Transesophageal Echocardiography (TEE) is one of the cardiac echocardiography methods. This procedure is performed by inserting a special tube with a thin ultrasound probe at its tip into the esophagus. Due to the esophagus's proximity to the heart, the heart and its surrounding major vessels can be visualized more closely and clearly compared to transthoracic echocardiography (TTE). Before starting the procedure, the patient's throat is numbed with a local anesthetic spray. The physician will inform the patient on how to swallow the tube. The patient is laid on their left side, similar to a normal echocardiography, and three electrodes are placed on their chest to monitor heart rhythm. Subsequently, the patient is given a mouthpiece to hold with their teeth, and the tube is gently guided through this mouthpiece into the esophagus. It is normal to experience gagging or nausea as the tube advances through the throat. In this respect, TEE resembles a gastroscopy procedure. Throughout the procedure, the patient's heart rhythm, blood pressure, respiration, and blood oxygen levels are monitored. The obtained heart images are recorded as video, and important frames are printed as hard copies. After the procedure is completed, the cardiology specialist will inform the patient about the procedure process and its results.