Use of Nd-Yag laser ablation in colorectal obstruction and palliation in high-risk patients.

Diseases of the Colon and Rectum
S WalfischS Ball

Abstract

Conventional treatment for colonic obstruction due to cancer or benign anastomotic strictures in high-risk patients or unresectable cases in some form of colostomy. This procedure has the negative aspects of requiring a general anesthetic and leaves the infirm patient with a stoma that they cannot easily attend to. Ablation of tumor by Nd-Yag laser has been available for several years, with passage of the laser fiber through a colonoscope. To evaluate the role of laser photocoagulation in the palliation of colorectal tumors or benign strictures, the authors summarized their initial experience, trying to define the indications, various methods of treatment, and complication rate in these patients. This technique is difficult to perform and has the added risk of intestinal perforation but does obviate anesthetic and surgical risks. Seven patients with recurrent metastatic colorectal obstruction, three patients with benign colonic strictures, and two patients with large villous tumors were treated with Nd-Yag laser passed via the colonoscope. The mean age was 71 years (range, 52 to 86 years). Five patients received sedatives only, six patients received epidural anesthetic, and one had a general anesthetic. The average total energy...Continue Reading

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