Professional
Technical
IVT
subdural hematoma
Collection of blood between the dura mater and arachnoid membrane, typically resulting from torn bridging veins.
Full Definition
A type of intracranial hemorrhage characterized by blood accumulation in the subdural space, located between the dura mater (outermost brain covering) and the arachnoid membrane. Subdural hematomas commonly result from head trauma that causes tearing of bridging veins crossing the subdural space. They are classified as acute (symptoms within 72 hours), subacute (3-21 days), or chronic (over 21 days), with different presentations and treatment approaches for each type.
Usage
Usage note: Often abbreviated as SDH; distinguish location from epidural (above dura) and subarachnoid (below arachnoid).
In Context
- "CT imaging revealed a large acute subdural hematoma requiring immediate surgical evacuation." — emergency department report
- "Chronic subdural hematomas in elderly patients may present with gradual cognitive decline rather than acute symptoms." — clinical assessment
Also known as
SDH
Don't confuse with
epidural hematoma
subarachnoid hemorrhage