Has your doctor ordered a special test to check for any problems with your heart? It might be a `(Transesophageal Echocardiogram)`, or as we call it `(TEE)` test. Although it may sound a bit strange, it is a method that allows you to see the condition of your heart very clearly, right from the inside. So you may be a little scared or curious about this. So let's talk about this `(TEE)` test simply, in a way that you can understand.
What is this (TEE) test? How is it done?
Simply put, a Transesophageal Echocardiogram is a test that uses sound waves to take pictures of your heart. This is also an echo test. But it's a little different from the more common Transthoracic Echocardiogram (TTE) that's done on the chest. This is because the pictures are taken from inside the body.
Doctor, a thin, long tube-like instrument, we call it an ``Endoscope,'' is carefully inserted down your throat into your food pipe (esophagus). At the end of this tube is a small ``Transducer.'' This ``Transducer'' emits sound waves. These sound waves hit different parts of the heart and reflect back, like an echo. The ``Transducer'' picks up those returning waves and sends them to a computer. The computer converts that data into images. These images show the shape and function of the heart in great detail.
Sometimes doctors use special techniques called Doppler ultrasound and Color Doppler along with this TEE test. These can accurately measure the speed and direction of blood flow through the heart.
What do doctors find with this (TEE) test?
This `(TEE)` test can provide a very clear picture of the structure of the heart, that is, how its parts are arranged, and how the heart is working. This can help diagnose various diseases and manage them during treatment. Here are a few examples:
- Aortic aneurysm: This is when the wall of the largest blood vessel in our body (the aorta) weakens and bulges like a balloon.
- Blood clots in the heart: People with atrial fibrillation, in particular, are more likely to develop blood clots in the upper chambers of the heart (atria).
- Cardiac tumors: These can be cancerous or non-cancerous.
- Congenital heart disease: This refers to various heart diseases that are present at birth.
- Heart valve disease: For example, mitral valve disease. This valve can become narrow (stenosis) or leak blood backward (regurgitation). Also, people with prosthetic valves can be checked for problems with their valves, such as infections or blood clots.
- Infections of the heart tissue or valves: For example, conditions like `(Infective endocarditis)`.
- Pericardial disease: This refers to diseases that occur in the thin sac (pericardium) that surrounds the heart.
Why is this (TEE) test done? In what cases?
There are several reasons why a TEE test may be performed. Let's take a look at what they are:
1. If a regular echocardiogram (TTE) is not enough: After a regular echocardiogram (TTE) performed on your chest, your doctor may need a clearer, more detailed view of your heart. In such cases, a TEE test may be performed in addition to the TTE to help diagnose a heart problem or plan treatment.
Imagine that you are walking down the street and you see some beautiful plates in a shop through the glass. You can see that the plates have flower patterns, but it is not clear exactly what flowers they are, what the details are, because there are people around and there is glass. So you go inside the shop and look closer at the plates. That is when you see that they are roses.
That's how a normal echocardiogram (TTE) done on the chest is like looking through a glass in a store. It can tell you a lot of things. But this TEE is like going into a store and picking up a plate. Some parts of the heart, especially the ones on the back, are very clear on this TEE. Because your esophagus is located behind your heart, it's a great place for the transducer to send and receive sound waves.
It is worth looking at these parts in particular:
* Left atrium: The upper left chamber of the heart.
* Left atrial appendage (LAA): A small, ear-like sac in the left atrium. This is where blood clots sometimes form.
* Interatrial septum: The wall that separates the left and right atria.
* Thoracic aorta: The part of the aorta that passes through the chest.
Sometimes doctors do a TEE instead of a TTE. This is for the following reasons:
- If the chest structure is in a position that makes it difficult to perform a TTE.
- If you have lung diseases (as they can obscure the view of the heart).
2. In emergencies, life-threatening situations: In some emergencies, doctors need to see the condition of the heart quickly. Then `(TEE)` is very useful. For example:
- Hemodynamic instability (blood pressure and circulatory problems)
- Low blood pressure (Hypotension)
- Decreased oxygen levels (Hypoxia)
- Emergency situations that require immediate evaluation, such as aortic dissection.
- When a heart attack is suspected.
- Problems with prosthetic valves (such as a blood clot, infection).
- Trauma to the chest.
3. Check for blood clots before any medical procedure: When treating certain heart rhythm disorders (arrhythmias), such as catheter ablation or electrical cardioversion, a TEE is done to check for blood clots in the heart before the procedure. This is because if there is a blood clot, it can break loose during the procedure and block a blood vessel (thromboembolism).
4. To help with surgeries and other medical procedures: A TEE is a very valuable tool during some surgeries and medical procedures. It is used to see the structure of the heart before surgery and to confirm the success of the surgery after it is done. Examples:
- Surgery for congenital heart disease.
- Valve repair.
- Valve replacement.
Also, in some catheter-based treatments, that is, treatments where a thin tube is passed through a blood vessel to the heart, a TEE is used to look inside the body and provide real-time images to guide the procedure. Examples:
- `(Transcatheter aortic valve replacement - TAVR)`
- `(Transcatheter mitral valve repair)`
- `(Transcatheter tricuspid valve repair)`
- `(Transcatheter left atrial appendage closure)`
Is the TEE test done inside the body? Is anesthesia used?
Yes, a TEE is considered an invasive test because it involves inserting a device into the body. You may feel some discomfort, but the risk of serious problems is low.
Most of the time, a TEE test only requires local anesthesia and moderate sedation . This means that the doctor will spray a numbing medicine into the back of your throat. He or she will also give you an intravenous (IV) medication to help you relax.
Most people do not need general anesthesia, but it is a good idea to talk to your doctor about what is best for you.
So, are we being put to sleep at this time? Are we conscious?
The moderate sedation will make you feel sleepy and will allow you to undergo the test without too much discomfort. The medical staff will continue to monitor you to see if you are having any discomfort. They may give you more sedation if needed.
Even if you were to be given `(General anesthesia)`, you would be completely asleep and would not remember anything about the test. However, if you are given `(General anesthesia)`, you would have to be connected to a `(Breathing machine).` Also, because you are put into a deep sleep, it takes a little longer to recover than with moderate sedation.
How long does this test take?
The TEE test can take up to 90 minutes to complete. However, the imaging part usually takes about 15 minutes .
How should we prepare before the (TEE) test?
Be sure to discuss your medical history with your doctor. Some medical conditions can make a TEE test risky. Be sure to tell your doctor if you have any of the following conditions:
- Esophageal cancer
- Gastritis
- GERD (Chronic acid reflux)
- Hiatal hernia
- A history of intravenous drug use (IV drug use)
- Problems swallowing
- Sleep apnea
- Stomach cancer
Also, tell us if you are taking medication for these things:
- Sleep issues
- Anxiety
- Pain
Your doctor will give you detailed instructions on how to prepare for the TEE test. Be sure to follow those instructions exactly. Don't be afraid to ask if there is anything you don't understand. The instructions will include the following:
- The time to stop eating and drinking (usually at least six hours before the test).
- When should you take your usual medications?
- Avoid drinking alcoholic beverages for a period of time (perhaps a few days before the test).
- Other things you should or shouldn't do before `(TEE)`.
What happens during the (TEE) test?
These are the steps that typically occur during a `(TEE)` test:
1. You will be given a hospital gown to wear.
2. The doctor will place small stickers called ``Electrodes'' on your chest. These can be used to monitor the electrical activity of your heart during the ``TEE''.
3. A blood pressure cuff will be placed on your arm, and a pulse oximeter will be attached to your finger to monitor your oxygen levels.
4. You will be given a gargle to numb your throat. The doctor will spray a medicine into your throat. This is a local anesthetic. This is why you will not feel any pain during the TEE.
5. You will be given an intravenous (IV) sedative to help you relax.
6. You may need a small tube (nasal cannula) placed in your nose to give you oxygen.
7. You will be turned to the left side of the examination table and made to lie down.
8. The doctor will slowly insert the ``Endoscope`` (a thin, long, flexible tube) into your mouth. At the tip of the tube is a ``Transducer``. This tube goes down your throat and into your food pipe. It is lubricated to make it easier to go down. Sometimes you will be asked to swallow to help the ``Transducer`` get into the right place. This may seem a little uncomfortable, but the doctor will do this very carefully. They will give you medicine to numb your throat, so you won't feel much pain.
9. The doctor will take the pictures. You should not feel any pain. However, you may feel a slight pressure in your chest as the transducer is moved to different places. This part will take about 10-15 minutes.
10. The doctor will remove the tube from your throat and continue to monitor your blood pressure, pulse, and oxygen levels.
11. Wait until the doctor says you can go home.
What can I expect after the (TEE) test?
You will need someone to drive you home after the TEE test. You will not be able to drive for 24 hours because of the effects of the sedatives. You can expect the following:
- Your throat will be numb for about an hour. It will subside after a while. Don't eat or drink anything until the numbness goes away. If you eat or drink too quickly, you may choke.
- You may have a sore throat for about two days. This is normal and will subside in a few days. However, if the pain persists or worsens, talk to your doctor.
Are there any risks to the (TEE) procedure?
Some people get a sore throat after a TEE. It can last for a few hours or up to three to five days.
Other complications are rare, but possible:
- Allergic reactions to medications.
- Aspiration pneumonia is caused by food or liquids entering the respiratory tract.
- Problems with blood pressure or heart rhythm.
- Minor bleeding from the digestive tract.
Before having this test, it is important to talk to your doctor about the risks of TEE.
How do I get the results of the (TEE) test?
Your doctor will talk to you about your test results. You may also have them as part of your electronic medical record (an online system where you can see your medical information). Talk to your doctor about when you will get the results and how to look after them.
It's normal for some people to feel a little nervous or scared when it comes to medical tests. However, tests like a Transesophageal Echocardiogram (TEE) can play a big role in keeping you healthy or treating problems that arise. A TEE is a common test that has a low risk of complications. If you're having a TEE, talk to your doctor about how to prepare for it and what to expect.
Finally, remember this.
The TEE test is a special method that allows you to see the inside of your heart clearly. Although it may seem a little uncomfortable, it is a great help in diagnosing heart diseases and treating them properly. The most important thing is that if you have any questions or doubts, talk to your doctor about them. Then you can face this test without fear and with confidence.
` Transesophageal echocardiogram, TEE, heart test, heart, endoscope, echo test, esophagus
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