[Bypass enteritis. The significance of end-to-end and end-to-side anastomosis in jejunoileostomy].

Jejunoileostomy is an effective procedure in the treatment of morbid obesity. The end-to-end and end-to-side anastomoses are competitive techniques. The end-to-end anastomosis prevents a reflux of food into the shunted intestine loops, but stool reflux to the colon very often occurs over the drainage anastomosis. The patients develop an immunological disease with fever and arthritis. Resection of the infected intestinal loop is the standard therapy. The immunologic manifestation after jejunoileostomy does not occur after end-to-side anastomosis; end-to-end anastomosis should therefore no longer be used.