-term efficacy of ECPR in improving patient recovery after cardiac arrest.
Main Methods:
- A systematic review and meta-analysis of observational studies and randomized controlled trials were conducted.
- Searches were performed in PubMed, EMBASE, and Scopus, with quality assessed using the Newcastle-Ottawa Scale and Cochrane's risk-of-bias tool.
- Random-effects models and moderator analysis were employed to compare outcomes and identify sources of heterogeneity.
Main Results:
- The analysis included 13 studies with 18,620 OHCA patients (16,701 CPR, 1919 ECPR).
- ECPR was associated with significantly higher odds of favorable neurologic outcomes at 3 and 6 months post-arrest compared to CPR.
- No significant differences in survival or neurologic outcomes were observed at hospital discharge or 1 month post-arrest.
Conclusions:
- ECPR is a promising intervention for improving long-term neurologic recovery in selected OHCA patients.
- While ECPR demonstrates potential for improved neurologic outcomes, it is a resource-intensive therapy.
- Further research may clarify the optimal patient selection and timing for ECPR in OHCA management.
Abstract:
There is limited evidence comparing the use of extracorporeal cardiopulmonary resuscitation (ECPR) to CPR in the management of refractory out-of-hospital cardiac arrest (OHCA). We conducted a systematic review and meta-analysis to compare survival and neurologic outcomes associated with ECPR versus CPR in the management of OHCA. We searched PubMed, EMBASE, and Scopus to identify observational studies and randomized controlled trials comparing ECPR and CPR. We used the Newcastle−Ottawa Scale and Cochrane’s risk-of-bias tool to assess studies’ quality. We used random-effects models to compare outcomes between the pooled populations and moderator analysis to identify sources of heterogeneity and perform subgroup analysis. We identified 2088 articles and included 13, with 18,620 patients with OHCA. A total of 16,701 received CPR and 1919 received ECPR. Compared with CPR, ECPR was associated with higher odds of achieving favorable neurologic outcomes at 3 (OR 5, 95% CI 1.90−13.1, p < 0.01) and 6 months (OR 4.44, 95% CI 2.3−8.5, p < 0.01). We did not find a significant survival benefit or impact on neurologic outcomes at hospital discharge or 1 month following arrest. ECPR is a promising but resource-intensive intervention with the potential to improve long-term outcomes among patients with OHCA.
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