Evidence map›Paper›PMID 36967386›Full record

ArticleBMC nephrology2023

A low BUN/creatinine ratio predicts histologically confirmed acute interstitial nephritis.

López Giacoman Salvador, González Fuentes Carolina, Robles Dávila Jesús, Soto Abraham María Virgilia, Román Acosta Susana, Chávez Íñiguez Jonathan, Salas Pacheco José Luis, Ronco Claudio

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In one paragraph

Article in BMC nephrology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.8field-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

10 citing papers in PubMed, 12 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 5 institutions in 2 countries.

López Giacoman SalvadorDivision of Nephrology, Department of Medicine. Hospital General ISSSTE Zacatecas. Zacatecas, México. Adolfo Lopez Mateos Blvd Without Number, Zacatecas, Mexico. shava32@hotmail.com.
González Fuentes CarolinaDepartment of Medicine. Hospital General de Zacatecas, Division of Nephrology, Zacatecas, México.
Robles Dávila JesúsDepartment of Medicine. Hospital General de Zacatecas, Division of Nephrology, Zacatecas, México.
Soto Abraham María VirgiliaDepartment of Nephropathology, Instituto Nacional de Cardiología Ignacio Chávez. , Mexico City, México.
Román Acosta SusanaDepartment of Medicine. Hospital General de Zacatecas, Division of Nephrology, Zacatecas, México.
Chávez Íñiguez JonathanDepartment of Nephrology. Hospital Civil de Guadalajara, Fray Antonio Alcalde, Jalisco, México.
Salas Pacheco José LuisDepartment of Cardiology, Centenario Hospital Miguel Hidalgo, Aguascalientes, México.
Ronco ClaudioDepartment of Nephrology, Dialysis and Kidney Transplant, International Renal Research Institute, San Bortolo Hospital, Vicenza, Italy.
Universidad Autónoma de Zacatecas "Francisco García Salinas" · MXHospital Civil de Guadalajara · MXInstitute for Social Security and Services for State Workers · MXInstituto Nacional de Cardiología · MXInternational Renal Research Institute of Vicenza · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn hospitalized patients with acute renal injury (AKI), acute tubulointerstitial nephritis (AIN) constitutes one of the leading etiologies. The objective of this study was to identify clinical and biochemical variables in patients with AKI associated with kidney biopsy-confirmed AIN.

methodsFor our prospective study, we recruited hospitalized patients aged 18 years and older who were diagnosed with AKI based on biochemical criteria. Prior to enrollment, each patient was assessed with a complete metabolic panel and a kidney biopsy.

resultsThe study consisted of 42 patients (with a mean age of 45 years) and equal numbers of male and female patients. Diabetes and hypertension were the main comorbidities. Nineteen patients had histological findings consistent with AIN. There was a correlation between histology and the BUN/creatinine ratio (BCR) (r = -0.57, p = 0.001). The optimal Youden point for classifying AIN via a receiver operating characteristic (ROC) curve analysis was a BCR ≤ 12 (AUC = 0.73, p = 0.024). Additionally, in diagnosing AIN, BCR had a sensitivity of 76%, a specificity of 81%, a positive predictive value of 81%, a negative predictive value of 76%, and OR of 14 (95% CI = 2.6 to 75.7, p = 0.021). In the multivariable analysis, BCR was the sole variable associated with AIN.

conclusionA BCR ≤ 12 identifies AIN in patients with AKI. This study is the first to prospectively assess the relationship between renal biopsy results and BCR.

Indexed as

Acute Kidney InjuryNephritis, InterstitialBlood Urea NitrogenCreatinineFemaleHumansMaleMiddle AgedProspective StudiesCreatinineAcute interstitial nephritisAcute kidney injuryBUNCreatinine

Identifiers

PMID36967386
PMCPMC10041724
OpenAlexW4360976181

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Textfull text, public
LicenceCC BY
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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.