The changing clinical pattern of Reye's syndrome 1982-1990

Area of Science:

• Pediatric Neurology
• Epidemiology
• Public Health

Background:

• Reye's syndrome is a rare but serious condition affecting children and teenagers.
• Aspirin use in children has been linked to Reye's syndrome.
• Public health warnings regarding aspirin use were issued in June 1986.

Purpose of the Study:

• To analyze trends in Reye's syndrome clinical patterns in the British Isles from 1982 to 1990.
• To investigate the impact of the June 1986 aspirin warnings on Reye's syndrome incidence and presentation.

Main Methods:

• A scoring system was developed to classify Reye's syndrome cases based on clinical and pathological features.
• Multivariable analysis explored relationships between 'Reye scores' and variables like aspirin use.
• Data from 445 cases reported between 1982 and 1990 were analyzed.

Main Results:

• A significant decline in Reye's syndrome cases was observed after June 1986.
• Cases with high 'Reye scores' (typical of classical Reye's syndrome) showed a greater decline (79%) compared to lower-scoring cases (50%).
• High scorers were significantly more likely to have received aspirin and were older.

Conclusions:

• The decrease in Reye's syndrome post-warning is not solely due to improved diagnosis of other conditions.
• The greater reduction in high-scoring Reye's syndrome cases suggests a continued role for aspirin in a subset of patients.
• Reye's syndrome is likely a heterogeneous condition, encompassing Reye-like inherited metabolic disorders and aspirin-associated cases.