What is Reye's syndrome?
Reye's syndrome is a rare illness that can be
life-threatening. It usually follows a viral infection such
as influenza, chickenpox, or an upper respiratory infection.
Reye's syndrome is seen most often in children under 15
years of age.
The illness causes:
- low blood sugar
- high levels of acid and ammonia in the blood
- swelling of the brain
- buildup of fat and swelling in the liver. This causes
the liver to not work well and not make the normal amount
of blood clotting proteins.
What is the cause?
The exact cause of Reye's syndrome is unknown. Viral
infections and the use of aspirin are factors in almost all
cases. Children with certain inherited, or genetic,
problems may also be at a higher risk for Reye's syndrome.
For example, children who have a problem handling waste
products produced by the body (such as ammonia).
Children 18 years or younger should not be given aspirin in
any form for any reason unless told by your health care
provider.
What are the symptoms?
Symptoms for Reye's syndrome usually begin 3 to 5 days after
the start of a viral infection and include:
- fever
- nausea and persistent vomiting for 1 to 3 days
- a gradual decrease in awareness and increased confusion as brain swelling increases. Seizures are common.
If your child has these symptoms, contact your health care
provider immediately. Get emergency help if your child
loses consciousness, is having convulsions, or is very
confused.
How is it diagnosed?
Your provider will want to test your child's blood and
spinal fluid to check for infection. To test the spinal
fluid, your child will need to have a test called a lumbar
puncture (spinal tap). A lumbar puncture is a procedure in
which a hollow needle is inserted in the spinal canal in the
lower back to drain a small amount of spinal fluid. This
procedure is very safe. A very small piece of your child's
liver may also need to be tested. This is called a liver
biopsy.
What is the treatment?
Early diagnosis is the key to successful treatment. There
is no cure for the illness. Children with Reye's syndrome
must be treated at a hospital. The main focus of treatment
is to reduce the pressure on the swollen brain. Pressure is
reduced with medicine given through a vein (IV) and by
control of the breathing. Children with severe cases need
to have a breathing tube placed in their airway and be
ventilated. This helps reduce brain swelling. A pressure
monitor is usually placed into the brain to check how much
medicine is needed to control the abnormally high pressure.
Your child will have blood tests to determine how well the
liver is working. Glucose (blood sugar) will be carefully
checked and IV fluids with glucose will be given. Because
the liver also produces proteins that are responsible for
blood clotting, your child may need plasma and blood
platelet transfusions. If your child has seizures, medicine
will be given to control them.
How long does it last?
The length of time spent in the hospital is different for
each child. Most children, however, will have completely
recovered in 2 to 3 months. If the disease is serious, your
child may have some brain damage. Reye's syndrome is fatal
for some children.
How can Reye's syndrome be prevented?
The best way to reduce the risk of Reye's syndrome is to
never give aspirin or any products containing salicylate
(such as Pepto-Bismol) to any child 18 years or younger
unless specifically told to by your health care provider.
You can give your child acetaminophen or ibuprofen for pain
relief or fever.


Disclaimer: This content is reviewed periodically and is subject to
change as new health information becomes available. The
information provided is intended to be informative and educational and is not a
replacement for professional medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
HIA File CHL3760F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.
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