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Complete myocardial revascularization using only pedicled arterial conduits in Kawasaki disease
Insights
This case study shows that arterial grafts effectively revascularized a teenager with Kawasaki disease and severe coronary artery occlusion. The surgical approach led to significant symptom improvement and restored heart function.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Vascular Surgery
Background:
- Kawasaki disease can lead to severe coronary artery abnormalities, including stenosis and aneurysms, causing significant myocardial ischemia.
- Aneurysmal coronary artery disease in pediatric patients presents complex revascularization challenges.
Observation:
- A 16-year-old male with Kawasaki disease presented with progressive angina and exercise intolerance due to left main coronary artery stenosis and multiple coronary artery aneurysms with occlusions.
- Coronary angiography revealed significant left main stenosis, a calcified aneurysm with occlusion of the proximal LAD, and a right coronary artery aneurysm with occlusion.
Findings:
- Successful aortocoronary bypass surgery was performed using arterial grafts: left internal mammary artery to the obtuse marginal branch, right internal mammary artery to the distal LAD, and right gastroepiploic artery to the posterior descending artery.
- Postoperative angiography confirmed graft patency, and the patient experienced a remarkable improvement in functional capacity, transitioning from NYHA class III to class I.
Implications:
- Complete myocardial revascularization using arterial conduits is a safe and effective strategy for managing complex coronary artery disease in pediatric patients with Kawasaki disease.
- This approach offers a promising solution for improving long-term outcomes and quality of life in young patients with severe sequelae of Kawasaki disease.
Abstract:
A 16-year-old boy with Kawasaki disease suffered from progressive angina and exercise intolerance for 1 year. Coronary angiography showed 60% stenosis of the left main coronary artery, a calcified aneurysm with total occlusion at the proximal left anterior descending artery (LAD), and another aneurysm with total occlusion at the middle portion of the right coronary artery. Aortocoronary bypass was done with the left internal mammary artery (IMA) anastomosed to the first obtuse marginal branch, the right IMA to the distal LAD, and the right gastroepiploic artery to the posterior descending artery. Graft patency was documented by follow-up coronary angiography 1 month after surgery. During follow-up, his rapid improvement led to an upgrade from New York Heart Association functional class III to class I. The results of the present case suggest that complete myocardial revascularization using arterial conduits in patients with Kawasaki disease with coronary artery occlusion is safe and effective.