Evidence map›Paper›PMID 42637939›Full record

ArticleSurgical endoscopy2026

Real-time endoscopic tissue oxygen saturation imaging of the upper gastrointestinal tract: baseline values and association with gastrojejunal anastomotic ulcer healing.

Luke Leonardo, Trent Walradt, Daniel Szvarca, Cem Simsek, Pichamol Jirapinyo, Ravi Pasam, Christopher C Thompson

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Article in Surgical endoscopy, 2026. 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
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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.

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

7 authors.

Luke LeonardoDivision of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA.
Trent WalradtDivision of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA.
Daniel SzvarcaDivision of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA.
Cem SimsekDivision of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA.
Pichamol JirapinyoDivision of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA.
Ravi PasamDivision of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA.
Christopher C ThompsonDivision of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Boston, MA, 02115, USA. cthompson@hms.harvard.edu.ORCID http://orcid.org/0000-0002-6105-5270

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsGastrojejunal anastomotic (GJA) ulcers are a common complication after Roux-en-Y gastric bypass (RYGB) and may be refractory to medical therapy. Impaired mucosal perfusion is suspected to contribute to non-healing ulcers, but no method exists to directly assess ischemia. We evaluated the feasibility of real-time endoscopic tissue oxygen saturation (StO

methodsIn this prospective study, 51 adults were included: 18 with normal gastrointestinal anatomy, 26 with RYGB anatomy without complications, and a subgroup of 7 RYGB patients with confirmed GJA ulcers. StO

resultsIn normal anatomy, esophageal StO

conclusionEndoscopic StO

Indexed as

Bariatric endoscopyEndoscopic imagingEndoscopic sleeve gastroplasty (ESG)Laparoscopic sleeve gastrectomy (LSG)Mucosal perfusionObesityTissue oxygen saturation (StO2)Weight loss

Identifiers

PMID42637939

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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.