Dyke–Davidoff–Masson syndrome is a possible cause of several pathologies and has rare appearance in clinical practice. One of these causes is a perinatal stroke. The man 59‑year‑old applied to the Federal center of brain and neurotechnologies had this one. The patient had bilateral tonic‑clonic seizures with loss of consciousness, and remission was observed during the last 4 years with antiepileptic drugs treatment. Complex radiological and func‑ tional diagnostics were performed with electroencephalography, magnetic resonance imaging, magnetic resonance tractography, functional magnetic resonance imaging. As a result of research many signs of Dyke–Davidoff–Masson syndrome were found. On the example of damage in the perinatal period and subsequent adaptation of the brain, its plasticity with respect to speech function was shown.

Aim.To assess the characteristics and prevalence of cardiac rhythm disorders in epilepsy patients during the iktal period, by long term ECG monitoring.Material and methods.To the study, 79 patients included, age 18 to 51 y. o. with confirmed diagnosis of focal epilepsy with continuing attacks regardless the antiepilepsy treatment. For rhythm disorder screening, all patients underwent implanting of subcutaneous ECG monitors.Results.Disorders of cardiac rhythm and conduction during the iktal period were found in 88,61% cases. Most prevalent were sinus tachycardia (59,5%, 47 cases), cardiac rhythm and conduction disorders (29%, 23 cases). In 9 cases (11,4%) there were no cardiac rhythm and conduction disorders registered. Also, the probable predictors found, of the disorders of cardiac rhythm in epilepsy patients. Patients gender, type of attacks, frequency, circadian specifics were the markers influencing the rate of iktal cardiac rhythm changes.Conclusion.Sinus tachycardia, rhythm and conduction disorders are registered in most of patients during the iktal period and significantly more common in males, the patients with bilateral tonic and clonic seizures, serial course of the attacks and in the patients with sleep-related seizures. Evaluation of antiepilepsy treatment influence on the prevalence of iktal rhythm and conduction disorders did not reveal significant difference for none of the drug groups. Also, there was no significant differences in comparison of the studied parameters for polyand monotherapy by anticonvulsants.