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Published on: September 20, 2024
[Anticonvulsant hypersensitivity syndrome in children]
Ana Ehrhardt Pinheiro1, Raquel Ferreira, Gonçalo Cordeiro Ferreira
1Unidade de Infecciologia, Hospital Dona Estefânia, Lisboa.
Insights
Drug Rash with Eosinophilia and Systemic Symptoms (DRESS) is a severe reaction to antiepileptic drugs. Early recognition of fever, rash, and organ involvement is crucial for diagnosis and treatment.
Area of Science:
- Pharmacology
- Toxicology
- Pediatrics
Background:
- Anticonvulsant hypersensitivity syndrome, or Drug Rash with Eosinophilia and Systemic Symptoms (DRESS), is a rare, potentially fatal multisystem disorder.
- It is primarily associated with aromatic antiepileptic drugs.
Observation:
- A case report details a child treated with sodium valproate for epilepsy who developed a febrile rash.
- The rash appeared 4 weeks after initiating phenobarbital therapy.
Findings:
- Laboratory tests confirmed leukocytosis with eosinophilia, elevated C-reactive protein, and liver enzymes.
- Phenobarbital was discontinued, leading to a gradual and complete recovery.
Implications:
- DRESS syndrome can mimic other serious conditions like infections, immunologic disorders, or neoplasms, potentially delaying diagnosis.
- Prompt exclusion of DRESS is vital when characteristic clinical features and drug exposure are present in patients.
Abstract:
Anticonvulsant hypersensitivity syndrome, or DRESS (Drug Rash with Eosinophilia and Systemic Symptoms), is a rare multisystem disorder, potentially fatal, that occurs after exposure to antiepileptic drugs, mainly aromatic ones. Clinically, this condition is recognized by the classic triad of fever, rash and internal organ involvement that usually develops 1 to 12 weeks after initiation of therapy. We report a case of a child treated with sodium valproate for epilepsy that showed a febrile rash 4 weeks after being medicated with phenobarbital. Laboratory testing revealed leukocytosis with eosinophilia elevated C-reactive protein and liver enzymes. Phenobarbital was suspended, with slow full recovery. This syndrome may mimic infectious, immunologic and neoplastic conditions, which may delay the correct diagnosis, but must be excluded in the presence of characteristic clinical features and drug exposition.
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