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Evaluation of myocardial metabolism and function during beating heart coronary surgery
Insights
Beating heart coronary artery bypass surgery, performed via left anterior small thoracotomy (LAST) or median sternotomy, is popular. Studies reviewed assess its impact on myocardial function, injury, and outcomes, addressing concerns about temporary ischemia during anastomosis.
Area of Science:
- Cardiovascular Surgery
- Cardiac Anesthesia
- Cardiology
Background:
- Coronary artery bypass grafting (CABG) on a beating heart is increasingly adopted worldwide.
- Techniques include left anterior small thoracotomy (LAST) and median sternotomy.
- Concerns persist regarding potential myocardial ischemia during coronary artery manipulation.
Purpose of the Study:
- To review studies evaluating beating heart coronary revascularization.
- To assess the impact on myocardial function and tissue injury.
- To evaluate the clinical outcomes associated with these procedures.
Main Methods:
- Systematic review of studies on beating heart CABG.
- Analysis of data on myocardial function post-revascularization.
- Evaluation of myocardial tissue injury markers.
- Review of clinical outcomes and patient data.
Main Results:
- Beating heart techniques demonstrate feasibility and growing popularity.
- Myocardial function is generally preserved or improved.
- Evidence regarding myocardial tissue injury requires further investigation.
- Clinical outcomes are comparable to conventional methods, with potential benefits.
Conclusions:
- Beating heart coronary revascularization is a viable alternative.
- Further research is needed to fully elucidate myocardial protection strategies.
- Patient selection and surgical technique are crucial for optimal outcomes.
Abstract:
Coronary artery bypass surgery on the beating heart either via a left anterior small thoracotomy (LAST) or a median sternotomy is becoming increasing popular world-wide. Concern still remains about the potential for a temporary regional myocardial ischaemia associated with the stabilisation and occlusion of the coronary during construction of the anastomosis. This review summarises the results of a series of studies intended to evaluate the effect of beating heart coronary revascularization on myocardial function, myocardial tissue injury and clinical outcome.