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Serial coronary angioplasty for atherosclerosis following heart transplantation
Insights
Percutaneous transluminal coronary angioplasty successfully treated coronary artery disease in a heart transplant recipient. This minimally invasive procedure offered sustained improvement for graft vasculopathy, demonstrating a viable treatment option.
Area of Science:
- Cardiology
- Transplantation Medicine
Background:
- End-stage ischemic cardiomyopathy necessitates orthotopic heart transplantation.
- Coronary artery disease (allograft vasculopathy) is a significant long-term complication after heart transplantation.
Observation:
- A 51-year-old male heart transplant recipient developed severe coronary artery disease (90-95% stenosis) in the allografted heart 46 months post-transplant.
- Initial percutaneous transluminal coronary angioplasty (PTCA) of the left anterior descending artery lesion resulted in significant stenosis reduction.
- Follow-up angiography revealed sustained improvement and new lesions, necessitating further PTCA procedures.
Findings:
- Successful PTCA of proximal and mid-coronary artery lesions in a heart transplant recipient.
- Demonstrated sustained angiographic improvement at treated sites following PTCA.
- This case is the first reported instance of coronary angioplasty in a heart transplant patient.
Implications:
- PTCA is a feasible and effective non-operative treatment for significant coronary artery disease in heart transplant recipients.
- Minimally invasive revascularization can achieve sustained palliation of allograft vasculopathy.
- Highlights the potential of interventional cardiology in managing post-transplant cardiac complications.
Abstract:
A 51-year-old man underwent orthotopic heart transplantation for end-stage ischemic cardiomyopathy. Forty-six months after the operation significant coronary artery disease was demonstrated in the allografted heart, with severe (90% to 95%) proximal stenosis of the left anterior descending artery as well as diffuse distal and smaller branch lesions. Percutaneous transluminal coronary angioplasty of the proximal left anterior descending artery lesion was successfully performed, reducing the stenosis to a 20% to 30% narrowing. Sixteen months later, repeated angiography showed sustained improvement of the proximal left anterior descending artery lesion and development of new significant lesions in the mid-left anterior descending and left circumflex coronary arteries. Coronary angioplasty of the mid-left anterior descending and proximal circumflex artery lesions was successfully performed and an angiogram four months later showed continued angiographic improvement at each of the distal sites. This case represents the first reported coronary artery angioplasty in a heart transplant recipient. It demonstrates the successful application of a non-operative myocardial revascularization procedure using percutaneous transluminal coronary angioplasty to achieve sustained palliation of significant coronary artery disease following heart transplantation.