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Serum albumin and mortality in patients with HIV and end-stage renal failure on peritoneal dialysis.


ABSTRACT:

Background

Peritoneal dialysis (PD) is an easily implementable dialysis modality in end-stage renal disease (ESRD). PD may improve access to renal replacement therapy in low- and middle-income countries; however, these countries have a higher prevalence of protein-energy wasting in patients and poorer socioeconomic conditions. We evaluated the effects of HIV infection on serum albumin levels in ESRD patients starting continuous ambulatory PD (CAPD) and mortality outcomes.

Methods

We conducted a single-center prospective cohort study of consecutive incident CAPD patients recruited from two hospitals in Durban, South Africa, from September 2012 to February 2015. Seventy HIV-negative and 70 HIV-positive ESRD patients were followed monthly for serum albumin levels and mortality events during the first 18 months of CAPD therapy.

Results

The HIV-positive cohort recorded 28 deaths (40%) among patients with a functional CAPD catheter at 18 months and 13 deaths (18.6%) in the HIV-negative cohort (p = 0.005). The mean serum albumin levels were lower in the HIV-positive cohort than in the HIV-negative cohort during the 18-month follow-up. The mean difference in serum albumin levels between the two cohorts was 4.24 g/L (95% confidence interval [CI] 2.02-6.46, p<0.001) at baseline and 3.99 g/L (95% CI 1.19-6.79, p = 0.006) at 18 months. HIV-positive status (adjusted regression coefficient -2.84, CI -5.00--0.67, p = 0.011), diabetes (adjusted coefficient -2.85; CI, -5.58--0.12; p = 0.041), and serum C-reactive protein and blood hemoglobin levels were independent predictors of serum albumin levels on multivariable linear regression. Baseline serum albumin <25 g/L (subdistribution-hazard ratio [SHR] 13.06, 95% CI 3.09-55.14, p<0.001) and CD4+ cell count <200 cells/?L (SHR 3.2, CI 1.38-7.45, p = 0.007) were independent predictors of mortality in our competing risk model.

Conclusions

HIV infection can adversely affect serum albumin levels in ESRD patients managed with CAPD, while low baseline serum albumin levels and impaired immunity reliably predict mortality.

SUBMITTER: Ndlovu KCZ 

PROVIDER: S-EPMC6557525 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Publications

Serum albumin and mortality in patients with HIV and end-stage renal failure on peritoneal dialysis.

Ndlovu Kwazi Celani Zwakele KCZ   Chikobvu Perpetual P   Mofokeng Thabiso T   Gounden Verena V   Assounga Alain A  

PloS one 20190610 6


<h4>Background</h4>Peritoneal dialysis (PD) is an easily implementable dialysis modality in end-stage renal disease (ESRD). PD may improve access to renal replacement therapy in low- and middle-income countries; however, these countries have a higher prevalence of protein-energy wasting in patients and poorer socioeconomic conditions. We evaluated the effects of HIV infection on serum albumin levels in ESRD patients starting continuous ambulatory PD (CAPD) and mortality outcomes.<h4>Methods</h4>  ...[more]

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