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The Journal of Thoracic and Cardiovascular Surgery, Vol 98, 908-914, Copyright © 1989 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Cardiac surgery in septuagenarians: is there a difference in mortality and morbidity?

CM Grondin, JC Thornton, JC Engle, H Schreiber and FS Cross
St. Luke's Hospital, Cleveland, OH 44104.

Open heart surgery is being performed with increased frequency in elderly patients. Results vary considerably probably as the profile of the surgical population changes. A comparison was established by means of univariate analysis between two consecutive series of 100 patients undergoing bypass grafting or valvular replacement. Group A patients were 70 years of age or older; group B patients were less than 65 years of age. Various clinical, operative, and postoperative parameters were monitored. A significant difference was found between the two groups. Elderly patients tended to be white, female, with poor left ventricular and renal function, had carotid or peripheral vascular disease, and new onset of symptoms. Fewer patients had single-vessel disease and received internal mammary artery grafts. Operative mortality rate was higher in group A subjects and postoperative neurologic complications were also more frequent in this group. Factors influencing operative mortality were the association between vascular disease, presence of left main coronary artery disease, and urgency of the procedure. The mortality rate was 17.2% in 29 patients with associated vascular disease and 4.8% (3/63) in those without vascular disease (p = 0.048). Operative mortality was 4.1% without left main coronary artery disease, 15% with left main coronary artery disease (p = 0.083), and 4% in 84 patients having elective operations versus 31.2% in patients having 16 emergency procedures (p = 0.001). Short-term follow-up revealed a higher late mortality rate in elderly subjects and suggested an increased incidence of early pulmonary embolus. Nevertheless, elective cardiac surgery may be safely performed in septuagenarians with an expected operative mortality rate under 5%.

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