What are risk factors for recurrent adult seizures?

Updated: Nov 30, 2017
  • Author: Eissa Ibrahim AlEissa, MD, MBBS; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Risk factors for recurrent seizures include the following:

  • Age younger than 16 years [9] : The risk in this age group is almost double the risk of recurrent seizures in adolescents and adults aged 16-60 years.

  • Remote symptomatic seizure [10, 11, 12] : In the case of seizures after a first stroke, lesion location and stroke subtype are strong predictors of early seizure risk, and early seizures are a predictor of recurrent seizures. [13]

  • Seizures occurring between midnight and 8:59 am [14, 15, 16]

  • Previous provoked seizures [11]

  • Previous febrile seizure [8]

  • Family history of epilepsy [8] : Remote symptomatic seizure may occur in a patient whose sibling is affected with epilepsy.

  • Status epilepticus or multiple seizures within 24 hours as the initial remote symptomatic seizure [11]

  • Partial seizures [10, 12]

  • Todd paralysis in patients with a remote symptomatic seizure [11]

  • History of neurologic deficit from birth, such as cerebral palsy or mental retardation [10]

  • Abnormal examination findings in patients without a remote symptomatic seizure [10, 17]

  • Computed tomography (CT) scan that shows a brain tumor [14]

  • Electroencephalogram (EEG) that shows epileptiform discharges (see below)


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