Evidence map›Paper›PMID 21334433›Full record

Trial reportFree radical biology & medicine2011

Postoperative acute kidney injury is associated with hemoglobinemia and an enhanced oxidative stress response.

Frederic T Billings, Stephen K Ball, L Jackson Roberts, Mias Pretorius

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Free radical biology & medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01366976 (Inhibition of Lipid Peroxidation During Cardiopulmonary Bypass), which is not on this map. Cited by 96 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed, 3 pooled it
4.1field-weighted citation impact, top 6% 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.

NCT01366976 nacompletednot on this map

Inhibition of Lipid Peroxidation During Cardiopulmonary Bypass

TypeinterventionalSponsorVanderbilt UniversityRan2011 to 2013Enrolled67ConditionsCardiopulmonary Bypass Induced Lipid PeroxidationArmsAcetaminophen
3 · Its place in the literature

Who cites it

96 citing papers in PubMed, 3 syntheses or guidelines pooled it, 161 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Acetaminophen attenuates lipid peroxidation in children undergoing cardiopulmonary bypass.Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies · 2014
    Trial
  8. Trial
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Kidney Injury Following Cardiac Surgery: A Review of Our Current Understanding.American journal of cardiovascular drugs : drugs, devices, and other interventions · 2025
    Review
  17. Article
  18. Review
  19. Article
  20. Article

36 more citing papers are in PubMed but not listed here.

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

4 authors at 1 institution in 1 country.

Frederic T BillingsDivision of Clinical Pharmacology, Department of Anesthesiology, Vanderbilt University Medical School, Nashville, TN 37232, USA.
Stephen K Ball
L Jackson Roberts
Mias Pretorius
Vanderbilt University · US

Funding

VANDERBILT UNIVERSITY CTSA FOR PEDIATRIC RESEARCHUL1RR024975 · NCRR · VANDERBILT UNIVERSITY · PI BERNARD, GORDON RAPHAEL · 2007 to 2011
$45.7M
Structural Identification of Prostaglandin ConjugatesR37GM042056 · NIGMS · VANDERBILT UNIVERSITY · PI ROBERTS, II, L JACKSON · 2001 to 2010
$6.5M
The Vanderbilt Institute for Clinical and Translational Research (VICTR) KL2KL2RR024977 · NCRR · VANDERBILT UNIVERSITY · PI BERNARD, GORDON RAPHAEL · 2007 to 2011
$3.0M
Bradykinin Receptor Antagonism During Cardiopulmonary BypassR01HL085740 · NHLBI · VANDERBILT UNIVERSITY · PI PRETORIUS, MIAS · 2006 to 2010
$2.0M
The Vanderbilt Institute for Clinical and Translational Research (VICTR) TL1TL1RR024978 · NCRR · VANDERBILT UNIVERSITY · PI BERNARD, GORDON RAPHAEL · 2007 to 2011
$1.3M
STRUCTURAL IDENTIFICATION OF PROSTAGLANDIN CONJUGATESR01GM042056 · NIGMS · VANDERBILT UNIVERSITY · PI ROBERTS, L JACKSON · 1989 to 2000
$441k
NCRR NIH HHS KL2 RR024977NCRR NIH HHS TL1 RR024978NCRR NIH HHS UL1 RR024975NHLBI NIH HHS HL085740NHLBI NIH HHS R01 HL085740NIGMS NIH HHS GM42056NIGMS NIH HHS R01 GM042056NIGMS NIH HHS R37 GM042056
6 · The paper itself

Abstract

Acute kidney injury (AKI) frequently afflicts patients undergoing cardiopulmonary bypass and independently predicts death. Both hemoglobinemia and myoglobinemia are independent predictors of postoperative AKI. Release of free hemeproteins into the circulation is known to cause oxidative injury to the kidneys. This study tested the hypothesis that postoperative AKI is associated with both enhanced intraoperative hemeprotein release and increased lipid peroxidation assessed by measuring F₂-isoprostanes and isofurans. In a case-control study nested within an ongoing randomized trial of perioperative statin treatment and AKI, we compared levels of F₂-isoprostanes and isofurans with plasma levels of free hemoglobin and myoglobin in 10 cardiac surgery AKI patients to those of 10 risk-matched controls. Peak plasma free hemoglobin concentrations were significantly higher in AKI subjects (289.0 ± 37.8 versus 104.4 ± 36.5mg/dl, P = 0.01), whereas plasma myoglobin concentrations were similar between groups. The change in plasma F₂-isoprostane and isofuran levels (repeated-measures ANOVA, P = 0.02 and P = 0.001, respectively) as well as the change in urine isofuran levels (P = 0.04) was significantly greater in AKI subjects. In addition, change in peak plasma isofuran levels correlated not only with peak free plasma hemoglobin concentrations (r² = 0.39, P = 0.001) but also with peak change in serum creatinine (r² = 0.20, P = 0.01). Postoperative AKI is associated with both enhanced intraoperative hemeprotein release and enhanced lipid peroxidation. The correlations among hemoglobinemia, lipid peroxidation, and AKI indicate a potential role for hemeprotein-induced oxidative damage in the pathogenesis of postoperative AKI.

Indexed as

Cardiopulmonary BypassPostoperative ComplicationsAcute Kidney InjuryAgedCase-Control StudiesF2-IsoprostanesFemaleFuransHemoglobinsHemoglobinuriaHumansLipid PeroxidationMaleMiddle AgedMyoglobinMyoglobinuriaF2-IsoprostanesFuransHemoglobinsMyoglobin

Identifiers

PMID21334433
PMCPMC3090463
OpenAlexW1986328934

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.