Malignant colorectal obstruction treated by means of self-expanding metallic stents: effectiveness before surgery and in palliation |
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Authors: | Camúñez F Echenagusia A Simó G Turégano F Vázquez J Barreiro-Meiro I |
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Institution: | Departments of Radiology and Surgery, Hospital General Universitario "Gregorio Mara?ón," Madrid, Spain. |
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Abstract: | PURPOSE: To determine the effectiveness and safety of metallic stents in the treatment of malignant colorectal obstruction before surgery and for palliation. MATERIALS AND METHODS: Eighty patients with acute malignant colorectal obstruction presumed to be malignant were treated by means of implanting self-expanding metallic stents. RESULTS: Stent placement was successful in 70 of the 80 patients and resolved bowel obstruction in 67 patients (96%). Two patients had colonic perforation and developed peritonitis 18 and 24 hours after stent placement; one patient died as a consequence. Thirty-three patients underwent elective surgery after 7 days +/- 3 (SD; range, 4-10 days), and adequate tumoral coverage and cleansing of the colon were observed in all patients. Stent placement was used as final palliative treatment in another 35 patients. Patient follow-up lasted a mean of 138 days +/- 93 (range, 36-334 days). The survival rate for the palliative group was 55% at 3 months, 44% at 6 months, and 25% at 9 months. The estimated primary stent patency rate was 91% at 3 and 6 months. CONCLUSION: Management of colorectal obstruction by using metallic stents was effective and safe, although colonic perforation is a potential complication. In cases of palliation, the method may obviate palliative colostomy. |
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