Gastric Bezoar After Vagotomy and Billroth I Resection Presenting With Gastric Outlet Obstruction
Bibliographic record
Abstract
Bezoars are collections of undigested materials that can accumulate in any part of the gastrointestinal (GI) tract with the stomach being the most frequent location. They could occur as a complication of gastric surgery, which creates a low acid environment, decreased peristalsis, and abnormal pyloric function. Vagotomy and Billroth resections are culprit surgeries even decades after the procedure. The clinical presentation varies from asymptomatic, a vague feeling of epigastric discomfort and bloating to gastric ulcerations from pressure necrosis and subsequent GI bleeding, or gastric outlet obstruction. Endoscopy is not only the diagnostic test of choice but also has the advantage of offering therapeutic interventions like fragmentation or dissolution. When conservative treatments and endoscopic approaches fail, surgical extraction is recommended. We describe a patient with a gastric bezoar 25 years after vagotomy and Billroth I in which the diagnosis was delayed due to atypical presentation. J Med Cases. 2016;7(1):1-4 doi: http://dx.doi.org/10.14740/jmc2310w
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".