title: Acute coronary syndrome caused by left main coronary artery compression between the aortic root and massive dilation of the left atrium.
abstract: Left main compression by pulmonary artery dilation has been reported previously. Percutaneous or surgical interventions are treatment options. We report on a 78-year-old man with exertional chest pain and dyspnea. Coronary angiography revealed significant ostial left main artery stenosis. Intravascular ultrasound showed no atherosclerotic plaque but did reveal a rhythmic external compression between the aortic root and another lucent structure. The patient underwent successful stenting of the lesion. Subsequently, 64-slice multidetector coronary computed tomography found the source of compression to be an enlarged left atrium. The patient remains free of coronary insufficiency after 18 months of follow-up.
authors: Department of Cardiology, Xiamen Heart Center, Xiamen University, Xiamen, People's Republic of China.
authors: Bin
authors: B
authors: Wang
authors: Department of Cardiology, Xiamen Heart Center, Xiamen University, Xiamen, People's Republic of China. Electronic address: wy@medmail.com.cn.
authors: Yan
authors: Y
authors: Wang
mesh_terms: D054058:Acute Coronary Syndrome / Q000175:diagnosis / Q000209:etiology*; D000368:Aged; D001013:Aorta, Thoracic; D002311:Cardiomyopathy, Dilated / Q000150:complications* / Q000175:diagnosis; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000150:complications* / Q000175:diagnosis; D003331:Coronary Vessels / Q000601:surgery*; D004452:Echocardiography; D006325:Heart Atria; D006801:Humans; D008297:Male; D061330:Multidetector Computed Tomography; D009204:Myocardial Revascularization / Q000379:methods; D015607:Stents