What are the survival rates for Reye syndrome?

Updated: Apr 02, 2018
  • Author: Debra L Weiner, MD, PhD; Chief Editor: Kirsten A Bechtel, MD  more...
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Patients who survive may recover completely. The 1980-1997 US data indicate full recovery in 62% of the 1134 patients with known outcomes. Survivors are at increased risk for long-term neurologic sequelae if ammonia levels exceed 45 µg/dL, if they have stage 2-5 disease, or if they are younger than 5 years. Approximately 3% of patients have neurologic sequelae if ammonia levels are below 45 µg/dL, whereas nearly 11% have sequelae if levels are above 45 µg/dL, with a relative risk of 4.1 (95% CI, 1.2-14).

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