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Ann Thorac Surg 1996;61:1389-1393
© 1996 The Society of Thoracic Surgeons

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Original Articles: Cardiovascular

Surgical Treatment of Systemic Atheroembolism From the Thoracic Aorta

Divisions of Cardiothoracic Surgery, Cardiology, and Neurology, New England Medical Center, Boston, Massachusetts

Accepted for publication January 19, 1996.

Background. Surgical procedures performed exclusively for atheroembolic events arising from the thoracic aorta rarely have been reported. Presented here are 2 patients who underwent successful operation for these problems.

Methods. The clinical presentation, diagnostic evaluation, and surgical approach to 2 patients with different embolic sources in the thoracic aorta are presented. One patient had experienced three strokes and was noted by multiplane transesophageal echocardiography to have protruding atheromas with ulcerations in the transverse arch and origin of the brachiocephalic vessels. The transverse arch was replaced using hypothermic circulatory arrest with individual reimplantation of the brachiocephalic vessels. The second patient presented with ``blue toe'' syndrome from mobile atheromas in the mid-descending thoracic aorta defined by transesophageal echocardiography. A localized debridement was performed using simple aortic cross-clamping.

Results. Both patients had uneventful postoperative courses and had no further atheroembolic events.

Conclusions. When standard diagnostic modalities do not delineate an embolic source for either stroke or peripheral embolization, transesophageal echocardiography is recommended as an excellent means of identifying atheromas in the thoracic aorta that could be the source for emboli. Once these lesions are identified, a surgical procedure should be performed to prevent further embolization.

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