1(E) Intracranial Haemorrhage Flashcards

(63 cards)

1
Q

What is intracranial haemorrhage

A

Bleeding within ventricles

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2
Q

In which population does intraventricular haemorrhage occur

A

Pre-mature neonates

Rare in adults

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3
Q

Why does intraventricular haemorrhage happen in pre-mature neonates

A

Due to pre-maturity of periventricular vessels

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4
Q

What can cause inter ventricular haemorrhage in adults

A
  • Extension SAH

- Vascular lesions (AV malformation, Aneurysm)

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5
Q

In pre-mature neonates, when will intraventricular haemorrhage occur

A

Several days following birth

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6
Q

What is the management of intraventricular haemorrhage

A

VP Shunt to divert CSF

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7
Q

What is the main complication if intraventricular haemorrhage

A

Obstructive hydrocephalus

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8
Q

What is subarachnoid haemorrhage

A

Bleeding into subarachnoid space

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9
Q

What are the two etiological categories of SAH

A
  • Traumatic

- Non-traumatic

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10
Q

What is the most common cause of SAH

A

Most common

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11
Q

What is the most common cause of non-traumatic SAH

A

Berry aneurysm

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12
Q

In which gender are berry aneurysms more common

A

Female (3:2)

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13
Q

In which artery are berry aneurysms more common

A

Anterior communicating artery

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14
Q

What are 4 other causes of SAH

A
  • AV malformation
  • Pituitary apoplexy
  • Mycotic aneurysm
  • Carotid artery dissection
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15
Q

Give 3 conditions associated with berry aneurysm formation

A

ADPKD
Ehlers-Danlos
Coarctation aorta

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16
Q

What are 4 risk factors for berry aneurysm

A
Smoking
Cocaine and amphetamine use 
HTN
Alcohol 
FH
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17
Q

How does SAH present clinically

A
  • Sudden-onset occipital thunderclap headache - sentinel headache beforehand.
  • Nausea and Vomitting
  • LOC
  • Seizures

Meningism:

  • Stiff neck
  • Headache
  • Photophobia
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18
Q

What are signs of meningism

A

Brudzinski

Kernig

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19
Q

When is Kernig sign first positive

A

6-hours following onset

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20
Q

What syndrome is associated with SAH

A

Terson syndrome

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21
Q

What is Terson’s syndrome

A

Retinal, Subhyaloid and vitreous bleeds

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22
Q

What is the problem with Terson’s syndrome

A

5-times risk of mortality

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23
Q

What ECG changes are present in SAH

A

ST elevation

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24
Q

What immediate investigation is ordered in SAH

A

CT-head

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25
What other investigation is ordered in SAH
CT angiography | LP
26
When is LP performed
12 hours afterwards
27
What is looked for on LP
Xanthrochromia
28
How long does xanthochromia remain high for
2-weeks
29
What other finding on LP may support diagnosis of SAH
High opening pressure
30
What should be done immediately in SAH
Urgent referral to neurosurgery
31
What medication is given for SAH
Nimodipine
32
How do neurosurgery treat SAH
Endovascular coiling
33
What is an alternative to endovascular coiling
Craniotomy and surgical clipping
34
How is any hydrocephalus managed
External ventricular drain. Then managed long-term with VP shunt
35
What is highest risk in first 24h following SAH
Re-bleeding
36
What is highest risk in 7-14d following SAH
Vasospasm
37
What can vasospasm cause
Communicating hydrocephalus
38
What is a metabolic complication of SAH
SIADH - leading to hyponatraemia
39
What is a neurological complication of SAH
Seizures | Hydrocephalus
40
What is subdural haemorrhage
Bleeding in dural space
41
How are subdural haemorrhages classified
Acute: less than 4-days Sub-acute: 4-21 days Chronic: more than 21-days
42
What causes subdural haemorrhage
Rupture of bridging veins from superficial cerebral surface to dural venous sinus
43
What mechanism of injury usually causes subdural haemorrhage
Acceleration-Deceleration Injury Shaken Baby Syndrome Secondary to falls
44
What increases risk of falls
Elderly | Alcoholic
45
Explain trauma in subdural haemorrhage
Often individuals do not remember the initial trauma - as it is 9 months previously
46
What two groups are at risk of subdural haemorrhage
Alcoholics | Elderly
47
How does acute subdural haemorrhages present
Fluctuating consciousness Personality change Headache Intellectual or physical impairment
48
How does chronic subdural haemorrhage present
Week-month history of progressive confusion, reduced consciousness and neurological deficit
49
What trauma causes acute subdural haematomas
High-impact
50
What can acute subdural haemorrhages lead to
Acute haemorrhage can cause midline shift and raised ICP which leads to trans-tentorial herniation
51
What investigation should be ordered for subdural haematoma
CT
52
What will be seen in acute subdural on CT
Hyperdense collection of blood Cresenteric shape Not limited by suture lines
53
What will be seen in chronic subdural on CT
Hypodense collection of blood
54
How are subdural haematomas managed
Burr-hole | Craniotomy
55
What is an extradural haematoma
Bleeding between dura mater and skull
56
What is peak demographic for extradural haemaotma
Male | 20-30 years
57
What causes extradural haematoma
Trauma to pterion
58
What passes under pterion
Rupture middle meningeal artery
59
Explain presentation of extradural haematoma
Individual has decrease in GCS. Then followed by a luck interval. Then deterioration in GCS and symptoms raised ICP: - Headache - N+V - Seizures - Fixed dilated pupil (CN3 compression) - Cushing's reflex- bradycardia, hypotension, irregular respiration
60
What indicates CN3 compression
Fixed mid-dilated pupil
61
What investigation is ordered for extradural haematoma
CT
62
What will be seen on CT in extradural haematoma
Lemon shape hyperdennse collection | Limited by suture lines
63
How are extradural haematomas managed
Burr Hole | Craniotomy