Atypical advanced interatrial block due to giant atrial lipoma
Bibliographic record
Abstract
In 2012, a consensus report on interatrial blocks (IAB) was published, which established the electrocardiographic criteria for advanced IAB (A-IAB), consisting of a P-wave duration ≥120 ms plus biphasic ± morphology in the inferior leads (II, III, and aVF).1 The abnormal P-wave morphology seen in A-IAB is due to the complete block of the sinus impulse at the Bachmann region with subsequent retrograde activation of the left atrium (LA). A recent paper has described atypical electrocardiographic findings of A-IAB consisting of either changes in P-wave duration (<120 ms) or P-wave morphology (alterations in the classic biphasic morphology in the inferior leads, but always presenting final negative component in aVF, representative of caudocranial activation of the LA).2 The accurate diagnosis of A-IAB remains imperative given the increased risk of atrial fibrillation and stroke, and the need for monitoring and possible treatment of these conditions.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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".