Coronary artery bypass surgery in the elderly

Area of Science:

• Cardiovascular Surgery
• Geriatric Medicine
• Cardiac Surgery Outcomes

Background:

• Coronary artery bypass grafting (CABG) is a common procedure for coronary artery disease.
• Outcomes in elderly patients (over 65) undergoing CABG require specific evaluation.
• Assessing risk factors and long-term prognosis is crucial for this demographic.

Purpose of the Study:

• To evaluate the outcomes of coronary artery bypass grafting (CABG) in patients over 65 years of age.
• To identify risk factors associated with increased operative mortality in this elderly cohort.
• To determine the clinical improvement and survival rates at one year post-CABG.

Main Methods:

• Retrospective analysis of 115 patients aged over 65 who underwent CABG.
• Comparison of operative mortality with a historical cohort of 1,500 CABG patients.
• Identification of risk factors including New York Heart Association (NYHA) class, ejection fraction, disease extent, and age.

Main Results:

• Operative mortality was 5% in the elderly group, compared to 2.5% overall.
• Increased risk factors identified: NYHA class IV, ejection fraction <35%, >5 grafts, age >75.
• At one year, 81% were clinically improved, and 91% survived.

Conclusions:

• Elderly patients undergoing CABG have a higher operative mortality than the general population.
• Specific factors like NYHA class IV, poor ejection fraction, extensive disease, and advanced age increase risk.
• Selected elderly patients (NYHA II-III, good LV function, ≤4 grafts) have excellent short- and long-term prognoses after CABG.