The impact of amino acid dialysate on anthropometric measures in adult patients on peritoneal dialysis: A systematic review and meta-analysis

Author:

Iyasere Osasuyi1ORCID,Nagar Ravi1,Jesus-Silva Jorge Antonio1,Pepereke Shingai1,MacConaill Kateryna1,Eid Ahmed1,Major Rupert W12

Affiliation:

1. John Walls Renal Unit, University Hospitals of Leicester NHS Trust, UK

2. Department of Health Sciences, College of Life Sciences, University of Leicester, UK

Abstract

Background: Glucose-containing dialysate underpins peritoneal dialysis (PD) therapy. However, its use is associated with amino acid loss in the dialysis effluent, a risk factor for protein-energy wasting (PEW) in PD patients. Amino acid-based dialysis solutions (AAD) may ameliorate this loss. However, the evidence of clinical benefit in preventing PEW is unclear. The aim of this review was to assess the effect of AAD versus standard dialysis solutions (STD) on anthropometric measures and serum albumin. Methods: Studies up until 30 September 2020 were identified from databases including MEDLINE and Embase, using a prespecified protocol (PROSPERO – CRD42020209581). Studies evaluating adults on PD were included. Data pertaining to muscle mass (primary outcome), other anthropometric measures and serum albumin were extracted. A meta-analysis of the eligible studies was conducted. Results: A total of 6945 abstracts were reviewed, from which 14 studies (9 randomised and 5 non-randomised) were included. There was no significant difference in any of the anthropometric measures, between AAD and STD during follow-up. Serum albumin at 6 months was statistically lower with AAD compared to STD [mean difference = −0.89 (95%CI −1.77 to −0.01, p = 0.046)]. The quality of evidence was graded low for each outcome. Conclusions: AAD may not alter anthropometric measures when compared to STD. The impact on serum albumin is uncertain, with an estimated difference that is unlikely to be of clinical value. These findings should be cautiously interpreted due to low quality of the evidence. Robust studies are needed to address the limitations in evidence.

Publisher

SAGE Publications

Subject

Nephrology,General Medicine

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