Surgical treatment of MCO is associated with high mortality and frequent development of postoperative complications. Stoma formation is the traditional method of urgent treatment of MCO. Currently there are more than 150 methods of colorectal stomas formation, but all of themare associated with a high risk of complications (10-20%), inclusively both early and late postoperative period. It results in longerhospital stay and requires additional financial expenses, also reoperations can be fatal for patients.~Analysis of recent publications devoted to the treatment of MCO shows increasing implemented of new strategies of patents management, such as fast track surgery, or fast track recovery strategy in clinical practice. Minimally invasive endoscopic procedures as a first stage of MCO treatment leads to transformation of previously performed multi-stage surgical interventions into one - stage.~Development of up-to-date endoscopic science and technology provides a wide usage ofself-expandable metal stent (SEMS) in clinical practice. This strategy helps to avoid stoma formation or emergency surgery, becoming a bridge to a radical surgery.~There are currently no studies directly comparing discharge stoma with endoscopic self-expandable metal stenting in preparation for colorectal cancer radical surgery.
Compare the effectiveness of Self-expandable metal stent (SEMS) and diverting stoma formation for the bowel preparation as a bridge to surgical treatment of patients with MCO.