Total arterial coronary bypass: long-term results

Area of Science:

• Cardiovascular Surgery
• Cardiac Surgery Outcomes
• Arterial vs. Vein Grafts

Background:

• Coronary artery bypass grafting (CABG) is a common treatment for coronary artery disease.
• The choice of conduit (arterial vs. venous) impacts long-term patient outcomes.
• Standard CABG often uses a combination of internal mammary arteries and saphenous veins.

Purpose of the Study:

• To compare the long-term efficacy of all-arterial conduits versus standard grafts in primary elective CABG.
• To evaluate if arterial conduits offer superior outcomes compared to saphenous vein grafts.
• To assess survival and quality of life at 10-20 years post-CABG.

Main Methods:

• Retrospective analysis of three patient groups undergoing primary elective CABG.
• Group A: All arterial grafts.
• Group B: 2+ arterial grafts plus saphenous vein grafts.
• Group C: Standard grafts (left internal mammary artery + saphenous vein grafts).
• Follow-up period: 10-20 years (mean 13.6 years).

Main Results:

• The all-arterial group (A) showed significantly fewer angiograms for symptoms compared to groups B and C.
• Group A experienced fewer reinterventions than groups B and C.
• Fewer cardiac deaths were observed in group A compared to the other groups.
• Group A demonstrated a survival and cardiac quality-of-life advantage.

Conclusions:

• Exclusive use of arterial conduits in CABG is associated with better long-term outcomes.
• Arterial grafts provide a survival and quality-of-life benefit over procedures including saphenous vein grafts.
• The findings support the use of all-arterial bypass grafting for improved patient results.