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ECG changes in epilepsy patients

S Tigaran1, V Rasmussen, M Dam

  • 1University Clinic of Neurology, Hvidovre Hospital, Denmark.

Acta Neurologica Scandinavica
|August 1, 1997
PubMed
Summary
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Patients with severe drug-resistant epilepsy experienced electrocardiogram (ECG) abnormalities, including ST segment changes, often coinciding with seizures. These findings may be significant for understanding sudden unexpected death in epilepsy (SUDEP).

Area of Science:

  • Cardiology
  • Neurology
  • Epileptology

Background:

  • Sudden unexpected death in epilepsy (SUDEP) is a significant concern.
  • Cardiac abnormalities may play a role in SUDEP.
  • The relationship between epilepsy and cardiac events requires further investigation.

Purpose of the Study:

  • To determine the frequency of ECG abnormalities suggestive of myocardial ischemia in patients with severe drug-resistant epilepsy.
  • To explore the potential link between these ECG changes and SUDEP.

Main Methods:

  • Simultaneous long electrocardiogram (ECG) and electroencephalogram (EEG) recordings were performed in 12 patients with medically intractable epilepsy.
  • Recordings were conducted during epilepsy surgery investigations, diagnostic programs, or status epilepticus.

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Main Results:

  • One patient with chest pain and ECG changes suggestive of myocardial infarction died of cardiac arrest.
  • Eight epilepsy patients exhibited ST segment depression, often concurrent with epileptic seizures.
  • Patients with simple partial seizures, absence seizures, or status epilepticus did not consistently show ST segment depression.

Conclusions:

  • Severe drug-resistant epilepsy patients can experience ST segment changes, some linked to seizures.
  • Further research is necessary to validate these findings.
  • Investigating the nature of these changes and the efficacy of prophylactic cardioactive drugs for SUDEP risk reduction is warranted.