Incidence and predictors of acute symptomatic seizures after stroke

Neurology. 2011 Nov 15;77(20):1785-93. doi: 10.1212/WNL.0b013e3182364878. Epub 2011 Oct 5.

Abstract

Objective: To assess incidence and predictors of acute symptomatic seizures in a prospective cohort of patients with first stroke.

Methods: Patients with first stroke hospitalized in 31 Italian centers were recruited. Relevant demographic data, disease characteristics, and risk factors were collected. Acute symptomatic seizures (≤7 days) were recorded and correlated to age, gender, family history of epilepsy, and vascular risk factors.

Results: A total of 714 patients (315 women, 399 men; age 27-97 years) were enrolled. A total of 609 (85.3%) had cerebral infarction (32 cerebral infarction with hemorrhagic transformation [CIHT]) and 105 (14.7%) primary intracerebral hemorrhage (PIH). A total of 141 (19.7%) had a large lesion (>3 cm) and 296 (41.5%) cortical involvement. Twelve patients reported family history of seizures. Forty-five patients (6.3%) presented acute symptomatic seizures, 24 with cerebral infarction (4.2%), 4 with CIHT (12.5%), and 17 (16.2%) with PIH. In multivariate analysis, compared to cerebral infarction, PIH carried the highest risk (odds ratio [OR] 7.2; 95% confidence interval [CI] 3.5-14.9) followed by CIHT (OR 2.7; 95% CI 0.8-9.6). Cortical involvement was a risk factor for PIH (OR 6.0; 95% CI 1.8-20.8) and for CI (OR 3.1; 95% CI 1.3-7.8). Hyperlipidemia (OR 0.2; 95% CI 0.03-0.8) was a protective factor for IPH.

Conclusion: The incidence of acute symptomatic seizures is the highest reported in patients with first stroke with prospective follow-up. Hemorrhagic stroke and cortical lesion were independent predictors of acute symptomatic seizures. Hyperlipidemia was a protective factor for hemorrhagic stroke.

Publication types

  • Comparative Study
  • Multicenter Study

MeSH terms

  • Acute Disease / epidemiology
  • Adult
  • Aged
  • Aged, 80 and over
  • Cohort Studies
  • Female
  • Humans
  • Hyperlipidemias / blood
  • Hyperlipidemias / complications
  • Incidence
  • Intracranial Hemorrhages / complications
  • Male
  • Middle Aged
  • Predictive Value of Tests
  • Prospective Studies
  • Risk Factors
  • Seizures / complications
  • Seizures / epidemiology*
  • Seizures / etiology
  • Stroke / complications*
  • Stroke / diagnosis*
  • Stroke / epidemiology
  • Time Factors