Tricuspid aortic stenosis with systolic dysfunction in a 14-year-old boy: Critical stenosis, noncompaction or secondary fibroelastosis?
Bibliographic record
Abstract
A bicuspid aortic valve is the most common cause of isolated valvular aortic stenosis in the pediatric age group; another cause is annular hypoplasia, with the tricuspid valve being the least commonly involved.In aortic stenosis, causes of systolic dysfunction are critical stenosis, secondary fibroelastosis and noncompaction.Critical stenosis is diagnosed in the usual fashion.Secondary fibroelastosis is characterized by endocardial thickening, systolic dysfunction and distinctive bright echoes originating from the endocardium.Noncompaction is a congenital cardiomyopathy due to embryonic arrest of the normal development of the myocardium, leading to persistence of fetal myocardium in postnatal life.Although described in infants with aortic stenosis or atresia, the presence of noncompaction beyond infancy associated with aortic valve disease is exceedingly rare.The echocardiographic appearance of the ventricular myocardium in noncompaction is the distinctive presence of deep intramyocardial recesses.A case of left ventricular noncompaction in association with a tricuspid aortic valve with severe aortic stenosis with systolic dysfunction in a 14-year-old boy is reported.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.006 | 0.004 |
| 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".