Because the kidneys have to filter all the blood in the body, they are very susceptible to damage from untreated hypertension. The effects of hypertension on blood vessels, as discussed above, may occur in the renal arteries (arteries that supply blood to the kidneys). As discussed in the second chapter, renal artery constriction may cause a blood pressure, which can be treated by surgery.
Kidney tissue itself is also affected by severe hypertension. The ability to filter out the waste product will gradually weaken until the kidney is completely dead. Waste will be gathered in the blood, forming a toxic cord, which lead to uremia. Early symptoms of renal failure include fatigue, mental focus, and muscle cramps. If there is no early treatment of renal failure, there will be nausea, vomiting, gastrointestinal bleeding, bad breath and loss of appetite symptoms. Renal failure patients must be treated by dialysis, and the waste in the blood is filtered through dialysis. Some people may worry that drugs that control blood pressure may damage the kidneys, which actually protect the kidney.
Renal sclerosis occurs when small arteries and arteries become stiff and occluded in the kidney. Benign renal sclerosis is a process of gradual development of these vessels in the kidney and a long-term deterioration of the wall of the inner wall of the small artery wall will be gradually thickened. Then the fat will pile up on the wall of the degenerated tissue, and the sterile line is blocked. The rapid development of malignant kidney disease can cause bleeding (blood flow into the tissue), rupture and tissue swelling. Symptoms of kidney sclerosis include vision loss, hematuria, weight loss, and uremia. Treatment methods include the use of antihypertensive drugs, elimination of infection and obstruction, and other measures to mitigate chronic renal failure, such as dialysis. Progressive renal failure and all stages of hypertension are related, but more common in patients with grade 3, grade 2 and grade 4 hypertension.