Besides
a very pleasant disease called LOVE, there
are quite a few unpleasant diseases that
afflict our heart. Broadly, they include
the following types of heart diseases:
Ø
Congenital
Heart Disease
Ø
Rheumatic
Heart Disease
Ø
Hypertensive
Heart Disease
Ø
Coronary
Artery Disease
Ø
Heart
Failure
Congenital
Heart Disease:
It
is unfortunate that some babies are born
with a damaged heart. The defect apparently
arises from some infection or injury to
the baby’s heart during the first three
months after conception.
Rheumatic
Heart Disease: Rheumatic
fever is a very serious disease that mainly
affects children and teenagers. The real
serious part of this disease is the damage
it does to the heart. Although rheumatic
fever affects heart as a whole, the most
serious permanent damage occurs in the valves
–the important doorways leading from one
chamber to another. Out of every 100 children
with some form of heart disease,
only two will have congenital
heart disease, while 98 will have rheumatic
heart disease.
Hypertensive
Heart Disease: Malignant
Hypertension is not the consequence but
the cause of heart disease. For Hypertension,
refer to the section dealing with it.
Coronary
Artery Disease: This
is the most common of all forms of heart
diseases today. More people die from coronary
thrombosis than from all other forms
of illness put together. To understand this
disease, we have to understand the role
of
coronary arteries in the functioning
of our heart.
Every
working muscle in our body needs a supply
of blood to bring it oxygen and nourishment
and carry away its wastes. The Heart–as
the body’s hardest working muscle– needs
a lot of oxygen and nourishment. In simple
terms the two coronary arteries are the
supply
line of our heart. If any of the coronary
artery closes up because
fat and calcium have thickened and
stiffened
it, or it is choked or obstructed
by blood clot (called Thrombus),
the blood supply to the heart is interfered
and
as result, the heart remains undernourished.
The
coronary
insufficiency may cause
Angina
pectoris– a sharp, stabbing,
or crushing pain felt mainly in the chest.
Sometimes the pain is also felt in other
areas–left shoulder, arm or jaw. These pains
are brought on by either by exercise
or by emotional
stress. Sometimes
the
angina
comes on while
climbing stairs, walking against the
wind, passing through some period of excitement,
and after taking a heavy meal.
The angina pains may last from 20-60
seconds. If it lasts much longer than this,
it may be a symptom of coronary thrombosis.
These sharp pains are valuable protests
that the heart muscle makes about its illness,
telling us in no uncertain terms that it
is not getting enough oxygen because of
diminished blood supply. They are also very
useful warnings to take a timely action!
Coronary
thrombosis
is
far more serious than angina
where the pain is only temporary and
is due to an insufficient amount of blood
supply to some portion of the heart muscle.
In coronary
thrombosis, which is also notoriously
known as Heart
Attack is simply the most extreme of oxygen
deprivation. The
blood supply is completely cut off to some
area of the heart wall and eventually whole
region of the heart muscle cells begin to
die. In some cases a large clot (thrombus)
may form over part of the inner surface
of the heart.
Fragments may then break-off and
be carried by the blood stream to the lungs,
the brain, the kidneys, and other organs,
a phenomenon called Thrombo-embolism.
Heart
Failure is
a serious condition that develops when the
heart is no longer able to carry on its
normal work.
It occurs in most patients with serious
heart disease at some time or the other
in the course of their disease.
Heart failure may arise from a number
of different conditions such as: high blood
pressure, coronary thrombosis, kidney disease,
rheumatic fever, diphtheria, and low or
high thyroid activity.
Anything obstructing the normal flow
of blood, such as mitral
or aortic stenosis
will eventually produce severe heart
failure.