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Hemolytic Anemia Associated with a Teflon Felt Strip on a Proximal Anastomotic Site for Aortic Replacement in a Patient with Aortic Dissection
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（Department of Cardiovascular Surgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Department of Cardiovascular Surgery, Toride Medical Association Hospital*, Toride, Japan, and Department of Cardiovascular Surgery, Tsukuba Medical Center Hospital**, Tsukaba, Japan）
| Chiho Tokunaga |
Yoshiharu Enomoto |
Shinya Kanemoto |
| Fujio Sato |
Shonosuke Matsushita |
Yuji Hiramatsu |
| Yutaka Watanabe* |
Tomoaki Jikuya** |
Yuzuru Sakakibara |
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A 61-year-old man was referred to our hospital for treatment of hemolytic anemia after ascending aortic replacement aortic dissection. Cine mode magnetic resonance imaging（MRI）showed stenosis at the proximal anastomostic site of a Teflon strip. We diagnosed hemolytic anemia induced by collision of red blood cells on the inverted felt strip. Conservative therapy with Sarpogrelate and β-blockers was effective to treat his hemolytic anemia. However, 7 years later he was re-admitted because of infective endocarditis at the aortic valve, and underwent aortic root replacement. Intraoperative findings showed a stiff and inverted Teflon felt strip causing stenosis of the proximal anastomosis. Hemolytic anemia should be considered a rare complication of using a Teflon felt strip to reinforce anastomosis for acute aortic dissection.
Jpn. J. Cardiovasc. Surg. 40:181-183（2011）
Keywords：acute aortic dissection, Teflon felt strip, hemolytic anemia, Salpogrelate
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