Abstract
The arterial switch operation has become the treatment of choice for neonates with transposition of the great arteries.1–4 Today, the fate of coronary artery anastomoses is one of the major concerns in these children. Previous studies have shown that, while rare, coronary artery obstructions are detected by using selective coronary angiography.5–9 In addition, severe coronary artery lesions such as main left stem occlusion can be observed in asymptomatic patients without electrocardiographic and echocardiographic changes suggestive of myocardial ischemia.5,6 Decision making in these children or infants is difficult. Theoretically, myocardial revascularization should be warranted in patients with coronary artery obstructions with myocardial ischemia. Single-photon emission computed tomography (SPECT) has been used to investigate myocardial perfusion after the arterial switch operation.10–12 The etiology and clinical significance of these findings, however, remained unclear because of lack of comparison with coronary anatomy. Our aim was to compare coronary artery angiography and myocardial SPECT in selective patients after the arterial switch operation.
Published Version
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