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Ann Thorac Surg 1995;60:60-65
© 1995 The Society of Thoracic Surgeons

Coronary Artery Bypass Grafting in Patients After Failure of Intracoronary Stenting

Joseph B. Whitehead Department of Surgery, Emory University School of Medicine, Atlanta, Georgia

Background. Intracoronary stents are being used to treat acute and threatened closure after percutaneous transluminal coronary angioplasty and to prevent restenosis.

Methods. The outcomes of 68 patients having coronary artery bypass grafting after stent placement were reviewed. The mean age was 60.5 ± 9.7 years, and 71% were male. Thirty-seven percent had hypertension, 13% had diabetes, 62% had class III or IV angina, 60% had multivessel disease, and 40% had sustained a prior myocardial infarction. Fifty-three patients underwent emergency operation, 22 with hemodynamic collapse immediately after percutaneous transluminal coronary angioplasty, and 7 others required urgent revascularization within 24 hours of angioplasty. Seventeen underwent coronary artery bypass grafting for acute closure of the stented vessel several days after the angioplasty procedure.

Results. There was no correlation between urgency of the procedure, previous infarction, or previous coronary artery bypass grafting with successful procedure. The in-hospital mortality was 4.4%, 21% had a Q-wave myocardial infarction, and 1.5% sustained a stroke. Ejection fraction was the only correlate of long-term mortality.

Conclusions. Coronary artery injury for which stents are placed for acute or threatened occlusion or to prevent restenosis but then fail, thus necessitating coronary artery bypass grafting, can be treated successfully. Although the rate of Q-wave myocardial infarction is substantial and related to the initial ischemic insult, the long-term survival and event rates are excellent with prompt surgical revascularization.

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Discussion
Ann. Thorac. Surg. 1995 60: 65-66. [Extract] [Full Text]

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