P-wave dispersion doesn't increase in patients with epilepsy

Area of Science:

• Cardiology
• Neurology
• Clinical Electrophysiology

Background:

• Epileptic seizures are occasionally linked to cardiac conditions like atrioventricular blocks and long QT syndrome.
• P-wave dispersion (PWD), the difference between longest (P max) and shortest (P min) P-wave duration, is a precursor to atrial fibrillation.
• Atrial fibrillation can lead to microthromboembolism, potentially causing neurological events like seizures.

Purpose of the Study:

• To investigate P-wave dispersion (PWD) in patients with epilepsy.
• To test the hypothesis that microthromboembolism, secondary to atrial fibrillation, may contribute to epileptic seizures.

Main Methods:

• Electrocardiograms (ECGs) were analyzed for 75 epilepsy patients and 50 healthy controls.
• P max, P min, and PWD were calculated for all subjects.
• Statistical analysis compared PWD values between the epilepsy and control groups.

Main Results:

• No statistically significant difference in P max, P min, or PWD was observed between epilepsy patients and healthy controls.
• Mean PWD was 57.6±8.3 ms in epilepsy patients versus 46.8±7.1 ms in controls (p>0.05).

Conclusions:

• P-wave dispersion does not appear to increase in patients with mixed types of epilepsy.
• The findings suggest that microthromboembolism from atrial fibrillation is unlikely to be a cause of epileptic seizures in individuals without structural heart disease.