An Analysis of Patient Recovery and Opinions on Driving Post–Transcatheter Aortic Valve Insertion (TAVI): the TAVI-D Study
Bibliographic record
Abstract
Background: Transcatheter aortic valve insertion (TAVI) is heralded for being minimally invasive and requiring shorter recovery, compared to surgical aortic valve replacement. In 2023, the Canadian Cardiovascular Society published guidelines recommending a 1-month driving (noncommercial drivers) restriction for both procedures. A 2024 Canadian physician survey study showed overwhelming support for a shorter TAVI guideline. Methods: An observational prospective assessment of TAVI patient recovery was conducted from June 2024 to January 2025 at the Mazankowski Alberta Heart Institute. Post-TAVI patients were followed clinically and completed a 17-question survey examining symptoms, clinical events, and opinions on driving. Results: Of 111 participants, 96.4% received transfemoral (TF) TAVI. Of patients requiring pacemaker insertion (n = 20), 95% were symptomatic within 1 week of their procedure (1 was symptomatic at 2 weeks). A total of 65% of pacemaker-requiring patients (n = 13 of 20) were implanted during TAVI admission. Readmission for pacemaker insertion (n = 7) occurred in 71.4% (n = 5) within 2 weeks and 28.6% (n = 2) after 3 weeks, a calculated population on-the-road risk of harm of 0.0014%. A total of 90% of pacemaker patients had pre- and/or post-TAVI conduction abnormalities. Two patients developed atrial fibrillation and new right bundle branch block requiring pacemaker insertion at, respectively, 4 and 7 days post-TAVI-a 0.0004% risk. A total of 52.3% expressed that a 1-month driving restriction was "too long." Conclusions: With calculated population on-the-road risks of harm well below the established Canadian Cardiovascular Society threshold of 0.005% (1 of 20,000), we propose shortening noncommercial driving restrictions, to 48 hours for patients with successful uncomplicated transfemoral TAVI without conduction disturbances, and to 2 weeks for those with asymptomatic conduction abnormalities who do not receive a pacemaker.
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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 | 0.000 |
| 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) | 0.000 | 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".