From: Radiofrequency catheter ablation of ventricular tachycardia in pediatric patients
Idiopathic LV (N = 22) | Idiopathic RV (N = 4) | |
---|---|---|
Procedure numbers | 28 | 5 |
Age at ablation (years), Median (range) | 14 (10–19) years | 14 (6.9–15) years |
Sex (M/F) | 18/4 | 2/2 |
VT inducibility | ||
Not induced, n (%) | 2/28 (7.1%) | 0/5 (0.0%) |
Poor inducibility, n (%) | 12/28 (42.9%) | 2/5 (40.0%) |
Easy inducibility, n (%) | 14/28 (50.0%) | 3/5 (60.0%) |
Mapping, n (%) | ||
Activation mapping | 4/28 (14.3%) | 3/5 (60.0%) |
Pace mapping | 10/28 (35.7%) | 3/5 (60.0%) |
Purkinje potential guided mapping | 16/28 (57.1%) | 0/5 (0.0%) |
3D-CARTO mapping | 6/28 (21.4%) | 1/5 (20.0%) |
VT focus | ||
LV posteroseptal | 24/28 (85.7%) | – |
LV anteroseptal | 1/28 (3.6%) | – |
LV papillary muscle | 1/28 (3.6%) | – |
RVOT septal | – | 3/5 (60.0%) |
RV free wall | – | 2/5 (40.0%) |