[Intraoperative peroral endoscopy and vague sources of bleeding in the jejuno-ileum].

Although bleedings in the part of the jejunoileum only amount to about 1% of bleedings of the whole gastrointestinal tract, they can raise outstanding problems because of the difficulties in discovering the sources of bleeding and their localization. The importance of intraoperative endoscopy will be emphasized by example of 5 patients who suffered from recurrent bleedings. All of the other diagnostic procedures like x-ray examinations (angiography included), endoscopy and scintigraphy were fruitless.