The non-neurosurgical management of post-traumatic cerebral hemorrhagic lesions is currently poorly codified. It consists of neurological monitoring for 24 to 48 hours, and the performance of an almost systematic brain scan. Anti-aggregation and anticoagulation treatments are stopped for 14 to 28 days and should be resumed according to the risk-benefit ratio and the advice of the patient's treating physicians and cardiologists.

If the bleeding lesions do not progress, the patients are allowed to return home. If the lesions progress, the patients remain hospitalized for further monitoring, a new brain scan and neurosurgical advice.

This study seeks to show that the performance of systematic brain imaging in the absence of clinical deterioration of patients admitted to the UHCD for post-traumatic intracranial hemorrhage could be avoided, and thus to administer an unnecessary dose of irradiation to the patients, and would also have a significant financial stake.

Several recent studies have shown that there is no need to perform a follow-up brain scan in the absence of neurological deterioration, even in anticoagulated patients or those on antiplatelet drugs. Despite the growing number of articles, no recommendation or consensus has been proposed.

Inclusion criteria:

• Adult patient (≥18 years old)
• Admitted to Emergency department of the Strasbourg University Hospital during the year 2017 (from 01/01/2017 to 31/12/2017)
• Patient having given his consent to the reuse of his data for the purpose of this research
• Hospitalized at the University Hospital for monitoring of a post-traumatic intracranial hemorrhage

Exclusion criteria:

• Patient having expressed opposition to participate in the study
• Non-isolated cranial trauma (MVA, fall greater than 6 meters ..)
• Subject under court protection
• Subject under guardianship or curatorship

Adult patient (≥18 years old) admitted to Emergency department of the Strasbourg University Hospital during the year 2017 (from 01/01/2017 to 31/12/2017)