| الوصف: |
Colonic volvulus accounts for 3 to 5% of bowel obstructions in the United States. Current data reveal sigmoid volvulus as the most common colonic volvulus, followed by volvulus of the cecum, transverse colon, and splenic fixture. Despite a low incidence in the United States, diagnosis, management, and patient outcome depend on an appropriate index of suspicion and adherence to the proposed algorithm highlighting the approach to the patient with colonic volvulus. This review outlines the definition, pathogenesis, and epidemiology of colonic volvulus, as well as its clinical evaluation and treatment. Tables review the demographics of colonic volvulus in the United States, the differential diagnosis of and risk factors for colonic volvulus, important radiographic findings in colonic volvulus, and nonoperative management of sigmoid volvulus. Figures show the types of ileosigmoid knot; plain radiographs of cecal, sigmoid, transverse, and splenic flexure volvulus; contrast enema of cecal, transverse, splenic flexure, and sigmoid volvulus; cross-sectional abdominal imaging of cecal, sigmoid, and transverse colon volvulus and ileosigmoid knot; endoscopic evaluation in sigmoid volvulus; use of an esophageal overtube for placement of a rectal tube; necrotic cecum and transverse colon volvulus in the operating suite; and sigmoid volvulus in an elderly gentleman. This review contains 14 figures, 13 tables, and 165 references Keywords: Colonic volvulus, colonic obstruction, endoscopy, surgical intervention, ileosigmoid knot, splenic flexure volvulus, sigmoid volvulus, transverse colon volvulus, cecal volvulus |
