Cardiology Research and Practice

Research Article

The Effect of Accessory Pathway Location on Cardiac Function in Adult Patients with Wolff–Parkinson–White Syndrome

Table 4

Comparison of measurements in patients with septal and right free wall accessory pathways before and after ablation.


Parameter	Septal		value	Right free wall		value
Parameter	Before RFA	After RFA	value	Before RFA	After RFA	value

QRS (ms)	125 ± 19	89 ± 10	<0.001	133 ± 25	86 ± 10	<0.001
PR (ms)	132 ± 23	152 ± 18	<0.001	116 ± 24	146 ± 16	0.001
LVEF (%)	58 ± 4	63 ± 3	<0.001	58 ± 5	62 ± 2	0.003
IVMD (ms)	29 ± 8	29 ± 5	0.924	31 ± 5	30 ± 6	0.881
SPWMD (ms)	90 ± 20	49 ± 11	<0.001	60 ± 16	47 ± 12	<0.001
NT-proBNP (ng/mL)	159 ± 241	78 ± 89	0.042	132 ± 129	52 ± 35	0.015

Data are given as mean ± SD. . QRS: QRS duration during sinus rhythm; PR: PR interval during sinus rhythm; LVEF: left ventricular ejection fraction; IVMD: interventricular mechanical delay; SPWMD: septal-to-posterior wall motion delay; NT-proBNP: N-terminal pro-B-type natriuretic peptide.