Bipolar ablation with half normal saline for deep intramural outflow tract premature ventricular contraction

Key Teaching Points•In ventricular arrhythmias, an intramural septal origin should be suspected in case of poor precocity or pace map in either side of the septum, far-field local electrograms, and/or diffuse areas of earlier activation recorded on the mapped surfaces.•Bipolar ablation using half normal saline as irrigant can be effectively and safely performed to treat intramural septal ventricular arrhythmias when conventional ablation has...