Evidence map›Paper›PMID 35764392›Full record

ArticleClinical journal of the American Society of Nephrology : CJASN2022

Urine Output Monitoring for the Diagnosis of Early-Onset Acute Kidney Injury in Very Preterm Infants.

Aurélie De Mul, Paloma Parvex, Alice Héneau, Valérie Biran, Antoine Poncet, Olivier Baud, Marie Saint-Faust, Alexandra Wilhelm-Bals

Open access · greenAbstract read
In one paragraph

Article in Clinical journal of the American Society of Nephrology : CJASN, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
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  5. Neonatal acute kidney injury: where are we now?Pediatric nephrology (Berlin, Germany) · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Aurélie De MulPediatric Nephrology Unit, Geneva University Hospital, Geneva, Switzerland aureliedemul@gmail.com.ORCID 0000-0002-7658-3068
Paloma ParvexPediatric Nephrology Unit, Geneva University Hospital, Geneva, Switzerland.
Alice HéneauNeonatal Intensive Care Unit, Hôpital Robert Debré, Assistance Publique-Hôpitaux de Paris, Université Paris Diderot, Paris, France.
Valérie BiranNeonatal Intensive Care Unit, Hôpital Robert Debré, Assistance Publique-Hôpitaux de Paris, Université Paris Diderot, Paris, France.
Antoine PoncetClinical Epidemiology Division, Geneva University Hospitals, Geneva, Switzerland.
Olivier BaudNeonatal Intensive Care Unit, Geneva University Hospital, Geneva, Switzerland.
Marie Saint-FaustNeonatal Intensive Care Unit, Geneva University Hospital, Geneva, Switzerland.
Alexandra Wilhelm-BalsPediatric Nephrology Unit, Geneva University Hospital, Geneva, Switzerland.
University Hospital of Geneva · CHUniversité Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesThe current threshold used for oliguria in the definition of neonatal AKI has been empirically defined as 1 ml/kg per hour. Urine output criteria are generally poorly documented, resulting in uncertainty in the most accurate threshold to identify AKI in very preterm infants with known tubular immaturity. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We conducted a bicentric study including 473 very preterm infants (24

resultsEarly-onset AKI was developed by 101 of 473 (21%) very preterm infants. AKI was diagnosed on the basis of urine output criteria alone (no rise in creatinine) for 27 of 101 (27%) participants. Early-onset AKI was associated with higher risk of death before discharge (adjusted odds ratio, 3.9; 95% confidence interval, 1.9 to 7.8), and the AKI neonatal KDIGO score showed good discriminative performance for neonatal mortality, with an area under the receiver operating characteristic (ROC) curve of 0.68 (95% confidence interval, 0.61 to 0.75). Modified AKI definitions that included higher urine output thresholds showed significantly improved discriminative performance, with areas under the ROC curve of 0.73 (95% confidence interval, 0.66 to 0.80) for the 1.5-ml/kg per hour threshold and 0.75 (95% confidence interval, 0.68 to 0.81) for the 2-ml/kg per hour threshold.

conclusionsEarly-onset AKI was diagnosed on the basis of urine output exclusively for a quarter of the cases. Furthermore, modified AKI definitions that included higher urine output improved the discriminative performance for predicting mortality.

Indexed as

Acute Kidney InjuryInfant, PrematureCreatinineHumansInfantInfant, NewbornInfant, Very Low Birth WeightOliguriaCreatinineacute kidney injuryearly diagnosisinfantmortalityneonatal KDIGOpretermtubular immaturityurine outputvery preterm

Identifiers

PMID35764392
PMCPMC9269638
OpenAlexW4283709282

What OpenQuestion holds

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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.