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Hydrocephalus
Hydrocephalus occurs when excess fluid builds up in your brain, most often because of an obstruction preventing proper fluid drainage. The excess fluid can compress surrounding, fragile brain tissue, causing brain damage. Left untreated, hydrocephalus can be fatal.
Once known as "water on the brain," hydrocephalus is sometimes present at birth, although it may develop later. About 1 out of 500 children is born with the disorder. The outlook if you have hydrocephalus depends on how quickly the condition is diagnosed and whether any underlying disorders are present.
Symptoms of Hydrocephalus:-
The signs and symptoms of hydrocephalus vary by age group and disease progression.
In infants, common signs and symptoms of hydrocephalus include:
- An unusually large head
- A rapid increase in the size of the head
- A bulging "soft spot" on the top of the head
- Vomiting
- Sleepiness
- Irritability
- Seizures
- Eyes fixed downward (sunsetting of the eyes)
- Developmental delay
In older children and adults, common signs and symptoms of hydrocephalus include:
- Headache followed by vomiting
- Nausea
- Blurred or double vision
- Eyes fixed downward (sunsetting of the eyes)
- Problems with balance, coordination or gait
- Sluggishness or lack of energy
- Slowing or regression of development
- Memory loss
- Confusion
- Urinary incontinence
- Irritability
- Changes in personality
- Impaired performance in school or work
Hydrocephalus produces different combinations of these signs and symptoms, depending on its cause, which also varies by age. For example, a condition known as normal pressure hydrocephalus, which mainly affects older people, typically starts with difficulty walking. Urinary incontinence often develops, along with a type of dementia marked by slowness of thinking and information processing.
Infants and toddlers require emergency medical care for these signs and symptoms:
- A high-pitched cry
- Problems with sucking or feeding
- Unexplained, recurrent vomiting
- Exhibiting an unwillingness to bend or move the neck or head
- Breathing difficulties
- Seizures
The following signs and symptoms don't constitute an emergency, but they do warrant a call to your child's doctor:
- A rapid increase in the size of the head
- A bulging "soft spot" on the top of the head
- A change in the appearance of the face or eyes
- A decreased level of interest or engagement in social interactions
Older adults need a complete physical and neurological exam if experiencing:
- Walking difficulties
- Impaired thinking
- Urinary incontinence
Causes of Hydrocephalus:-Hydrocephalus is caused by excess fluid buildup in your brain.
Your brain is the consistency of gelatin, and it floats in a bath of cerebrospinal fluid. This fluid also fills large open structures, called ventricles, which lie deep inside your brain. The fluid-filled ventricles help keep the brain buoyant and cushioned.
Cerebrospinal fluid flows through the ventricles by way of interconnecting channels. The fluid eventually flows into spaces around the brain, where it's absorbed into your bloodstream.
Keeping the production, flow and absorption of cerebrospinal fluid in balance is important to maintaining normal pressure inside your skull. Hydrocephalus results when the flow of cerebrospinal fluid is disrupted — for example, when a channel between ventricles becomes narrowed — or when your body doesn't properly absorb this fluid.
Risk Factors of Hydrocephalus:- Premature infants have an increased risk of severe bleeding within the ventricles of the brain (intraventricular hemorrhage), which can lead to hydrocephalus.
Certain problems during pregnancy may increase an infant's risk of developing hydrocephalus, including:
- An infection within the uterus
- Problems in fetal development, such as incomplete closure of the spinal column
Congenital or developmental defects not apparent at birth also can increase older children's risk of hydrocephalus.
Other factors that increase your risk of hydrocephalus include:
- Lesions or tumors of the brain or spinal cord
- Central nervous system infections
- Bleeding in the brain
- Severe head injury
Prevention of Hydrocephalus:-To reduce the risk of hydrocephalus:
- If you're pregnant, get regular prenatal care. Following your doctor's recommended schedule for checkups during pregnancy can reduce your risk of premature labor, which places your baby at risk of hydrocephalus and other complications.
- Protect against infectious illness. Follow the recommended vaccination and screening schedules for your age and sex. Preventing and promptly treating the infections and other illnesses associated with hydrocephalus may reduce your risk.
To prevent head injury:
- Use appropriate safety equipment. For babies and children, use a properly installed, age- and size-appropriate child safety seat on all car trips. Make sure all your baby equipment — crib, stroller, swing, highchair — meets all safety standards and is properly adjusted for your baby's size and development. Older children and adults should wear a helmet while riding a bicycle, skateboard, motorcycle, snowmobile or all-terrain vehicle.
- Always wear a seat belt in a motor vehicle. Small children should be secured in child safety seats or booster seats. Depending on their size, older children may be adequately restrained with seat belts.
Should you be vaccinated against meningitis?
Ask your doctor if you or your child should receive a vaccine against meningitis, once a common cause of hydrocephalus. A meningitis vaccine is now recommended for people ages 2 and older who are at increased risk of this disease due to:
- Traveling to countries where meningitis is common
- Having an immune system disorder called terminal complement deficiency
- Having a damaged spleen or having had your spleen removed
- Living in a dormitory as a college freshman
- Joining the military