Follow-up study on improvement of vascular patency rate of vein bypass graft after coronary artery bypass grafting with medical chemical external stent
Bibliographic record
Abstract
Objective To evaluate the efficacy and clinical significance of medical chemical glue as an external stent in improving the fluency rate of venous bypass graft after coronary artery bypass grafting. Methods Randomly selected 200 patients from April 2010 to December 2016 included who were underwent coronary artery bypass grafting in Beijing Anzhen Hospital. All patients had different degrees of angina, and coronary angiography showed multi-branches artery lesion. They were randomly divided into two groups, 100 in each group. Spray gel group: coronary artery bypass grafting simultaneously spraying medical chemical glue on the surface of the bridge vessel. Unsprayed gel group: simple coronary artery bypass grafting. All 200 patients were followed up in June 2018. The follow-up content mainly included: recent recurrence of angina pectoris, recent echocardiography and electrocardiogram report, coronary CTA or coronary angiography results, and current living conditions. The data obtained were collectively summarized and compared. Results The follow-up rate was 96% in the sprayed group, and 92% in the unsprayed group. Compared with the unsprayed group , the incidence of chest pain and angina pectoris was significantly lower in the sprayed group(23.96% vs. 40.22%, P<0.05), the venous occlusion rate of the vein bypass graft in the sprayed group was significantly lower(29.17% vs. 55.43%, P<0.01), the probability of death due to cardiac causes in the sprayed group was significant decrease(1.04% vs. 6.52%, P<0.05), the number of patients with the main adverse cardiac and cerebral events(MACCE) in the sprayed group was significantly lower(9.38% vs. 21.74%, P<0.01), all with statistically significant differences. The number of patients with heart failure and recurrent myocardial infarction was lower in the sprayed group, but there were no statistically significant differences. Conclusion Medical chemical glue as an external stent does play a role in improving the venous patency rate after coronary artery bypass grafting, and it is reliable for the prevention and treatment of vein bypass vascular stenosis after coronary artery bypass grafting. Key words: Medical chemical glue; External stent; Vein bypass graft; Restenosis; Coronary artery bypass grafting
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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 | 0.001 |
| 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) | 0.001 | 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".