Atrial fibrillation after closure of patent foramen ovale in the <scp>REDUCE</scp> clinical study
Bibliographic record
Abstract
OBJECTIVES: To describe the occurrence of postprocedural atrial fibrillation (AF) among patients with cryptogenic stroke undergoing patent foramen ovale (PFO) closure in the REDUCE clinical study and analyze for potential risk factors for the development of postprocedural AF. BACKGROUND: AF is an adverse event that might potentially counterbalance the stroke prevention benefit from PFO closure. Data on AF after transcatheter PFO closure are sparse. METHODS: We evaluated data from patients having PFO closure (Gore HELEX or Gore Cardioform Septal Occluder) in the REDUCE clinical trial (n = 408) in at post hoc explorative analysis. Median follow-up was 5.0 years. RESULTS: AF occurred in 30 patients (7.4%) after PFO closure with a total of 34 AF events. Most were reported as non-serious (68%), detected within 45 days post-procedure (79%), and resolved within 2 weeks of onset (63%). One subject with AF had recurrent stroke. Postprocedural AF occurred more frequently among subjects with higher age and large device sizes. Male sex was the only independent predictor of postprocedural AF. We found no association between the type of occluder (HELEX or Gore Cardioform Septal Occluder) or PFO anatomical characteristics and post-procedural AF. CONCLUSION: In the REDUCE clinical study, postprocedural atrial fibrillation was mostly early onset, transient and with no later recurrence. Postprocedural AF occurred more frequently among patients with higher age and larger devices. Male sex was the only independent predictor of postprocedural AF.
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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.003 |
| Bibliometrics | 0.000 | 0.001 |
| 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".