- Anorectal function. Evaluation of obstipation and incontinence. Sphincter substitutes. Sphincter reconstruction Construction of reservoirs - Intestinal Ischemia, intestinal preservation and transplantation. Parameters, prevention and treatment. - Post-gastrectomy dumping and gastric evacuation disorders: development of new surgical procedures. - Exocrine pancreatic secretion. Experimental clinical studies. - RIGS - Prevention of ischemia and reperfusion lesions of liver and pancreas.