Endoscopic ultrasound (EUS) is a specialized procedure that blends endoscopy and ultrasound to obtain images and information about the digestive tract and the surrounding tissue and organs. Endoscopy refers to the procedure of looking inside your body using an endoscope, a flexible tube equipped with a light and camera at its end. Ultrasound uses high-frequency sound waves to create images of the structures inside the body.
EUS allows your doctor to look at the walls of your esophagus, stomach, and upper parts of the small intestine. It can also allow the examination of other organs near the gastrointestinal tract, including the lungs, liver, gallbladder, pancreas, and lymph nodes. It can be used to diagnose conditions that may cause abdominal pain or abnormal weight loss, and it's also valuable in evaluating known abnormalities, including lumps or lesions, which were detected at prior endoscopy or by X-ray tests.
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Endoscopic ultrasound (EUS) is a medical procedure that combines endoscopy and ultrasound to produce detailed images of the digestive tract and its nearby organs. It is primarily used for diagnostic purposes and can also be utilized to take biopsies of tissues or fluid.
While both use sound waves to create images, EUS allows for closer and more detailed imaging. With EUS, the ultrasound probe is inserted into the body, allowing it to get closer to the organs being examined.
Your doctor might recommend an EUS to evaluate symptoms such as abdominal pain or abnormal weight loss, diagnose conditions involving the gastrointestinal tract and nearby organs, or monitor previously identified abnormalities.
Typically, you will be asked to fast for several hours before the procedure. You should also discuss any medications you are taking with your doctor as you may need to adjust your routine for the procedure.
During an EUS, you will likely receive sedation. An endoscope will then be gently passed down your throat, through the stomach and into the small intestine. An ultrasound probe at the end of the endoscope generates sound waves to create images of the digestive tract and nearby organs.
The procedure usually takes between 30 minutes to 2 hours, depending on the reason for the procedure.
You will likely be sedated during the procedure, which can make you relaxed and drowsy. You might feel a slight discomfort as the endoscope is passed down your throat, but you should not feel pain.
As with any procedure, EUS does carry some risks, although they are relatively rare. Potential complications can include reaction to sedation, infection, pancreatitis, bleeding, and perforation.
After the EUS, you'll spend some time in a recovery room as the sedation wears off. Because of the sedation, you'll need someone to drive you home after the procedure.
Your doctor will discuss the preliminary results with you after the procedure, but the results from a biopsy typically take a few days.
If the EUS detects something abnormal, your doctor will discuss the findings with you and recommend the appropriate next steps, which could include further testing or treatment.
EUS is a valuable diagnostic tool, providing detailed images of the digestive tract and nearby organs, aiding in diagnosis and treatment planning for a variety of conditions. As with any medical procedure, if you have any questions or concerns about the procedure, it's important to discuss these with your doctor.