Example of a successful ablation of a premature ventricular contraction (PVC) originating from the midseptal portion of the tricuspid valvular right ventricular region.

<p>(A) The surface ECG characteristic. (B) The local ventricular activation time recorded at the successful ablation site that preceded the onset of the QRS complex was 31 ms. (C) Pace map at the ablation site. (D) The fluoroscopic position of the ablation catheter and the His-bundle catheter sites. (E) Red dot indicates site of RF application under the guide of Ensite NavX. ABL, ablation catheter; RAO, right anterior oblique projection; LAO, left anterior oblique projection.