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Vigabatrin and behaviour disorders: a retrospective survey
Epilepsy Research
|September 1, 1996
Summary
Vigabatrin, an anticonvulsant, may cause psychosis in severe epilepsy patients and depression in those with a history of mood disorders. Careful patient selection and monitoring are advised for these behavioral side effects.
Area of Science:
- Neuroscience
- Pharmacology
- Psychiatry
Background:
- Vigabatrin is an anticonvulsant with a generally favorable side-effect profile.
- Behavioral disorders, including agitation, depression, and psychosis, have been reported in clinical trials.
Purpose of the Study:
- To investigate the characteristics of behavioral problems associated with vigabatrin treatment.
- To compare patients experiencing psychosis or depression on vigabatrin with control groups.
Main Methods:
- Follow-up study of 136 reported cases of behavioral problems.
- Analysis of clinical information from 81 patients, categorizing them into psychosis or depression groups.
- Comparison with epilepsy patients with psychosis who never took vigabatrin and vigabatrin users without behavioral issues.
Main Results:
- Psychosis emerged in patients with more severe epilepsy, often linked to a right-sided EEG focus and seizure suppression.
- Depression was associated with a prior history of depressive illness, with minimal change in seizure frequency.
- Satisfactory clinical data were obtained for 81 patients, with 50 meeting criteria for psychosis or depression.
Conclusions:
- Vigabatrin-induced psychosis is linked to epilepsy severity and EEG findings.
- Vigabatrin-induced depression is associated with a history of mood disorders.
- Management strategies for vigabatrin-related behavioral disorders are suggested.