Evidence map›Paper›PMID 32008199›Full record

ArticleInternational urology and nephrology2020

Serum osmolarity as a potential predictor for contrast-induced nephropathy following elective coronary angiography.

Mehmet Kanbay, Dimitrie Siriopol, Elif Ozdogan, Baris Afsar, Lale A Ertuglu, Mihaela Grigore, Alan A Sag, Masanari Kuwabara, Miguel A Lanaspa, Alberto Ortiz and 2 more

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Article in International urology and nephrology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 35% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
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  3. Predictive ability of serum osmolarity for contrast-induced nephropathy after elective percutaneous coronary intervention: Are we having a new target?The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2025
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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

12 authors at 7 institutions in 5 countries.

Mehmet KanbayDivision of Nephrology, Department of Medicine, Koc University School of Medicine, 34010, Istanbul, Turkey. drkanbay@yahoo.com.ORCID http://orcid.org/0000-0002-1297-0675
Dimitrie SiriopolNephrology Clinic, Dialysis and Renal Transplant Center, 'C.I. PARHON' University Hospital, and 'Grigore T. Popa' University of Medicine, Iasi, Romania.
Elif OzdoganDepartment of Medicine, Koc University School of Medicine, Istanbul, Turkey.
Baris AfsarDivision of Nephrology, Department of Internal Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey.
Lale A ErtugluDepartment of Medicine, Koc University School of Medicine, Istanbul, Turkey.
Mihaela GrigoreDepartment of Obstetrics and Gynecology, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania.
Alan A SagDivision of Vascular and Interventional Radiology, Department of Radiology, Duke University Medical Center, Durham, USA.
Masanari KuwabaraDepartment of Cardiology, Toranomon Hospital, Tokyo, Japan.
Miguel A LanaspaDialysis Unit, School of Medicine, IIS-Fundacion Jimenez Diaz, Universidad Autónoma de Madrid, Avd. Reyes Católicos 2, 28040, Madrid, Spain.
Alberto OrtizDivision of Renal Diseases and Hypertension, School of Medicine, University of Colorado Denver, Aurora, CO, USA.
Richard J JohnsonDialysis Unit, School of Medicine, IIS-Fundacion Jimenez Diaz, Universidad Autónoma de Madrid, Avd. Reyes Católicos 2, 28040, Madrid, Spain.
Adrian CovicNephrology Clinic, Dialysis and Renal Transplant Center, 'C.I. PARHON' University Hospital, and 'Grigore T. Popa' University of Medicine, Iasi, Romania.
Grigore T. Popa University of Medicine and Pharmacy · ROKoç University · TRUniversidad Autónoma de Madrid · ESDuke Medical Center · USSüleyman Demirel University · TRToranomon Hospital · JPUniversity of Colorado Denver · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesContrast-induced nephropathy (CIN) is a relatively common complication following primary coronary angiography (CAG) or percutaneous coronary intervention (PCI), especially in at-risk patients. The goal of this study is to evaluate the role of pre-procedural serum osmolarity as a risk factor for CIN in patients undergoing elective CAG for stable coronary artery disease (CAD). MATERIALS AND

methodsA total of 356 stable CAD patients scheduled to undergo CAG or PCI were included in this two-center study. Serum osmolarity was calculated on admission. CIN was defined according to the KDIGO criteria.

resultsThere were 45 (12.6%) patients who developed CIN 48-72 h after CAG or PCI. CIN patients had a higher prevalence of diabetes (51.1% in those with CIN vs 24.4% in those without CIN, p < 0.001), higher serum glucose (129 mg/dL in those with CIN vs 108 mg/dL in those without CIN, p < 0.001), blood urea nitrogen (22.4 mg/dL in those with CIN vs 19.0 mg/dL in those without CIN, p = 0.01) and serum osmolarity (294.2 mOsm in those with CIN vs 290.1 mOsm in those without CIN, p < 0.001) levels, had received a higher dose of contrast (250 mL in those with CIN vs 200 mL in those without CIN, p = 0.03) but had lower hemoglobin (12.9 g/dL in those with CIN vs 13.6 g/dL in those without CIN, p = 0.04) level. In multivariate analysis, serum osmolarity [odds ratio (OR) 1.11; 95% confidence interval (CI) 1.04-1.18 for each mOsm/L increase; p = 0.001], diabetes (OR 2.43, 95% CI 1.26-4.71; p = 0.01), C-reactive protein (OR 1.04, 95% CI 1.01-1.08 for each mg/dL increase; p = 0.02) and contrast volume (OR 34.66, 95% CI 1.25-962.22 for each L increase; p = 0.04) remained as independent predictors of CIN. Serum sodium, glucose and blood urea nitrogen contributed to the excess serum osmolarity of CIN patients.

conclusionSerum osmolarity is a cheap and widely available marker that can reliably predict CIN after CAG or PCI. Future research should focus on determining a clinically optimal cutoff for serum osmolarity that would warrant preventive interventions. Furthermore, later research may investigate the role of serum osmolarity not only as a risk factor but also as a pathogenetic mechanism underlying CIN.

Indexed as

Kidney DiseasesOsmolar ConcentrationContrast MediaCoronary AngiographyCoronary Artery DiseaseFemaleHematologic TestsHumansMaleMiddle AgedPercutaneous Coronary InterventionPrognosisRisk AssessmentRisk FactorsContrast MediaAcute kidney injuryContrast nephropathyCoronary angiographyOsmolarity

Identifiers

PMID32008199
OpenAlexW3003780643

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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.