Resumen de Estudio epidemiológico sobre el tratamiento con hemodiálisis en Aragón

Antonio Gascón Mariño, Belén Moragrega, Rosario Moreno López, Rafael Virto, Raquel Pernaute Lavilla, Elena Castillón, Luis Miguel Lou Arnal, Jesús Pérez, María Josefa Aladrén Regidor, Francisco Javier García Labat, Ricardo Gómez, Pedro José Vives, Rafael Álvarez Lipe, Jesús Castilla, José Antonio Gutiérrez Colón

• The aim of this study was to know the treatment conditions and medical outcomes between 310 prevalent haemodialysis patients (55% males; mean age 66 ± 13 years) in Aragon. The data shown were collected at 10 haemodialysis units in Aragon. Diabetes mellitus, at 23 percent, was the most common cause of renal insufficiency. The mean (± SD) urea-reduction ratio (URR) was 66.5 ± 8.6%. We observed that 55% of the population reached an URR higher that 65%. The duration of dialysis session was 226 ± 22 minutes, and the rate of blood flow 285 ± 42 mL/min. The percentage of patients with high-flux membranes was 25%. The patterns of vascular access were: 78.2% arteriovenous fistula, 4.2% synthetic graft and 17.6% catheter. Ninety three percent of patients were treated with erythropoietin. The mean dose of erythropoietin was 111 ± 64 UI/kg weight/week. Forty percent of patients had haemoglobin below 11.0 g/dL (mean 11.2 ± 1.7 g/dL). The ferritin levels were below 100 ng/mL in 18% of the patients and 20% showed a transferrin saturation index below 20%. Forty four percent of patients were receiving vitamin D. The mean of main biochemical markers of mineral metabolism were: serum calcium 9.5 ± 1.0 mg/dL; phosphorous 5.6 ± 1.6 mg/dL; calciumphosphorous product 52.8 ± 15.5 mg/dL; PTHi 333 ± 388 pg/mL; and aluminium 27.3 ± 19.9 μg/L. Sixty one percent of patients had phosphorous levels below 6.0 mg/dL. Thirty nine percent of patients had aluminium levels lower than 20 μg/L. The mean serum albumin was 3.6 ± 0.4 g/dL. Thirty one percent of patients had albumin below 3.5 g/dL.