Absence Seizure



Absentence attacks involve a short period of consciousness, a sudden course. They are more common to children than adults. A person with a missed seizure may seem to be looking at the universe for a few seconds by him or her. This type of seizure usually does not lead to physical injury.

Absent seizures can usually be controlled with seizure suppressants. Some children with them also develop other seizures. In teens, many children suffer a mock attack.


Signs of simple absence attacks are empty eyes that may be mistaken for loss of attention for 10 to 15 seconds without subsequent confusion, headache or drowsiness. For signs and symptoms of absence seizures,

  • Stop suddenly without falling
  • Lip swapping
  • eyelid
  • Chewing movement
  • Finger rub
  • Small movement of both hands

Absentence attacks generally last for 10 to 15 seconds and complete recovery instantly. After that, I do not remember the incident. Some people have dozens of episodes every day, and they interfere with school activities and daily activities.

Children may cause abuse attacks for a while before adults become aware of seizures. Declining children’s learning ability may be the first sign of this disorder. The teacher may comment on that the child can not pay attention.

When going to see a doctor

Please contact your doctor:

  • When you first notice an attack
  • If this is a new type of seizure
  • If the seizure continues to occur despite administration of anti-stroke drugs

Seek medical attention immediately:

  • If you observe long-term automatic behavior (activities such as meals and movement without recognition) and long-term disarray, epilepsy with a possibility of a state called absence state
  • If the attack lasts more than 5 minutes


Frequently, the underlying cause of absence attacks can not be found. Many children seem to have a genetic predisposition. Rapid breathing (hyperventilation) can cause absence attacks.

In general, seizures are caused by abnormal electrical impulses from nerve cells (neurons) in the brain. Nerve cells in the brain usually send electrical and chemical signals via synapses connecting them.

In a person who has suffered seizure, the normal electrical activity of the brain changes. During an absence seizure, these electrical signals repeat over and over again in a 3 second pattern.

The stroke may change the level of chemical messenger that helps neurons communicate with each other (neurotransmitter).

Away attacks are more common in children. Many children gradually grow from months to years. Some children with absence seizures experience full seizures (tonic-clonic seizures).

Risk Factors

Certain factors are common to children with absent seizures.


Absent attacks are more common in children between 4 and 10 years of age.

Sex In general,

most seizures are more common in boys, but absent seizures are more common in girls.

History of febrile seizures

Infants and children who have suffered seizures by fever are at higher risk of absence attacks.

Families who had seizures.

Almost half of children with absent seizures are close relatives who have seizures.


Most children pass past absence seizures,

  • Cause a seizure throughout life
  • Ultimately, generalized tonic-clonic seizures

As other complications,

  • Difficulty learning
  • Behavior problems
  • Social isolation
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