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Updated: Mar 30, 2026

Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
[VIABILITY OF MYOCAROIUM AS RISK FACTOR FOR MORTALITY IN EARLY AND LATE PERIOD AFTER BYPASS SURGERY OF CORONARY
Insights
Patients with coronary heart disease and low left ventricular ejection fraction (LVEF) after bypass surgery face higher mortality and complication risks. Identifying preoperative predictors is crucial for managing these high-risk cardiac patients.
Area of Science:
- Cardiology
- Cardiac Surgery
- Clinical Outcomes
Background:
- Coronary heart disease (CHD) patients with reduced left ventricular ejection fraction (LVEF) exhibit increased mortality and complications post-coronary artery bypass grafting (CABG).
- Preserved LVEF in CABG patients is associated with better outcomes compared to those with impaired systolic function.
Purpose of the Study:
- To identify significant preoperative predictors of early mortality in patients undergoing CABG.
- To determine the incidence of early postoperative complications in patients with reduced LVEF after CABG.
- To compare outcomes between patients with preserved and reduced LVEF following CABG.
Main Methods:
- Retrospective analysis of patient data from coronary artery bypass surgery.
- Evaluation of preoperative clinical and echocardiographic parameters.
- Assessment of early postoperative mortality and complication rates.
Main Results:
- Patients with low LVEF demonstrated significantly higher rates of mortality and complications compared to those with preserved LVEF.
- Specific preoperative factors were identified as significant predictors of early mortality.
- The incidence of postoperative complications was notably elevated in the low LVEF group.
Conclusions:
- Reduced LVEF is a critical factor associated with adverse outcomes after CABG.
- Preoperative risk stratification is essential for optimizing management strategies in high-risk cardiac surgery patients.
- Further research should focus on interventions to mitigate risks in patients with impaired LV systolic function undergoing CABG.
Abstract:
In coronary heart disease and low ejection fraction of the left ventricle (LV) in patients after coronary artery bypass surgery tend mortality and complication rate higher than preserved LV systolic function. Significant preoperative predictors of early mortality and remote in these patients, and the incidence of complications in the early postoperative period were reveald.
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