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Non-convulsive status epilepticus induced by antidepressants
H Miyata1, F Kubota, N Shibata
1Department of Neuropsychiatry, Gunma University School of Medicine, Japan.
Seizure
|July 15, 1998
Summary
Antidepressants may trigger non-convulsive status epilepticus (NSE), a rare seizure disorder, in susceptible individuals. This case highlights the importance of considering antidepressants as a potential cause of NSE, even in young patients without prior epilepsy history.
Area of Science:
- Neurology
- Pharmacology
Background:
- Antidepressant medications are widely prescribed for depressive disorders.
- Non-convulsive status epilepticus (NSE) is a prolonged seizure state presenting with altered consciousness, not overt convulsions.
- Previous reports linked antidepressants to NSE, often in patients with confounding factors like electroconvulsive therapy (ECT) or advanced age.
Observation:
- A 27-year-old woman developed drowsiness and was diagnosed with non-convulsive status epilepticus (NSE) via EEG.
- Her NSE onset coincided with the initiation of clomipramine and maprotiline for depression.
- She had no prior history of seizures or epilepsy, nor a family history of the condition.
Findings:
- Discontinuation of clomipramine and maprotiline led to gradual improvement in the patient's drowsiness.
- The clinical presentation and temporal association strongly suggest antidepressants as the probable cause of NSE in this young patient.
- This case expands the understanding of antidepressant-induced adverse neurological events.
Implications:
- Non-convulsive status epilepticus (NSE) should be considered a potential adverse effect of antidepressant treatment.
- Clinicians should maintain a high index of suspicion for drug-induced seizures when patients present with altered mental status during antidepressant therapy.
- Further research is warranted to elucidate the mechanisms and identify risk factors for antidepressant-induced NSE.