2016.03.16 csf pathway abnormalities
TRANSCRIPT
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CSF PathwayObstruction & Clinical correlates
Integrated Teaching session for 1st MBBSDepartment of Neurosurgery
MGMCRI
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CSF pathway Lateral ventricles,Third Ventricle, Fourth Ventricle
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CSF pathway – FormationCSF pathway Formation: Choroid plexus
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• Lateral ventricles
• Third ventricle• Fourth
ventricle
CSF pathway Formation: Choroid plexus
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CSF pathway Formation: Choroid plexus
CSF production is an active process – ATP is spent
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CSF pathway Lateral ventricles-> Third Ventricle
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CSF pathwayCSF pathway Fourth Ventricle -> Subarachnoid space
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CSF pathwaySpinal Subarachnoid space
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CSF pathwayCSF pathwayCSF resorption: Arachnoid granulations
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CSF pathwayCSF resorption: Arachnoid granulations
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CSF pathwayMonro-Kelly Doctrine
Normal ICP: 5-15 mm Hg
Raised ICP: > 20 mm Hg
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CSF pathwayHydrocephalus
MRI of normal ventricles MRI of dilated ventricles
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CSF pathwayHydrocephalus - Adult
HeadacheVomitingAltered sensoriumDiplopia
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CSF pathwayHydrocephalus - Child
MacrocephalyPersistent AF – BulgingSun setting sign
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HydrocephalusTreatment – Ventriculoperitoneal shunt
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HydrocephalusTreatment – Endoscopic Third Ventriculostomy