Skip to main content

Table 1 Tachycardia origin and results of RFCA for idiopathic ventricular arrhythmias

From: Idiopathic premature ventricular contractions and ventricular tachycardias originating from the vicinity of tricuspid annulus: Results of radiofrequency catheter ablation in thirty-five patients

Arrhythmia origin

No.(%)

VT(SVT)

PVCs

Success (%)

Tricuspid annulus

35(9.23)

5(2)

30

32(91.43)

  Free wall portion

29(7.65)

5(2)

24

28(96.55)

  Septal portion

6(1.58)

0

6

4(66.67)

RVOT

235(62.01)

28(9)

207

224(95.32)

PA

14(3.69)

5(0)

9

14(100.00)

Aortic sinus of Valsalva

24(6.33)

5(0)

19

19(79.17)

LVOT

5(1.32)

1(0)

4

5(100.00)

LV septum

48(12.67)

25(25)

23

43(89.58)

 Anterosuperior septum

12(3.17)

1(1)

11

10(83.33)

 Posteroinferior septum

36(9.50)

24(24)

12

33(91.67)

Mitral annulus

5(1.32)

2(1)

3

5(100.00)

LV epicardium

7(1.85)

4(2)

3

4(57.14)

Others(RVIT 3,LV Free wall 3)

6(1.58)

1(0)

5

5(83.33)

Total

379(100.00)

76(39)

303

351(92.61)

  1. VT, ventricular tachycardia; SVT, sustained ventricular tachycardia; RVOT or LVOT, the right or left ventricular outflow tract, respectively; PA, pulmonary artery; PVCs, premature ventricular complexes; LV, left ventricular; RVIT, right ventricular inflow tract; LV epicardium, Idiopathic ventricular arrhythmias that could not be ablated with RFCA from the left sinus of Valsalva despite earliest ventricular activation being recorded in the left sinus of Valsalva or that could be ablated within coronary venous system were classified as originating from the LV epicardium in the present study.