Hemolytic Anemia Associated with a Teflon Felt Strip on a Proximal Anastomotic Site for Aortic Replacement in a Patient with Aortic Dissection

(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
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