Table 5.

Results of neurocognitive tests: intraindividual changes compared to preablation assessment

	Time of assessment	All patients, median (IQR)	P value for change since preablation (signed‐rank test)	Median (IQR)
				With silent lesions	Without silent lesions
d2 Target items	Postablation	3 (−18‐16), n = 91	NS	−12 (−13‐18), n = 7	3 (−18.5‐16), n = 84
	3‐mo FU	15 (−7‐32), n = 79	<0.001	25 (5‐33), n = 5	14.5 (−7‐31), n = 74
d2 Concentration performance	Postablation	12 (1‐25), n = 91	<0.001	4 (−11‐16), n = 7	13 (1.5‐25.5), n = 84
	3‐mo FU	23 (9‐49), n = 79	<0.001	38 (10‐40), n = 5	22.5 (9‐49), n = 74
d2 Error rate, %	Postablation	−3 (−13‐1), n = 91	<0.001	−2 (−14‐4), n = 7	−3 (−13‐0), n = 84
	3‐mo FU	−5 (−17‐1), n = 79	<0.001	−7 (−15–5), n = 7	−4 (−17‐1), n = 74
MoCA memory	Postablation	0 (0‐1), n = 96	<0.001	0 (0‐0), n = 9	0 (0‐1), n = 87
	3‐mo FU	0 (0‐1), n = 82	0.008	0 (−1‐0), n = 6	0 (0‐1), n = 76
VVM2	Postablation	1 (−3‐5), n = 95	NS	2 (−1‐4.5), n = 8	1 (−4‐5), n = 87
	3‐mo FU	0 (−2.5‐5.5), n = 80	NS	5 (4‐6), n = 5	0 (−3‐5), n = 75
STAI‐S	Postablation	−2 (−7.5‐1), n = 96	<0.001	−1 (−4‐1), n = 9	−2 (−8‐1), n = 87
	3‐mo FU	−2 (−7‐3), n = 81	0.022	−0.5 (−15‐6), n = 6	−2 (−7‐3), n = 75

Abbreviations: FU, follow‐up; IQR, interquartile range; MoCA, Montreal Cognitive Assessment subtest; NS, nonsignificant; STAI‐S, State‐Trait Anxiety Inventory questionnaire; VVM2, Visual and Verbal Memory test.

Value for MoCA fluency were 0 and 1 only, values for MoCA orientation were 5 and 6 only, both precluding descriptive statistics.