12. Traumatic intracranial bleeding Flashcards
Types of intracranial bleeding
Epidural, subdural, subarachnoid, intraparenchymal
Subdural hemorrhage what and where
Subdural space: bw. dura mater and arachnoid. Head trauma leading to rupture of bridging veins.
Epidural hematoma
Temporal bone trauma leading to rupture of middle meningeal artery
Define intracranial bleeding
Any bleeding within the skull
Symptoms of epidural hematoma
- Headache (severe)
- Loss of consciousness, then a period of alertness, then rapid deterioration back to unconsciousness.
- Confusion.
- Dizziness.
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Drowsiness or altered level of alertness.
Nausea or vomiting.
Subdural hematoma CT findings
Crescent lesion which can cross the suture lines
Subarachnoid hemorrhage
Traumatic brain injury or berry aneurysm rupture. Arterial bleeding into subarachnoid space. Giving severe headache
Contusion
Traumatic brain injury (coup or counter-coup injuries). Multiple microhemorrhages leaking into brain tissue.
Symptoms of subdural hematoma
Slow, gradual progression of symptoms.
- Focal neurological signs (esp. limb weakness)
- Signs of incr. ICP: headache, papilledema, nausea
- Detoriation of conciousness
- Brain shift
Causes of subdural hematoma
MVA, shaken baby syndrome
Complication of subdural hematoma and symptoms
Uncal herniation: Ipsilateral CN III, contralateral weakness, signs of PCA stroke