Bibliographic record
Abstract
Gangrene of the bladder is fortunatley now very rare, with better obstetric care and the advent of the antibioic era. It can present fulminatly with bladder rupture, or less commonly with the sequelae of necrotic urothlium and detrusor causing recurrent episiodes of sepsis, urinary retention or catheter blockages. A high level of morbidity and mortality is associated with the condition. Case History We present a case of a 75 year old male with multiple co-morbidities, including diabetes and vascular disease, who presented to the urology team with recurrent episodes of sepsis and frequent blockage of his long term urethral catheter. After months of no catheter problems, he was admitted to intensive care with severe sepsis following a catheter blockage at home. After discharge he suffered multiple further episodes of urinary sepsis and catheter blockages, requiring almost daily catheter changes. After multiple imaging investigations looking for a source of the recurrent severe infections, a cystoscopy under general anaesthtic revealed a large volume of necrotic tissue in his bladder, which, on biopsy, was found to be sloughed urothelium and detrusor muscle consistent with recent gangrene of the bladder. No problems with the ctaheter were reported after the bladder washout and cystoscopic debridement Discussion The diagnosis of bladder gangrene was delayed becuase of the patients insideous presentation. Had the imaging investigations revelaed an associated bladder rupture when he intially presented to ITU , it is likley that the diagnosis and appropriate debridement would have been perfomed sooner. The patient required muliple readmissions with a blocked catheter before the diagnosis was made, but the eventual cystoscopic debridement was successful. Conclusion Clinicians should keep gangrene of the bladder on the list of differential diagnoses for recurrent catheter blockages, particularly if recognised risk factors have been present. These include a history of catheterisation, vascular disease, diabetes, recent critical illness requiring inotropes and urinary tract infections.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".