Tehran University Medical Journal

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Intestinal obstruction is a significant disease specially in patients with previous surgery. Patients symptoms and signs usually are abdominal pain, vomiting, abdominal distention and obstipation. Adhesion bands secondary to previous abdominal surgery is the most common cause of small bowel obstruction and in USA up to 70% of small bowel obstruction is caused by adhesions. In our study adhesion is also the most common cause but 23% of patients have obstruction secondary to adhesion. In the literature colorectal cancers are the most common cause of colonic obstruction and volvulus is the third common cause of colonic obstruction after obstruction from compressive effect of other primary abdominal or pelvic tumors. In our study vuvulus was the most common cause of colonic obstruction and colorectal cancer was the second most common cause. The most common previous surgery that lead to obstruction in our study was appendectomy. From 112 patients 75% of patients had complete and 25% had partial obstruction. Frequency of mortality was six from 112 patients or 5.3%. Seventy percent of our patients had small bowel obstruction and 30% had colonic obstruction. Patients with hypertension before surgery for obstruction had greater risk of mortality in the postoperative period than other patients. Patients with intestinal gangrene had greater risk of postoperative complication and morbidity than other patients.

Keywords: Vululus, Adhesion band

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