Lesionectomy with frontal disconnection is useful for frontal epilepsy with cortical dysplasia. Report of 6 consecutive patients

• • Generally frontal lobe epilepsy with FCD is difficult to manage in terms of seizure control. In this communication, the authors will present a new surgical technique, that is, lesionectomy and frontal disconnection for medically intractable frontal lobe epilepsy caused by FCD in consecutive five patients. All resected specimens are neuropathologically investigated by the member of ILAE task force (HM). Postoperative follow-up period ranged from 3 months to 5 years and 6 months, and no definite postoperative complication has been observed so far. Place and extent of frontal disconnection was determined by the perioperative ECoG findings in each case, and postoperative MRI images have shown the extent of frontal disconnection.

• • The postoperative seizure control is satisfactory, that is, Engel's class Ia for four cases, and class II for two pats. In conclusion, this new technique is useful to manage medically intractable frontal lobe epilepsy with FCD.

• • MCD types are ILAE Class Ia: two, Ic: one, IIIc cavernous angioma; one, IIId porencephaly: one, and mMCD; one.