Progression of Low-pressure to Acute Classic Cardiac Tamponade—A Diagnostic Dilemma in the Setting of Spontaneous Left Ventricular Rupture
Bibliographic record
Abstract
Cardiac tamponade (CT) is a pathophysiologic continuum where hemodynamic embarrassment occurs as a result of progressive, decreased venous return that impairs diastolic ventricular filling, which in turn, when uncorrected, severely compromises cardiac output. While CT is classically associated with high intrapericardial pressures due to rapidly accumulating large pericardial effusions, low-pressure CT is a recognized entity in which a comparatively low intrapericardial pressure could result in cardiac chamber compression and subsequent cardiovascular collapse. In this article, we highlight a previously unreported scenario of rapidly re-accumulating, acute CT in the setting of left ventricular rupture in a patient who had presumably presented with low-pressure CT due to hemoperiardium.
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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 | 0.002 | 0.015 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.001 |
| Science and technology studies | 0.002 | 0.003 |
| Scholarly communication | 0.002 | 0.004 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.007 | 0.005 |
| 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".