P5798Prevalence of interatrial block and its association with specific coronary arteries in patients with ST- segment elevated myocardial infarction
Bibliographic record
Abstract
Introduction: Interatrial block (IAB), defined as P wave duration greater than 120 milliseconds (ms), is strongly associated with recurrence of atrial fibrillation (AF) in different clinical scenarios. Ischemia is considered as one of the mechanisms underlying the pathogenesis of IAB by contributing atrial fibrosis. Purpose: The aim of this study is to investigate the correlation between culprit coronary artery lesion with the presence of IAB and newly detected AF at 12 months. Methods: Patients that are presented to our hospital with ST-segment elevated myocardial infarction (STEMI) and received successful primary percutaneous coronary intervention (P-PCI) were prospectively enrolled to the study. Surface electrocardiography (ECG) of all patients were recorded on admission and at 6th hour post P-PCI. Patients were screened for the occurrence of AF at 12 months visit. Results: The present study included 198 patients. IAB was detected in 102 (51.5%) patients on admission. Patients with an obstruction in only right coronary vasculature [63 (61.8%) vs 40 (41.7%); P<0.01] and in more than one coronary artery [56 (54.9%) vs 34 (35.4%); P<0.01] had a greater prevalence of IAB. Presence of IAB was reduced to 47 (23.7%) patients at 6th hour. AF was detected in 17.7% of study patients at 12 months. Presence of both p-IAB [15 (42.9%) vs 23 (14.1%); P<0.01] and a-IAB [7 (20%) vs 2 (1.2%); P<0.01] at 6th hour P-PCI and obstruction in more than one coronary artery [25 (71.4) vs 65 (39.9); P<0.01]. predicted the new onset AF at 12 months.
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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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 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".