Bilateral internal mammary artery grafting

Area of Science:

• Cardiovascular Surgery
• Cardiac Surgery
• Thoracic Surgery

Background:

• The left internal mammary artery shows superiority over saphenous vein grafts for myocardial revascularization.
• Bilateral internal mammary artery (BIMA) grafting is considered for improved long-term outcomes.

Purpose of the Study:

• To evaluate the efficacy and safety of BIMA grafting in myocardial revascularization.
• To address the limitations and optimize the use of BIMA, particularly in diabetic patients.

Main Methods:

• Skeletonization of the internal mammary artery.
• Improved glucose control in diabetic patients.
• Utilizing Y or T configurations for double mammary artery grafts.
• Targeting the RIMA to specific coronary artery regions, such as the lateral wall.

Main Results:

• BIMA grafting demonstrates superiority over single internal mammary artery grafting in terms of survival and quality of life.
• Skeletonization and better glucose control significantly reduce deep sternal wound complications.
• RIMA grafting to the lateral wall and Y/T configurations improve graft utilization and efficiency.
• These benefits extend to diabetic patients, enhancing their survival and quality of life.

Conclusions:

• Bilateral internal mammary artery grafting is a superior surgical option for myocardial revascularization, offering improved long-term survival and quality of life.
• Addressing technical challenges and patient-specific factors, such as diabetes, optimizes BIMA's benefits.
• BIMA should be strongly considered for patients undergoing myocardial revascularization.