Normal pressure hydrocephalus Flashcards
Normal pressure hydrocephalus (NPH) is an abnormal buildup of cerebrospinal fluid (CSF) in the brain’s ventricles (cavities). What is the incidence of NPH?
1 - 600 cases per 100,000
2 - 60 cases per 100,000
3 - 6 cases per 100,000
4 - 0.6 cases per 100,000
3 - 6 cases per 100,000
Affects men and women equally
Normal pressure hydrocephalus (NPH) is an abnormal buildup of cerebrospinal fluid (CSF) in the brain’s ventricles (cavities). What age does the prevalence of NPH peak at?
1 - 20-30
2 - 30-40
3 - 40-50
4 - 60-70
4 - 60-70
What is thought to be the cause of Normal pressure hydrocephalus (NPH)?
1 - increase CSF production
2 - reduced CSF absorption
3 - narrowing of ventricles
4 - narrowing of the foreman magnum
2 - reduced CSF absorption
Ventricles become enlarged
Patients with normal pressure hydrocephalus (NPH) can present with all of the following EXCEPT which one?
1 - urinary incontinence
2 - dementia and bradyphrenia
3 - gait abnormality (may be similar to Parkinson’s disease)
4 - respiratory depression
4 - respiratory depression
3 Ws:
- water/wetting
- wacky
- wobbly
Is normal pressure hydrocephalus (NPH) always idiopathic?
- no
Can occur following head trauma
- May present months after trauma
How is normal pressure hydrocephalus (NPH) diagnosed?
1 - invasive catheter measurement of intracranial pressure
2 - urine diary
3 - renal function
4 - head CT/MRI
4 - head CT/MRI
- enlarged ventricles
- no major sulcus atrophy
Which ventricle is typically enlarged the most in normal pressure hydrocephalus (NPH)?
1 - lateral ventricles
2 - 4th ventricle
3 - 3rd ventricle
4 - cerebral aqueduct
2 - 4th ventricle
What is the definitive treatment for normal pressure hydrocephalus (NPH)?
1 - ventriculoperitoneal shunting
2 - mannitol
3 - repeated spinal taps
4 - furosemide
1 - ventriculoperitoneal shunting
10% of patients who have shunts experience significant complications such as seizures, infection and intracerebral haemorrhages
