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5 Cards in this Set
- Front
- Back
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What is hydrocephalus |
It is the dilatation of the ventricles due to blockage of CSF flow, increased production or due to decreased absorption of CSF |
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Classifications |
Congenital or acquired Communicating or non communicating |
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Clinical features |
Large head often causing obstructed labor raised head circumference greater than 2 cm per month and craniofacial disproportion Bulging of anterior fontanelle, engorged scalp veins, scalp thin and shinning, suture line separation Decreased upward gaze(sunsetting eyes) Percussion cracked pot sound heard due to dilated ventricles(Macewen's sign) Delayed milestones, mental retardation, difficulty feeding Features of raised intracranial pressure, lethargy, irritability, ataxia,papilledema,respirstory failure |
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Causes of congenital hydrocephalus |
Failure of formation of CSF pathway Arnold Chiari malformations Congenital stenosis of aqueduct of sylvius |
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Causes of aquired Hydrocephalus |
Chronic meningitis Trauma Subarachnoid hemorrhage Brain tumors Colloid cyst of 3rd ventricle Arachnoid cyst |
