[Leukapheresis and chronic inflammatory bowel disease: an additional obligation for the nephrologist]

The current treatment of chronic inflammatory bowel diseases involves the administration of different immunosuppressive drugs, whose use is associated with several side effects. Among the treatment alternatives, clinicians are attracted by leukapheresis, a method able to selectively remove from the circulation molecules involved in the onset and maintenance of inflammation. From 2007 to 2008, six patients were recruited from our clinics; four patients were affected by ulcerative colitis and two by Crohn's disease. They presented symptoms including abdominal pain and diarrhea despite treatment with steroids and sulfasalazine. Leukapheresis sessions were performed weekly (1 hour/week) for five consecutive weeks. The leukapheresis sessions resulted in a significant improvement in the patients' clinical as well as general conditions. The abdominal pain disappeared and significant reduction of diarrhea and fecal calprotectin levels was observed. No side effects occurred. The clinical benefits were supported by resolution of ulcerative lesions. After six months of follow-up no disease relapse was observed. The leukapheresis treatment has also prevented surgical interventions in all patients enrolled in the study. Our results suggest that leukapheresis may be helpful in patients affected by inflammatory bowel diseases, allowing early reduction of immunosuppressive drug administration.