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Severe epilepsy: Diagnostic and epidemiological aspects
Author(s) -
Keränen Tapani,
Riekkinen Paavo
Publication year - 1988
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1988.tb07997.x
Subject(s) - epilepsy , epidemiology , incidence (geometry) , medicine , pediatrics , complex partial seizures , partial seizures , epilepsy syndromes , differential diagnosis , psychiatry , temporal lobe , pathology , physics , optics
— Epidemiological parameters of epilepsy have been estimated in a large number of studies. Reported annual incidence rates for recurrent seizures vary between 30 and 50/100 000, and prevalence rates in most studies between 500 and 1000/100 000. Varying findings are mostly due to different case ascertainment methods and definitions of epilepsy applied in different surveys. These aspects will be discussed in this paper. A special emphasis is laid on differential diagnosis of seizure disorders, and on the prevalence and causes of complex partial epilepsy. This epileptic disorder is one of the most common forms of epilepsy, and also difficult to treat in many cases. Many recent reports show that prognosis of seizures in patients with epilepsy is better than suggested in earlier studies. However, 25–30% of epileptics seem to have frequent (<1/month) seizures. Our own study, in accordance with earlier findings suggests that prevalence of patients with severe complex partial epilepsy is about 80–90/100 000. Available literature provides several predictive factors for the prognosis of seizures and assessment of prognosis is possible quite early after the onset of seizures. Treatment choices for patients with intractable epilepsy will be discussed.