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Ann Thorac Surg 2007;83:483-489
© 2007 The Society of Thoracic Surgeons
a Division of Cardiothoracic Surgery, College of Physicians and Surgeons, Columbia University–New York Presbyterian Hospital, New York, New York
b Division of Cardiothoracic Surgery, University of Medicine and Dentistry of New Jersey, Newark, New Jersey
Accepted for publication September 14, 2006.
* Address correspondence to Dr Cheema, College of Physicians and Surgeons of Columbia University–New York Presbyterian Hospital, 177 Fort Washington Ave, Milstein Hospital Bldg 7GN-435, New York, NY 10032 (Email: fc2020{at}columbia.edu).
Presented at the Poster Session of the Forty-second Annual Meeting of The Society of Thoracic Surgeons, Chicago, IL, Jan 30–Feb 1, 2006.
BACKGROUND: The incidence of coronary artery bypass graft surgery (CABG) performed in elderly patients has been increasing over recent years. We sought to evaluate clinical outcomes of octogenarians undergoing CABG using an audited state-wide mandatory database.
METHODS: New York State Department of Health’s Cardiac Reporting System was analyzed from 1998 to 2002. In all, 88,154 patients undergoing isolated CABG were identified. Patients were divided into four age groups: less than 50 years (group 1, n = 6,527), 50 to 64 years (group 2, n = 30,088), 65 to 79 years (group 3, n = 43,369), and 80 years and above (group 4, n = 8,170).
RESULTS: Of all patients, 9.3% were octogenarians. In addition to marginally worse coronary artery disease, octogenarians generally manifested a higher incidence of preoperative risk factors such as cerebrovascular disease, peripheral vascular disease, and congestive heart failure compared with younger patients at baseline. Both length of hospital stay and in-hospital mortality rate were significantly higher among octogenarians. The incidence of postoperative complications was higher among octogenarians. Multivariate analysis demonstrated renal failure requiring dialysis (odds ratio [OR] = 4.4), myocardial infarction within 6 hours before surgery (OR = 3.6), chronic obstructive pulmonary disease (OR = 1.7), congestive heart failure at admission (OR = 1.7), emergent operation (OR = 1.6), Canadian Cardiovascular Society functional class IV (OR = 1.5), hypertension (OR = 1.4), and low ejection fraction (OR = 0.98) to be significant independent predictors of in-hospital mortality of octogenarians. Discharge to home rates were significantly lower for octogenarians.
CONCLUSIONS: Although early outcomes in octogenarians are acceptable, these factors alone are not sufficient to reflect overall success of CABG in these patients, given the strikingly lower discharge to home rates. Attention to full functional recovery in octogenarians is essential.
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