The aim of this study is to describe acute neurocardiogenic injury after subarachnoid hemorrhage assessed with cardiac 123I-MIBG scintigraphy and 18F-FDG PET/CT during the first week and the first six months after SAH.

The study hypothesis is that the evolution of the cardiac disturbances follows the clinical evolution.

The cardiac metabolic disturbance are assessed by a 18F-FDG PET/CT in the first week after SAH and monthly until normal result.

The myocardial sympathetic innervation is assessed by a cardiac 123I-MIBG scintigraphy in the first week after SAH and six months later.

Clinical outcome is assessed by Glasgow Outcome Scale, modified Rankin Scale and MOS-SF36 at 1, 3 and 6 months after SAH.

Inclusion Criteria:

• age
• SAH
• Hospitalization in the Military Teaching Hospital Sainte Anne

Exclusion Criteria:

• Refusal of consent

patients presenting a SAH