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Clinical features of poststroke epileptic seizures

https://doi.org/10.14412/2074-2711-2015-1S-47-53

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Abstract

Poststroke epileptic seizures are detected in 30–40% of patients over 60 years of age.
Objective: to explore the clinical features of epileptic seizures in stroke, risk factors for their development to form the bases for prediction and elaboration of optimal therapy.
Patients and methods. 468 patients with ischemic stroke were examined. A study group included 265 patients (176 men and 89 women) aged 31–89 years with epileptic seizures; a control group comprised 203 non-epileptic patients (126 men and 77 women) aged 31–91 years. The patients of both groups were matched for age, clinical characteristics, and pathogenetic subtypes of stroke. Instrumental examinations were performed in the attack-free interval. Neurological status was evaluated using the conventional procedure (the National Institute of Health Stroke Scale); brain magnetic resonance imaging (MRI), magnetic resonance angiography, electroencephalography, extraand transcranial duplex sound of cerebral vessels, by estimating the level and degree of stenosis and cerebrovascular responsiveness.
Results and discussion. Focal seizures were noted to more frequently develop with a preponderance of simple partial seizures within the first 7 days of stroke, with neurological worsening in the acute period of the disease. Stroke in the left carotid and vertebrobasilar beds may provoke the development of early seizures. The cortical localization of ischemic foci and pre-stroke chronic brain ischemia with the signs of circulatory comorbidity in the anterior and posterior circulatory systems may be a risk factor of epileptic seizures. There was an association of the type of an epileptic seizure and the size of an ischemic focus, as evidenced by MRI, with a tendency towards the generalization of seizures in the extensive ischemic foci. A tendency toward the generalization of epileptic seizures was established in the development of stroke in the left carotid bed, as well as in critical stenoses and occlusions of the great cerebral vessels. 

About the Author

T. V. Danilova
Interregional Clinical Diagnostic Center, Kazan State Medical University, Ministry of Health of Russia, Kazan, Republic of Tatarstan, Russia 12a, Karbyshev St., Kazan 420101, Republic of Tatarstan
Russian Federation


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For citation:


Danilova T.V. Clinical features of poststroke epileptic seizures. Neurology, Neuropsychiatry, Psychosomatics. 2015;7(1S):47-53. (In Russ.) https://doi.org/10.14412/2074-2711-2015-1S-47-53

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ISSN 2074-2711 (Print)
ISSN 2310-1342 (Online)