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.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bowel preparation (absence of feaces) according to Boston Bowel Preparation Scale
Timeframe: on the 3rd day after obstruction treatment (SEMS or stoma formation)