We report the use of indocyanine green (ICG) fluorescence for intraoperative diagnosis in two cases of strangulated ileus. We successfully preserved the bowel and avoided postoperative complications by detecting adequate perfusion and no necrosis in the intestine’s strangulated regions. In the first case, enhanced computed tomography (CT) revealed a closed loop intestine, which showed poor contrast, and we performed laparotomy with ICG fluorescence. In the second case, the CT scan revealed bowel obstruction without ascites. We conservatively treated the patient with the insertion of a long tube. The patient’s condition did not improve, and we performed laparotomy using ICG fluorescence. In both of these cases, the visual observation during laparotomy showed that the ileum had dark-red discoloration. We demonstrated perfusion and preserved the ileum by injecting 2.5 mg of ICG intravenously; fluorescence was observed in the dark-red ileum using the PINPOINT system (Novadaq, Kalamazoo, MI, US). Both patients recovered successfully after the surgery with no adverse events. Our data suggest that ICG fluorescence imaging can be one of the decision-making modalities in patients with strangulated ileus.
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