Abstracts

Rationale: WADA test is at the same time as the language dominant hemisphere identified, used to evaluate memory of each one side. In addition, in the temporal lobe epilepsy patients it is known that the memory impairment may occur, especially verbal memory in the failure of the language dominant side there is impaired. It was investigated the relationship between the focal side of temporal lobe epilepsy and memory evaluation by WADA test. Methods: In the diagnosis of temporal lobe epilepsy from2007 to 2016, to enforce the WADA test prior to surgery, targeting the 35 patients who underwent resection surgery, including the one side of the hippocampus. After identifying the language dominant hemisphere by WADA test, it was calculated divided by the language dominant side of the memory test results (%) of the non-language dominant side of the memory test results (%) as a Memory Index (MI). Results: The value of MI was 0.24-11.69 (median 1.06). We divided into three groups depending on the value of MI; Group A (MI>1.1): 18 patients (there is a growing memory superiority of the language dominant side), Group B (0.9?MI?1.1): 9 patients (left and right of the memory is almost equal), Group C (MI < 0.9): 8 patients (there is a growing memory superiority of the non-language dominant side). The resection side with people memory superiority low is matched, there were in the Group A: 16/18 patients (88.9%), Group B: 4/9 patients (44.4%), and C group 8/8 patients (100%). Seizure outcome of the elapsed 23 patients more than two years from the surgery, based on the Engel classification, was Class I in 17 patients (73.9%), was Class II in 3 patients (13.0%), was Class III 3 patients (13.0%). 23 patients is divided into Group A: 13 patients, Group B: 6 patients, and C group: 4 patients, the resection side with people memory superiority low is matched, there were in the Group A: 11/13 patients (84.6%), Group B: 3/6 patients (50.0%), and Group C: 4/4 patients (100%). 18 patients, resection side with people memory superiority low was matched, of seizure outcome was Class I in 14 patients (77.8%), Class II in 3 patients (16.7%), Class III in 1 patients (5.5%), 5 patients, resection side with people memory superiority low was not matched, of seizure outcome was Class I in 3 patients (60%), Class III in 2 patients (40%). Conclusions: In the memory evaluation of WADA test, the difference in the left and right memory capacity has occurred (MI>