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. Author manuscript; available in PMC: 2016 Jul 12.
Published in final edited form as: Curr Opin Neurol. 2016 Apr;29(2):175–181. doi: 10.1097/WCO.0000000000000302

FIGURE 2.

FIGURE 2

Mayo Clinic Surgery Outcomes. Kaplan-Meir curves show 5-year seizure freedom for patients with unilateral mesial temporal sclerosis (MTS) is 72%, lesional MRI excluding MTS is 70%, and normal MRI temporal lobe epilepsy and extratemporal lobe epilepsy is ~60% [62,63] and 28% [64▪▪], respectively. Normal MRI patients have worse long-term outcomes, and for all patients the risk of seizure recurrence extends well beyond 1 year. A hypothesis for the recurrence after 1 year is epileptogenesis in tissue at the margin of prior resection.