Transesophageal Echocardiogram (TEE)
A TEE is a test that uses a flexible tube to produce ultrasound waves to create pictures of the heart from inside of the esophagus and stomach. Sound waves are transmitted from the probe into your body and reflect off the tissues and organs to create pictures that can be seen on a screen.
The test is used to:
The TEE provides very clear pictures of the heart structures and blood flow. This test is often used to view hard-to-see structures or obtain more detailed pictures of the heart and aorta.
A TEE is frequently used for measuring the size and pumping strength of the heart as well as the shape and motion of the heart valves. This test may also be used to look for fluid around the heart and blood clots or masses inside the heart or aorta.
Preparing for the test:
- Do not eat or drink for six hours before the test.
- You will be asked to wear a hospital gown during the procedure.
- Leave valuables at home.
- Tell your doctor or nurse if you have a problem with swallowing or a history of esophagus or stomach conditions, such as hiatal hernia or cancer.
- Take all of your medications at the usual times, as prescribed by your doctor. If you have diabetes and take medications to manage your blood sugar, ask your doctor how to adjust your medications the day of your test.
- Tell your doctor or nurse if you have any allergies to medicines, especially medicines that make you relax.
- Bring someone with you to drive you home after the test. You should not drive until the day after the procedure.
What to expect during the test:
- You will be connected to several monitors.
- Electrocardiogram (ECG): electrodes (small, flat, sticky patches) placed on your chest and attached to an electrocardiograph monitor (ECG) that charts your heart's electrical activity
- Blood pressure monitor: a blood pressure cuff placed on your arm to monitor your blood pressure intermittently throughout the test
- Oximeter: a small clip placed on your finger to monitor the oxygen level of your blood
- An IV line will be inserted into a vein in your arm or hand for the delivery of any necessary medications.
- A local anesthetic will be sprayed to numb the back of your throat. and medicine will be given through your IV to help you relax and feel sleepy.
- You may be asked to lie on your left side on an exam table.
- The doctor will gently insert the probe into your mouth. As you swallow, the probe will be directed into your esophagus. You may feel the probe moving, but it is generally not painful and does not interfere with your breathing. When the probe is positioned in the esophagus just behind the heart, pictures of the heart will be taken.
The test will take about 1.5 hours.
What to expect after the test:
- The nurse will give you instructions about when you may eat or drink.
- Your throat may feel slightly sore for about 24 hours. When you can start drinking, soothe your throat with cold liquids and lozenges.
- Do not drive for 12 hours.
- Avoid alcoholic beverages for 12 hours.
A cardiologist will read the test and notify you of the results. A report will also be sent to your doctor.