How you prepare

By Mayo Clinic Staff

Before you have endoscopic mucosal resection, you'll be asked to provide the following information:

  • All of the prescription medications, over-the-counter drugs and dietary supplements you take — particularly diabetes medications and blood-thinning drugs, including aspirin
  • Doses of each medication
  • Drug allergies
  • All medical conditions, including heart disease, lung disease, diabetes and blood-clotting disorders

Your doctor may make changes to your medication routine, such as temporarily stopping some blood-thinning medications.

Before the procedure

You'll receive written instructions about what to do starting the day before the procedure. These instructions may vary depending on the location of the lesion or lesions being removed. In general, the instructions will likely include the following:

  • Restricted diet. The day before the procedure, your diet may be limited to clear liquids, such as water, broth, and tea or coffee without milk or cream.
  • Fasting. You'll be instructed when to begin fasting. You may not be able to eat, drink or smoke at all after midnight the day before the procedure.
  • Cleaning the colon. If the procedure involves the colon, you'll likely use a liquid laxative or an over-the-counter enema kit to empty your bowels completely and clean your colon.

You'll also sign an informed consent document giving your doctor permission to perform the procedure after the risks and benefits have been explained to you.

Travel arrangements

Because endoscopic mucosal resection is almost always performed as an outpatient procedure, you'll likely go home the same day. However, because of sedation used during the procedure, you'll need to make plans to have someone take you home after you're released from the hospital or clinic.

Sep. 29, 2011