ReviewObesity surgery2018
Lack of Diagnosis of Pneumoperitoneum in Perforated Duodenal Ulcer After RYGB: a Short Case Series and Review of the Literature.
Review in Obesity surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.
What it found
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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.
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.
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Who cites it
6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.
- Excluded-stomach Perforation after Roux-en-Y and One-anastomosis Gastric Bypass: A Systematic Review with Video-illustrated Case Report.Obesity surgery · 2026Pooled it
- Effect of Helicobacter pylori infection on metabolic and bariatric surgical complications: a systematic review and meta-analysis.Updates in surgery · 2025Pooled it
- Duodenal perforation in the excluded segment: twenty-five years post-Roux-en-Y gastric bypass surgery: a case report.Journal of surgical case reports · 2025Article
- Perforated Duodenal Ulcer 24 Years After Roux-en-Y Gastric Bypass: A Rare Presentation With Pneumoperitoneum.Cureus · 2025Article
- Thromboembolism and Fluid Collections Years Following Gastric Bypass: the Relevance of the Remnant.Obesity surgery · 2021Article
- Ulcer Disease in the Excluded Segments after Roux-en-Y Gastric Bypass: a Current Review of the Literature.Obesity surgery · 2021Review
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Perforated duodenal ulcer following RYGB is an unusual clinical situation that may be a diagnostic challenge. Only 23 cases have previously been reported. We present five cases. The hallmark of visceral perforation, namely pneumoperitoneum, was not seen in three of the four cases that underwent cross sectional imaging. This is perhaps due to the altered anatomy of the RYGB that excludes air from the duodenum. Our cases had more free fluid than expected. The bariatric surgeon should not wait for free intraperitoneal air to suspect duodenal perforation after RYGB.
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Registered trials
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.