Coronary Artery Bypass Grafting in High-Risk Patients: On-Pump Beating-Heart CABG

Cardiology and Cardiovascular Medicine Coronary Artery Bypass Surgery - New Insights [Working Title](2024)

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摘要
The tailored surgical approach in high-risk patients undergoing coronary artery bypass graft (CABG) still remains debated. Each classic operative technique has strengths and limitations: on-pump CABG entails the use of cardiopulmonary bypass and cardioplegic arrest, while off-pump “beating heart” CABG is technically challenging and might pose problems in case of preoperative hemodynamic impairment or recent myocardial infarction. The hybrid approach of on-pump beating-heart CABG (OPBHC) has been proposed over the years as an acceptable trade-off in cases of severe complications caused by cardioplegic arrest or manipulation of the heart. This chapter intends to summarize the available literature about OPBHC, considering both original contributions and secondary research papers, trying to define operative indications and future perspectives. OPBHC, preventing hemodynamic deterioration while sustaining adequate end-organ perfusion, has been gradually recognized as an effective technique for performing surgical revascularization in high-risk patients, such as those presenting with acute coronary syndrome, cardiogenic shock, or severe left ventricular dysfunction. In selected cases, OPBHC reduces in-hospital mortality and decreases the risk of perioperative complications such as myocardial ischemia or stroke and should be considered a valid alternative to conventional off-pump and on-pump CABG techniques. OPBHC should be in the armamentarium of the next-generation cardiac surgeon.
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