An echocardiogram is a graphic outline of the heart's movement, valves and chambers. During the transesophageal echocardiogram, or TEE test, an ultrasound transducer, a device that produces high frequency sound waves, is placed on the end of an endoscope, a long flexible tube. The endoscope is then passed through the mouth and throat and down the esophagus. The TEE test provides a picture of the heart's valves and chambers and helps the doctor evaluate the pumping action of the heart. Complications can arise, so it is important to know the risks.
Soreness or Numbness
A common complication associated with the transesophagel echocardiogram is temporary throat soreness or numbness, according to Florida's Jupiter Medical Center. Most people will experience a slightly sore or numb throat during or following the test, as the endoscope travels past the mouth and throat and down into the esophagus. Normal sensation usually returns within an hour after the test and throat irritation typically improves a few days after the procedure.
Drowsiness and Dizziness
Some people may experience drowsiness or dizziness during or immediately following the transesophagel echocardiogram, according to the Cleveland Clinic. During the test, the patient is administered a solution to gargle that numbs the throat. The sonographer then sprays an anesthetic at the back of the throat. After an intravenous line or IV is inserted into the body, the anesthesiologist injects a pain-relieving medication into the IV that causes drowsiness. The localized anesthetic prevents choking and gagging, while keeping the patient alert and relaxed during the procedure. Most people will experience some drowsiness and dizziness following the procedure, so it is advised not to drive or operate machinery for at least 24 hours.
Heart Problems
Serious complications associated with transesophagel echocardiogram include heart problems. People who have a transesophagel echocardiogram may experience heart arrhythmia or abnormal heartbeats when the high frequency electrical sound waves from the ultrasound tranducer prevent, block or interrupt the electrical signals that control the heartbeat. Heart rates that are too fast, too slow or irregular can prevent the heart from pumping enough blood throughout the body and cause damage to the heart, brain and other vital internal organs.
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