A Case of Atypical Croup
Bibliographic record
Abstract
Case Presentation A previously healthy eight‐month‐old girl was admitted to the pediatric intensive care unit at Stollery Children′s Hospital (Edmonton, Alberta) following a waxing and waning course of respiratory distress. She had initially presented 11 days earlier to the emergency room with stridor and a brassy cough, and laryngotracheobronchitis was diagnosed. Treatment with racemic adrenaline and one dose of oral dexamethasone was effective and she was discharged after overnight observation. Nasopharyngeal aspirate was negative by direct fluorescent antibody and by viral culture for influenza A and B, parainfluenza and respiratory syncytial virus. Over the next three days, the child had increasing stridor and was admitted and again treated with racemic adrenaline and a four‐day course of oral dexamethasone. She was subsequently discharged. White lesions were noted on the tongue and were treated with topical nystatin. Four days later, the child presented to the emergency room with recurrence of stridor and fever and new onset of drooling. She had a respiratory rate of 44 breaths/min, heart rate of 170 beats/min, blood pressure of 90/58 mmHg, oxygen saturation of 98% and temperature of 39.6°C. She was in moderate respiratory distress, with marked stridor. Examination of the oropharynx revealed ulcerative lesions on the anterior tongue, hard and soft palate, and posterior pharynx. Laboratory studies revealed a white blood cell count of 18.1x109/L (74% neutrophils, 23% lymphocytes and 3% monocytes). Other hematological values were normal. A laryngobronchoscopy was performed and revealed that the mucosa of the laryngopharynx was studded with discrete white lesions on a background of mucosal inflammation with severe reduction of airway calibre requiring intubation (Figure 1). The subglottis and the tracheobronchial tree were severely inflamed but had no discrete lesions.
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.005 | 0.003 |
| Insufficient payload (model declined to judge) | 0.004 | 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".