title: [Prognostic value of epileptic seizures in patients with cerebral gliomas].
abstract: BACKGROUND
  Epileptic seizures as the only or one of the symptoms of a brain tumor are useful for prognostication and represent a factor influencing survival rate and quality of life in patients with high-grade and low-grade gliomas.
  
  
  METHODS
  A retrospective analysis of 189 patients was carried out between 1981 and 1997. The shortest follow-up period was 2 years, the longest 8 years. Epileptic seizures were present in 43% of the patients before operation. Correlations between localization of glioma and type of seizure were studied. The Statistica software was used to analyze histopathology findings according to seizure frequency and its influence on survival rate.
  
  
  RESULTS
  Survival rates in patients with low-grade glioma (WHO II) and high-grade glioma (WHO III) suffering from seizures before operation were higher (p = 0.0306) than in patients without seizures. This relationship did not apply to WHO IV gliomas. There was no association between seizure frequency and histological type of tumor.
  
  
  CONCLUSIONS
  Simple partial seizures are usually associated with low-grade supratentorial gliomas, whereas generalized seizures were present in high-grade gliomas.
authors.affiliation: Klinika Neurochirurgii Instytutu Neurologii Collegium Medicum Uniwersytetu Jagicllońiskiego w Krakowic ul. Botaniczna 3, 31-503 Kraków.
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Krzyszkowski
authors.forename: Ryszard
authors.initials: R
authors.lastname: Czepko
authors.forename: Marek
authors.initials: M
authors.lastname: Betlej
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001932:Brain Neoplasms / Q000453:epidemiology* / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D015897:Comorbidity; D004827:Epilepsy / Q000453:epidemiology / Q000401:mortality*; D005260:Female; D005500:Follow-Up Studies; D005910:Glioma / Q000453:epidemiology* / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011237:Predictive Value of Tests; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate; D014057:Tomography, X-Ray Computed