Extrathoracic subclavian internal thoracic artery bypass grafting

Area of Science:

• Cardiovascular Surgery
• Vascular Surgery
• Cardiac Surgery

Background:

• Coronary artery bypass grafting (CABG) frequently utilizes the left internal thoracic artery (LITA) to revascularize the anterior descending coronary artery.
• Stenosis at the origin of the LITA can compromise graft patency and necessitate intervention.
• Reoperation for LITA stenosis presents surgical challenges and potential risks.

Observation:

• Interval development of significant stenosis at the LITA origin is a recognized complication after CABG.
• This stenosis can lead to graft failure and recurrent ischemia.
• Surgical options for managing LITA stenosis include revision or bypass.

Findings:

• An extrathoracic approach to bypass the proximal LITA segment is presented as a viable treatment option.
• This technique allows for direct revascularization of the LITA distal to the stenosis.
• The extrathoracic bypass facilitates a quick recovery, short hospital stay, and early return to normal activities for patients.

Implications:

• This extrathoracic bypass technique provides an effective alternative for managing LITA stenosis.
• It offers a less invasive option compared to re-sternotomy for reoperation.
• Successful application of this method can improve long-term outcomes for patients with compromised LITA grafts.