What is Resistant Hypertension?
Resistant hypertension means high blood pressure that does not improve, even when you take three or more medicines. Often, people try different drugs, but their blood pressure stays high. In the United States, this problem affects many adults. Because it is hard to control, doctors look for other causes, such as issues with the renal arteries. Managing resistant hypertension via the renal arteries can help some people lower their blood pressure.
How the Renal Arteries Affect Blood Pressure
The renal arteries carry blood to your kidneys. Your kidneys help control blood pressure by balancing salt and water in your body. When the renal arteries become narrow, your kidneys may not get enough blood. As a result, your body may raise blood pressure to help the kidneys work better. Therefore, problems with the renal arteries can lead to high blood pressure that is hard to treat.
Causes of Resistant Hypertension Related to the Renal Arteries
Several issues with the renal arteries can cause resistant hypertension. For example, the most common cause is a condition called renal artery stenosis. This means the arteries are narrowed, often by fatty deposits or plaque. Other causes include:
Because these problems limit blood flow, your kidneys may signal your body to raise blood pressure.
Symptoms and Diagnosis
Often, resistant hypertension does not cause clear symptoms. However, some people may notice headaches, dizziness, or vision changes. Sometimes, swelling in the legs or trouble breathing can occur. Since these signs are not unique, doctors use tests to find the cause. For example, they may order:
With these tests, doctors can check if the renal arteries are narrow or blocked.
Treatment Options
Treating resistant hypertension via the renal arteries depends on the cause. First, doctors may adjust your medicines. However, if the problem is due to narrowed arteries, other treatments may help. These include:
Because each person is different, your doctor will choose the best resistant hypertension treatment for you.
Lifestyle Tips for Managing Resistant Hypertension
Along with medical treatments, healthy habits can help control blood pressure. For example, you can:
Because lifestyle changes support your treatment, they are important for long-term health.
Prevention and When to Seek Help
Although not all cases can be prevented, you can lower your risk by keeping your heart and kidneys healthy. For instance, regular check-ups help find problems early. If you notice symptoms like severe headaches, chest pain, or sudden vision changes, seek medical help right away. Early treatment can prevent serious problems.
In summary, managing resistant hypertension via the renal arteries needs a team approach. Consult a cardiologist for personalized advice on managing resistant hypertension.