Hypercholesterolemia is the presence of abnormally large amount
of cholesterol in circulating blood. About 80% of total body cholesterol
is made by the liver. The other 20% is from dietary sources. The
body produces cholesterol because it is necessary to digest food.
Cholesterol becomes a problem when there is too much "bad cholesterol"
or low-density lipoproteins (LDL) present in the body. Excess LDL
can trigger the formation of plaque or blockage on the walls of
the arteries. Hypercholesterolemia is diagnosed using special blood
tests.
What is the treatment?
The main goal is to reduce the risk
of atherosclerotic heart disease and resulting myocardial infarction
(heart attack).
Diet modification is usually the first step in treatment
and is tried for several months before any drug therapy is imitated.
Fat intake is reduced to 30% of the total calories consumed; saturated
fat intake is reduced by decreasing the amounts of pork, lamb, and
beef; substituting low-fat dairy products; eliminating coconut and
palm oil; cholesterol intake is reduced by eliminating egg yolks
and organ meats. Exercise is also added to provide weight loss.
Drug therapy may be started if diet, exercise, and weight loss efforts
have not reduced the cholesterol levels after an adequate trial
period.
It is important to take control of your dietary habits to
promote a low cholesterol living. A decrease in your cholesterol
level leads to a lower risk for heart disease.
Guidelines for Low-Cholesterol Living
- Set a goal for your cholesterol level. Identify your risk factors. You and your doctor can figure out an appropriate cholesterol
goal.
- Reduce your risk for heart problems: Watch your weight. Do
aerobic exercise. Change your dietary habits: Make wise food choices.
- Maintain visits with your health care provider: Sometimes changes
in diet and exercise are not enough – you may need to take medications.
See your doctor regularly, so that your levels of cholesterol can
be monitored.
How to read your cholesterol results
Total Cholesterol
Number:
Desirable: Less than 200
Borderline: 200-239
High: 240 or
greater
Blood cholesterol levels of under 200 mg/dL are called "desirable"
and put you at lower risk for heart disease. Any cholesterol level
of 200 mg/dL or more increases your risk; over half the adults in
the United States have levels of 200 mg/dL or greater. Levels between
200 and 239 mg/dL are "borderline-high." A level of 240 mg/dL or
greater is "high" blood cholesterol. A person with this level has
more than twice the risk of heart disease compared to someone whose
cholesterol is 200 mg/dL. About one out of every five American adults
has a high blood cholesterol level of 240 mg/dL or greater.
HDL
Cholesterol Number: The higher your HDL cholesterol the better.
This means that there are more good lipoproteins to remove unwanted
cholesterol from your blood vessels.
Desirable: 35 or greater
Low: Less than 35
LDL Cholesterol Number: If you have a high number of
bad lipoproteins, or LDL’s, in your blood, this may be a sign that
cholesterol is starting to stick to your blood vessels.
Desirable: Less than
130 mg/dL
Borderline: 130 to 159 mg/dL
High: 160 mg/dL and above
Note: These categories apply to adults age 20
and above.
Taking control of your cholesterol can put you back in
charge of a healthier you. This will greatly reduce your risk of
heart attack, heart disease, stroke, and other serious cardiovascular
diseases.
Medical Therapy
Niacin, fibric acid and statin medications
are used to lower cholesterol levels:
Some of the cholesterol lowering
medications are
Pravastatin (Pravacol)
Simvastatin (Zocor)
Atorvastatin
(Lipitor)
Cerivastatin (Baycol)
Fluvastatin (Lescol)
Lovastatin
(Mevacor)
Gemfibrozil (Lopid)
Fenofibrate (Tricor)
What is the prevention?
Genetic counseling may be of benefit to those in families with a
history of familial hypercholesterolemia. Recognition of existing
elevated LDL levels, and a low-cholesterol, low-saturated fat, high-unsaturated
fat diet in high-risk individuals may help to control LDL levels
and prevent early heart attacks.
HDL or good cholesterol
Patients
with normal LDL cholesterol but low HDL are at risk of developing
althrosclerotic heart disease and may benefit from therapy to raise
their HDL with Niacin or a statin.