REnal Sympathetic dEnervaTion as an a Adjunct to Catheter-based VT Ablation

"* The ablation catheter is placed within a long vascular sheath and advanced into the renal artery. The sheath is advanced over the catheter to engage the renal artery ostium and allow for contrast injection and visualization of the vessel during catheter manipulation.~* After completion of the measurement, no more than six radiofrequency ablation lesions separated both longitudinally and rotationally (a spiral pattern, see figure) will be placed per renal artery. The power will be started at 10 W and titrated to a maximum 20 W, as deemed appropriate by the impedance drop (goal 10% drop). Each lesion should be between 30-120 seconds in duration (no more than 120 seconds per lesion)."

Placebo arm will receive standard VT ablation using current techniques