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 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 | 0.002 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| 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".