Double-balloon endoscopy was started on a patient with crohn's disease and strong small intestinal adhesions.The balloon bs-4 at the tip of the scope en-580t ceased to inflate during ileal insertion.The balloon controller pb-20 was removed, and a 10 ml syringe was connected to try to deflate the balloon.The balloon did not deflate, but was able to inflate.Immediately after inflating, the patient complained of severe abdominal pain, and a laceration of the small intestinal mucosa and significant bleeding were observed.Conservative treatment by blood transfusion was performed, but the patient got into shock.Angiography was performed which identified the bleeding point artery, so hemostasis was performed by coiling.
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