Related Experiment Video
Updated: Jan 20, 2026
Microinjectrode System for Combined Drug Infusion and Electrophysiology
Published on: November 13, 2019
[Results of long-lasting drug intake on child development; clinical and electrophysiological study during drug
Insights
Anticonvulsant medication withdrawal in a child with atypical seizures led to improved behavior and sleep. EEG abnormalities also resolved, suggesting potential iatrogenic effects of long-term therapy.
Area of Science:
- Pediatric Neurology
- Clinical Pharmacology
Background:
- A child with atypical seizures received continuous anticonvulsant medication, primarily barbiturates, from 8 months of age.
- Medication was discontinued at 7.7 years old, after which the child presented with autistic-like syndrome, sleep disturbances, learning difficulties, and EEG abnormalities.
Observation:
- The child was managed in a Day Hospital setting following medication withdrawal.
- Significant EEG abnormalities, including paroxysmal discharges, were noted during waking and sleep states.
Findings:
- EEG abnormalities gradually decreased and resolved over several months of anticonvulsant withdrawal.
- Concurrent behavioral improvements and resolution of sleep disturbances were observed during the withdrawal period.
Implications:
- This case highlights the potential for iatrogenic effects from early and continuous anticonvulsant therapy, even at non-toxic plasma levels.
- It suggests a possible link between long-term anticonvulsant use and the development or exacerbation of autistic-like symptoms and EEG disturbances.
Abstract:
The case of a child under continuous anticonvulsant medication, especially barbiturate, since the age of 8 months for atypical seizures is reported. Medication was withdrawn when the child was 7.7 years old. The child was then under care in a Day Hospital with an autistic-like syndrome associated with important disturbances of sleep-waking regulation, complete learning incapability and major EEG abnormalities. The EEG paroxysmal discharges observed in the waking and all-night sleep records gradually decreased and then disappeared as the withdrawal was pursued over a period of several months. During the same period, the child's behaviour markedly improved and his sleep disturbances disappeared. The possibility of iatrogenic effects of early and continuous anti-convulsant therapies is discussed, even though the drug plasma levels remain within ranges generally considered as non-toxic.
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