This leaflet has been written to provide information about a test that allows a doctor to examine your heart using ultrasound waves (Trans-Oesophageal Echocardiogram). We hope it answers some of the questions or concerns you may have about the test. It is not intended to replace talking with medical, nursing or technical staff.
What is a Trans-Oesophageal Echocardiogram?
A Trans-Oesophageal Echocardiogram (TOE) is a test that allows a doctor to examine the structure of your heart and the heart valves using ultra sound waves.
How is it done?
The test is usually done under sedation, which may make you feel quite drowsy. The back of your throat is sprayed with a local anaesthetic to numb the area. A mouth guard is placed in your mouth and a small probe is passed down your throat. Once in position the probe lies directly behind the heart. Detailed pictures are taken of your heart using ultra sound waves. The test is useful when a more defined image of the heart valves is needed.
Will I have any pain during the test?
You may feel slightly uncomfortable when you swallow the probe but it should not feel painful. You will be given sedation, which will help you to relax and make you feel quite drowsy. Some people fall asleep during the test.
How long does the test take?
The test usually takes about 30 minutes.
How do I prepare for the test?
You will be informed when to stop eating and drinking prior to the test. Please do not drive to the hospital as the sedation given may make you feel drowsy and unable to drive home.
What are the benefits of having the test?
The test allows your doctor to take clear, detailed pictures of your heart. The structure and function of your heart can then be closely examined.
Are there any risks involved?
There is a small risk of causing a tear to the throat as the probe is passed down. You may be aware of a fast heart beat during the test. Any risks involved with the test will be discussed with you in more detail before you sign a consent form.
What alternatives do I have?
Other tests that allow a doctor to examine the function and structure of the heart include Echocardiogram (ultra sound waves through the chest wall) and Coronary Angiogram. Your doctor would be happy to discuss any alternative tests if they are applicable to you.
What can I expect after the test?
Following the test you will feel quite drowsy. You will be taken back to the ward were you will need to rest for about two hours. You will be informed when you are able to eat and drink.
When can I resume normal activities?
You will be able to go home a few hours after the test. You should not drive until the following day. You may resume normal activities 24 hours after the test.
Further information
- www.nhsdirect.nhs.uk
- www.bhf.org.uk
- www.dipex.org
- British Heart Foundation Heart Information line on 0845 070 8070