Introduction. Midgut malrotation is not commonly diagnosed in adults. We reviewed our experience and present one of the largest reported series of operative repair of malrotation in adolescents and adults. Methods. Retrospective review of medical records that carried the diagnosis of anomaly of intestinal fixation or malrotation was performed in our health system between September 1993 and February 2004. Results. Since 1993, we treated 32 patients with varying degrees of malrotation whether the presentation be acute, chronic, or incidental with a Ladd Procedure. Ages ranged from 11 to 83 years old (mean 33), with a slight male preponderance (56% male). Symptoms were present from less than one day to most of a lifetime. Patients presented with acute abdominal pain (50%), nausea and vomiting (59%), constipation (50%), abdominal distention (41%) and chronic abdominal pain (25%). Initial work-up included CAT scan (28%), UGI study (38%), and plain films (47%) prior to surgery. Twenty-eight percent of patients were found to have midgut malrotation incidentally during an operation for another reason. All patients underwent Ladd’s procedure. Complications occurred in 22% of the incidental group, 25% in the elective group, and 60% of the nonelective/nonincidental group. Prolonged postoperative ileus (4 days) occurred in 28% of patients; however, patients that had their malrotation repaired electively had a lower rate of prolonged ileus: 11% in the incidental group, 25% in the elective group, and 40% in the nonelective/nonincidental group. Average length of stay was 7.6 days. Symptoms attributed to malrotation resolved in all cases. There were no second-look operations and no mortalities. Conclusion. Intestinal malrotation is an important entity to consider in nonpediatric patients with vague abdominal complaints. When symptoms progress to acute abdominal pain, postoperative complications are greater. Based on our experience with late presentation of intestinal malrotation, we recommend elective Ladd’s procedure, which can be performed safely.
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