Health Resource Center
Cardiac Catheterization
Aug 21st 2008
Cardiac
catheterization is a common test used to diagnose heart disease.
The heart is a muscular pump (comprised of four chambers
and one way valves) that pumps about 5 liters of blood to the body per minute.
Like any pump, it requires fuel. The fuel (oxygen and nutrients) is supplied by
3 coronary arteries that run on the surface of the heart. Blockage in the
coronary arteries can lead to heart pain (angina)
or a heart. The cardiac catheterization (also known as an angiogram) is
performed to see if there is blockage in the coronary arteries or if there is a
faulty valve. In addition the test reveals how forceful the pump is
contracting. In other words, information is obtained to determine if the heart
is healthy or if there has been prior damage to the heart muscle.
The test
is performed by passing a small plastic tube (catheter) into an artery that runs
from the heart to the leg. The groin is cleaned and then covered with a drape.
A small amount of local anesthesia is used prior to inserting the tube into the
artery. It is then passed up to the heart under a fluoroscope. Next, a series
of pictures are taken of the coronary arteries and of the main pump. You will
note a warm sensation over your entire body with the injection of dye in the
main pump. The entire test takes about 20 to 30 minutes. The only discomfort
you will feel is the injection of the local anesthetic in the groin, otherwise
the test is painless. After the test is completed, you will be asked to remain
in bed for a few hours in order to allow the puncture site in the groin to
heal. Your doctor will have the results of the test shortly after the test is
completed. A decision will then be made whether further treatments or tests are
needed.
Click here to learn more about cardiac catheterization.
Click here to learn more about coronary angiogram.