Head Injury (Meninges)

Question 1

Characteristics of extradural hemorrhage:

Answer 1

1_Site: temporoparietal area (hinge fracture)
2_Due to rupture of middle meningeal artery
3_Mainly associated with fracture (85%)

Question 2

Three types of intracranial hemorrhage:

Answer 2

Extradural
Subdrual
Subarachnoid

Question 3

What is the Lucid interval:

Answer 3

It is a temporary period of consciousness and seeming recovery that follows a period of unconsciousness.
Or
It’s the period of consciousness between two unconsciousness:
1. The fist is due to the trauma.
2. And the second is due to compression.

Question 4

Write short notes about subdural hemorrhage:

Answer 4

Mainly venous
It is not necessary to be related to fractures.
May occurs with diatasis of sutur
Due to sliding of emmisary veins

Question 5

Chronic subdural hemorrhage can be misdiagnosed as a:

Answer 5

Stroke (CVA)

Question 6

Chronic subdural hemorrhage (hematoma) may be caused by:

Answer 6

Repeated trauma
Ex: hypoglycemia, hypotension, drunk person or seizure.

Question 7

Most dangerous intracranial hemorrhage type:

Answer 7

Subarachnoid

Question 8

Why is subarachnoid hemorrhage more dangerous than other types:

Answer 8

1. Because it takes the entire brain and not one place like the rest (in the doctor’s words)
2. Also because it’s mainly arterial (rapidly progressive).

Question 9

Mechanism of pathological type of subatachnoid :

Answer 9

Rupture of Berry aneurysm in the circle of willis cause bleeding and sudden death

Question 10

One of causes of sudden death in the middle age:

Answer 10

Subarachnoid hemorrhage (pathological)

Question 11

Medicolegal importance of meningeal hemorrhage;

Answer 11

Lucid interval
If there is a big quantity, it may show signs of compression and ++ICP : seizure, projectile vomiting, unconscious, and death.

Question 12

You can take a sample to measure CO level to confirm:

Answer 12

Heat hematoma (++CO)