Q: Which Renal disease causes hypertension? A: Renovascular hypertension. Alternative names: Renal hypertension,or Hypertension renovascular. Renovascular hypertension is high blood pressure due to narrowing of the arteries that carry blood to the kidneys. It is a form of secondary hypertension.When the kidney arteries become narrow, less blood flows to the kidneys. The kidneys mistakenly respond as if your blood pressure is low and give off hormones that tell the body to retain salt and water. This causes your blood pressure to rise:causing hypertension Many different diseases can cause narrowing of the renal arteries. Hardening of the arteries from high cholesterol is one of the most common. Most patients have the typical risk factors for atherosclerosis, including high blood pressure, high cholesterol, and diabetes.Persons with renovascular hypertension usually have severe, difficult-to-control high blood pressure. Elevated blood pressure measurements, repeated over time, confirm hypertension. Your doctor may order blood tests to check your renin and aldosterone levels. Imaging tests may be done to see if the kidney arteries have narrowed. A surgical bypass of the renal arteries (revascularization) may be done to restore blood flow in patients who have severe high blood pressure, episodes of flash pulmonary edema, or rapid worsening of kidney failure. PS: What is renal artery stenosis? Renal artery stenosis is a decrease in the diameter of the renal arteries. What are the causes of renal artery stenosis? Renal artery stenosis is caused by atherosclerosis (hardening and narrowing of blood vessel wall from the inside) similar to the process that occurs in blood vessels in the heart and other parts of the body. Risk factors for atherosclerosis include: high cholesterol levels,high blood pressure, diabetes,age,cigarette Take care as always!
Two main types of diseases cause kidney-induced hypertension. 1. Parenchymal damage. Damage to the cells of the kidney by chronic diseases like diabetes and lupus will slowly cause the filtration function of the kidneys to fail over time. Imagine the drains of your bathtub getting clogged and water backing up. Hypertension will follow. 2. Renovascular disease. Some have mentioned this but the prevalence of this is less than #1. The narrowing of the renal artery from any cause that feeds the kidney causes the kidney to secrete a hormone, which eventually causes constriction or tightening of the blood vessels of the body, leading to hypertension.
The kidneys are uber-complex and do have significant influence on blood pressure. However, paradoxically, hypertension is more often the cause of renal disease than the other way around.
If the kidneys secrete too much quot;Reninquot; then it will lead to renal hypertension.
Renal artery stenosis
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