Evidence map›Paper›PMID 32940886›Full record

ArticleForensic science, medicine, and pathology2021

Greenish-blue discoloration of the brain and heart after treatment with methylene blue.

Carlos Durão, Frederico Pedrosa, Ricardo Jorge Dinis-Oliveira

Abstract readCase Reports
PubMed Publisher
In one paragraph

Article in Forensic science, medicine, and pathology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.8field-weighted citation impact, top 24% 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

1 citing paper in PubMed, 11 citations in OpenAlex.

  1. Review
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

3 authors at 2 institutions in 1 country.

Carlos DurãoPortuguese National Institute of Legal Medicine and Forensic Sciences, Lisbon, Portugal.
Frederico PedrosaPortuguese National Institute of Legal Medicine and Forensic Sciences, Lisbon, Portugal.
Ricardo Jorge Dinis-OliveiraDepartment of Sciences, IINFACTS - Institute of Research and Advanced Training in Health Sciences and Technologies, University Institute of Health Sciences (IUCS), CESPU, CRL, 4585-116, Gandra, Portugal. ricardinis@sapo.pt.ORCID https://orcid.org/0000-0001-7430-6297
National Legal Medicine Institute · PTUniversidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Greenish-blue discoloration of the brain and heart was observed during the autopsy of a 63-year-old woman who had been treated with methylene blue for septic shock following a traffic accident. This "pistachio" or "avatar" discoloration occurs when the colorless metabolite leucomethylene blue is oxidized to methylene blue upon exposure to atmospheric oxygen. Other clinically documented adverse effects of methylene blue include greenish-blue urine and bluish discoloration of the skin and mucosa. In medicine, methylene blue is an inhibitor of nitric oxide synthase and guanylate cyclase with different clinical applications, namely, rapid reversal of circulatory shock that is refractory to fluid administration, inotropic agents, and vasoconstrictors. Postmortem differential diagnosis with putrefaction and hydrogen sulfide poisoning should be made, and forensic pathologists should be aware of methylene blue-related greenish-blue discoloration to avoid unnecessary workup and investigations.

Indexed as

Accidents, TrafficBrainEnzyme InhibitorsFemaleHeartHumansMethylene BlueMiddle AgedMyocardiumShock, SepticEnzyme InhibitorsMethylene BlueBrainForensic autopsyGreenish-blue discolorationHeartMethylene blue

Identifiers

PMID32940886
OpenAlexW3087477953

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.