Is epilepsy surgery usually successful?

Depends: There are many types of epilepsy. Some types are very receptive to surgery. For instance, mesial temporal sclerosis (e.g., scarring of the inner temporal lobe) can cause complex partial seizures and this sub-type of seizures can be cured in ~85% of people and very reduced in another 10% with surgery. In other types of seizures, the surgery can be less helpful.

Often very successfu: Epilepsy is often very treatable with surgery. Successful treatment requires careful identification of the brain location. This can be very challenging for physicians. However, if the location of seizures can be identified, surgery may be able to remove this epilepsy generator.