Distribution of patient seizure onset zone resection percentage. (A) Individual patient SOZ resection percentage coloured by their Engel outcome classification. (B) Patients divided into two groups with Class 1 (n = 18) made up of Engel I and Ib and Class 3+ (n = 10) made up of Engel III and IV. For Class 1, 12 of the 18 patients had at least 80% SOZ resection and for Class 3+, 5 of the 10 patients had at least 80% SOZ resection. Patients with at least 80% SOZ resection are grouped into the DS category while those less than 80% are placed into the PS category.