Exclusion criterion
- Patients with significant structural heart anomalies
- Those
with intramural VA[13] that was eliminated from both the RVOT and
LVOT via bipolar ablation
- Those with VA with two or more similar QRS morphologies but one origin
caused by preferential conduction[14]
- Those with a secondary VAs such as electrolyte disturbance or thyroid
dysfunction
- Those
without OTVA
- Those with a failed RFCA