What does this research mean for the field?

Coronary artery bypass grafting in patients over 65 years of age yields excellent one-year survival and clinical improvement, despite a slightly higher operative mortality compared to the general population, particularly in patients with good left ventricular function and lower NYHA class. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

April 1, 1983

Coronary Artery Bypass Surgery in the Elderly

Structured PICO

What are the outcomes and risk factors for coronary artery bypass grafting in patients over 65 years of age?

Population

115 patients over 65 years of age undergoing coronary artery bypass grafting (CABG) at a single institution.

Intervention

Coronary artery bypass grafting (CABG)

Comparator

1,500 overall persons with CABG in the last five years (for operative mortality comparison)

Outcome

Operative mortality, 1-year survival rate, and clinical improvement at 1 yearhard clinical

CABG in patients over 65 years of age has an acceptable operative mortality and excellent 1-year survival, particularly in those with good left ventricular function and fewer required grafts.

Abstract

One hundred fifteen patients over 65 years of age were operated on at our institution for coronary artery bypass grafting (CABG). The operative mortality was 5% compared with an overall operative mortality of 2.5% in the last five years for 1,500 persons with CABG. Increased risk factors included qualification for New York Heart Association (NYHA) class IV, ejection fraction of less than 35%, diffuse disease requiring more than five grafts, and age over 75 years. At one year after operation, 81% of the patients were clinically improved, and the survival rate was 91%. Patients over 65 years of age in NYHA classes II and III with good left ventricular function requiring four or less bypass grafts appeared to have an excellent prognosis both acutely and during a one-year follow-up period.

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