Risks of the endoscopic mucosal resection include:

  • Bleeding. Bleeding, the most common complication, can often be detected and corrected during the procedure.
  • Puncture (perforation). There is a slight risk of a puncture through the wall of the digestive tract. The risk of perforation may depend on the size and location of the lesion that's removed.
  • Narrowing of the esophagus. For people who have endoscopic mucosal resection of the esophagus, there is some risk of narrowing of the esophagus (esophageal stricture), particularly if a lesion encircles the circumference or nearly the entire circumference of the esophagus. Removing the lesion can lead to scarring that narrows the esophagus, a condition that may lead to difficulty swallowing and require further treatment.

Call your doctor or get emergency care if you experience any of the following signs or symptoms after undergoing endoscopic mucosal resection:

  • Fever
  • Chills
  • Vomiting
  • Black stool
  • Bright red blood in the stool
  • Chest or abdominal pain
  • Shortness of breath
  • Fainting
Sep. 29, 2011