Evidence map›Paper›PMID 41055706›Full record

ArticleHeart and vessels2026

Comparative effectiveness of sodium zirconium cyclosilicate versus calcium polystyrene sulfonate for patients with heart failure.

Hiroki Shimada, Kayoko Mizuno, Koji Kawakami

Abstract readComparative StudyMulticenter Study
PubMed Publisher
In one paragraph

Article in Heart and vessels, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

3 authors.

Hiroki ShimadaDepartment of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Kayoko MizunoDepartment of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Koji KawakamiDepartment of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan. kawakami.koji.4e@kyoto-u.ac.jp.ORCID http://orcid.org/0000-0002-7477-4071

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Patients with heart failure (HF) are at increased risk of hyperkalemia, and implementing appropriate potassium-lowering therapy is essential for optimizing outcomes. Sodium zirconium cyclosilicate (SZC) is a selective potassium binder that effectively reduces serum potassium levels; however, its impact on mortality and cardiovascular outcomes in HF remains unclear. This study compared the effects of SZC and calcium polystyrene sulfonate (CPS) on a composite of all-cause death and major adverse cardiovascular event (MACE)-related hospitalization, along with individual MACE components and continuation rates of HF medications. We conducted a retrospective cohort study using data from the JMDC hospital database, including adult patients with HF who initiated SZC or CPS between April 2020 and September 2023 and continued treatment for at least 30 days. Propensity score-based inverse probability of treatment weighting (IPTW) and multivariable Cox models were used to control for confounding. A total of 12,918 patients were included (11,139 CPS; 1779 SZC), with a median follow-up of 147 and 138 days, respectively. After IPTW adjustment, baseline characteristics were balanced, except for the prescription year. The primary composite outcome (all-cause death or MACE hospitalization) occurred in 148 patients in the SZC group and 839 in the CPS group (Hazard ratio [HR] 1.16, 95% confidence interval [CI] 0.94-1.43). In a post hoc analysis, the composite of all-cause death and HF hospitalization occurred in 143 vs. 793 patients (HR 1.21, 95% CI 0.98-1.50). SZC use was associated with a higher HR for HF hospitalization (103 vs. 524 events, HR 1.36, 95% CI 1.06-1.75) and a lower HR for stroke hospitalization (6 vs. 80 events, HR 0.33, 95% CI 0.12-0.91). Mineralocorticoid receptor antagonists (MRA) continuation was more frequent in the SZC group [70.1% vs. 59.0%, weighted odds ratio, 1.39 (95% CI 1.11-1.75)]. These findings suggest that although SZC may not improve survival or overall cardiovascular outcomes, it may help maintain essential HF therapies such as MRA.

Indexed as

Heart FailureHyperkalemiaPolystyrenesSilicatesAgedFemaleFollow-Up StudiesHumansJapanMaleMiddle AgedRetrospective StudiesTreatment OutcomePolystyrenespolystyrene sulfonic acidSilicatessodium zirconium cyclosilicateCardiovascular outcomesHeart failureHyperkalemiaRenin–angiotensin–aldosterone system inhibitorsSodium zirconium cyclosilicate

Identifiers

PMID41055706

What OpenQuestion holds

Textmetadata
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.