Evidence map›Paper›PMID 33732984›Full record

ArticleKidney international reports2021

A Systematic Review and Meta-Analysis on Effects of Bicarbonate Therapy on Kidney Outcomes.

Sebastian Hultin, Chris Hood, Katrina L Campbell, Nigel D Toussaint, David W Johnson, Sunil V Badve

Open access · goldAbstract read
In one paragraph

Article in Kidney international reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
2.5field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Effects of dietary interventions for metabolic acidosis in chronic kidney disease: a systematic review and meta-analysis.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Pooled it
  2. Guideline
  3. Pooled it
  4. Longitudinal impact of sodium bicarbonate therapy on health-related quality of life in pre-dialysis chronic kidney disease with metabolic acidosis: a pragmatic trial in Malaysia.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
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  12. Risk-directed management of chronic kidney disease.Nature reviews. Nephrology · 2025
    Review
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  18. Metabolic acidosis in chronic kidney disease: mere consequence or also culprit?Pflugers Archiv : European journal of physiology · 2024
    Review
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  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 2 countries.

Sebastian HultinAustralasian Kidney Trials Network, The University of Queensland, Brisbane, Australia.
Chris HoodAustralasian Kidney Trials Network, The University of Queensland, Brisbane, Australia.
Katrina L CampbellAustralasian Kidney Trials Network, The University of Queensland, Brisbane, Australia.
Nigel D ToussaintAustralasian Kidney Trials Network, The University of Queensland, Brisbane, Australia.
David W JohnsonAustralasian Kidney Trials Network, The University of Queensland, Brisbane, Australia.
Sunil V BadveAustralasian Kidney Trials Network, The University of Queensland, Brisbane, Australia.
Kidney Health Australia · AUMiddlemore Hospital · NZPrincess Alexandra Hospital · AUThe George Institute for Global Health · AUThe University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimPreclinical studies suggest treatment of metabolic acidosis may slow chronic kidney disease (CKD) progression. This systematic review aimed to summarize evidence from randomized controlled trials (RCTs) concerning the benefits and risks of bicarbonate therapy on kidney outcomes.

methodsMedline, EMBASE, and Cochrane databases were searched for RCTs with ≥3 months' follow-up in patients with CKD (estimated glomerular filtration rate [eGFR] ≤60 ml/min per 1.73 m

resultsFifteen trials (2445 participants, median follow-up 12 months) were eligible for inclusion. Compared with placebo or no study medication, sodium bicarbonate retarded the decline in kidney function (standardized mean difference [SMD]: 0.26; 95% confidence interval [CI]: 0.13-0.40;

conclusionSodium bicarbonate may slow CKD progression. Adequately powered randomized trials are required to evaluate the benefits and risks of sodium bicarbonate in CKD.

Indexed as

acidosisbicarbonate therapychronic kidney diseaseclinical trialdialysiskidney function testskidney replacement therapy

Identifiers

PMID33732984
PMCPMC7938083
OpenAlexW3115850711

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.