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Repeated self-induced syncope and subsequent seizures. A case report.
Archives of Neurology
|December 1, 1983
Summary
A patient repeatedly induced syncope through carotid artery compression, leading to seizures. Researchers hypothesize this self-induced cerebral ischemia caused brain scarring and subsequent epilepsy, reinforced by the brain's reward system.
Area of Science:
- Neurology
- Neurophysiology
- Pathophysiology
Background:
- Recurrent syncope can be challenging to differentiate from seizure disorders with involuntary movements.
- Self-induced syncope is rare and its long-term consequences are not well-documented.
Observation:
- A patient presented with a history of self-induced syncope via bilateral carotid artery compression over several years.
- Electroencephalography (EEG) revealed cerebral ischemia during syncope and epileptogenic foci in the temporal lobes after sleep deprivation.
Findings:
- The study hypothesizes that repeated self-induced ischemic insults to the brain led to the development of a cerebral cicatrix.
- This cicatrix is proposed as the cause of the patient's frequent seizure disorder.
- The ischemia likely acted as a stimulus to the limbic system's reward site, reinforcing the self-induced behavior.
Implications:
- This case highlights a potential mechanism linking self-induced cerebral ischemia to secondary epilepsy.
- Understanding the interplay between self-harm, ischemia, and neurological disorders is crucial for diagnosis and treatment.
- Further research may explore the neurobiological basis of self-induced injurious behaviors with neurological consequences.