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Hypertension in patients with chronic renal insufficiency

2017-12-05 10:32

Patients with chronic renal insufficiency can be accompanied by high blood pressure because of the long history of the disease. If the hypertension is not controlled at the right time, it will form a vicious cycle in the human body and affect the prognosis of renal failure itself. Hypertension can cause cardiovascular damage and aggravate renal damage. A small number of patients can develop malignant hypertension, systolic blood pressure and diastolic blood pressure are significantly increased. Hypertension, encephalopathy, convulsion, fundus change and papillae edema, renal failure and malignant hypertension have poor prognosis.

Hypertension in patients with chronic renal insufficiency

In patients with high blood pressure, the kidneys often have progressive damage, and the rate of development to the end of the renal failure is faster. On the other hand, kidney is not only the organ that causes hypertension, but also the target organ of hypertension. Continuous hypertension can cause hypertensive vascular changes, and finally lead to arteriosclerosis, which can accelerate the change of renal function. Besides, severe hypertension can also cause damage to these important organs, such as congestive heart failure, left heart failure and hypertensive encephalopathy. These severe complications often accelerate the death of the patient. High blood pressure is a dangerous signal and must be actively controlled.

In the late stage of chronic renal failure, there were 70% and 80% patients with hypertension, and the degree of hypertension was different. About 80% of the causes of high blood pressure in chronic renal failure are the decline of kidney function, the decrease of urination, and the retention of water and sodium in the body. When limiting water and salt intake, strengthening diuresis and dialysis ultrafiltration treatment, blood pressure can be significantly improved. This type of hypertension is clinically known as "volume dependent hypertension". This type of hypertension has few complications of heart and brain. In addition, about 10% of the hypertension of chronic renal failure belongs to "renin dependent hypertension". This type of hypertension has poor effect on limited water, sodium and dialysis ultrafiltration. Even after correcting water and sodium retention, blood pressure is still rising, sometimes increasing sharply, and easily complicated by heart and brain complications.

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