Acute bilateral ureteric obstruction after Deflux injection: a case report
Bibliographic record
Abstract
Vesicoureteral reflux (VUR) is a prevalent cause of recurrent urinary tract infections and renal scarring in pediatric patients, managed with conservative measures or surgical intervention. Endoscopic sub-ureteral bulking agent injection provides a minimally invasive option. We present a 7-year-old boy with severe bilateral VUR who developed acute bilateral ureteral obstruction following dextranomer/hyaluronic acid (Deflux) injection. Despite an unremarkable early postoperative course, he developed severe abdominal pain, vomiting, anuria, elevated creatinine, and worsening hydronephrosis. Emergency cystoscopy with bilateral double-J stent placement relieved the obstruction. Significant inflammatory masses at the uretero-vesical junction markedly improved following stent removal. The patient remained asymptomatic without hydronephrosis after 5 years. This case highlights the uncommon but significant risk of ureteral obstruction following endoscopic bulking agent injection and emphasizes the need for careful post-procedural monitoring.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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".