EP.FRI.988Life threatening recurrent bleeding gastric fundus Dieulafoy lesion: A case report
Bibliographic record
Abstract
Abstract Introduction Dieulafoy lesion is a rare but significant cause of upper gastrointestinal tract (GIT) bleeding. Over 75% of Dieulafoy lesions are located in the stomach and they tend to be responsible for recurrent upper GIT bleeding. Endoscopic therapy is the first line intervention to achieve haemostasis. Patient A 49-year old normally fit man known to have a gastric Dieulafoy lesion since 2008 presented with a history of collapse on the street and significant melaena. He was tachycardic, with a heart rate of 116, and hypotensive, blood pressure 109/68 mmHg on admission. He had significant upper GIT bleeding from the gastric fundus Dieulafoy lesion in April 2008, requiring a massive blood transfusion. At the time, the attempted endoscopic therapy was unsuccessful, resulting in an emergency surgery and under-running of the bleeding vessels. For the recent admission, he underwent an urgent therapeutic oesophagogastroduodenoscopy, with 3 endoscopic clips applied, but this failed to maintain haemostasis. Four units of packed red cell were transfused and he was transferred immediately to the operating theatre. He underwent an emergency laparotomy, adhesiolysis, gastrostomy and wedge resection of the bleeding gastric fundus Dieulafoy lesion using a linear cutter 75mm stapler. He had an uneventful post-operative recovery and was discharged home on day four after surgery. The histology of the wedged gastric specimen confirmed an area of gastric mucosa ulceration with a network of mixed dilated, thin and thick-walled tortuous vessels in the adjacent submucosal layer. The histologic features are consistent with a bleeding gastric Dieulafoy lesion.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.006 | 0.003 |
| Insufficient payload (model declined to judge) | 0.026 | 0.016 |
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 source (direct Gemma or distilled Codex), 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".