Angiogram

What Is An Angiogram?

An angiogram is an examination of your blood vessels using x-ray. The doctor will insert a small tube (catheter) into the blood vessel and then he/she will inject x-ray dye (contrast) that makes the vessels visible when the x-ray pictures are being taken. This will then allow the doctor to determine how well the blood moves through the vessels of your heart.

Why Do I Need An Angiogram?

You need an angiogram because your doctor suspects that there is abnormal blood flow in one or more of your vessels. By injecting contrast through a catheter into your vessels and taking x-ray pictures, the doctor will be able to see if there is a problem and help plan a method of treatment for you.

How Do I Get Ready For My Angiogram?

It is important that you do not eat or drink anything 12 hours before the scheduled time of your examination. You may have a small amount of water with any medications you need to take. Be sure to ask your doctor if you have any questions about eating or drinking before your examination.

Prior to your angiogram you will be visited by our Consultant Cardiologist who will explain the procedure to you. At that time you should ask any questions you may have about the angiogram. If you have any allergies or problems with medications, or think you might be pregnant, you should let the doctor know and if you are allergic to X-ray dye, iodine, or shellfish, it is important to let your doctor know as soon as possible. You will be asked to sign a special form giving the doctor permission to perform the angiogram.

Everyone having an angiogram will have blood tests done prior to the procedure. Your groin will also be shaved on one or both sides where the doctor will insert the catheter. Sometimes the arm may also be prepared in this way. You would be asked to remove your jewelry and dentures if any. You will be asked to put on a hospital gown. It is a good idea to go to the bathroom to empty your bladder before you leave your room. While this examination is being done, your family can wait in one of the hospital waiting areas.

What Happens When I Get To The Cardiovascular Catheterization Laboratory?

In the Cardiovascular Catheterization Laboratory (CVL) you will see plenty of special equipment. The staff will position you on the procedure table and begin to prepare you for the procedure. This includes monitoring of your heart and blood pressure. If you do not already have an IV (intravenous) line, the nurse will insert one so that you can receive fluids and medication during the procedure.

What Is An Angiogram Like?

An angiogram involves two steps :

1. Catheter insertion

The staff will clean your skin area where the doctor will insert the catheter with an antiseptic solution. This is usually at the top of the leg (groin) or the upper arm. You will then be covered with a sterile drape. Next, the doctor will use a small needle to inject some local anesthesia to numb your skin area where the catheter will be inserted. The nurse will give you medication to relieve pain and allow you to relax. You may feel pressure or brief discomfort as the catheter is inserted. The doctor will guide the catheter through the vessel that is to be studied by watching it on a TV-like monitor. You will not feel the catheter moving through your blood vessels.

2. Taking x-ray pictures

Once the catheter is in the correct vessel, contrast dye will be injected through the catheter while x-ray pictures are being taken. You body may feel hot inside when the contrast dye is injected, but the sensation only lasts a few seconds. Several series of contrast injections and x-ray pictures may be needed to complete the examination.

Recovering

When the angiogram is completed, the doctor will remove the catheter and our staff will apply direct pressure for 10-15 minutes over the catheter site to prevent bleeding. A small dressing will be placed over the insertion site. The angiogram usually takes about one hour to complete. When you are back in the ward, you will be instructed not to bend your knee for at least 4-6 hours to prevent bleeding. Your doctor will discuss with you about the findings of your angiogram as well as the treatment options. You can usually be discharged, either the same evening or early the next day.