A case of cardiac tamponade with a “small” pericardial effusion and superior vena cava syndrome
Bibliographic record
Abstract
In this article, we report a case of a previously healthy 11-year-old male who presented to our university hospital with a mediastinal mass, a left and right pleural effusion, and a small pericardial effusion of 5 mm, detected on computed tomography scan and echocardiography. On assessment, he had all the clinical features of superior vena cava syndrome and tamponade, including muffled heart sounds, tachycardia, and pulsus paradoxus. The patient developed increasing respiratory distress requiring tracheal intubation and mechanical ventilation, and despite drainage of his larger pleural effusion, continued to experience symptoms of respiratory distress. Finally, the small pericardial effusion was confirmed on echocardiography and drained after a clinical diagnosis of cardiac tamponade, leading to dramatic improvement in the patient's cardiovascular status. Curiously, on pericardiocentesis, much less fluid was obtained than expected for his presenting symptoms and clinical course.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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".