Hydrocephalus Program
Houston Methodist’s Hydrocephalus Program experts include neurologists, physical therapists, neuropsychologists, urologists, orthopedists and ophthalmologists who manage all hydrocephalus types and offer the most advanced techniques to provide the best possible care — from various shunts to minimally invasive endoscopic procedures. We tailor treatments based on each patient’s specific needs.
Hydrocephalus Types and Causes
• Communicating – occurs when cerebrospinal fluid (CSF) flow is blocked after it exits the ventricles. Causes include:
o An infectiono A cranial cavity bleed
o Raised venous pressure in the venous sinuses
• Noncommunicating – also called obstructive hydrocephalus, occurs when CSF flow is blocked along at least one passage connecting the ventricles. Causes include:
o Brain tumorso Vascular malformationso Congenital malformationso Aqueductal stenosis – narrowing of the aqueduct of Sylvius, which blocks CSF cerebrospinal fluid flow in the ventricular systemo Colloid cysts – contain gelatinous material in the braino Pituitary gland masseso Dandy Walker malformation ¬– a rare congenital malformation involving the cerebellum and fourth ventricleo Chiari malformation – a condition present at birth in which brain tissue extends into the spinal canalo Myelomeningocele – a spine and spinal cord defecto Bleeding or infection
• Normal pressure hydrocephalus (NPH) – CSF drainage gradually becomes blocked and fluid slowly builds up
• Idiopathic intracranial hypertension (IIH) – an abnormal increase in CSF pressure for unknown reasons, but is not hydrocephalus
Symptoms
Hydrocephalus symptoms vary, depending on age and disease progression. They can include:
• Headache• Difficulty waking or staying awake
• Coordination or balance loss
• Bladder control loss or frequent urination urges
• Impaired vision
• Decline in memory, concentration or reasoning skills
• Difficulty walking – a shuffling gait or the feeling of the feet being stuck
• Slower than normal movements
Diagnosis
• Neurological exam to judge:
o Muscle condition
Reflexes Muscle strength and tone
o Sensories
Touch Vision and eye movement Hearing
o Movement
Coordination Balance
o Psychiatric condition
Mental status Mood
• Brain imaging
o Ultrasoundo Magnetic resonance imaging (MRI)o Computerized tomography (CT) scan
• Lumbar puncture or lumbar drain trial – used for NPH patients to evaluate for symptom improvement and determine whether permanent CSF diversion will benefit the patient
Treatments
• Shunt – a surgical drainage system insertion involving a tube with a valve, which allows fluid from the brain to flow properly
• Endoscopic third ventriculostomy – a surgical procedure using a small video camera to see inside the brain and make a hole in the bottom of a ventricle or between ventricles to allow CSF to flow out of the brain
• Diuretic therapies ¬ treatments that decrease CSF production, which can be used alone or with surgical therapies. Some IIH patients respond well to diuretics alone
