Dialysis-related pathology (DRP) observed in long-term haemodialysis patients is increasingly reported. Among DRP manifestations, cardiovascular disease is the most frequent, being the first cause of mortality in haemodialysis patients. Alterations in lipid metabolism and oxidative stress are recognised as major risk factors that could be prevented or reduced by optimal therapy.In order to evaluate the rationale for preventive intervention against oxidative damage we review the factors that are implied and may be responsible for the imbalance between prooxidative and antioxidative mechanisms in haemodialysis patients. Oxidative stress resulting from this imbalance is responsible for increasing stress markers and enhancing susceptibility to LDL oxidation. Factors implied in this prooxidative state belong to four groups: (1) uremia and comorbid status of the end stage renal disease (ESRD) patient; (2) losses of antioxidant substances via the dialysis; (3) haemoincompatibility of the dialysis system; (4) adjuvant therapy. Such prooxidant status could have further deleterious consequences since it has been recently shown that antioxidant status could modulate cell functions such as reactive oxygen species (ROS) production, adhesive molecule expression and/or cell proliferation.Preventive modalities, including use of biocompatible membrane, ultrapure dialysate, exogenous supplementation of antioxidant vitamins, extracorporeal removal of ROS and oxidatively-modified substances, would appear highly desirable to reduce complications of long-term dialysis patients.

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We conclude that intravenous glucose administration during high-flux HDF using polysulphone membranes increases significantly both ultrafiltration capacity and dialysis dose delivery.

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