[Refractory epilepsy: use of the new definition and related risk factors. A study in the Mexican population of a third-level centre].

Introduction: The International League against Epilepsy (ILAE) has recently proposed a consensus to define refractory epilepsy.

Patients And Methods: A retrospective, analytical, descriptive study was conducted involving 206 patients who were attended at the epilepsy clinic of a third-level centre in Mexico. The ILAE's new definition of pharmacoresistance was used to classify the patients.