For Doctors in a Hurry
- Researchers evaluated survival and neurological outcomes of extracorporeal resuscitation for out-of-hospital cardiac arrest at a newly established center.
- This monocentric retrospective study analyzed 74 patients with refractory cardiac arrest who received mechanical cardiopulmonary resuscitation and extracorporeal support.
- The survival rate to intensive care unit discharge was 39.1%, with 29% achieving good neurological outcomes at 30 days.
- The authors concluded that these survival and quality of life outcomes are comparable to those of established extracorporeal resuscitation centers.
- These findings suggest that new centers can achieve favorable long-term patient independence despite prolonged collapse-to-treatment intervals of 75 minutes.
The Logistical and Clinical Hurdles of Extracorporeal Resuscitation
Extracorporeal cardiopulmonary resuscitation (a salvage therapy utilizing veno-arterial extracorporeal membrane oxygenation to mechanically restore blood flow when conventional chest compressions fail) is increasingly utilized for patients with refractory out-of-hospital cardiac arrest [1]. Recent meta-analyses indicate that this extracorporeal approach can significantly improve survival with favorable neurological outcomes at 30 days compared to standard resuscitation, with one 2024 review of 18 studies showing a doubling of favorable neurological survival from 7 percent to 14 percent (odds ratio 2.35; 95 percent confidence interval 1.61 to 3.43; p < 0.001) [2]. However, the clinical data remain conflicting, as a 2025 randomized trial of 197 patients demonstrated no significant difference in favorable neurological outcomes at hospital discharge between expedited extracorporeal transport and standard on-scene resuscitation (14.7 percent versus 15.8 percent; p=0.87) [3]. Other analyses highlight the logistical complexities and increased bleeding risks associated with rapid cannulation [4]. Because establishing an extracorporeal cardiopulmonary resuscitation program requires immense institutional resources and precise coordination, many hospitals hesitate to adopt the practice as a standard of care, prompting a recent retrospective analysis that offers fresh clinical insights into the feasibility and long-term patient outcomes of launching a new center from the ground up.
Although extracorporeal resuscitation has been shown to improve outcomes in out-of-hospital cardiac arrest, it is rarely the standard of care due to the steep logistical challenges of establishing new treatment centers. To determine whether a newly implemented program could replicate the success of established institutions, researchers designed a retrospective study to evaluate the efficacy of a nascent extracorporeal resuscitation protocol. The primary objective of the study was to assess survival rates and neurological outcomes for patients receiving this intensive intervention. Furthermore, the secondary objective was to evaluate procedural parameters in relation to neurological outcomes and describe long-term quality of life six months post-arrest, providing clinicians with a comprehensive view of patient recovery well beyond initial hospital discharge. To capture these data, the investigators analyzed a cohort of patients with refractory out-of-hospital cardiac arrest who were transported to the hospital with ongoing mechanical cardiopulmonary resuscitation. The study evaluated the implementation of this protocol at the extracorporeal membrane oxygenation center of the University Hospital Ostrava in the Czech Republic. The study period ran from January 1, 2022, until the end of 2024, capturing the critical early years of the program. Throughout this timeframe, indication criteria and care standards followed a strict local protocol to ensure uniform clinical decision-making. Outcomes were assessed using the hospital registry, allowing the research team to track both immediate resuscitation metrics and extended patient trajectories.
Cannulation Success and 30-Day Neurological Outcomes
Over the three-year study period, 74 patients met the inclusion criteria for extracorporeal resuscitation. Despite the logistical hurdles inherent in transporting patients with refractory cardiac arrest, the newly established center demonstrated high procedural efficacy. The researchers reported that the cannulation success rate exceeded 93 percent. This high rate of successful vascular access and circuit initiation was achieved even with prolonged transport and resuscitation times, as the median collapse-to-extracorporeal membrane oxygenation interval was 75 minutes. Following successful cannulation and intensive care management, the clinical outcomes indicated substantial recovery rates for a cohort that would otherwise face near-certain mortality. The study found that survival to discharge from the intensive care unit was 39.1 percent. Furthermore, 27.5 percent of patients were discharged directly home, reflecting a return to baseline living environments for more than a quarter of the treated individuals. When evaluating cognitive and functional recovery, the researchers noted that a good neurologic outcome on Day 30 post-arrest was observed in 29 percent of patients. This was defined as a Cerebral Performance Category of 1 or 2, a clinical scale indicating that the patient is conscious, alert, and possesses sufficient cerebral function to lead an independent life. For emergency physicians and intensivists, these figures demonstrate that a newly formed team can achieve viable neurological salvage even when pre-hospital resuscitation times stretch beyond an hour.
Six-Month Survival and Quality of Life Metrics
To understand patient trajectories beyond the acute recovery phase, the researchers tracked the cohort over a half-year period, finding that survival after 6 months was 33.3 percent. To assess the functional and psychological status of these survivors, long-term outcomes were evaluated retrospectively using three standardized clinical tools: the SF36 (a survey of general health and physical functioning), the EQ-5D-5L (a measure of mobility, self-care, and pain), and the HADS (a hospital anxiety and depression scale). Together, these instruments provided a comprehensive picture of life after extracorporeal resuscitation, moving beyond simple mortality to evaluate true clinical recovery. The questionnaire data revealed highly functional recoveries among the survivors. At 6 months post-arrest, patients reported only low levels of pain, anxiety, and depression. Furthermore, the majority of patients were completely self-sufficient at 6 months, experiencing only minor problems with mobility or usual activities. This high degree of functional independence was reflected in a median Quality-Adjusted Life Year per year score of 0.90, a health economics metric indicating that survivors regained a status very close to perfect health (which would score a 1.0). Placing these findings into a broader clinical context, the investigators noted that the outcomes of the newly established program in Ostrava are comparable with long-standing extracorporeal resuscitation centers. Launching a mechanical circulatory support protocol requires overcoming steep institutional hurdles, yet the authors concluded that results were highly favorable with good overall quality of life, especially considering the 75-minute collapse-to-extracorporeal membrane oxygenation interval. For practicing physicians, these data provide reassuring evidence that even with prolonged transport times, newly established centers can achieve durable, high-quality survival for patients with refractory cardiac arrest.
References
1. Olson T, Anders M, Burgman C, Stephens A, Bastero P. Extracorporeal cardiopulmonary resuscitation in adults and children: A review of literature, published guidelines and pediatric single-center program building experience.. Frontiers in medicine. 2022. doi:10.3389/fmed.2022.935424
2. Pagura L, Fabris E, Rakar S, et al. Does extracorporeal cardiopulmonary resuscitation improve survival with favorable neurological outcome in out-of-hospital cardiac arrest? A systematic review and meta-analysis.. Journal of critical care. 2024. doi:10.1016/j.jcrc.2024.154882
3. Burns B, Marschner IC, Buscher H, et al. Expedited transfer from the scene for refractory out-of-hospital cardiac arrest in Australia: a prospective, multicentre, parallel, open label, randomised clinical trial.. The Lancet Respiratory Medicine. 2025. doi:10.1016/s2213-2600(25)00130-4
4. Wang J, Chen Y, Dong R, et al. Extracorporeal vs. conventional CPR for out-of-hospital cardiac arrest: A systematic review and meta-analysis.. American Journal of Emergency Medicine. 2024. doi:10.1016/j.ajem.2024.04.002
