6 research outputs found

    Rationale and design of the Sodium Lowering In Dialysate (SoLID) trial: a randomised controlled trial of low versus standard dialysate sodium concentration during hemodialysis for regression of left ventricular mass

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    Effect of centre- and patient-related factors on uptake of haemodiafiltration in Australia and New Zealand: a cohort study using ANZDATA

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    Background: The use of haemodiafiltration (HDF) for the management of patients with end-stage kidney failure is increasing worldwide. Factors associated with HDF use have not been studied and may vary in different countries and jurisdictions. The aim of this study was to document the pattern of increase and variability in uptake of HDF in Australia and New Zealand, and to describe patient- and centre-related factors associated with its use. Methods: Using the Australian and New Zealand Dialysis and Transplant Registry, all incident patients commencing haemodialysis (HD) between 2000 and 2014 were included. The primary outcome was HDF commencement over time, which was evaluated using multivariable logistic regression stratified by country. Results: Of 27 433 patients starting HD, 3339 (14.4%) of 23 194 patients in Australia and 810 (19.1%) of 4239 in New Zealand received HDF. HDF uptake increased over time in both countries but was more rapid in New Zealand than Australia. In Australia, HDF use was more likely in males (odds ratio (OR) 1.13, 95% confidence interval (CI) = 1.03–1.24, P = 0.009) and less likely with older age (reference 70 years OR = 0.48; 95% CI = 0.41–0.56); higher body mass index (body mass index (BMI) 30 kg/m OR = 1.46; 95% CI = 1.33–1.61), chronic lung disease (OR = 0.84; 95% CI = 0.76–0.94; P < 0.001), cerebrovascular disease (OR = 0.76; 95% CI = 0.67–0.85; P < 0.001) and peripheral vascular disease (OR = 0.77; 95% CI = 0.70–0.85; P < 0.001). No association was identified with race. In New Zealand, HDF use was more likely in Maori and Pacific Islanders (OR = 1.32; 95% CI = 1.05–1.66) and Asians (OR = 1.75; 95% CI = 1.15–2.68) compared to Caucasians, and less likely in males (OR = 0.76; 95% CI = 0.62–0.94; P = 0.01). No association was identified with BMI or co-morbidities. In both countries, centres with a higher ratio of HD to peritoneal dialysis (PD) were more likely to prescribe HDF. Larger Australian centres were more likely to prescribe HDF (36–147 new patients/year OR = 26.75, 95% CI = 18.54–38.59; 17–35/year OR = 7.51, 95% CI = 5.35–10.55; 7–16/year OR = 3.00; 95% CI = 2.19–4.13; ≤6/year reference). Conclusion: Haemodiafiltration uptake is increasing, variable and associated with both patient and centre characteristics. Centre characteristics not explicitly captured elsewhere explained 36% of variability in HDF uptake in Australia and 48% in New Zealand

    Patient survival on haemodiafiltration and haemodialysis: a cohort study using the Australia and New Zealand dialysis and transplant registry

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    Background: It is unclear if haemodiafiltration improves patient survival compared with standard haemodialysis. Observational studies have tended to show benefit with haemodiafiltration, while meta-analyses have not provided definitive proof of superiority. Methods: Using data from the Australia and New Zealand Dialysis and Transplant Registry, this binational inception cohort study compared all adult patients who commenced haemodialysis in Australia and New Zealand between 2000 and 2014. The primary outcome was all-cause mortality. Cardiovascular mortality was the secondary outcome. Outcomes were measured from the first haemodialysis treatment and were examined using multivariable Cox regression analyses. Patients were censored at permanent discontinuation of haemodialysis or at 31 December 2014. Analyses were stratified by country. Results: The study included 26 961 patients (4110 haemodiafiltration, 22 851 standard haemodialysis; 22 774 Australia, 4187 New Zealand) with a median follow-up of 5.31 (interquartile range 2.87-8.36) years. Median age was 62 years, 61% were male, 71% were Caucasian. Compared with standard haemodialysis, haemodiafiltration was associated with a significantly lower risk of all-cause mortality [adjusted hazard ratio (HR) for Australia 0.79, 95% confidence interval (95% CI) 0.72-0.87; adjusted HR for New Zealand 0.88, 95% CI 0.78-1.00]. In Australian patients, there was also an association between haemodiafiltration and reduced cardiovascular mortality (adjusted HR 0.78, 95% CI 0.64-0.95). Conclusion: Haemodiafiltration was associated with superior survival across patient subgroups of age, sex and comorbidity

    The impact of treatment with avacopan on health-related quality of life in antineutrophil cytoplasmic antibody-associated vasculitis: a post-hoc analysis of data from the ADVOCATE trial

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