Sudden cardiac arrest is a life-threatening medical emergency that occurs when the heart unexpectedly stops beating, abruptly cutting off blood flow to the brain and other vital organs. It can strike anyone, at any age, often without warning.

Dr. Michael Seawell, a board-certified interventional cardiologist at DHR Health, is helping expand access to renal denervation, a minimally invasive treatment designed for patients with difficult-to-control high blood pressure.