PMC4448920_01
Admitting electrocardiogram.
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Admitting electrocardiogram revealed normal sinus rhythm, signs of left ventricle hypertrophy, and ST depression on posterior and lateral leads (Figure 1).
Coronary angiogram and chest computed tomography.. Notes: Coronary angiogram (A) in right anterior oblique showing a complex obstruction of the left main coronary artery. Chest computed tomography (B) showing a long obstruction of the left main coronary artery due to extrinsic compression.. Abbreviation: LAD, left anterior descending.
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An emergent coronary angiogram (Figure 2A) revealed a long, complex lesion on the left main coronary artery (80% lumen obstruction) with tapering contor, suggesting extrinsic compression. Chest computed tomography (Figure 2B) suggested that left main compression was due to aortic root abscess or hematoma.
Late postoperative chest computed tomography revealed a patent left coronary artery after homograft root replacement.
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The left main is widely patent and the saphenous vein graft is occluded on control chest computed tomography (Figure 3).