Which ventricle should be mapped first in catheter ablation of ventricular arrhythmias originating from the ventricular outflow tract?

The article presents a commentary on a study which developed a unique electrocardiography (ECG) algorithm for the prediction of a ventricular arrhythmia (VA) origin that is likely to be ablated within the left coronary cusp (LCC) or right coronary cusp (RCC) by combining several ECG algorithms proposed previously. Topics covered include use of ECG characteristics in predicting the site of idiopathic VA, and successful ablation of VA in the left pulmonary sinus cusp (PSC).