Hydrocephalus: Causes, Symptoms & Advanced Treatment

Hydrocephalus is a neurological condition in which there is an abnormal accumulation of cerebrospinal fluid (CSF) in the brain's ventricles. This leads to increased pressure inside the skull, which can affect brain function and development.

Hydrocephalus can occur at any age but is more common in infants and older adults.

What Causes Hydrocephalus?

Hydrocephalus can develop due to several reasons:

Congenital Causes (Present at Birth)

• Genetic abnormalities
• Developmental disorders
• Neural tube defects

Acquired Causes

• Brain tumors
• Head injury
• Brain infections (like meningitis)
• Brain hemorrhage or stroke
• Complications after surgery

Types of Hydrocephalus

1. Communicating Hydrocephalus
CSF flow is blocked after exiting the ventricles.

2. Non-Communicating (Obstructive) Hydrocephalus
Blockage within the ventricular system.

3. Normal Pressure Hydrocephalus (NPH)
Common in older adults, with normal CSF pressure but enlarged ventricles.

4. Congenital Hydrocephalus
Present at birth due to developmental issues.

Symptoms of Hydrocephalus

In Infants:

• Rapid increase in head size
• Bulging soft spot (fontanelle)
• Vomiting
• Irritability
• Seizures

In Adults:

• Headache
• Nausea and vomiting
• Vision problems
• Difficulty walking
• Memory loss
• Loss of balance

In Older Adults (NPH):

• Walking difficulty
• Urinary incontinence
• Memory problems (often mistaken for dementia)

Diagnosis

Early diagnosis is crucial and includes:

• Physical and neurological examination
• MRI scan (most accurate)
• CT scan
• Ultrasound (in infants)

Treatment Options

1. Shunt Surgery (Most Common)
A ventriculoperitoneal (VP) shunt is placed to drain excess fluid from the brain to another part of the body (usually the abdomen).

2. Endoscopic Third Ventriculostomy (ETV)
A minimally invasive procedure where a small opening is created in the brain to allow CSF to flow normally.

3. Combined ETV with Choroid Plexus Cauterization (ETV+CPC)
Used in selected pediatric cases to reduce CSF production.

Recovery and Long-Term Care

• Regular follow-ups are essential
• Shunt monitoring for proper function
• Rehabilitation if needed
• Most patients can lead normal lives with proper treatment

Risks and Complications

Possible complications include:

• Shunt blockage or infection
• Over-drainage or under-drainage of fluid
• Neurological symptoms
• Need for revision surgery