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subdural hematoma

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subdural hematoma

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Also known as subdural haematoma, SDH

hematoma usually associated with traumatic brain injury

Key facts

Other names
Subdural haematoma, subdural haemorrhage
Specialty
Neurosurgery , Neurology
Causes
Head injury , alcohol use disorder , reduction in cerebrospinal fluid pressure
Risk factors
Senescence , long-term excessive alcohol consumption, dementia , and cerebrospinal fluid leak

via Wikipedia infobox

~14 min read

Encyclopedic overview

A subdural hematoma (SDH) is a type of bleeding in which a collection of blood—usually but not always associated with a traumatic brain injury—gathers between the inner layer of the dura mater and the arachnoid mater of the meninges surrounding the brain. It usually results from rips in bridging veins that cross the subdural space.

Subdural hematomas may cause an increase in the pressure inside the skull, which in turn can cause compression of and damage to delicate brain tissue. Acute subdural hematomas are often life-threatening. Chronic subdural hematomas have a better prognosis if properly managed.

Excerpted from Wikipedia’s “subdural hematoma” article, available under the CC BY-SA 4.0 licence.

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