Therapy Efficacy of Idiopathic Ventricular Extrasystoles: A Real Life Study

Table 4

Site of origin of VES based on the catheter ablation procedure.

Site of origin	Patients n = 63	Primary success raten = 63	Follow-up success raten = 35
RVOT	42 (66.7%)	34 (81.0%)	21 (75.0%)
LV	11 (17.5%)	10 (90.9%)	4 (80.0%)
LVOT	2	1	1
AMC	3	3 (100%)	—
Anterolateral papillary muscle	1	1	0
Septum	1	1	1
Sinus coronarius	1	0	—
Ablation line to the left posterior fascicle	1	1	1
Septum, near mitral annulus	1	1	1
Septum, posteriorly near mitral annulus	1	1	—
Coronary cusps	6 (9.5%)	5 (83.3%)	3 (75%)
LCC	4	3	2
RCC	2	2	1
Site of origin remained unclear	4 (6.3%)	0%	0%

RVOT, right ventricular outflow tract; LV, left ventricle; LVOT, left ventricular outflow tract; AMC, aortomitral continuity; LCC, left coronary cusp; RCC, right coronary cusp. When comparing the primary success rate and the follow-up success rate between different sites of origin groups, the values were 0.58 and 1.0, respectively. The primary success rate was obtained from all 63 patients. The follow-up success rate was obtained from 35 patients.