What is Congenital Hydrocephalus? Diagnosis & Treatment

Written by Medicover Team and Medically Reviewed by Dr Neha Mukhi , Pediatricians

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Congenital hydrocephalus happens when there is an excessive buildup of fluid in the brain. This condition can occur during fetal development and may lead to complications. The causes of congenital hydrocephalus are related to abnormalities in the brain's development.

Understanding the underlying factors can help healthcare providers provide appropriate care and support to individuals affected by this condition. If you or a loved one have been diagnosed with congenital hydrocephalus, discussing treatment options with a medical professional is crucial for managing the condition effectively.

What are the Types of Congenital Hydrocephalus?

Congenital hydrocephalus can be categorized into two main types: communicating and non-communicating. Communicating hydrocephalus occurs when cerebrospinal fluid flows normally but is not properly absorbed.

Non-communicating hydrocephalus, on the other hand, happens when there is a blockage that prevents the fluid from flowing freely. Both types can lead to an accumulation of fluid in the brain, causing increased pressure and potential complications.

Communicating Hydrocephalus: In this type, there is a blockage in the flow of cerebrospinal fluid (CSF) within the ventricular system of the brain, leading to an accumulation of fluid in the ventricles.
Non-Communicating Hydrocephalus: Non-communicating hydrocephalus occurs when there is a blockage that prevents CSF from flowing between the ventricles, often caused by a structural issue such as a tumor or cyst.
Acquired Hydrocephalus: While most cases of hydrocephalus are congenital, acquired hydrocephalus can develop later in life due to conditions such as infections, bleeding within the brain, or head trauma.

What are the Symptoms of Congenital Hydrocephalus?

Symptoms of congenital hydrocephalus include an enlarged head, bulging fontanelle, rapid increase in head circumference, vomiting, irritability, seizures, and poor feeding. Other signs can include downward deviation of the eyes (sunsetting sign), difficulty with balance and coordination, and developmental delays.

If your child shows any of these symptoms, seek medical attention promptly for proper evaluation and treatment.

Headaches: People with congenital hydrocephalus may experience frequent headaches due to increased pressure in the brain.
Nausea and Vomiting: Some individuals with congenital hydrocephalus may feel nauseous and vomit, especially in the morning.
Vision Problems: Blurred or double vision can occur in individuals with congenital hydrocephalus due to pressure on the optic nerves.
Changes in Behavior: Some people with congenital hydrocephalus may exhibit irritability, sleepiness, or other changes in behavior.
Poor Coordination: Difficulty with balance and coordination can be a symptom of congenital hydrocephalus, leading to problems with walking or fine motor skills.

What are the Causes of Congenital Hydrocephalus?

Other causes can include brain malformations, bleeding within the brain, or complications during delivery. These factors can disrupt the normal flow or absorption of cerebrospinal fluid in the brain, leading to the accumulation of fluid and subsequent hydrocephalus.

Genetic factors, such as mutations in genes related to brain development, can lead to congenital hydrocephalus in newborns.
Infections during pregnancy, such as toxoplasmosis or rubella, can increase the risk of congenital hydrocephalus in the fetus.
Developmental abnormalities in the brain, such as neural tube defects, can disrupt the flow of cerebrospinal fluid and cause congenital hydrocephalus.
Bleeding in the brain of the fetus, known as intraventricular hemorrhage, can result in congenital hydrocephalus.

When to See a Doctor for Congenital Hydrocephalus?

Congenital Hydrocephalus is a condition present at birth in which excess cerebrospinal fluid (CSF) accumulates within the brain, increasing pressure on the brain and potentially affecting its growth and development.

Early diagnosis and treatment are essential to prevent neurological complications, developmental delays, and vision problems. If your baby or child shows signs of Congenital Hydrocephalus, consult a Pediatrician for a thorough evaluation and timely medical care.

Rapid increase in head size or an unusually large head circumference.
A bulging or tense soft spot (fontanelle) on the baby's head.
Persistent vomiting or poor feeding.
Excessive sleepiness, irritability, or lethargy.
Seizures or unexplained episodes of unconsciousness.
Difficulty moving the eyes downward or persistent abnormal eye movements.
Developmental delays or failure to achieve age-appropriate milestones.
Poor muscle tone, weakness, or balance problems.
Persistent headaches, especially in older children.
Vision changes, poor coordination, or difficulty walking.

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How is Congenital Hydrocephalus Diagnosed?

Congenital hydrocephalus is diagnosed through physical examinations, imaging tests such as ultrasound, CT scans, or MRI, and monitoring symptoms including head growth and developmental delays.

Doctors assess these findings and may recommend a shunt to drain excess fluid from the brain. Early diagnosis and treatment are crucial to manage this condition effectively and prevent complications.

Ultrasound: An ultrasound of the brain is often used to diagnose congenital hydrocephalus in infants by visualizing the enlarged ventricles.
CT Scan: A computed tomography (CT) scan provides detailed images of the brain and can help identify hydrocephalus by showing the accumulation of cerebrospinal fluid.
MRI: Magnetic resonance imaging (MRI) provides detailed views of the brain and helps confirm the presence of hydrocephalus.
Intracranial Pressure Monitoring: In cases where the diagnosis is unclear, measuring the pressure within the brain can help confirm hydrocephalus.

How is Congenital Hydrocephalus Treated?

Treatment options for congenital hydrocephalus may include surgical placement of a shunt to redirect excess cerebrospinal fluid, endoscopic third ventriculostomy (ETV) to create a new drainage pathway, or careful monitoring without immediate intervention.

Your healthcare provider will determine the most appropriate treatment based on individual factors. Regular follow-up visits are essential to monitor progress and make any necessary adjustments.

Surgical placement of a shunt system to drain excess cerebrospinal fluid and relieve pressure on the brain.
Endoscopic Third Ventriculostomy (ETV) to create an alternative pathway for cerebrospinal fluid drainage without a shunt.

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What are the Risk Factors for Congenital Hydrocephalus?

Risk factors for congenital hydrocephalus include genetic conditions, family history, maternal infections during pregnancy, inadequate prenatal care, exposure to certain medications or toxins, prematurity, and specific birth defects.

Understanding these risk factors can help with early detection, timely intervention, and improved outcomes.

Genetic factors, including a family history of hydrocephalus.
Maternal infections during pregnancy, such as toxoplasmosis or rubella.
Exposure to alcohol, certain medications, or harmful chemicals during pregnancy.
Fetal hemorrhage or bleeding within the developing brain.

Frequently Asked Questions

1. How do I recognize the signs of congenital hydrocephalus?

Look for symptoms like an enlarged head, bulging fontanelle, rapid increase in head size, vomiting, irritability, and poor feeding in infants.

2. What are the recommended do's and don'ts for managing congenital hydrocephalus?

Do: Regular follow-ups, shunt monitoring, symptom observation. Don't: Ignore symptoms like headaches or changes in behavior, delay seeking medical help.