[Adequacy of dialysis at the Department of Nephrology and Dialysis of the Sveti Duh General Hospital in Zagreb and the Dialysis Outcomes Quality Initiative (DOQI) guidelines--comparison of the years 1998 and 2002].

Every year ever more and more patients in our country receive some form of dialysis, which provides life-saving renal replacement therapy for end-stage renal disease. In an effort to improve the quality and outcomes of dialysis care, the National Kidney Foundation--Dialysis Outcomes Quality Initiative (NKF-DOQI) have developed clinical practice guidelines for care of dialysis patients regarding hemodialysis adequacy, peritoneal dialysis adequacy, treatment of anemia, and vascular access. The morbidity and mortality of patients is strongly connected with dialysis adequacy and degree of anemia. We compared 180 patients on hemodialysis (HD) in 1998 and 177 patients in 2002, who are regularly treated in our Center with the use of DOQI guidelines. Dialysis adequacy was assessed by use of urea reduction ratio URR = 1-(post. urea/pre. urea), and overall wellbeing according to the degree of anemia, number of blood transfusions, presence of elevated blood pressure, and number of antihypertensives in therapy. In year 2002, 50% of the patients had adequate dialysis compared with 30% in 1998. The average duration on dialysis and the age of patients did not change. We recorded a rise in hemoglobin from 80 g/L to 92 g/L, and in the use of EPO (from 18% to 30%). No case of hypoalbuminemia was observed. The aim of dialysis is to improve the overall wellbeing of uremic patients. Comparing our results with DOQI-guidelines, we demonstrated that dialysis therapy could be improved to prevent complications and early mortality in dialysis patients.