
Abstract
Four randomized trials published between 2020 and 2023 compared extracorporeal cardiopulmonary resuscitation (ECPR) to conventional cardiopulmonary resuscitation1–4 and the controversial findings of the last one, the INCEPTION trial triggered great debates.3,5 ECPR offers a rescue chance with a reasonable odd of favorable survival, while invasive protocols extend the window of potential successful resuscitation, providing an opportunity for effective intervention even beyond the conventional timeframe.6,7 A new paradigm of resuscitation focused on neurological outcomes. Patients who received ECPR due to an out-of-hospital cardiac arrest (OHCA), compared with patients who received conventional CPR had a higher rate of survival with favorable neurological outcome 27% vs. 18%.8 When considering the subgroup with an initial shockable rhythm, ECPR increased the proportion of patients surviving with favorable neurological outcome up to 34% compared to conventional CPR (23%).8 Due to the meta-analysis of six large cohorts, ECPR compared to conventional CPR after cardiac arrest in any setting (in-hospital cardiac arrest (IHCA) and OHCA), was associated with improved long-term neurologically intact survival defined a priori as a Glasgow-Pittsburgh cerebral performance category (CPC) of 1 or 2.9 Of long-term survivors of the Prague OHCA trial, 1/34 (2.9%) in the ECPR-based arm and 1/26 (3.8%) in the conventional CPR arm had poor neurological outcome (CPC 3).10 Several data on long term neurological and functional outcomes in patients who received ECPR in out-of-hospital arrest are available.10–17 ECPR accomplished a satisfactory neurological functioning and perceived quality of life quantified with the SF-36 questionnaire and CPC. Younger age and shorter length of hospitalization were associated with return to work, however ECPR compared to CPR was not.18 CPR duration remains a critical determinate of survival, and the likelihood of neurologically favorable survival declines with prolonged resuscitation.7 ECPR was associated with improved neurologically favorable survival at all CPR durations < 60 min despite severe progressive metabolic derangement.7
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