In TEE, a miniature ultrasound transducer is passed
down the esophagus (food tube) behind the heart. This
allows the physician to obtain very high quality images.
TEE is typically performed to evaluate strokes and TIA
(Transient Ischemic Attacks), previous valve replacements
and bypass surgeries, and other heart conditions.
Preparations before
the test
Do not eat or drink for at least 4 hours before
the test.
Arrange for a companion to accompany you and avoid driving
if the procedure is performed on an outpatient basis.
Be sure to notify the doctor or technologist if you
have any drug allergies or if you have any difficulty
in swallowing or problem with your mouth, esophagus
or stomach. Dentures will be removed during the test.
A written consent will be obtained before the test.
However if you are below 21 years of age, you
will be required to bring your legal guardian to sign
the consent.
How is the test done?
ECG electrodes will be connected to your chest. You
will be asked to lie on your left side. The doctor will
insert a hand plug on your hand. A sedative will be
given through your vein to help in relaxation and your
throat will be sprayed with an anesthetic to “numb”
it. The transducer will be passed down your throat to
obtain quality images. The heart rate and blood pressure
are monitored during the whole procedure.
After the procedure, driving is not allowed as you may
still feel drowsy. Eating and drinking should be avoided
for at least 2 hours because the throat will still be
numb and the food or drink could be aspirated into the
lungs.
You should plan to be in CMU for about two hours. The
actual procedure usually lasts 30 minutes. The remainder
of the time is spent in preparation and observation.
Is the test safe?
There is a small risk of complications including allergic
reactions, abnormal heartbeats, and perforation of the
gastrointestinal tract, bleeding, aspiration or even
stroke. The chance of this happening in an average patient
is approximately 1 in 10,000.
Can I undergo the test if I
am not feeling well?
No. If you are feeling ill because of fever, runny nose
or acute illness, you should not proceed with the test.
Please call Tel: 68502580 to change
the appointment.
Copyright 2006. Changi General Hospital. All Rights Reserved
2 Simei Street 3, Republic of Singapore 529889
Tel: (65) 6788 8833 Fax: (65) 6788 0933 Reg No 198904226R
