Abstract
Epileptic seizures can be associated with peri-ictal heart rhythm disorders and even sudden death (SUDEP). Few paediatric studies have been conducted on the subject. To determine heart rhythm disorders in paediatric patients with epilepsy who were studied with video-electroencephalogram (video-EEG). Prospective, observational study in patients under 18 years of age admitted for video-EEG at the Hospital Clinico Red de Salud UC-Christus, Santiago, Chile. A neurological and cardiological evaluation and electrocardiogram (ECG) were performed, in addition to a Holter ECG simultaneously with the video-EEG. Twenty-five patients were studied, 12 with refractory epilepsies, 23/25 focal and 20 on polytherapy. Altogether 768 hours of video-EEG were recorded, including 281 seizures in 15 patients: 157 clinical and 103 generalised. There were no serious arrhythmias, only non-specific or probably benign disorders, mainly incomplete right bundle branch block in 11 patients, which were more frequent in refractory epilepsies (p<0.036). Heart rate variation occurred mainly in seizures >30 seconds. No patient presented SUDEP. This is the first prospective study, with a new technique, using video-EEG and Holter ECG simultaneously in paediatrics. Despite the high number of seizures and refractory patients, we found no serious heart rhythm disorders, consistent with the clinical evaluation. Right bundle branch block is considered a non-pathological cardiological finding, but was highly prevalent in our sample compared to the normal population, especially in refractory epilepsy. Given that this is a serious event in epilepsy, it is important to further investigate such studies to assess preventive measures.
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