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What will happen during a transesosphageal echocardiogram (TEE)?

Once you have been escorted into the exam room, you will remove your clothing from the waist up (women will be given a gown to wear for privacy) and lie down on a padded table. Sticky electrode patches will be applied to your chest with wires that connect to an electrocardiogram (ECG) machine that monitors and records your heart rate and rhythm. You will also have a blood pressure cuff wrapped around your arm and an oxygen sensor clipped to your finger. You may be given oxygen through a soft tubing that fits in your nose. A nurse will start an intravenous (IV) line in a vein in your arm. If you have dentures or other removable dental work, you will be asked to remove them.

Next, your throat will be numbed with an anesthetic spray, gel or gargling solution. You may be given a sedative through the IV line, to help you relax during the procedure and lessen the likelihood that you will gag.

When it is time to begin the echocardiogram, the room lights will be dimmed, to make it easier to see the images of your heart on the echo monitor. The echocardiographer (a cardiologist specializing in echocardiography) will place a thin flexible tube in your mouth with a small probe, or transducer, on the tip. You will be asked to swallow the tube as it is passed into your esophagus, the food pipe that connects your mouth to your stomach. During the procedure, the echocardiographer will move the transducer in your esophagus and stomach in order to take pictures of your heart from various angles, or views. This movement should not be uncomfortable.

Just as with standard echocardiography, the transducer sends harmless sound waves into the heart and receives the “echo” waves that bounce back off of the heart. These echoes are translated by a computer into images of your heart. Because the transducer is so close to the heart during TEE, it can capture small details of the heart’s structure, and the images will be very high quality.

Throughout the test, the echocardiographer will save specific images for later review. Once the echocardiographer has obtained all the detailed information about your heart, he or she will gently remove the transducer probe from your esophagus. This should not be too uncomfortable for you. As the transducer comes out, the echocardiographer will also be able to obtain detailed images of your aorta to look for any evidence of any fatty deposits in the wall of the aorta. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.