Atonic seizures result in a sudden loss of muscle strength while the seizure is occurring. Other symptoms may include:
- Going limp and falling to the ground
- Remaining conscious
- Experiencing a brief loss of consciousness
- Drooping eyelids
- Head nods
Because these seizures often result in a fall, the patient may need first aid once the seizure is over. Some people who have these seizures often may choose to wear protective gear, like a helmet.
Causes and Risk Factors
The cause of atonic seizures is often unknown. Some patients may be more likely to have seizures because of changes in their genes.
Atonic seizures most often affect children but can occur in patients of any age.
Rapid breathing (hyperventilation) and flickering lights can trigger seizures.