We are pleased to present our readers the Proceedings of the International Symposium "New Perspectives in Hemodialysis, Peritoneal Dialysis, Arteriovenous Hemofiltration, and Plasma pheresis" which was held in Freiburg i. Br. (FRG) during Oct tober 6-8, 1988. The meeting was held on the occasion of opening the new dialysis unit of the University Hospital of Freiburg i. Br .. The topics discussed included membrane biocompatibility, catabolic factors associated with dialysis therapy, phar macological therapy in dialyzed patients, erythropoietin and renal anemia, new developments in CAVH, CAPD...