Let's learn about Swan-Ganz Catheterization, which looks inside the heart.

When your doctor suspects that you have trouble breathing or that you have a heart problem, they want to know exactly what's going on inside your heart, right? That's when we're going to talk about a special device that's used to get very accurate information about how your heart is working. It's called the Swan-Ganz Catheter. You may not have heard of it, but it's a very important test.

Simply put, what is this Swan-Ganz pipe?

A Swan-Ganz catheter is a very thin, flexible tube (catheter). It is also called a 'pulmonary artery catheter'. Think of it like a small tube with four smaller tubes inside it. Each of these tubes has a different function.

It is mainly used to measure information about the functioning of your circulatory system, that is, how well blood is moving (hemodynamics).

These are the things that the various parts (ports) of this pipe do:

• Fluids or necessary medications can be administered directly to the heart.
• The blood pressure inside the various chambers of the heart and inside the blood vessels can be accurately measured.
• When this tube is inserted into the main artery that carries blood to the lungs (the pulmonary artery), it is used to inflate a small balloon that helps direct it to the right place.
• A blood sample can also be taken from the artery that carries blood to the lungs.

What do doctors know from this tube?

This test can give your doctor a very clear picture of how healthy your heart is. It's like looking inside your heart.

Is this method still used?

Yes, absolutely. This method is still considered the "gold standard" for obtaining the most accurate information about the pressure inside the arteries of the heart and lungs.

However, the use of this method has decreased recently, especially for critically ill patients in intensive care units. This is due to the development of less risky, noninvasive methods such as ``Echocardiography`` (a scan of the heart) that can obtain information without entering the body.

Who needs to take this test?

Your doctor may recommend this test if he or she suspects or knows that you have one of the following medical conditions:

• Difficulty breathing
• Heart attack
• Heart failure
• Cardiogenic shock
• Pulmonary hypertension
• Abnormal heart rhythms
• Pulmonary embolism
• Cardiac tamponade
• Congenital heart conditions

This method is also used to obtain information about the heart's function before and after major surgery, such as a heart transplant or the implantation of a left ventricular assist device.

Let's learn a little about how this test is done.

This test is usually done in a hospital cardiac catheterization lab. There is no need to worry about this. The doctors will try to keep you as comfortable as possible.

What happens before the test?

1. The doctor will clearly explain to you why and how this test is being performed.

2. If you are taking any medications, you will be asked if you need to stop them before the test.

3. You will be advised to avoid eating or drinking for a few hours before the test.

4. Your written consent (permission) to conduct this test will be obtained.

5. You will be made to lie down on a special bed.

6. You will be given medication through a vein (`IV`) to relax you and numb the pain.

During the test

First, the doctor will thoroughly clean the area where the tube will be inserted (usually the neck, chest, or leg) and numb the area so that you don't feel any pain. Then, the Swan-Ganz tube is carefully inserted into a large vein and threaded through the right ventricle of the heart to the main artery that leads to the lungs (pulmonary artery).

After all the necessary information has been measured, the tube is carefully removed.

After the test

After the tube is removed, a bandage or plaster will be applied to the area to stop any bleeding. If the tube was inserted through your leg, you will be asked to lie down in bed for two to six hours. It is normal to see a small bruise where the tube was inserted. This will go away in about a week or two.

Is there a risk in this?

This is the most important thing. The risk of complications from inserting a Swan-Ganz tube is very low . That is, less than 0.5%. That means that if this is done to 200 people, only one person will have a complication. But, as with any medical procedure, there is a very small risk.

• Infection at the site of insertion of the tube.
• An air bubble entering a blood vessel.
• If a chest vein (subclavian vein) is used, there is a very small chance of damage to the lungs.
• Abnormal heartbeat.
• Damage to a heart wall, valve, or artery (this is very rare).

If you have these symptoms, call your doctor immediately.

If you experience any of the following when you go home after the test, notify your doctor immediately.

• If the wound where the tube was inserted becomes swollen or if blood or other fluid is leaking from it .
• If there is numbness or swelling in the leg where the tube was inserted.

Swan-Ganz catheter, pulmonary artery catheter, heart disease, heart pressure, cardiac output, heart tests, hemodynamics