Evidence map›Paper›PMID 22977220›Full record

ArticleClinical journal of the American Society of Nephrology : CJASN2012

Association of postoperative proteinuria with AKI after cardiac surgery among patients at high risk.

Amber O Molnar, Chirag R Parikh, Kyaw Sint, Steven G Coca, Jay Koyner, Uptal D Patel, Isabel Butrymowicz, Michael Shlipak, Amit X Garg

Abstract read
In one paragraph

Article in Clinical journal of the American Society of Nephrology : CJASN, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
–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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Urinary Biomarkers and Kidney Injury in VA NEPHRON-D: Phenotyping Acute Kidney Injury in Clinical Trials.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2024
    Pooled it
  3. Urine Biomarkers and Perioperative Acute Kidney Injury: The Impact of Preoperative Estimated GFR.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2015
    Trial
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Observational
  10. Article
  11. Article
  12. AKI in Hospitalized Patients with COVID-19.Journal of the American Society of Nephrology : JASN · 2021
    Observational
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Observational
  19. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Amber O MolnarDivision of Nephrology, Department of Medicine, University of Western Ontario, London, Ontario, Canada.
Chirag R Parikh
Kyaw Sint
Steven G Coca
Jay Koyner
Uptal D Patel
Isabel Butrymowicz
Michael Shlipak
Amit X Garg

Funding

YALE UNIVERSITY CLINICAL AND TRANSLATIONAL SCIENCE AWARD PROGRAMUL1RR024139 · NCRR · YALE UNIVERSITY · PI SHERWIN, ROBERT S · 2006 to 2011
$56.8M
Novel Biomarkers in Cardiac Surgery to Detect Acute Kidney InjuryR01HL085757 · NHLBI · YALE UNIVERSITY · PI PARIKH, CHIRAG R · 2007 to 2019
$10.3M
The Role of Cystatin C in Acute Kidney InjuryK23DK081616 · NIDDK · UNIVERSITY OF CHICAGO · PI KOYNER, JAY L · 2009 to 2013
$718k
NCRR NIH HHS UL1 RR024139NHLBI NIH HHS R01 HL085757NHLBI NIH HHS R01HL-085757NIDDK NIH HHS K23 DK081616NIDDK NIH HHS L30 DK084760
6 · The paper itself

Abstract

BACKGROUND AND

objectivesPreoperative proteinuria is associated with a higher incidence of postoperative AKI. Whether the same is true for postoperative proteinuria is uncertain. This study tested the hypothesis that increased proteinuria after cardiac surgery is associated with an increased risk for AKI. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: This prospective cohort study included 1198 adults undergoing cardiac surgery at six hospitals between July 2007 and December 2009. Albuminuria, urine albumin-to-creatinine ratio (ACR), and dipstick proteinuria were measured 0-6 hours after surgery. The primary outcome was AKI, defined as a doubling in serum creatinine or receipt of acute dialysis during the hospital stay. Analyses were adjusted for patient characteristics, including preoperative albuminuria.

resultsCompared with the lowest quintile, the highest quintile of albuminuria and highest grouping of dipstick proteinuria were associated with greatest risk for AKI (adjusted relative risks [RRs], 2.97 [95% confidence interval (CI), 1.20-6.91] and 2.46 [95% CI, 1.16-4.97], respectively). Higher ACR was not associated with AKI risk (highest quintile RR, 1.66 [95% CI, 0.68-3.90]). Of the three proteinuria measures, early postoperative albuminuria improved the prediction of AKI to the greatest degree (clinical model area under the curve, 0.75; 0.81 with albuminuria). Similar improvements with albuminuria were seen for net reclassification index (0.55; P<0.001) and integrated discrimination index (0.036; P<0.001).

conclusionsHigher levels of proteinuria after cardiac surgery identify patients at increased risk for AKI during their hospital stay.

Indexed as

Acute Kidney InjuryAdultAgedAlbuminuriaCardiac Surgical ProceduresCohort StudiesCreatinineFemaleHumansMaleMiddle AgedPostoperative ComplicationsProspective StudiesProteinuriaRiskCreatinine

Identifiers

PMID22977220
PMCPMC3488955

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.