Hydrocephalus is a medical condition that occurs when there is an abnormal accumulation of cerebrospinal fluid (CSF) within the brain's ventricles. This excess fluid increases pressure inside the skull and can cause serious brain damage if not treated promptly.

What is Hydrocephalus?

The term Hydrocephalus literally means "water on the brain" — though the fluid is not actually water but cerebrospinal fluid, which normally circulates around the brain and spinal cord to cushion and protect them. In hydrocephalus, either too much CSF is produced, absorption is impaired, or flow is blocked.

Types of Hydrocephalus

  • Congenital Hydrocephalus: Present at birth, often due to developmental issues.
  • Acquired Hydrocephalus: Develops after birth due to injury, disease, or tumor.
  • Normal Pressure Hydrocephalus (NPH): Seen in older adults; the ventricles enlarge without a significant rise in pressure.
  • Communicating vs. Non-communicating: Depending on whether CSF can flow freely between ventricles.

Symptoms of Hydrocephalus

Symptoms vary by age:

  • Infants: Rapidly increasing head size, bulging fontanelle (soft spot), vomiting, sleepiness, downward-fixed eyes ("sunset sign").
  • Older children & adults: Headache, nausea, blurred vision, balance problems, difficulty walking, cognitive decline, urinary incontinence.

Causes

Hydrocephalus may result from: meningitis, brain tumors, head trauma, subarachnoid hemorrhage, or may be idiopathic (unknown cause).

Diagnosis

Diagnosis typically involves a clinical assessment along with imaging studies such as MRI or CT scan to visualize ventricular size and fluid accumulation.

Treatment Options

The primary treatment for hydrocephalus is surgical:

  • Ventriculoperitoneal (VP) Shunt: A tube is inserted to drain excess CSF from the brain to the abdominal cavity.
  • Endoscopic Third Ventriculostomy (ETV): A small hole is made in the floor of the third ventricle to allow CSF to bypass the blockage — particularly useful in obstructive hydrocephalus.

Dr. Shailesh Jain at Arihant Neuro performs both VP shunt placement and ETV procedures with expert precision and excellent outcomes.

Prognosis

Early diagnosis and timely surgical treatment greatly improve outcomes. Many patients, especially children, can lead normal lives with appropriate follow-up and management.