Third-time coronary artery bypass grafting: midterm results

Area of Science:

• Cardiology
• Cardiac Surgery

Background:

• Limited data exist on outcomes for patients undergoing repeat myocardial revascularization.
• Coronary artery bypass grafting (CABG) is a common procedure, but outcomes after multiple reoperations are less understood.

Purpose of the Study:

• To evaluate the safety and efficacy of a third myocardial revascularization procedure.
• To assess the short-term and long-term outcomes in patients undergoing their third CABG.

Main Methods:

• Retrospective review of 13 consecutive patients undergoing their third CABG for unstable angina.
• Analysis of perioperative data, including graft number, surgical approach, and complications.
• Follow-up assessment of long-term survival and symptom status.

Main Results:

• Hospital mortality was 7.7% (1/13), with the single death attributed to incomplete revascularization.
• Postoperative complications included intra-aortic balloon pump support in 3 patients and prolonged ventilation in 2.
• At a mean follow-up of 44 months, 12 survivors showed significant symptomatic improvement, with 9 experiencing no or mild angina.

Conclusions:

• Third myocardial revascularization is associated with low mortality and morbidity.
• The procedure offers the potential for long-lasting symptomatic improvement in carefully selected patients.
• Further research is warranted to optimize patient selection and surgical techniques for repeat CABG.