Visibility of the bleeding point in acute rectal hemorrhagic ulcer using red dichromatic imaging: A case report.

Yuichiro Hirai, Atsuto Kayashima, Yoshihiro Nakazato, Ai Fujimoto

Open access · diamondAbstract readCase Reports

In one paragraph

Article in World journal of gastrointestinal endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

0.1field-weighted citation impact, top 49% 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

0 citing papers in PubMed, 1 citations in OpenAlex.

No citing paper in PubMed yet.

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.

Yuichiro HiraiDepartment of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan.

Atsuto KayashimaDepartment of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan.

Yoshihiro NakazatoDepartment of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan.

Ai FujimotoDepartment of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo 1520021, Japan. aifujimoto0517@gmail.com.

Tokyo Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRed dichromatic imaging (RDI) is a novel image-enhanced endoscopy expected to improve the visibility of the bleeding point. However, it has not been thoroughly investigated. CASE SUMMARY: A 91-year-old man developed a sudden massive hematochezia and underwent emergent colonoscopy. An ulcer with pulsatile bleeding was found on the lower rectum. Due to massive bleeding, the exact location of the bleeding point was not easy to detect with white light imaging (WLI). Upon switching to RDI, the bleeding point appeared in deeper yellow compared to the surrounding blood. Thus, RDI enabled us for easier recognition of the bleeding point, and hemostasis was achieved successfully. Furthermore, we reviewed endoscopic images and evaluated the color difference between the bleeding point and surrounding blood for WLI and RDI. In our case, the color difference of RDI was greater than that of WLI (9. 75

conclusionRDI may improve visualization of the bleeding point by providing better contrast in color difference relative to surrounding blood.

Indexed as

Acute hemorrhagic rectal ulcerCase reportEndoscopic hemostasisGastrointestinal hemorrhageImage-enhanced endoscopyRed dichromatic imaging

Identifiers

PMID34326944

DOI10.4253/wjge.v13.i7.233

PMCPMC8311470

OpenAlexW3179826876

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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.