Endoscopic Mucosal Resection (EMR) is an advanced endoscopic technique used to remove abnormal tissue (lesions) from the lining of the gastrointestinal tract. It allows removal of large or flat polyps and early-stage cancers without the need for surgery.
EMR is performed to:
Preparation is similar to standard endoscopy or colonoscopy, depending on the location of the lesion.
It is essential to inform your doctor if you are taking blood-thinning medications. These usually need to be stopped several days before the procedure.
Blood tests may be required beforehand. You will need someone to drive you home.
Under sedation, the endoscope is passed to the area of the lesion. A solution is injected beneath the lesion to lift it away from the deeper layers of the bowel wall. This creates a safety cushion and makes removal safer.
A specialised snare (wire loop) is placed around the lifted lesion, and an electrical current is applied to cut and cauterise the tissue. The removed tissue is collected and sent for laboratory analysis.
For larger lesions, EMR may be performed in a piecemeal fashion, removing the lesion in several pieces. The procedure typically takes 30 to 90 minutes.
You will be monitored in recovery. You may experience mild discomfort or bloating.
A follow-up colonoscopy is usually recommended at 3 to 6 months to check the resection site and ensure complete removal.
You should avoid strenuous activity, heavy lifting, and blood-thinning medications for several days after the procedure as advised by your doctor.
Although complications can occur, they are rare when the procedure is performed by a specialist. Possible risks include:
Seek immediate medical attention if you experience any of the following symptoms:
Please contact your doctor or present to the nearest emergency department immediately.
