The Effect of Accessory Pathway Location on Cardiac Function in Adult Patients with Wolff–Parkinson–White Syndrome
Table 2
Electrocardiographic and echocardiographic data before and after ablation.
Parameter
Before RFCA
value
After RFCA
value
Septal
Right free wall
Left free wall
Concealed
Septal
Right free wall
Left free wall
Concealed
QRS (ms)
125 ± 19#
133 ± 25#
120 ± 14#
87 ± 11
<0.001
89 ± 10
86 ± 10
88 ± 11
87 ± 11
0.847
PR (ms)
132 ± 23#
116 ± 24#
129 ± 18#
145 ± 17
0.001
152 ± 18
146 ± 16
145 ± 12
144 ± 15
0.409
LVEDd (mm)
47 ± 5
48 ± 6
47 ± 4
45 ± 4
0.218
45 ± 3
45 ± 3
46 ± 3
44 ± 4
0.445
LVEF (%)
58 ± 4#
58 ± 5#
62 ± 1
62 ± 1
<0.001
63 ± 3
62 ± 2
62 ± 1
62 ± 2
0.604
IVMD (ms)
29 ± 8#
31 ± 5#
28 ± 5
26 ± 5
0.092
29 ± 5
30 ± 6
31 ± 7
26 ± 4
0.06
SPWMD (ms)
90 ± 20#
60 ± 16#
50 ± 15
43 ± 6
<0.001
49 ± 11
47 ± 12
46 ± 12
42 ± 5
0.242
Data are given as mean ± SD. refers to comparison between the four groups. . vs. concealed. QRS: QRS duration during sinus rhythm; PR: PR interval during sinus rhythm; LVEDd: left ventricle end-diastolic dimension; LVEF: left ventricular ejection fraction; IVMD: interventricular mechanical delay; SPWMD: septal-to-posterior wall motion delay.
