This retrospective data repository will serve as a means to aggregate and analyze standard surgical interventions and Middle Meningeal Arteryembolization as suitable treatment options for Acute Subdural Hematoma.

The primary objective of this study is to establish a data repository permissive of quality improvement studies/observations specific to patients with Acute Subdural Hematoma and evaluate impact of surgical interventions like burr hole trephination, Craniotomy, Decompressive Craniectomy, and Middle Meningeal Arteryembolization embolization on survival outcomes.

Inclusion Criteria:

• ≥18 years old
• Included in the Methodist Dallas Medical Center Trauma Registry
• Acute subdural hematoma identified on computed tomography scan or magnetic resonance imaging of the brain in the trauma bay within 72 hours of a traumatic event

Exclusion Criteria:

• <18 years old
• Prisoners, pregnant persons, or other protected population

Acute subdural hematoma, a consequential manifestation within 72 hours post-trauma, is a major cause of morbidity and mortality following severe traumatic brain injury. In patients where Acute subdural hematoma is accompanied by progressive neurologic deficits or substantial mass effect, prompt surgical intervention via craniotomy or decompressive craniectomy serves as the standard approach to mitigate the risk of further morbidity and mortality.

All information will be blinded in compliance with Good Clinical Practice. The investigator will make all possible efforts to ensure compliance with all policies regarding sharing of Protected Health Information or research information. Only de-identified Protected Health Information will be shared in relevant research mediums.