BACKGROUND AND METHODS: Intraoperative enteroscopy is an invasive technique for small bowel investigation. It enables us to investigate the entire small intestine and to treat pathological findings by endoscopic or surgical means at the same time. The investigation is invasive and that is why the proper indication is mandatory. RESULTS: Forty-one intraoperative enteroscopies were performed at our center within a 10-year period. The procedure was diagnostic in 37/41 patients (90.2%); in 3 patients no pathology was found, and in 1 patient we found only previously diagnosed celiac disease. The investigation was therapeutic in 35/41 (85.4%) patients; 2 patients with small bowel ulcers did not require any intraoperative therapy. The pathological findings were arteriovenous malformations (found in 12 patients), small bowel NSAID-induced or Crohn's ulcers (8 patients)--ulcerations and arteriovenous malformations were simultaneously found in three patients; carcinoid of the small intestine (5 patients); Peutz-Jeghers syndrome (5 patients); bleeding polyps (2 gastrointestinal stromal tumors, 1 paraganglioma, and 1 lipoma--in 4 patients); Rendu-Osler-Weber disease (2 patients); multiple cavernous hemangiomas in blue rubber bleb nevus syndrome (1 patient); Henoch-Schönlein purpura (1 patient); aortoenteral fistula (1 patient); and retrograde intussusception of Meckel's diverticulum (1 patient). In five patients with Peutz-Jeghers syndrome, 6-22 hamartomas (median of 18 per session) were removed by means of endoscopic polypectomy during intraoperative enteroscopy. There were no major procedure-related complications in our series. CONCLUSIONS: Intraoperative enteroscopy is accepted as the ultimate diagnostic procedure for complete investigation of the small bowel. Despite the introduction of double-balloon enteroscopy into clinical practice, intraoperative enteroscopy will be reserved for those cases where double-balloon enteroscopy cannot be performed or fails to investigate the entire small intestine, especially to prevent excessive bowel resection.

2nd Department of Medicine Charles University in Praha Faculty of Medicine at Hradec Králové University Teaching Hospital Sokolská 581 Hradec Králové 500 05 Czech Republic

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