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KMID : 0877220060100020139
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Journal of Korean Epilepsy Society
2006 Volume.10 No. 2 p.139 ~ p.145
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The Clinical Characteristics and the Prognosis of Poststroke Seizures after Ischemic Cerebral Infarction
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Kim Hee-Jin
Kang Hee-Jin
Kim Jee-Hyun
Park Kee-Duk
Choi Kyoung-Kyu
Lee Hyang-Woon
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Abstract
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Background: Although stroke is one of the most frequent causes of seizures in adulthood, there has been constant controversy concerning risk factors and prognosis of poststroke seizures. This study was performed to investigate clinical manifestations, risk factors and prognosis in patients with poststroke seizures (PSS).
Methods: A total of 2048 patients with cerebral infarction were recruited for this study. Patients with PSS were reviewed retrospectively regarding stroke subtype, etiology, lesion location, and functional disability of the stroke as well as seizure types, treatment and recurrence rate. Patients with traumatic or hemorrhagic brain lesion or a history of previous seizures were excluded.
Results: PSS developed in 4.2% of ischemic stroke patients (85/2048; 46 men and 39 women, mean age 65.4 years). PSS developed within one week of stroke onset in 18.8% (16/85) whereas after one week in 81.2% (69/85). PSS was more common in patients with cortical lesions than subcortical lesions (15.1% and 0.8%; p=0.076). Status epilepticus more frequently manifested in early onset seizures compared to late onset seizures (31.3% and 10.1%; p=0.029). Seizure recurrence was observed in 44.3% of PSS patients, mostly due to poor compliance to treatment or due to inadequate drug treatment. Only 7.1% of PSS patients were drug resistant and all of these patients had late onset seizures.
Conclusion: Seizures after ischemic infarction developed more commonly after one week of stroke onset, and in patients with cortical lesions. Seizure recurrence occurred in about half of the patients, and the rate of drug resistance was higher in late onset seizures.
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KEYWORD
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Poststroke Seizures, Ischemic Infarction, Cortical, Seizure recurrence
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