Renal hypertension is caused by narrowed renal arteries, leading to high blood pressure. Diagnosis is based on age and symptoms, and can be confirmed through blood tests or imaging. Treatment involves addressing the narrowed arteries through medication or surgery.
Renal hypertension is a disease characterized by the narrowing of the renal arteries that carry blood to the kidneys, causing abnormal changes in blood flow to them. The result is dangerously high blood pressure. Renal hypertension may also be known as renovascular hypertension.
The renal arteries are blood vessels that carry the body’s blood to the kidneys so that it can be filtered and returned to the body’s circulation. The whole process depends on the force of blood pressure to push the blood to where it needs to be. Therefore, when the kidneys sense that the blood in the renal arteries is not moving normally, they will release the hormone renin to raise blood pressure. The problem lies in the fact that the body’s blood pressure is not low. Narrowed renal arteries are causing decreased blood flow, so instead increased renin causes dangerously high blood pressure.
Renal hypertension is usually diagnosed after a patient experiences high blood pressure. A sign that the increase in blood pressure is related to the kidneys is that the patient is under the age of thirty. If the patient is over fifty-five and experiencing a sudden onset of high blood pressure, this is another sign of renal hypertension. If the problem doesn’t respond to treatment or suddenly stops responding to previously effective treatments, your doctor may start testing for renovascular hypertension.
Doctors will diagnose increased resin levels through blood tests. Another way to definitively diagnose this disease is to have an MRI or CT scan to see narrowing of the renal arteries. If less invasive procedures aren’t conclusive, a more invasive test, injecting the dye through a catheter in the groin, will allow doctors to see the dye traveling through narrowed renal arteries.
Treatment of other types of hypertension and treatment of renal hypertension differ greatly. Renal hypertension does not respond to traditional drug treatments. Instead, treatment must address the source of the problem: narrow renal arteries.
Doctors can widen their patient’s renal arteries in several ways. First, the patient will be given medicine to loosen any fatty deposits that may have lodged in the arteries, making less room for blood to flow. If fat deposits aren’t a problem, you may need a surgical treatment called a stent. Through the stent, a surgeon can physically widen blood vessels by actually stretching the blood vessel walls.
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