Predictive Model for the Occurrence of Cerebral Vasospasm Complicating Subarachnoid Haemorrhage by Combined Analysis of the Kinetics of a Panel of Biomarkers.
The objective is to create a dynamic clinical prediction model that includes routinely measured care and biological biomarkers to predict cerebral vasospasm within 14 days of bleeding in patients treated in the neurosurgical intensive care unit for subarachnoid hemorrhage.

Patients admitted to intensive care will be followed for up to 14 days (D14 time horizon of interest), or until discharge from intensive care if earlier.

Blood samples will be taken from D1 to D10 to isolate the blood biomarkers of interest for each patient.

The measurement of biomarkers and cerebral vasospasm will be blinded to each other.
- EligibilityCriteria: Inclusion Criteria:  Subarachnoid hemorrhage (of aneurysmal or non-aneurysmal etiology) less than 4 days prior to admission to neuro-resuscitation, diagnosed on clinical presentation and confirmed by brain imaging. Free, informed and written consent signed by the patient (or, failing this, his or her representative). Patient entitled to or affiliated with social security  Exclusion Criteria:  Significant vasospasm on admission to the department, diagnosed on initial imaging Patient whose short-term survival (48 hours) appears compromised Contraindication to perfusion CT scan Pregnant or breast-feeding women Patient under legal protection (persons deprived of liberty or under guardianship) - HealthyVolunteers: No - Gender: All - MinimumAge: 18 Years - StdAgeList: Adult, Older Adult