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Definition
Reye's syndrome is a serious disorder that causes increased pressure in the brain and build-up of fat in the liver and other organs. It affects all organs of the body, but is most harmful to the brain and liver. Reye's syndrome occurs primarily in children, most often during recovery from a viral infection.
Causes
The cause of Reye's syndrome is unknown. However, studies have found a link with the use of aspirin and other salicylates during a viral illness.
Risk Factors
A risk factor is something that increases your chance of getting a disease or condition.Your risk of Reye's syndrome increases with:
- Age: 2 to 16 years old
- Recent viral illness, including:
- Upper respiratory infection
- Influenza (the flu)
- Chickenpox
- Use of aspirin or other salicylates
Symptoms
Symptoms usually occur after a viral illness, and are divided into five stages:
Stage 1:
- Frequent or persistent vomiting
- Drowsiness and fatigue
- Laboratory evidence of liver dysfunction
Stage 2:
- Personality changes, such as irritability and aggression
- Confusion
- Disordered speech
- Hallucinations
- Deep lethargy
- Hyperventilation
Stages 3 tp 5:
- Coma
- Seizures
- Inability to breathe without help
Brain swelling and other problems in Reye's syndrome progress very quickly. They may result in permanent neurologic damage or death. Call a doctor immediately if you think your child has Reye's syndrome.
Diagnosis The doctor will ask about symptoms and medical history, and perform a physical exam. Tests may include: Liver function teststhese include: SGOT (AST)SGPT (ALT)LDHAmmoniaProthrombin timeSpinal tap (lumbar puncture)insertion of a needle between the lumbar vertebrae in the back to remove spinal fluid for testing Liver biopsy removal of a sample of liver tissue for testing Spinal TapLumbar Puncture Method 2008 Nucleus Medical Art, Inc. Note that certain inherited metabolic disorders can present with signs and symptoms that mimic Reyes syndrome. Some have specific treatments, and all may recurrsometimes fatallyunless diagnosed appropriately. Tests for these disorders (such as ornithine transcarbamylase syndrome) should be done in all children with Reyes syndrome. TreatmentEarly diagnosis and treatment are essential for a successful recovery.Treatment may include: Medication Medications include: CorticosteroidsDiureticsGlucoseInsulinBarbiturates Specific treatments to reduce blood ammonia levels Sodium phenylacetate and sodium benzoateDialysisOndansetron (Zofran) for severe vomiting Arterial CatheterIf symptoms affect the brain, an arterial catheter may be inserted to monitor the pressure, carbon dioxide, and oxygen content of blood.
Pressure MonitoringIn stage 3 to 5 Reyes syndrome, a bolt or other device may be used to monitor pressure within the brain. VentilatorIn advanced stages, a ventilator may be used to assist with breathing. SurgeryA drainage procedure or decompression craniotomy may occasionally be needed to reduce pressure in the brain. Prevention To prevent Reye's syndrome: Aspirin is not recommended for children and teens with a current or recent viral infection. Check with your doctor before giving aspirin to a child or teen. Widespread decline in the use of aspirin for children is one reason why the incidence of Reyes syndrome has decreased dramatically in recent years.Avoid giving children and teens medications that contain salicylates. Examples include Alka-Seltzer, Anacin, Bufferin, and Pepto-Bismol. RESOURCES: American Academy of Pediatricshttp://www.aap.org National Reye's Syndrome Foundationhttp://www.reyessyndrome.org CANADIAN RESOURCES: About Kids Healthhttp://www.aboutkidshealth.ca Alberta Children's Serviceshttp://www.child.alberta.ca/home/ References: Griffith's 5 Minute Clinical Consult . 9th ed. Lippincott, Williams, and Wilkins; 2001. Kleigman RM, Jensen HB, Behrman RE, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, PA: Saunders Elsevier; 2007.
Mayo Foundation for Medical Education and Research website. Available at: http://www.mayo.edu/ . Merck Manual Diagnosis and Therapy . 17th ed. Merck and Co; 1999. Last reviewed November 2007 by Kari L. Kassir, MDPlease be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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