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Chronic Kidney Disease
What Increases Your Risk
There are four main risk factors for the development of chronic
kidney disease.
Risk factors you cannot control
- Age. The kidney begins to get smaller at about age 35. By age 80
most people have lost about 30% of their kidney mass.
- Race. Both African-Americans and Native Americans are more likely
to develop chronic kidney disease.
- Gender. Men have a higher risk for developing chronic kidney
disease than women.
- Family history. Family history is a factor in the development of
both diabetes
and high
blood pressure, the major causes of chronic kidney disease. Polycystic
kidney disease is one of several inherited diseases that cause kidney
failure.
Cause
The cause of kidney disease is not always known. However, many conditions and
diseases can damage kidneys and lead to chronic
kidney disease.
- Diabetes
causes about 35% of all chronic kidney disease. High blood sugar levels
caused by diabetes damage blood vessels in the kidneys. If the blood sugar
level remains high, this damage gradually reduces the function of the
kidneys.
- High
blood pressure (hypertension) causes another 30% of all kidney disease.
Because blood pressure often rises with chronic kidney disease, high blood
pressure may further damage kidney function even when another medical
condition initially caused the disease.
- Glomerulonephritis
is the third most common cause of chronic kidney disease. Glomerulonephritis
is a disease that causes inflammation of the filtering structures (glomeruli)
inside the kidney, impairing the kidney's ability to remove waste products
from the blood. There may be no symptoms in the early stages. As kidney
damage becomes more serious, symptoms such as blood in the urine and
swelling (edema) may develop.
- Other causes of kidney disease include:
- Medication
use or overuse.
- Infection and obstruction of the kidneys(pyelonephritis).
- Inherited genetic diseases, such as polycystic
kidney disease.
Symptoms
Many people who develop chronic
kidney disease do not have symptoms. This is known as the "silent
phase" of chronic kidney disease. As kidney function declines, early
symptoms of severe chronic
renal insufficiency (CRI) and end-stage
renal disease (ESRD) may develop, including:
- Decreased urinary output (oliguria).
- Fluid retention and swelling (edema).
- Increasing fatigue.
- Nausea and vomiting.
- Loss of appetite (anorexia).
- Changes in mental functioning.
- Insomnia or increased sleepiness (lethargy).
Treatment
Overview
The goal of treatment for chronic
kidney disease is to prevent or slow additional damage to your kidneys.
Since another condition usually causes kidney disease, kidney disease is treated
by:
- Treating and managing other diseases, such as diabetes
or high
blood pressure, that can cause it.
- Preventing diseases or avoiding situations,
such as medication use, that can cause kidney damage.
Initial treatment
One of the most effective ways to treat chronic
kidney disease is to treat and manage the disease that caused your kidney
damage. You and your health professional will develop a plan to aggressively
treat and manage your diabetes
or high
blood pressure to slow additional damage to your kidneys.
You will also need to be evaluated for other
conditions or diseases that may cause kidney damage, including:
- Use of medications,
such as antibiotics or nonsteroidal
anti-inflammatory drugs (NSAIDs).
- Blockage (obstruction) in the urinary tract.
Prevention
Chronic kidney disease may sometimes be prevented
by avoiding situations or controlling the other diseases that can contribute to
kidney disease. The earlier a person alters factors that damage the kidneys, the
better. Controlling the following factors may slow the progression of kidney
damage in a person who has chronic kidney disease. People who have already
developed end-stage
renal disease (ESRD) also need to focus on these factors to prevent
complications of ESRD.
- Maintain blood pressure at less than 130/85 mm
Hg with medication, diet, and exercise.
- Maintain strict blood glucose control in
people with diabetes.
- Maintain healthy levels of fats (lipids), such
as cholesterol and triglycerides. For more information, see the topic High
Cholesterol.
- Stop smoking or using other tobacco products.
If you do not smoke, do not start. For more information, see the topic
Quitting Tobacco Use.
Source: Healthwise
Copyright 1998-2016 American
Indian Health Council. All rights reserved.
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