Quadricuspid semilunar valves: report of two cases.
Bibliographic record
Abstract
Quadricuspid semilunar valves are uncommon congenital anomalies sometimes associated with severe valvular dysfunction. Two cases of isolated quadricuspid semilunar valve were identified. The first, a heavily calcified quadricuspid aortic valve with four equal-sized cusps, was identified in a 56-year-old man at the time of valve replacement surgery for severe aortic stenosis and regurgitation. The second valve was a quadricuspid pulmonary valve with three equal-sized cusps and one smaller cusp, identified incidentally at autopsy in a 79-year-old woman with a ruptured abdominal aortic aneurysm. Review of the literature found that while quadricuspid pulmonary valves are infrequently associated with serious clinical complications, the majority of quadricuspid aortic valves are associated with clinically significant dysfunction, most commonly aortic insufficiency. Further, contrary to previous thinking, the frequency of aortic valvular dysfunction does not appear to be related to valve morphology.
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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 | 0.001 | 0.012 |
| Meta-epidemiology (narrow) | 0.005 | 0.004 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.005 | 0.002 |
| Science and technology studies | 0.004 | 0.004 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.004 | 0.005 |
| Research integrity | 0.010 | 0.006 |
| Insufficient payload (model declined to judge) | 0.005 | 0.004 |
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".