MIDCAB: impact of epicardial stabilization upon outcomes

Area of Science:

• Cardiovascular Surgery
• Minimally Invasive Cardiac Surgery
• Coronary Artery Bypass Grafting

Background:

• Minimally invasive direct coronary artery bypass (MIDCAB) has faced criticism regarding anastomotic patency.
• Epicardial mechanical stabilization devices are proposed to improve left internal mammary artery (LIMA) anastomosis patency and patient outcomes.

Purpose of the Study:

• To evaluate the impact of epicardial mechanical stabilization on anastomotic patency and clinical outcomes in MIDCAB procedures.
• To compare outcomes of MIDCAB with and without mechanical stabilization.

Main Methods:

• A total of 39 patients underwent MIDCAB for left anterior descending (LAD) revascularization without cardiopulmonary bypass (CPB).
• Patients were divided into two groups: 11 without stabilization and 28 with mechanical epicardial stabilization.
• Immediate postoperative coronary angiography was performed on 38 patients.

Main Results:

• Anastomotic patency was 60% in the non-stabilization group, improving to 90% after revisions.
• In the stabilization group, anastomotic patency was 97.4% with no intra-operative deaths.
• Mean length of stay (LOS) was 5.4 days without stabilization versus 3.0 days with stabilization.

Conclusions:

• Mechanical epicardial stabilization significantly enhances early patency and clinical outcomes in MIDCAB.
• This technique is particularly beneficial for revascularizing the anterior coronary circulation in patients with previous coronary artery bypass (CAB).
• MIDCAB with mechanical stabilization offers superior results compared to standard redo-CAB procedures.