TABLE 2.

Correlation between Hippocampal Volume and Memory Scores before and after Epilepsy Surgery

	Before Surgery		1 Year after Surgerya
Patient Group	Verbal Memory	Visual Memory	Change in Verbal Memory	Change in Visual Memory
All patients, N = 145
Left hv	0.17b	0.05	0.25c	0.02
Right hv	0.00	0.19b	−0.18	0.00
LTLE, n = 76
Left hv	0.15	0.18	0.17	−0.09
Right hv	−0.18	−0.02	0.18	0.18
RTLE, n = 69
Left hv	0.16	0.27b	−0.13	−0.05
Right hv	0.12	0.15	−0.01	0.11

^aNeuropsychometry data 1 year after epilepsy surgery were not available in 30 patients.

^bp < 0.05.

^cp < 0.01.

hv = hippocampal volume; LTLE = left temporal lobe epilepsy; RTLE = right temporal lobe epilepsy.