Antiplatelet therapy and coronary artery bypass graft surgery: perioperative safety and efficacy
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: Antiplatelet therapy is critical in the management of coronary artery disease. For patients undergoing coronary artery bypass graft surgery (CABG), controversy remains regarding the safety of preoperative antiplatelet therapy and the optimal postoperative antiplatelet regimen to maintain graft patency and reduce ischemic complications. OBJECTIVE: The goal of this systematic review is to evaluate the risks and benefits of preoperative aspirin and clopidogrel therapy, to identify the optimal timing and dose of aspirin following CABG, and to assess the role of postoperative clopidogrel therapy. METHODS: A systematic review was performed to retrieve relevant articles from the Medline database published between 1978 and 2008. RESULTS: With respect to aspirin, the published data suggest that it should be held for 7 - 10 days preoperatively in patients undergoing elective CABG. However, in the current era of routine antifibrinolytic therapy and the high prevalence of patients with extensive atherosclerotic disease, this practice has been put into question. Clopidogrel should be held for at least 5 days before CABG to avoid perioperative bleeding complications. Following surgery, extensive evidence supports the use of aspirin, in doses of 100 - 325 mg daily, to be administered in 48 h postoperatively and continued indefinitely. Less is known regarding the use of clopidogrel following CABG, although it is now recommended as postoperative antiplatelet therapy in patients with recent acute coronary syndromes. CONCLUSION: Despite > 30 years of experience with antiplatelet agents during CABG, questions remain regarding their perioperative safety and efficacy. The results of continuing randomized controlled trials should further clarify the role of perioperative aspirin and clopidogrel therapy and help redefine the modern antiplatelet management of coronary artery bypass patients.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.001 |
| 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