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A Case of Stentless Aortic Valve Reoperation for Severe Aortic Regurgitation due to Dilation of the Sinotubular Junction
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（Department of Cardiovascular Surgery, Kameda Medical Center, Kamogawa, Japan）
| Kazuhiro Hisamoto |
Masaaki Toyama |
Masanori Katoh |
| Mitsuhisa Kotani |
Yuji Kato |
Yukiharu Sugimura |
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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
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