Severe Head Trauma: Coagulation and CT-Scan Aggravation.

Severe Head Trauma: Coagulation and CT-Scan Aggravation.

Retrospective, multicenter cohort study describing the biological, radiological and clinical criteria of patients managed for isolated severe head trauma between January 2016 and December 2018.

The objective of the study is to describe the evolution of CTscan lesions in patients with isolated Head Trauma between admission and re-evaluation after 24 hours.

Inclusion Criteria:

• Adults
• Patients informed and did not object to the collection of their medical data for the study
• Patient admitted in Trauma center between January 2016 and December 2018 severe head injury defined by a Glasgow Coma Scale (GCS) < 9 AND/OR Abnormalities on the first brain CT-scan with pathological transcranial Doppler (Vd < 25 cm/s and IP > 1.25)

Exclusion Criteria:

• Abbreviated Injury Score (AIS) head and neck ≤ 3 AND/OR AIS out of head and neck > 3
• Taking drugs that interfere with hemostasis, such as anticoagulant or antiplatelet antiaggregants in preventive or curative doses;
• Patients under guardianship
• Patients still alive at the time of data collection AND opposed to the collection of their data