Evidence map›Paper›PMID 17082495›Full record

ArticleAmerican journal of respiratory and critical care medicine2007

Higher urine nitric oxide is associated with improved outcomes in patients with acute lung injury.

Dana E McClintock, Lorraine B Ware, Mark D Eisner, Nancy Wickersham, B Taylor Thompson, Michael A Matthay, National Heart, Lung, and Blood Institute ARDS Network

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in American journal of respiratory and critical care medicine, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
6.3field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 68 citations in OpenAlex.

  1. Pooled it
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  17. Biomarkers in acute lung injury.Translational research : the journal of laboratory and clinical medicine · 2012
    Review
  18. Article
  19. Review
  20. NOS2 regulation of LPS-induced airway inflammation via S-nitrosylation of NF-{kappa}B p65.American journal of physiology. Lung cellular and molecular physiology · 2011
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Dana E McClintockCardiovascular Research Institute and Division of Occupational and Environmental Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, San Francisco, California, USA. dana.mcclintock@ucsf.edu
Lorraine B Ware
Mark D Eisner
Nancy Wickersham
B Taylor Thompson
Michael A Matthay
National Heart, Lung, and Blood Institute ARDS Network
Harvard University · US

Funding

Therapy for Clinical Acute Lung Injury with APCP50HL074005 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PITTET, JEAN-FRANCOIS · 2003 to 2007
$9.6M
Resolution of Clinical Lung InjuryR37HL051856 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MATTHAY, MICHAEL A. · 2006 to 2015
$3.9M
RESOLUTION OF CLINICAL LUNG INJURYR01HL051856 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI MATTHAY, MICHAEL A. · 1996 to 2005
$1.7M
Alveolar Epithelium in Acute Lung InjuryK08HL070521 · NHLBI · VANDERBILT UNIVERSITY · PI WARE, LORRAINE B · 2001 to 2005
$609k
NHLBI NIH HHS HL51856NHLBI NIH HHS HL70521NHLBI NIH HHS HL74005NHLBI NIH HHS HL81332
6 · The paper itself

Abstract

rationaleNitrogen oxide (NO) species are markers for oxidative stress that may be pathogenic in acute lung injury (ALI).

objectivesWe tested two hypotheses in patients with ALI: (1) higher levels of urine NO would be associated with worse clinical outcomes, and (2) ventilation with lower VT would reduce urine NO as a result of less stretch injury.

methodsUrine NO levels were measured by chemiluminescence in 566 patients enrolled in the National Heart Lung and Blood Institute Acute Respiratory Distress Syndrome Network trial of 6 ml/kg versus 12 ml/kg VT ventilation. The data were expressed corrected and uncorrected for urine creatinine (Cr).

resultsHigher baseline levels of urine NO to Cr were associated with lower mortality (odds ratio, 0.43 per log(10) increase in the ratio), more ventilator-free days (mean increase, 1.9 d), and more organ-failure-free days (mean increase, 2.3 d) on multivariate analysis (p < 0.05 for all analyses). Similar results were obtained using urine NO alone. NO to Cr levels were higher on Day 3 in the 6 ml/kg than in the 12 ml/kg VT group (p = 0.04).

conclusionsContrary to our hypothesis, higher urine NO was associated with improved outcomes in ALI at baseline and after treatment with the 6 ml/kg VT strategy. Higher endogenous NO may reflect less severe lung injury and better preservation of the pulmonary and systemic endothelium or may serve a protective function in patients with ALI.

Indexed as

AdultAgedBiomarkersCreatinineDisease SusceptibilityFemaleHumansMaleMiddle AgedMultivariate AnalysisNitric OxideOutcome Assessment, Health CareOxidative StressPrognosisRespiratory Distress SyndromeSeverity of Illness IndexBiomarkersCreatinineNitric Oxide

Identifiers

PMID17082495
PMCPMC1899263
OpenAlexW2045240349

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.