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  #1  
Old 04-18-2014
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Default Normal pressure hydrocephalus

Hi
Can anyone tell me about normal pressure hydrocephalus pathophysiology.
Thanks
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Old 04-18-2014
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Mostly seen in old age during increased subarach space which distrucpt d corona raidiata causing bladder incontinence ataxia and dementia

Hydrocephalus ex evacuio also has normal pressure hydroceplahus due post infection atrophy seen mostly after hsv hzv and in all ages...


Dats wat I know. ... hope it helps
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Old 04-18-2014
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yes but when I read it in my 2013 FA it was written it results in increased subarachnoid space volume, but when I compared it with FA 2014 I was wondering why it is written it DOES NOT result is increased subarachnoid space! which one is correct?

What I know also as u said :
*Mostly in OLD age
*Mostly idiopathic
*increased CSF production--> subarachnoid space volume INCREASED & ventricles expand
*stretching corona radiata --> TRIAD:
1) Wide-based apraxic "magnetic" gait
2) Urinary incontinence
3) Dementia
Symptoms improve with LP or VP shunt.
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Old 04-18-2014
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Quote:
Originally Posted by StateoftheArt View Post
yes but when I read it in my 2013 FA it was written it results in increased subarachnoid space volume, but when I compared it with FA 2014 I was wondering why it is written it DOES NOT result is increased subarachnoid space! which one is correct?

What I know also as u said :
*Mostly in OLD age
*Mostly idiopathic
*increased CSF production--> subarachnoid space volume INCREASED & ventricles expand
*stretching corona radiata --> TRIAD:
1) Wide-based apraxic "magnetic" gait
2) Urinary incontinence
3) Dementia
Symptoms improve with LP or VP shunt.
theoretically subarachnoid space should increase
NPH is caused from decreased CSF absorption which in the beginning increases CSF pressure--------->dilates ventricles and subarachnoid space
eventually CSF production matches its absorptive capacity and pressure normalizes
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Old 04-18-2014
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Quote:
Originally Posted by MedicalExaminer View Post
theoretically subarachnoid space should increase
NPH is caused from decreased CSF absorption which in the beginning increases CSF pressure--------->dilates ventricles and subarachnoid space
eventually CSF production matches its absorptive capacity and pressure normalizes


exactly my point medicalexaminer

may b fa 2014 has a printing mistake or i might b wrong watever may b d case i'll look into and post it if ders a change.

i request u guys to do d same... thanks every1 .
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Old 04-21-2014
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Quote:
Originally Posted by MedicalExaminer View Post
decreased CSF absorption
Yes deacresed CSF absorption not increased CSF production you are right MedicalExaminer. Thanks!
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  #7  
Old 04-23-2014
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Default NPH

the pathophysiology is not known...it is impaired CSF reabsorption at the arachnoid granulations...(check wiki)...
no increased subarachnoid space volume
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