Good outcome and valve function despite medtronic‐corevalve underexpansion
Bibliographic record
Abstract
An 80-year old nun with severe calcific aortic stenosis and a bicuspid aortic valve was referred for transcatheter aortic valve implantation. She was declined for conventional surgery on the basis of poor left ventricular function, frailty, and a logistic EuroSCORE of 29.66. A 29-mm Medtronic-Corevalve bioprosthesis was implanted by transfemoral route. The inflow portion of the stent frame was grossly underexpanded. However, aortic valve area at 1.3 cm(2) was more than satisfactory for a body surface area of 1.29 m(2) (indexed area 1.0 cm(2)/m(2), peak gradient 23, and mean 16 mmHg). There was an early sustained improvement in New York Heart Association (NYHA) status, and there was no change in valvular function at 2 year follow-up. This case highlights that gross underexpansion of the Medtronic-Corevalve stent frame is compatible with good bioprosthetic function and excellent symptomatic recovery.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.004 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".