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Ann Thorac Surg 1992;53:269-273
© 1992 The Society of Thoracic Surgeons

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Articles

Changing profiles of failed coronary angioplasty patients: Impact on surgical results

Departments of Cardiothoracic Surgery and Cardiology, Boston University Medical Center and the University Hospital, Boston, Massachusetts, USA

Accepted for publication August 9, 1991.

^_* Address reprint requests to Dr Lazar, Department of Cardiothoracic Surgery, The University Hospital, Suite B-404, 88 East Newton St, Boston, MA 02118.

As more high-risk patients undergo percutaneous transluminal coronary angioplasty (PTCA), the changing profiles of PTCA patients who may require emergent coronary artery bypass grafting may alter operative morbidity and mortality. This study compared profiles of recent patients undergoing emergent coronary artery bypass grafting after a failed PTCA with earlier patients to determine their impact on operative results. From 1980 to 1988, 53 patients underwent emergent coronary artery bypass grafting after a failed PTCA at the Boston University Medical Center. These patients were divided into two groups based on the year of the PTCA: group I, 1980 to 1985 (n = 18); and group II, 1986 to 1988 (n = 35). Group II patients tended to be older (age 65 years, 47% group II versus 11% group I), were more likely to have unstable angina before PTCA (74% versus 33%), and had lower ejection fractions (0.53 ± 0.02 versus 0.63 ± 0.05) and more vessels with 50% or greater stenosis (2.1 ± 0.2 versus 1.6 ± 0.2). Nevertheless, there was no significant difference in the incidence of perioperative myocardial infarcts using enzyme and electrocardiographic criteria (37% in group II versus 39% in group I), 30-day operative mortality (11% in group II versus 11% in group I), or major postoperative complications (14% in group II versus 22% in group I). We conclude that despite the changing profiles of patients undergoing PTCA, which include older patients with more extensive coronary artery disease and lower ejection fractions, operative results after emergent coronary artery bypass grafting for failed PTCAs remain unchanged.

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