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Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
Published on: December 18, 2016
Temporal lobe epileptic activity mimicking dementia: a case report
1Dipartimento di Neuroscienze, Università di Roma Tor Vergata, V.le Oxford 81, Rome, Italy. m.tombini@unicampus.it
Abstract:
Epileptic activity is an underdiagnosed cause that can determine a disruption of memory and cognitive performance, leading an incorrect diagnosis of dementia. We report a 68-year-old man, referred with a 5-year history of subtle behavioral changes and a subjective memory impairment, who was admitted to our department because of recurrent episodes of confusional state lasting from 1 week. Neuropsychological evaluation demonstrated a marked impairment of all cognitive domains examined. Electroencephalogram (EEG) recording showed frequent almost continuous sharp waves localized on the bilateral posterior temporal regions with mild right side predominance. Treatment with phenytoin reversed his cognitive dysfunction and behavioral disturbances. We presume that ictal temporal lobe epileptiform activity is the cause of his confusional episodes and cognitive dysfunction, showing an electroclinical picture of complex partial status epilepticus. However, we hypothesize that the interictal discharges and ictal and postictal effects of subclinical seizures could be involved in the behavioral changes and memory impairment complained by our patient in the last years.
Insights
Epileptic activity can mimic dementia, causing cognitive and memory deficits. Prompt diagnosis and treatment with phenytoin successfully reversed these symptoms in a patient with temporal lobe epilepsy.
Area of Science:
- Neurology
- Neurophysiology
Background:
- Epileptic activity is an underdiagnosed cause of cognitive and memory impairment.
- It can be misdiagnosed as dementia, leading to incorrect treatment.
Observation:
- A 68-year-old man presented with behavioral changes and memory loss over 5 years.
- He experienced recurrent confusional states and significant cognitive decline.
Findings:
- Electroencephalogram (EEG) revealed continuous sharp waves in the temporal regions.
- Treatment with phenytoin resolved cognitive dysfunction and behavioral disturbances.
- The patient's condition was consistent with complex partial status epilepticus.
Implications:
- Subclinical seizures may contribute to long-term cognitive and behavioral changes.
- Early detection of epileptic activity is crucial for accurate diagnosis and management.
- This case highlights the importance of considering epilepsy in dementia evaluations.
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Seizures are typically classified into two main categories: focal and generalized seizures.
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Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
