Evidence map›Paper›PMID 24847330›Full record

ArticleCardiorenal medicine2014

Heme Oxygenase-1 and Acute Kidney Injury following Cardiac Surgery.

Frederic T Billings, Frederic T Billings, Chang Yu, John G Byrne, Michael R Petracek, Mias Pretorius

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Cardiorenal medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
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  15. Mechanisms of haemolysis-induced kidney injury.Nature reviews. Nephrology · 2019
    Review
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4 · The record

Corrections and comments

  • Erratum issued
    Billings, Frederic T [corrected to Billings, Frederic T 4th]
5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Frederic T BillingsDepartment of Anesthesiology, Vanderbilt University School of Medicine, Nashville, Tenn., USA.
Frederic T Billings
Chang YuDepartment of Biostatistics, Vanderbilt University School of Medicine, Nashville, Tenn., USA.
John G ByrneDepartment of Cardiac Surgery, Vanderbilt University School of Medicine, Nashville, Tenn., USA.
Michael R PetracekDepartment of Cardiac Surgery, Vanderbilt University School of Medicine, Nashville, Tenn., USA.
Mias PretoriusDepartment of Anesthesiology, Vanderbilt University School of Medicine, Nashville, Tenn., USA ; Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tenn., USA.
Vanderbilt University · US

Funding

VANDERBILT UNIVERSITY CTSA FOR PEDIATRIC RESEARCHUL1RR024975 · NCRR · VANDERBILT UNIVERSITY · PI BERNARD, GORDON RAPHAEL · 2007 to 2011
$45.7M
The Vanderbilt Institute for Clinical and Translational Research (VICTR)UL1TR000445 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BERNARD, GORDON RAPHAEL · 2012 to 2016
$41.4M
THE PHARMACOLOGY OF INHIBITORS OF HEME PROTEIN-CATALYZED LIPID PEROXIDATIONP50GM015431 · NIGMS · VANDERBILT UNIVERSITY · PI MARNETT, LAWRENCE J. · 1985 to 2010
$15.0M
Bradykinin Receptor Antagonism During Cardiopulmonary BypassR01HL085740 · NHLBI · VANDERBILT UNIVERSITY · PI PRETORIUS, MIAS · 2006 to 2010
$2.0M
Mitochondrial dysfunction, oxidative stress, and surgical acute kidney injuryK23GM102676 · NIGMS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BILLINGS, FREDERIC TREMAINE · 2012 to 2016
$808k
NCATS NIH HHS UL1 TR000445NCRR NIH HHS UL1 RR024975NHLBI NIH HHS R01 HL085740NIGMS NIH HHS K23 GM102676NIGMS NIH HHS P50 GM015431
6 · The paper itself

Abstract

backgroundIntraoperative hemolysis and inflammation are associated with acute kidney injury (AKI) following cardiac surgery. Plasma-free hemoglobin induces heme oxygenase-1 (HO-1) expression. HO-1 degrades heme but increases in experimental models of AKI. This study tested the hypothesis that plasma HO-1 concentrations are associated with intraoperative hemolysis and are increased in patients that develop AKI following cardiac surgery.

methodsWe measured plasma HO-1, free hemoglobin, and inflammatory markers in 74 patients undergoing cardiopulmonary bypass (CPB). AKI was defined as an increase in serum creatinine concentration of 50% or 0.3 mg/dl within 72 h of surgery.

resultsTwenty-eight percent of patients developed AKI. HO-1 concentrations increased from 4.2 ± 0.2 ng/ml at baseline to 6.6 ± 0.5 ng/ml on postoperative day (POD) 1 (p < 0.001). POD1 HO-1 concentrations were 3.1 ng/ml higher (95% CI 1.1-5.1) in AKI patients, as was the change in HO-1 from baseline to POD1 (4.4 ± 1.3 ng/ml in AKI patients vs. 1.5 ± 0.3 ng/ml in no-AKI patients, p = 0.006). HO-1 concentrations remained elevated in AKI patients even after controlling for AKI risk factors and preoperative drug therapy. Peak-free hemoglobin concentrations correlated with peak HO-1 concentrations on POD1 in patients that developed AKI (p = 0.02). Duration of CPB and post-CPB IL-6 and IL-10 concentrations were also associated with increased HO-1 on POD1.

conclusionPlasma HO-1 is increased in patients that develop AKI, and CPB duration, hemolysis, and inflammation are associated with increased HO-1 concentrations following cardiac surgery. Strategies that alter hemolysis and HO-1 expression during cardiac surgery may affect risk for AKI.

Indexed as

Acute kidney injuryAngiotensin-converting enzyme inhibitorCardiac surgeryCardiopulmonary bypassHeme oxygenase-1HemoglobinHemolysisInterleukin

Identifiers

PMID24847330
PMCPMC4024967
OpenAlexW2072036005

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.