It seems of the greatest importance to evaluate the neurological prognosis of patients with brain lesions after cardiorespiratory arrest or circulatory failure requiring circulatory assistance.

However, to date, there is no clinical or paraclinical diagnostic test to reliably assess the future of these patients.

The objective of this study is to highlight the clinical and imaging factors for establishing a neurological prognosis in patients at risk of brain lesions under ExtraCorporeal Life Support (ECLS).

Inclusion Criteria:

• Patients with brain lesions on veno-arterial circulatory support after cardiac arrest or cardiogenic shock who require at least 24 hours of sedation

Exclusion Criteria:

• Extubation expected within the first 24 hours of management
• Minor patient
• Pregnant women

Patients with brain lesions on veno-arterial ECLS after cardiac arrest or cardiogenic shock, requiring at least 24 hours sedation