High blood pressure is 'the silent killer'
By Dr. Anthony Policastro
Nanticoke Memorial Hospital
There are many medical illnesses that have few symptoms. Patients do not even know
that they have them. They decide there is no need to go for a checkup because they
feel well. Then by the time that they get symptoms, it is often after they have
significant problems from the illness.
High blood pressure has often been called 'the silent killer.' That is because it
causes few symptoms in the early stages. The only way to find that it exists is to
take a blood pressure. Every adult should have his/her blood pressure checked from
time to time. It does not matter whether they have symptoms or not.
The medical term for high blood pressure is hypertension. Many people think that
the primary reason for it is stress and being constantly upset. That is not true.
While getting upset raises your blood pressure temporarily, it does not usually
keep the blood pressure high. The things that affect blood pressure are ones that
we can control.
Exercise helps keep blood pressure down. Staying away from large amounts of salt on
food keeps blood pressure from going up. Maintaining a reasonable body weight helps
keep blood pressure down.
Genetics plays a big role in determining who will develop high blood pressure. Both
of my parents had high blood pressure. Therefore, it is not a surprise that I have
developed it to some degree. If you have this kind of history, it is even more
important to get checked frequently.
A prolonged period of high blood pressure can affect several parts of the body.
Some of them are obvious and some are not. The main effect of high blood pressure
is on the blood vessels in the body. It depends on which blood vessels are affected
as to which problems develop. Most of the changes are indeed silent until problems
Blood vessels in the eyes can be affected. The result is a change in the blood
vessels of the retina. This can sometimes be seen in the examination of the eyes.
Therefore, a patient may find out that high blood pressure is present on a visit
for an eye exam. The changes in some cases can cause vision problems.
Blood vessels in the brain can be affected. This can involve small blood vessels so
that there are small areas of damage. The damage adds up over time. Therefore, it
may affect a variety of brain functions depending upon the area that is involved.
It can also involve larger blood vessels. The result can be signs of a stroke that
come and go. These are called transient ischemic attacks (TIA).
TIA's suggest that the patient may have a full stroke at a later time. They should
be taken seriously. Blood pressure should be checked. If it is high it should be
In some cases the pressure on the blood vessels in the brain is so high that they
may burst. This causes a brain hemorrhage. The result is a stroke that may kill the
person. It might be the first sign that they had high blood pressure.
Hypertension can also affect the blood vessels in the kidneys. This can cause
kidney function to slowly deteriorate over time if the blood pressure is not
treated. When the heart has to pump against very high pressures, it interferes
with the heart's ability to keep that up for long periods of time. Once the heart
can no longer do that, it fails. The result is congestive heart failure. This is
another reason to treat high blood pressure.
Of course, many people think that if they take blood pressure medicine for awhile,
it will make their blood pressure better forever. Then they can stop the medicine.
That is also not true. Blood pressure medicine works similar to pain relievers.
When the medicine wears off, the pain comes back.
When you stop blood pressure medicine, the pressure usually goes up. That is true
even if the pressure has been normal for years on medicine. It may not happen
right away. It may take a few days or a few weeks, but it will likely happen again.
That means that the medicine is usually a long-term requirement. Every time it is
stopped and the blood pressure goes up, the damage from the blood pressure on the
parts of the body begins again.
There is a good reason for high blood pressure being called the silent killer. Make
sure you get yours checked regularly by someone trained to do it. Do not rely on
inaccurate machines in your local department store. Do not become one of the
victims that will help it continue its name as the silent killer.
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