A Case of Stentless Aortic Valve Reoperation for Severe Aortic Regurgitation due to Dilation of the Sinotubular Junction

(Department of Cardiovascular Surgery, Kameda Medical Center, Kamogawa, Japan)

Kazuhiro Hisamoto Masaaki Toyama Masanori Katoh
Mitsuhisa Kotani Yuji Kato Yukiharu Sugimura
A 72-year-old woman underwent a double aortic valve replacement with the Freestyle aortic bioprosthesis and subcoronary implantation with the Mosaic mitral bioprosthesis because of rheumatic multivalvular heart disease in 2000. During her annual follow-up, her Sinotubular junction was observed to have gradually increased in diameter on echocardiography and computed tomography. Therefore, 9 years after surgery we performed a reoperation for severe aortic regurgitation. Intraoperatively, the stentless bioprosthesis was found to be structurally intact. We believe that the dilation of the Sinotubular junction associated with a stentless bioprosthesis in the subcoronary position have caused her severe aortic regurgitation.
  Jpn. J. Cardiovasc. Surg. 41:25-28(2012)

Keywords:stentless bioprosthesis, reoperation, STJ