Evidence map›Paper›PMID 28551045›Full record

ArticleThe Annals of thoracic surgery2017

Methylene Blue for Vasoplegic Syndrome After Cardiac Operation: Early Administration Improves Survival.

J Hunter Mehaffey, Lily E Johnston, Robert B Hawkins, Eric J Charles, Leora Yarboro, John A Kern, Gorav Ailawadi, Irving L Kron, Ravi K Ghanta

Open access · bronzeAbstract read
In one paragraph

Article in The Annals of thoracic surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 2% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 113 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  4. Review
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  7. Article
  8. Methylene blue in the critical care setting.World journal of critical care medicine · 2025
    Review
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  19. Can Use of Intravenous Methylene Blue Improve the Hemodynamics and Outcome of the Patients with Refractory Septic Shock? An Observational Study.Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2023
    Article
  20. Vasoplegic Syndrome and Anaesthesia: A Narrative Review.Turkish journal of anaesthesiology and reanimation · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

J Hunter MehaffeyDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia. Electronic address: jhm9t@virginia.edu.
Lily E JohnstonDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
Robert B HawkinsDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
Eric J CharlesDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
Leora YarboroDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
John A KernDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
Gorav AilawadiDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
Irving L KronDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
Ravi K GhantaDivision of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
University of Virginia · US

Funding

Cardiovascular Surgery Training ProgramT32HL007849 · NHLBI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI KRON, IRVING L., LAUBACH, VICTOR E · 1998 to 2025
$7.0M
NHLBI NIH HHS T32 HL007849
6 · The paper itself

Abstract

backgroundVasoplegic syndrome, defined by hypotension despite normal or increased cardiac output, is associated with high mortality rate after cardiopulmonary bypass. Methylene blue (MB) is reported to ameliorate vasoplegic syndrome through the nitric oxide pathway. We hypothesized that early administration of MB would improve outcomes in patients with vasoplegic syndrome after cardiopulmonary bypass.

methodsAll patients that underwent cardiopulmonary bypass at our institution (Jan 1, 2011 to Jun 30, 2016) were identified through our Society of Thoracic Surgery database. Pharmacy records identified patients receiving MB within 72 hours of cardiopulmonary bypass. Multivariate logistic regression identified predictors of major adverse events among patients receiving MB.

resultsA total of 118 cardiopulmonary bypass patients (3.3%) received MB for vasoplegic syndrome. These patients had a higher incidence of comorbidities, and these cases were more commonly reoperative (76.1% versus 41.2%, p < 0.0001) and complex (70.3% versus 31.8%, p < 0.0001). The only difference in preoperative medications was that MB patients had a higher rate of amiodarone use (15.3% versus 2.2%, p < 0.0001). MB patients had significantly higher rates of postoperative complications, except atrial fibrillation. Early (operating room, 40.7%) versus late (intensive care unit, 59.3%) administration of MB was associated with significantly reduced operative mortality rate (10.4% versus 28.6%, p = 0.018) and risk-adjusted major adverse events (odd ratio 0.35, p = 0.037).

conclusionsOperative mortality rate is high in patients receiving MB for the treatment of vasoplegia after cardiopulmonary bypass. Early administration of MB improves survival and reduces the risk-adjusted rate of major adverse events in these patients.

Indexed as

Postoperative ComplicationsAgedCardiac Surgical ProceduresEnzyme InhibitorsFemaleHumansMaleMethylene BlueMiddle AgedPostoperative CareRetrospective StudiesRisk FactorsSurvival RateTreatment OutcomeVasoplegiaVirginiaEnzyme InhibitorsMethylene Blue

Identifiers

PMID28551045
PMCPMC5523819
OpenAlexW2620224464

What OpenQuestion holds

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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.