Expanding Valves, Expanding Options: The Growing Armamentarium for Treatment of the Surgically Repaired Right Ventricular Outflow Tract in Tetralogy of Fallot
Bibliographic record
Abstract
Since the first-in-human transcatheter heart valve implantation in 2000 in the pulmonary position—a prototype of what would eventually become the Melody valve (Medtronic, Minneapolis, MN)1— the field of transcatheter pulmonary valve replacement (TPVR) has come full circle. Balloon-expandable valves have long met a critical need among patients with dysfunctional right ventricle (RV) to pulmonary artery conduits and surgical bioprosthetic valves. With time, new devices, and increasing expertise, selected patients with surgically repaired right ventricular outflow tracts (RVOTs) could be treated with the largest balloon-expandable valves with an upper limit of 29 to 30 mm.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.003 |
| Insufficient payload (model declined to judge) | 0.006 | 0.002 |
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".