Karel Opatrný Jr., finished his medical studies at the Charles University in Pilsen in 1979. After graduation he began to work at the 1st Department of Internal Medicine at then part of the District Health Authority, and Charles University School of Medicine in Pilsen until the end of 1989. From 1990 to 1992 he worked as an assistant professor in the Department of Internal Medicine at Strahov in Prague. During 1992-1994 he was the Head of this department. In 1994 he returned to Pilsen and became the Head of the 1st Department of Internal Medicine, Charles University Medical School and Teaching Hospital. He worked in this position until his premature death in 2006. The principal subjects of his scientific contributions were: hemostatic disorders in hemodialysis patients; biocompatibility of dialysis membranes; and the novel field of proteomics. He published more than 300 scientific papers, most of them in international journals, and delivered more than 280 lectures.
Key words: nephrology, Karel Opatrný Jr., uremia, biocompatibility of dialysis membrane, hemostatic disorders, proteomics