Extracorporeal membrane oxygenation for refractory cardiac arrest: a retrospective multicenter study

Area of Science:

• Cardiology
• Neurology
• Critical Care Medicine

Background:

• Extracorporeal cardiopulmonary resuscitation (ECPR) is an advanced life support technique used in refractory cardiac arrest.
• Assessing neurologic outcomes is crucial for evaluating the efficacy and patient selection for ECPR.

Purpose of the Study:

• To evaluate the neurologic outcome of patients treated with ECPR across five European centers.
• To compare outcomes between unselected patients and a subgroup meeting stringent selection criteria.

Main Methods:

• Retrospective analysis of prospective observational cohorts of ECPR patients (2012-2016).
• Primary outcome: 3-month favorable neurologic outcome (Cerebral Performance Categories 1-2).
• Analysis of a subgroup with stringent criteria: age ≤ 65 years, witnessed CPR, no major comorbidities, ECMO within 1 hour.

Main Results:

• A total of 423 patients were included; 19% achieved favorable neurologic outcome.
• Out-of-hospital cardiac arrest patients had significantly lower favorable neurologic outcome rates (9% vs. 34%).
• Applying stringent selection criteria resulted in a 38% favorable neurologic outcome rate.

Conclusions:

• ECPR is associated with intact neurological recovery in 19% of unselected cardiac arrest patients.
• The application of stringent selection criteria can significantly increase favorable neurologic outcomes in ECPR candidates.