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Reye's syndrome: relapses and neurological sequelae
Insights
Reye's syndrome in children can range from mild to fatal. Early EEG grading is crucial for predicting outcomes, as interventions like peritoneal dialysis showed limited benefit.
Area of Science:
- Pediatrics
- Neurology
- Infectious Diseases
Background:
- Reye's syndrome is a serious condition affecting children.
- Early diagnosis and understanding of prognostic factors are vital.
Purpose of the Study:
- To analyze clinical features, outcomes, and treatment effectiveness in pediatric Reye's syndrome cases.
- To evaluate the prognostic value of electroencephalogram (EEG) and the utility of peritoneal dialysis.
Main Methods:
- Retrospective review of 22 pediatric patients diagnosed with Reye's syndrome between 1970 and 1975.
- Analysis of clinical presentation, laboratory findings, EEG grading, and treatment interventions.
Main Results:
- Severity varied, with some cases being fatal. Five patients received recent vaccinations, and four experienced relapses.
- Neurological sequelae were observed in six children. Patients with severe EEG grades (IV-V) had a 100% mortality rate.
- Peritoneal dialysis did not alter the outcome predicted by initial EEG findings.
Conclusions:
- EEG grading on admission is a strong predictor of mortality in Reye's syndrome.
- Peritoneal dialysis appears to have limited therapeutic value in managing severe Reye's syndrome.
Abstract:
Twenty-two children aged 2 months to 11 years were seen at our institution from January 1970 to March 1975 with clinical, laboratory, and/or histological features consistent with the diagnosis of Reye's syndrome. There were three pairs of siblings. Severity of the illness ranged from relatively benign to rapidly fatal forms. Five received live attenuated vaccines within the three weeks prior to admission. Four relapsed 1 to 21 months after the initial episode, and in one there were multiple recurrences. Six developed major neurological sequelae. All patients graded levels IV and V by EEGs on admission subsequently died in contrast to none from grades 1 and 2. Peritoneal dialysis was carried out in the more severely affected patients. The procedure did not influence final outcome as predicted by the first EEG and is thought to be of limited value.