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Nefrología (Madrid)

On-line version ISSN 1989-2284Print version ISSN 0211-6995


CARAVACA, Francisco et al. During the pre-dialysis stage of chronic kidney disease, which treatment is associated with better survival in dialysis?. Nefrología (Madr.) [online]. 2014, vol.34, n.4, pp.469-476. ISSN 1989-2284.

Introduction: Specialised care of patients in advanced stages of chronic kidney disease (CKD) is associated with better survival in dialysis, but it is not known which treatments specifically favour this outcome. Objectives: To analyse normal treatment in advanced stages of CKD and establish which treatments are associated with better survival in dialysis as well as their relationship with causes of death. Material and method: Cohort, prospective observational study of 591 patients who started dialysis (491 haemodialysis and 100 peritoneal dialysis), who had previously been monitored in the CKD clinic. The treatments analysed were: antihypertensive treatments, statins, antiplatelet drugs, xanthine oxidase inhibitors, correction of metabolic acidosis, treatment with (calcium or non-calcium) phosphate binders, vitamin D (calcitriol or paricalcitol), erythropoietin and the availability of an internal arteriovenous fistula (IAVF). The independent association of each of these treatments with mortality in dialysis was analysed using Cox regression models adjusted for age, sex, pre-dialysis monitoring time, renal function at the start of dialysis, comorbidity, serum albumin and C-reactive protein, and with stratification of the type of dialysis. Results: With a median follow-up period of 28 months, the total number of patients who died was 191 (32%). In the multivariate models, we observed that, in addition to age, the comorbidity index, serum albumin, pre-dialysis treatment with angiotensin-converting-enzyme inhibitors and/or angiotensin receptor blockers, correction of acidosis with sodium bicarbonate and IAVF at the start of haemodialysis were significantly associated with better survival in dialysis. We did not observe differences in causes of death between the different treatments analysed. Conclusion: These results suggest a potential delayed benefit of some treatments in pre-dialysis stages on the outcome of dialysis. Furthermore, beginning dialysis without an IAVF, resulting in the need for intravenous catheters, worsens prognosis in these patients.

Keywords : Mortality; Dialysis; Angiotensin-converting enzyme inhibitors; Pre-dialysis.

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