Endoscopic Ultrasonography

Endoscopic Ultrasonography (EUS) allows your doctor to examine the lining of your esophagus (the tube connecting your mouth to your stomach) and stomach along with the walls of your upper and lower GI tract. The upper GI tract consists of the esophagus, stomach, and duodenum, and the lower tract includes your colon and rectum. EUS is also used to study other organs that are near the GI tract including the lungs, liver, gallbladder and pancreas. The risks and benefits and possible complications will be discussed with you by your doctor prior to your procedure.

Your doctor will use a scope that has a built-in miniature ultrasound probe and pass the scope either through your mouth or anus, to the area to be examined. Your doctor will instruct you on colon cleansing for the EUS of the colon or rectum. Sound waves will then be used to create visual images of the digestive tract.

EUS, which usually takes less than 1 hour, provides detailed images and is used to diagnose certain conditions or evaluate lumps or lesions to help treatment decisions. If a needle biopsy or drainage of a cyst is done, then the procedure will be longer than 1 hour.

For your EUS, the stomach should be completely empty. You should have nothing to eat or drink for at least 8 hours prior to your procedure. This includes water, gum, and/or mints. Your physician will instruct you regarding the time to begin fasting depending on the time of your procedure. You may brush your teeth, but do not swallow the water.

You will be sedated during the procedure so you must make an arrangement to have someone drive you home. Sedation can affect your judgment and reflexes for the entire day. You will not be able to drive, drink alcohol, or operate machinery until the next day.

Prior to the procedure, you will have an intravenous inserted. Your nurse will obtain a full medical history from you including medical conditions, medications you take, previous surgery and family history. You will be brought to the procedure room on a stretcher and a heart monitor, blood pressure cuff and pulse oximetry monitor will be placed. You will also receive oxygen through a small tube under your nose. A small plastic bite guard will be gently placed between your teeth to protect the scope. Once you are positioned and monitored, sedation will be administered through your intravenous by our Anesthesiologist. You will drift off to sleep before your EUS begins.

Once the procedure is complete you will awaken quickly and remain in the Post Anesthesia Care Suite until you are ready to go home, usually within 1-11/2 hours. Your throat may be a little sore, and you may feel slightly bloated right after the procedure because of the air/water in your stomach introduced during the exam. This should pass quickly. Your physician will explain the results to you after your procedure or at your follow up visit. If your physician takes specimens during the procedure (called biopsies), you will have no sensation or pain at the time. This tissue will be evaluated by the laboratory and you can expect to hear results from your physician within a week.

Following are instructions which will also be given to you by your doctor. Please review them and follow them as directed.

On the day of your procedure: Plan to arrive at the time designated by your physician.

  • Please bring your insurance card, Photo ID, insurance co-pay and all forms completed.
  • Please do not apply lotion before the procedure.
  • Please come accompanied by another adult or plan for a ride home – you will not be able to drive for 24 hours following sedation.
  • Please bring a list of your medications you are currently taking with the dosage and times including vitamins and herbal supplements.
  • If you take blood thinners, aspirin, Motrin, anti-inflammatory medication, notify your physician prior to your procedure.
  • If you are taking Blood Pressure medication, heart medication or seizure medication – you make take that in the morning with a sip of water.
  • Diabetic patients – Consult your PCP regarding medication the day of the procedure – your blood sugar level will be taken the day of the procedure.
  • If you have any medical questions, please contact your doctor.