EMR is an endoscopic technique developed for removal of flat lesions confined to the superficial layers of the GI tract. EMR is typically used for removal of lesions smaller than 2cm or piecemeal removal of larger lesions.
Endoscopic mucosal resection is a less invasive alternative to surgery for removing abnormal tissues from the lining of the digestive tract. These tissues may be:
- Early-stage cancer
- Precancerous lesions, which may become cancerous
Endoscopic mucosal resection is usually performed by a specialist in digestive system disorders (gastroenterologist) who has expertise in this technique.
Bleeding is the most common complication of EMR, with average rates of 10%. Most bleeding is observed during the procedure or within the first 24 hours. Delayed bleeding has been reported up to 14 days after the procedure.
Reported perforation rates with EMR are low (0.3% - 0.5%). Small perforations recognised during the procedure can be successfully sealed with endoscopic clips. Large perforations may require surgical intervention.