Copyright © 1993 by the European Society of Cardiology.
© 1993 The European Society of Cardiology
Coronary angioplasty in cardiac transplant recipients
Harefield Hospital Harefleld, Middlesex UB9 6JH, U.K.
Received 5 June 1992; accepted 5 June 1992.
Correspondence: Dr J. W. Swan. Wynn Institute, 21, Wellington Road, St John's Wood, London NW8 9SQ, U.K.
Abstract
Accelerated coronary artery disease following cardiac transplantation remains an important obstacle to long-term survival and the correct management strategy remains unclear. This observational, prospective study was designed to examine the feasibility of using percutaneous transluminal coronary angioplasty (PTCA) in the treatment of post-transplant coronary disease.
Thirteen consecutive patients were selected from the total population of 276 transplant recipients who underwent routine coronary angiography between 1987 and 1990. Selection of patients was on angiographic criteria alone and PTCA was performed to all accessible stenoses with more than 80% luminal narrowing. PTCA was performed using standard angioplasty equipment and procedure as considered appropriate for the individual lesion. A successful PTCA was defined as more than 30% reduction in luminal narrowing and a residual narrowing of less than 50%. Restenosis was defined as a loss of 50% or more of the gain achieved at the time of successful PTCA or more than a 30% increase in narrowing at the site of stenosis. A total of 31 lesions were dilated in this group and a successful result was achieved in 29 of these (93%) and in 12 of the 13 patients. The one patient with failed PTCA underwent later successful coronary artery bypass grafting to complete revascularization. Four of the 13 patients have had two angioplasty procedures, two for restenosis and two for disease progression in other sites. One patient died 15 months after the initial PTCA and remaining 12 were asymptomatic with good exercise tolerance and ventricular function at a mean of 19 months (range 1–39 months) following first PTCA.
Thus, PTCA can be considered a feasible form of treatment for significant single and multiple vessel disease in selected cardiac transplant recipients. Further study is required to assess the effect of this early intervention on long-term mortality.
Key Words: Percutaneous transluminal coronary angioplasty • coronary artery disease • orthotopic cardiac transplantation
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