The Development of Renal Denervation Therapy Interventional methods of short-circuiting the renal artery sympathetic nervous system helps treat drug-resistant hypertension

摘要

One of the exciting new frontiers for interventional cardiology is the use of renal denervation therapy to treat pharmacologically uncontrolled hypertension.The American Heart Association estimates more than 75 million people in the United States have high blood pressure, and the economic costs to treat these patients exceed $50 billion annually. Despite public awareness and the availability of numerous pharmaceutical therapies, only about half of all treated hypertension patients achieve adequate blood-pressure control. Compounding the problem is that between 10 and 20 percent of this population have drug-resistant or refractory hypertension. It is estimated there are more than 10 million drug-resistant hypertension patients in the United States, so renal denervation (RDN) may offer a massive new market for cath labs to tap into. A normal blood pressure is typically at or below 120 systolic and 80 diastolic (120/80 mmHg). Hypertension is blood pressure greater than 140/90 mmHg. The risk of cardiovascular