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Cardiac arrhythmias in the differential diagnosis of epilepsy
U Nousiainen1, E Mervaala, M Uusitupa
1Department of Clinical Neurophysiology, Vaajasalo Epilepsy Hospital, Kortejoki, Finland.
Insights
Cardiac arrhythmias can mimic seizures, complicating diagnosis. Pacemakers resolved arrhythmia-induced attacks, while simultaneous EEG and ECG monitoring aided in differentiating seizure causes.
Area of Science:
- Cardiology
- Neurology
- Medical Diagnostics
Background:
- Distinguishing between seizures and cardiac arrhythmia-induced events is clinically challenging.
- Cardiac arrhythmias can present with symptoms mimicking neurological disorders.
- Accurate diagnosis is crucial for effective patient management.
Observation:
- Two patients experienced attacks resembling psychogenic or epileptic seizures due to cardiac conduction disturbances.
- These attacks ceased after the implantation of a demand-type pacemaker.
- A third patient presented with epileptic seizures that triggered cardiac arrhythmias.
Findings:
- Pacemaker implantation effectively treated seizure-like attacks caused by cardiac conduction abnormalities.
- Simultaneous ambulatory electroencephalography (EEG) and electrocardiography (ECG) monitoring proved vital for differential diagnosis.
- This highlights the complex interplay between cardiac and neurological systems.
Implications:
- Highlights the importance of considering cardiac causes in patients presenting with seizure-like symptoms.
- Emphasizes the utility of combined ambulatory EEG and ECG monitoring in complex diagnostic cases.
- Suggests pacemakers as a potential treatment for specific types of syncope or seizure-like events with cardiac origins.
Abstract:
Symptomatic attacks or seizures associated with cardiac arrhythmias may cause difficulty in differential diagnosis. Two patients are reported in whom disturbances of cardiac conduction induced attacks which clinically resembled attacks of psychogenic and epileptic origin and were abolished after implantation of a demand-type pacemaker. A third patient is described who had epileptic seizures resulting in cardiac arrhythmias. In the differential diagnosis of these cases, simultaneous ambulatory EEG and ECG recording was essential.