Table 2.

Comparison between findings at baseline and 6 months after ablation.

		Baseline	6 M	p
MRI findings
DWI positive patients, n (%)		63 (87.5)	0 (0)	Not applicable
DWI positive lesions, n		421	0
Cortical		361	0
Subcortical, deep		60	0
DIR positive patients, n (%)		62 (86.1)	21 (29.2)
DIR positive lesions, n		362	35
Cortical		307	18
Subcortical, deep		55	17

Neuropsychological test	Normal range	Baseline	6 M	p
MMSE	≧ 24	27.9 ± 2.39	28.5 ± 1.98	0.037*
RCPM	Age dependent	31.4 ± 4.0	31.8 ± 3.1	0.503
RCPM time (s)	Age dependent	391 ± 92.2	392 ± 116	0.69
RBMT immediate recall	Age dependent	10.1 ± 3.4	14.3 ± 4.2	< 0.001*
RBMT delayed recall	Age dependent	7.8 ± 2.98	13.1 ± 4.0	< 0.001*
Necker’s cube		2.3 ± 0.5	2.4 ± 0.6	0.157
MCAS	≤ 2	2.4 ± 1.4	1.8 ± 1.3	< 0.001*
TMT-A	Age dependent	105 ± 31.2	97.8 ± 37.1	0.09
TMT-B	Age dependent	160.2 ± 146	141.1 ± 61.2	0.098
Word fluency (vegetable)		15.3 ± 12.7	13.5 ± 4	0.436
Word fluency (animal)		16.2 ± 4.7	16.9 ± 4.6	0.228
Word fluency (letter)		6.5 ± 1.7	6.7 ± 1.9	0.17

Cardiac function	Normal range	Baseline	3–6 M
EF (%)	50–80	64.5 ± 7.2	67.2 ± 7.7	0.025*
LAVI (ml/m2)	< 34	46.8 ± 16.9	40.9 ± 13.5	0.002*
BNP (pg/ml)	0–8.4	89.1 ± 70.9	62.5 ± 70.1	0.001*

DWI Diffusion-weighted imaging, DIR Double inversion recovery, MCAS Mie constructional apraxia scale, EF Ejection fraction, LAVI Left atrial volume index, BNP Brain natriuretic peptide.