Transcatheter closure of perimembranous ventricular septal defects
Bibliographic record
Abstract
Although effective, transcatheter closure of perimembranous ventricular septal defects (pmVSD) with the Amplatzer Membranous VSD Occluder (AGA Medical Corporation, MN) carries a substantial risk of complete heart block, prompting many to abandon this intervention. A newly designed Amplatzer device for pmVSD was modified, in part, to minimize this risk. After rigorous preclinical testing, we report the first human experience with the Amplatzer Membranous VSD Occluder 2 (AGA Medical Corporation) in two patients (a 5-year old with a 12-mm pmVSD and a 26-year-old male with a 8-mm defect). Both procedures were successful, with no adverse events at 7 and 4 weeks of follow-up, respectively. Herein, we discuss characteristics of the new device, potential advantages compared to the prior version, and main technical aspects related to the procedure.
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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) | 0.000 | 0.000 |
| 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) | 0.001 | 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 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".