Cardiac Catheterization
A catheterization is a test used to evaluate the heart, arteries and valves. In this procedure, a catheter (a thin plastic tube) is placed through a patient’s artery through the groin or arm to the heart. This procedure can measure pressure in the heart, oxygen in the blood and pumping ability of the heart muscle. The catheter can also be used to inject dye into the coronary arteries, to see if they are narrowed.
Cardiac Catheterization
You may have had angina, dizziness, or other symptoms of heart trouble. To help diagnose your problem, your doctor may suggest having a cardiac catheterization. This common procedure is sometimes also used to treat a heart problem.
Before the Procedure
Tell your doctor what medicines you take and about any allergies you have.
Don’t eat or drink anything after midnight, the night before the procedure.
You'll likely be admitted to the hospital on the day of the procedure.
Know that the skin where the catheter will be inserted may be shaved. You may be given medication to relax before the procedure.
During the Procedure
You will receive a local anesthetic to prevent pain at the insertion site.
The doctor inserts an introducing sheath into a blood vessel in your groin or arm.
Through the sheath, a long, thin tube called a catheter is placed inside the artery and guided toward your heart.
To perform different tests or check other parts of the heart, the doctor inserts a new catheter or moves the catheter or x-ray machine.
For some tests, a contrast dye is injected through the catheter.
When to Call Your Doctor
Call your doctor right away if you have any of the following:
Angina (chest pain).
Pain, swelling, redness, bleeding, or drainage at the insertion site.
Severe pain, coldness, or a bluish color in the leg or arm that held the catheter.
Blood in your urine, black or tarry stools, or any other kind of bleeding.
Fever over 101.0°F.
After the Procedure
You need to remain lying down for 2–12 hours.
If the insertion site was in your groin, you may need to lie down with your leg still for several hours.
A nurse will check your blood pressure and the insertion site.
You may be asked to drink fluid to help flush the contrast liquid out of your system.
Have someone drive you home from the hospital.
It’s normal to find a small bruise or lump at the insertion site. These common side effects should disappear within a few weeks.