Modified pericardial closure to protect internal mammary artery grafts in coronary artery bypass

Area of Science:

• Cardiothoracic Surgery
• Vascular Surgery
• Surgical Techniques

Background:

• Redo coronary artery bypass grafting (CABG) procedures are increasing.
• Resternotomy in redo CABG carries a high risk of myocardial and graft injury.
• Traditional midline sternotomy and pericardial closure can lead to internal mammary artery (IMA) graft distortion.

Purpose of the Study:

• To describe a novel technique for pericardial closure and thymus coverage.
• To protect bilateral internal mammary artery grafts during redo sternotomy.

Main Methods:

• A specific technique involving pericardial closure and thymus repositioning is detailed.
• This method aims to create a protective barrier for IMA grafts.

Main Results:

• The described technique offers protection against inadvertent injury to IMA grafts.
• It mitigates the risk of graft distortion associated with resternotomy.

Conclusions:

• This pericardial closure and thymus coverage technique is a valuable method for safeguarding IMA grafts in redo CABG.
• It enhances patient safety during complex reoperative cardiac procedures.