[Two Effective Cases of Re-Insertion of Self-Expanding Metallic Stent(SEMS)for Re-Obstruction of Colon Cancer after SEMS Treatment].

Recently, self-expanding metallic stent (SEMS) have been found to be useful for treatment of intestinal obstruction by colorectal cancer, either as a bridge to surgery or terminal treatment. When SEMS are used for patients in the terminal stage with obstruction due to colorectal cancer, re-obstruction is a severe problem. We report 2 cases of re-insertion of SEMS for obstruction of colon cancer after the first insertion of SEMS. No major problems occurred in either the 2 cases. In the first case, the patient suffered from re-obstruction of colon cancer 6 months after the first SEMS treatment and died 9 months after the second SEMS treatment. In the second case, the patient suffered from re-obstruction of colon cancer 5 months after the first SEMS treatment and died 7 months after the second SEMS treatment. Re-insertion of SEMS for a second obstruction due to colorectal cancer after SEMS treatment is useful for terminal treatment for maintaining QOL.