CORONARY ANGIOPLASTY VERSUS BYPASS-SURGERY IN PATIENTS GREATER-THAN-70 YEARS OLD MATCHED FOR VENTRICULAR-FUNCTION

Objectives. This study compared the relative risks and benefits of coronary angioplasty and coronary artery bypass graft surgery in patients >70 years old. Background. Few objective, comparative data exist to guide the clinician in the decision to use bypass surgery or angioplasty in elderly patients. Methods. The study was a case control, retrospective analysis of 195 consecutive patients who underwent bypass surgery in 1987 and 1988 and were compared with a concurrent cohort of 195 coronary angioplasty treated patients. The groups were matched for left ventricular function, age and gender mix. Results. The in hospital morbidity and mortality rates were significantly lower in the coronary angioplasty-treated patients. Mean postprocedural hospital stay was 4.8 and 14.3 days for angioplasty and surgical group patients, respectively (p < 0.001). In-hospital death occurred in 2% of angioplasty-treated patients compared with 9% of surgically treated patients (p = 0.007). Serious in-hospital stroke occurred in no patient in the angioplasty group and in 5% of patients in the surgical group (p < 0.0001). Q wave infarction occurred in 1% of angioplasty-treated patients and 6% of bypass-treated patients (p = 0.01). The 5-year actuarial survival rate was similar in the two groups: 63% in the angioplasty group, 65% in the bypass group (p = NS). However, surgical group patients experienced less recurrent angina, required fewer repeat revascularization procedures and had fewer Q wave infarctions during follow-up compared with angioplasty group patients. Conclusions. When performed in patients >70 years old, angioplasty and coronary bypass surgery result in similar longterm survival rates but otherwise distinctly different clinical courses.