Evidence map›Paper›PMID 34221383›Full record

ArticleClinical kidney journal2021

Hyperkalemia excursions are associated with an increased risk of mortality and hospitalizations in hemodialysis patients.

Angelo Karaboyas, Bruce M Robinson, Glen James, Katarina Hedman, Carol P Moreno Quinn, Patricia De Sequera, Kosaku Nitta, Roberto Pecoits-Filho

Open access · goldAbstract read
In one paragraph

Article in Clinical kidney journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.8field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

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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

8 authors at 7 institutions in 6 countries.

Angelo KaraboyasArbor Research Collaborative for Health, Ann Arbor, MI, USA.
Bruce M RobinsonArbor Research Collaborative for Health, Ann Arbor, MI, USA.
Glen JamesBioPharmaceuticals Medical, AstraZeneca, Cambridge, UK.
Katarina HedmanBioPharmaceuticals Business Unit, AstraZeneca, Gothenburg, Sweden.
Carol P Moreno QuinnBioPharmaceuticals Medical, AstraZeneca, Cambridge, UK.
Patricia De SequeraDepartment of Nephrology, University Hospital Infanta Leonor, Madrid, Spain.
Kosaku NittaDepartment of Nephrology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan.
Roberto Pecoits-FilhoArbor Research Collaborative for Health, Ann Arbor, MI, USA.
AstraZeneca (United Kingdom) · GBArbor Research Collaborative for Health · USAstraZeneca (Sweden) · SEHospital Universitario Infanta Leonor · ESPontifícia Universidade Católica do Paraná · BRTokyo Women's Medical University · JPUniversity of Michigan–Ann Arbor · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHyperkalemia is common among hemodialysis (HD) patients and has been associated with adverse clinical outcomes. Previous studies considered a single serum potassium (K) measurement or time-averaged values, but serum K excursions out of the target range may be more reflective of true hyperkalemia events. We assessed whether hyperkalemia excursions lead to an elevated risk of adverse clinical outcomes.

methodsUsing data from 21 countries in Phases 4-6 (2009-18) of the Dialysis Outcomes and Practice Patterns Study (DOPPS), we investigated the associations between peak serum K level, measured monthly predialysis, over a 4-month period ('peak K') and clinical outcomes over the subsequent 4 months using Cox regression, adjusted for potential confounders.

resultsThe analysis included 62 070 patients contributing a median of 3 (interquartile range 2-6) 4-month periods. The prevalence of hyperkalemia based on peak K was 58% for >5.0, 30% for >5.5 and 12% for >6.0 mEq/L. The all-cause mortality hazard ratio for peak K (reference ≤5.0 mEq/L) was 1.15 [95% confidence interval (CI) 1.09, 1.21] for 5.1-5.5 mEq/L, 1.19 (1.12, 1.26) for 5.6-6.0 mEq/L and 1.33 (1.23, 1.43) for >6.0 mEq/L. Results were qualitatively consistent when analyzing hospitalizations and a cardiovascular composite outcome.

conclusionsAmong HD patients, we identified a lower K threshold (peak K 5.1-5.5 mEq/L) than previously reported for increased risk of hospitalization and mortality, with the implication that a greater proportion (>50%) of the HD population may be at risk. A reassessment of hyperkalemia severity ranges is needed, as well as an exploration of new strategies for effective management of chronic hyperkalemia.

Indexed as

hemodialysishospitalizationhyperkalemiamortalitypotassium

Identifiers

PMID34221383
PMCPMC8243282
OpenAlexW3111149336

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.