REDUCTION OF SYSTEMIC AND CARDIAC ADHESION MOLECULE EXPRESSION AFTER OFF-PUMP VERSUS CONVENTIONAL CORONARY ARTERY BYPASS GRAFTING
Why this work is in the frame
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Bibliographic record
Abstract
Cardiopulmonary bypass (CPB) and operative trauma are associated with increased expression of proinflammatory mediators. We determined the relative contribution of CPB on activation of cytokines and adhesion molecules in patients undergoing coronary revascularization by comparing them with patients receiving off-pump coronary artery bypass grafting (OPCAB). Twenty-six patients were assigned to either the OPCAB procedure using a suction device and regular sternotomy (n = 13), or were treated conventionally using extracorporeal circulation, blood cardioplegia, and hypothermic arrest (29 degrees C-31 degrees C; n = 13). Systemic levels of TNF-alpha and the soluble adhesion molecules P-selectin and intracellular adhesion molecule 1 (ICAM-1) were assayed. Immunohistochemistry was used to account for cardiac-specific expression of adhesion molecules in interventricular endomyocardial sections. Both systemic and endomyocardial expression of adhesion molecules were lower in the OPCAB group. Coronary revascularization with CPB resulted in a significant higher expression of TNF-alpha, which was associated with P-selectin and ICAM-1 expression. This was accompanied with higher catecholamine requirement in the CPB group in the early postoperative period. Despite comparable surgical trauma, the OPCAB procedure without the use of CPB and cardioplegic arrest significantly reduces systemic and cardiac adhesion molecule expression and catecholamine requirement. Since the clinical course in the early postoperative period was comparable, larger trials are required to select the appropriate patient who benefits most from one or the other treatment regime.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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 | 0.000 |
| 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 it