[The results of coronary artery bypass grafting by using of surgical microscope]

Area of Science:

• Cardiovascular Surgery
• Microsurgery
• Cardiology

Background:

• Coronary artery bypass grafting (CABG) is a standard treatment for severe coronary artery disease.
• Microsurgical techniques and operating microscopes offer enhanced visualization and precision during complex surgical procedures.
• The application of microsurgical CABG in patients with specific coronary artery conditions requires further evaluation.

Purpose of the Study:

• To evaluate the experience and outcomes of coronary artery bypass grafting (CABG) utilizing microsurgical techniques and an operating microscope.
• To assess the feasibility and safety of this approach in a cohort of patients with coronary artery disease.

Main Methods:

• A retrospective analysis of 100 patients who underwent on-pump myocardial revascularization using microsurgical techniques between April 2017 and December 2018.
• Patients had a mean age of 59.7 years, with a high prevalence of triple-vessel disease (83%) and left main coronary artery stenosis (34%).
• Microsurgical technique with an operating microscope was employed for all distal anastomoses.

Main Results:

• A total of 360 distal anastomoses were successfully created in 100 patients.
• The mean revascularization index was 3.6, with an average cardiopulmonary bypass (CPB) time of 104 minutes and aortic cross-clamping time of 72 minutes.
• No in-hospital mortality, resternotomy for bleeding, or infectious complications were observed. One patient (1%) experienced intraoperative myocardial infarction.

Conclusions:

• Coronary artery bypass grafting (CABG) using microsurgical techniques and an operating microscope is a viable option.
• This technique may be particularly beneficial for patients with multi-vessel coronary lesions and small-diameter coronary arteries.
• The study demonstrates the safety and efficacy of microsurgical CABG with excellent early outcomes.