Which of the following is True regarding absence seizures?
b. Hyperventilation often precipitates an attack(Ref: Nelson's 20/e p 2831-2856, Ghai 8/e p 557-561)Typical absence seizuresUsually start at 5-8 yr of age; They do not have an aura, usually last for only a few seconds and are accompanied by eyelid flutter or upward rolling of eyes and simple automatisms like lip-smacking or picking at clothingAbsence seizures do not have a postictal periodQ and there is immediate resumption of what patient was doingHyperventilation for 3-5min can precipitate seizures & 3Hz spike-and-slow-wave dischargesEarly onset absence seizures (before the age of 4 yr) should trigger evaluation for glucose transporter defect.
Attack lasts for 60 to 90 seconds
Hyperventilation often precipitates an attack
Onset of disease in the first year of life
Attack followed by postictal confusion
Central Nervous System