Clinical relevance of myocardial bridging severity: single center experience
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
BACKGROUND: Myocardial bridging refers to intramyocardial systolic compression of a segment of an epicardial coronary artery. We aimed to identify the clinical significance of myocardial bridging by assessing the clinical presentation in non-obstructive coronary artery disease among a cohort of consecutive patients presenting for coronary angiography. MATERIALS AND METHODS: A retrospective review of our institution's database between September 2002 and March 2005 was conducted to review coronary angiography reports of 14,416 patients. The study group included 226 patients (prevalence=1.57%) with isolated myocardial bridging and <50% stenosis in the non-bridged arteries. Cases with myocardial bridging were classified according to the percentage of systolic compression of the left anterior descending artery into group I (<50% compression), group II (50-70% compression) and group III (compression >or= 70%). RESULTS: Mean age was 57.6+/-15.5 years; 59% were men. The mean duration of follow-up was 12+/-2 months. The left anterior descending was the most common site of bridging (210, 93%). There was a significant difference between groups I and III with respect to the percentage of patients who presented with non-fatal myocardial infarction (P=0.02). Unstable angina had the highest association with myocardial bridging, but there was no significance among the level of myocardial bridging severity and the clinical presentation of angina. CONCLUSIONS: Myocardial bridging is not a benign variation of coronary anatomy. It is associated with angina and myocardial infarction in patients with >or= 70% systolic compression. The bridged segment may be a cause of enhanced atherosclerotic plaque formation.
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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 | 0.004 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.001 |
| 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 it