What is a TEE?
A TEE is a test that allows the doctor to view the inside structures of the heart and major blood vessels. A thin, bendable tube with a special tip at the end, is inserted through the mouth and down the esophagus. The tip sends out sound waves that are picked up by a special receiver that looks like a microphone, called a transducer. These signals are changed into computerized images of the heart. Because the esophagus is located just behind the heart, this specialized view of the heart is very clear.
 
Why am I having the test?
A TEE can detect heart and heart valve abnormalities. It can also determine if an artificial valve is functioning correctly. If you have a history of stroke, your doctor may have requested this test to look for a possible source of blood clots which may have caused the stroke.
 
How do I get ready?
The cardiologist who performs the TEE also reviews your medical history and briefly examines your heart and lungs. The procedure, its benefits and possible risks, will be explained and you will be asked to sign a consent form. Don't hesitate to ask questions concerning the test and alert the doctor if you think you might be pregnant.
 
Do not eat or drink anything for six hours before the procedure. Take your prescription medications, but only with small sips of water. We will ask that you empty your bladder right before the test and that you remove dentures and eyeglasses. Please bring your hearing aide if you have one.
 
What happens during the procedure?
Prior to the procedure, an intravenous line (IV) is started. Your throat will be sprayed with a numbing medicine and to help you relax, a sedative will be given through the IV. This medication will make you feel groggy, but you will still be awake and able to respond to questions. The doctor will put a small protective guard around your teeth. He/she will then advance the TEE probe as you swallow. A continuous electrocardiogram (ECG) displays your heart rate and your blood pressure is checked frequently. A probe placed around your finger tip monitors the oxygen level in the blood. Additional oxygen, if needed, is supplied through a small plastic tube placed beneath your nose.
 
How long does the test take?
The total procedure usually takes less than 30 minutes.
 
What happens after the procedure?
You will be monitored for about 30 minutes after the procedure to be sure your blood pressure and breathing are stable. If you are a patient in the hospital, you will be returned to your room. Outpatients are ready to return home once the IV line is removed. We ask that you have a friend or family member drive you home since the sedatives may leave you too groggy to drive. We also suggest you rest for about two hours to allow the effects of the sedatives to wear off. Because your throat may be still be a little numb, slowly resume your diet one hour after the procedure. Some patients report a slight sore throat for up to 24 hours after the procedure.
 
How do I find out the results of the test?
The cardiologist performing the test will forward the results to your doctor who will discuss the findings with you.

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