When three or more medications are unable to keep blood pressure under control, the condition is known as resistant hypertension. It’s usually caused by nonadherence to medication regimens, too much salt in the diet, and side effects from other conditions, such as a lack of sleep or kidney problems. Treatment focuses on discovering and addressing the causes. Recent research suggests that renal denervation is both safe and effective at helping to manage resistant hypertension. It’s a catheter procedure that uses radiofrequency to destroy overactive nerves in the renal (kidney) arteries. Exercise and improved diet can also help lower hypertension.
To continue reading this article, you must login
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.