ULTRA-HFIB-Redo: Ultrasound-based Renal Sympathetic Denervation vs Control in Redo Ablation Patients

Age ≥ 18;

Planned for a redo AF ablation procedure (paroxysmal or persistent); (prior to randomization, a technically successful AF ablation procedure, defined as successful pulmonary vein isolation, if needed, as well as bidirectional block of any attempted anatomic lesion sets such as cavotricuspid isthmus line, roofline, mitral line and superior vena cava isolation, must have been completed). Note: the clinical recurrences must primarily be atrial fibrillation, and not atrial flutter/tachycardia (that is, a prospective patient may have a AFL/AT recurrences, but AF must be the dominant recurrent rhythm.)

Documented history of SBP≥160 or DBP≥100, or;

Receiving ≥1 antihypertensive medication;