Les eaux d’hémodialyse « suivi de la qualité physico-chimique des eaux d’hémodialyse du chu de Sétif »

Abstract

Hemodialysis involves an extracorporeal circuit, connected to an access to vessels, which allows blood to pass through a filter called a hemodialyzer. Dialysate is produced by a dialysis machine from ultrapure water and concentrate. Given hemodialysis water’s importance in extra-renal purification, since it is in direct contact with the patient's blood, it must be of satisfactory quality in relation to Algerian standards and/or European Pharmacopoeia, in order to avoid vital prognosis of hemodialysis patient being compromised. Our study is based on the monitoring of physicochemical quality of hemodialysis water at the University Hospital in Setif. In addition to dilution water of concentrated hemodialysis solution’s quality, we also focused on feed water quality. Analyses carried out in situ and in the laboratory, were focused on these samples (feed water and hemodialysis water) by measuring the following physicochemical elements: pH, electrical conductivity (EC), total hardness, chlorides (Cl-), free chlorine, total chlorine, ammonium ions (NH4+), sulphate anions (SO42-), acidity limit test, alkalinity limit test and oxidizable substances limit test. According to the results we obtained, the hemodialysis patients at the Setif University Hospital are protected from the risks related to the bad quality of the water used in the hemodialysis unit, because the majority of the results recorded are in conformity and meet the standards required by the Algerian regulations and/or European Pharmacopoeia. The rare non-conformities must also be avoided as much as possible in order to ensure a better protection of the hemodialysis patient. Finally, in health establishments, the pharmacist is responsible for hemodialysis water quality, and according to the Ministry of Health official recommendations, it is very strongly recommended that regular controls be carried out, especially by the establishment's pharmacists, in order to analyze, interpret and validate the physicochemical quality of the water used in the hemodialysis unit. This will allow to avoid possible complications related to the bad quality of this water.