Indy Gastro | Colonoscopy, rectal bleeding, diarrhea, constipation, endoscopy

Endoscopic Ultrasound (EUS)

Indy Gastro EUS Info Banner new


What is EUS?


Endoscopic Ultrasound 1 Endoscopic Ultrasound (EUS) allows your doctor to examine the lining and the walls of your upper and lower gastrointestinal tract. The upper tract is the esophagus, stomach, and duodenum; the lower tract includes your colon and rectum. Doctors also use EUS to study internal organs that lie next to the gastrointestinal tract, such as the gall bladder and the pancreas.

Your endoscopist will use a thin, flexible tube called an endoscope. Your doctor will pass the endoscope through your mouth or anus until it reaches the area to be examined. He will turn on the ultrasound component which produces the sound waves that create images of the digestive tract.

How Should I Prepare for an EUS?


Endoscopic Ultrasound 2 You should stop eating food and unapproved beverages by midnight on the night before your endoscopy. You may drink clear liquids until five hours before your endoscopy time. Approved clear liquids are: water, apple juice, white grape juice, cranberry juice, broth, bouillon, tea, black or sweetened coffee, colas, sodas, or carbonated beverages, Gatorade or other sports drinks, popsicles, and Jello.

Please note that for patients scheduled to go under general anesthesia, including Propofol, clear liquids need to be stopped earlier. Please refer to the specific instructions provided by your doctor.

Why is EUS done?


Endoscopic Ultrasound 5 EUS provides your doctor with detailed pictures of your digestive tract. Your doctor can use EUS to diagnose the cause of abdominal pain or abnormal weight loss. If your doctor has ruled out certain conditions, EUS can confirm your diagnosis and give you a clean bill of health.

Doctors also use EUS to evaluate an abnormality, such as a growth, detected at a prior endoscopy or by x-ray. EUS provides a detailed picture of the growth, so that your doctor can determine its nature and decide upon the best treatment. In addition, EUS can help doctors diagnose diseases of the pancreas, bile duct, and gallbladder when other tests are inconclusive.

Why is EUS used for patients with cancer?


Endoscopic Ultrasound 4 EUS helps your doctor determine the extent of certain cancers of the digestive and respiratory systems. EUS allows your doctor to accurately assess the cancer's depth and whether it has spread to adjacent lymph glands or nearby vital structures such as major blood vessels. In some patients, doctors can use EUS to obtain tissue samples for the purposes of diagnosis and treatment.


What can I expect during EUS?


Endoscopic Ultrasound 3 Practices vary among doctors, but for an EUS examination of the upper gastrointestinal tract, your endoscopist might spray your throat with a local anesthetic before the test begins. Most often you will receive sedatives intravenously to help you relax. You will most likely begin by lying on your left side.

After you receive sedatives, your endoscopist will pass the ultrasound endoscope through your mouth, esophagus and stomach into the duodenum. The instrument does not interfere with your ability to breathe. The actual examination generally takes between 15 to 45 minutes. Most patients consider it only slightly uncomfortable, and many fall asleep during it.

An EUS examination of the lower gastrointestinal tract can often be performed safely and comfortably without medications, but you will probably receive a sedative if the examination will be prolonged or if the doctor will examine a significant distance into the colon. You will start by lying on your left side with your back toward the doctor. Most EUS examinations of the lower gastrointestinal tract last from 10 to 30 minutes.

What are the possible complications of EUS?


Endoscopic Ultrasound 6Although complications can occur, they are rare when doctors with specialized training and experience perform the EUS examination. Bleeding might occur at a biopsy site, but it's usually minimal and rarely requires follow-up. You might have a sore throat for a day or more. Nonprescription anesthetic-type throat lozenges and painkillers help relieve the sore throat.

Other potential, but uncommon, risks of EUS include a reaction to the sedatives used, backwash of stomach contents into your lungs, infection, and complications from heart or lung diseases. One major, but very uncommon, complication of EUS is perforation. This is a tear through the lining of the intestine that requires surgery to repair.
The possibility of complications increases slightly if a deep needle aspiration is performed during the EUS examination. These risks must be balanced against the potential benefits of the procedure and the risks of alternative approaches to the condition.


Download Endoscopic Ultrasound Information PDFs

icon-pdfStandard Colonoscopy Bowel
icon-pdfMovi Prep Colonoscopy Bowel Prep


Follow us on

Contact Indy Gastro

  • (317) 865-2955 & (800) 403-4683
  • Mailing Address

    8051 S. Emerson Ave.
    Suites 150 & 200
    Indianapolis, IN 46237

  • Contact UsView All Locatons