Anomalous Coronary Artery Intervention
What is anomalous coronary artery intervention?
Anomalous coronary artery intervention is a procedure to correct a problem with the
coronary artery. An anomalous coronary artery may have an irregularity with its starting
point, course, shape, or branching. The specific problem may cause the artery to be
blocked. During the procedure, the blocked part of the artery is opened up.
The heart pumps blood to the body and lungs. But it also needs its own supply of blood
to keep it alive. The coronary arteries supply blood to the heart muscle. These arteries
arise from the aortic sinuses. The aortic sinuses are in the aorta. The aorta is the
large blood vessel that sends blood from the heart out to the whole body.
There are 2 coronary arteries that normally arise from these sinuses. The right coronary
artery arises from the right aortic sinus. The left coronary artery arises from the
left aortic sinus. These 2 arteries branch off into other coronary arteries. In some
people, the branching of the coronary arteries is abnormal. This occurs before birth.
No one knows what causes it. It may cause no problems. But in some cases, significant
complications or even sudden death may occur.
Fatty deposits may form inside the arteries. This is known as atherosclerosis. The
deposits can block the flow of blood through the arteries. The arteries may also become
compressed due to the abnormal paths they take.
To treat this condition, your doctor can use angioplasty and a stent to fix the artery.
The procedure is done with a thin, flexible tube (catheter) that has a tiny balloon
at its tip. The catheter is put into a blood vessel in the groin or wrist. It’s then
gently advanced to the coronary artery. The balloon is inflated. This pushes aside
the fatty deposits and makes space in the artery. Or, it opens up a compressed area.
A small mesh tube called a stent is then put in the area. It’s left in place to keep
the area open. The catheter is then removed.
Why might I need an anomalous coronary artery intervention?
Treatment is often advised for people with this condition who have symptoms. An anomalous
coronary artery may not cause any symptoms. Or it may cause symptoms such as chest
pain or fainting with exercise, or abnormal heart rhythms. This may mean that the
heart muscle is not getting enough blood.
Getting treatment for a blocked anomalous coronary artery can prevent serious problems.
These include lack of blood to the heart muscle (ischemia), irregular heart rhythms,
and sudden cardiac death.
Some people with an anomalous coronary artery can be treated with medicines and lifestyle
changes. In other cases, a person may need the intervention procedure. Or your doctor
may advise a different type of surgery. Talk with your doctor about the risks and
benefits of each procedure for you.
What are the risks of anomalous coronary artery intervention?
All procedures have risks. The risks of this procedure include:
- Excess bleeding
- Blood vessel damage from the catheters
- Blood clot that can lead to stroke or blockage of the stent
- Abnormal heart rhythm, which can cause death in rare cases
- Allergic reaction to the dye
- Heart attack
- Need for coronary artery bypass grafting, if the artery doesn’t open with the procedure
Your risks may vary based on your overall health, the severity of your condition,
and other factors. Ask your doctor about which risks apply most to you.
How do I prepare for an anomalous coronary artery intervention?
Talk with your healthcare provider how to prepare for your procedure. Tell your healthcare
provider about all the medicines you take. This includes over-the-counter medicines
such as aspirin. You may need to stop taking some medicines ahead of time, such as
blood thinners. If you smoke, you’ll need to stop before your procedure. Talk with
your healthcare provider if you need help to stop smoking.
You may need some tests before the procedure, such as:
- Chest X-ray
- Electrocardiogram, to check the heart rhythm
- Blood tests, to assess your general health
- Echocardiogram, to view heart and the blood flow through the heart
- Multidetector computed tomography scan (MDCT) or cardiac magnetic resonance (MR),
if more information about the blood vessels is needed
Do not eat or drink after midnight the night before your procedure. Tell your healthcare
provider about any recent changes in your health, such as a fever.
What happens during an anomalous coronary artery intervention?
Talk with your healthcare provider about what to expect during your procedure. The
procedure often takes place in a cardiac catheterization lab. A cardiologist and a
team of specialized nurses and technicians work together. A typical procedure may
go like this:
- An IV will be put in your arm or hand before the procedure starts. You’ll be given
sedation through the IV line. This will make you relaxed and sleepy during procedure.
- Hair in the area of your procedure may be removed. The area may be numbed with a local
- The healthcare provider will make a small incision in a blood vessel in your groin
or wrist. He or she will then insert a long, thin wire into this cut. The wire acts
as a guide for during the procedure.
- The healthcare provider will then insert a thin, flexible tube (catheter) over the
wire. It has a tiny deflated balloon on the end. The catheter will be threaded through
the blood vessel all the way into the coronary artery. Continuous X-ray images may
be used to show exactly where the catheter is.
- The balloon will be inflated inside the narrow part of the artery. This will stretch
the area open.
- A mesh tube called a stent may be left in place in the area. This will help keep the
- The balloon will be deflated, and the catheter will be removed.
- The incision site in the groin or wrist will be closed and bandaged.
What happens after an anomalous coronary artery intervention?
After the procedure, you will spend several hours in a recovery room. You may be sleepy
and confused when you wake up. Your healthcare team will watch your vital signs, such
as your heart rate and breathing. You’ll be given pain medicine if you need it.
You may need to lie flat without bending your legs for several hours after the procedure.
This is to help prevent bleeding from the incision site. You will need to stay in
the hospital overnight. Your healthcare provider will tell you more about what to
After you go home, you may need to take medicines to help prevent blood clots. You
may need to take them for a short time, or take them for a longer time. You may also
need to take antibiotics. Your healthcare provider will let you know about any other
changes in your medicines. You can take pain medicine at home if you need it. Ask
your healthcare provider which to take.
You can resume your normal activities when you get home. But do not do strenuous activities
or heavy lifting for several days. Your doctor may give you more instructions.
Make sure to keep all of your follow-up appointments. This will help your healthcare
provider keep track of your progress. Your doctor may order follow-up tests. These
may include an electrocardiogram or an echocardiogram.
Call your healthcare provider right away if you have any of the following:
- Swelling or pain that gets worse
- Fluid or blood leaking from the incision site
- Chest pain
Follow all of your healthcare provider’s instructions. This includes any advice about
medicines, exercise, and wound care.
Before you agree to the test or the procedure make sure you know:
- The name of the test or procedure
- The reason you are having the test or procedure
- What results to expect and what they mean
- The risks and benefits of the test or procedure
- What the possible side effects or complications are
- When and where you are to have the test or procedure
- Who will do the test or procedure and what that person’s qualifications are
- What would happen if you did not have the test or procedure
- Any alternative tests or procedures to think about
- When and how will you get the results
- Who to call after the test or procedure if you have questions or problems
- How much will you have to pay for the test or procedure