| Aortic Valve Re-Replacement with Aortic Root Enlargement for Aortic Valvular Stenosis after Aortic Valve Implantation with a Freestyle Stentless Porcine Valve |
(Division of Cardiovascular Surgery, Nagasaki University, Graduate School of Biomedical Sciences, Nagasaki, Japan and Department of Pathology, Nagasaki University Hospital of Medicine and Dentistry*, Nagasaki, Japan)
| Ichiro Matsumaru |
Kiyoyuki Eishi |
Shiro Yamachika |
| Shiro Hazama |
Tsuneo Ariyoshi |
Hideaki Takai |
| Shun Nakaji |
Kuniko Abe* |
Tomayoshi Hayashi* |
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We present a successfully treated case of re-operation for aortic valvular stenosis caused by implantation of a stentless prosthesis using oversizing sub-coronary insertion in a young woman. The 17-year-old Japanese woman received aortic valve replacement (AVR) with a 21mm Freestyle stentless porcine valve (Medtronic Inc.), using the oversizing modified sub-coronary insertion because of infectious endocarditis 12 years previously at another hospital. Just after the operation, she suffered severe heart failure. At 16 years old, since a cardiac murmur and dyspnea on effort appeared, and she presented severe heart failure due to significant aortic valvular stenosis with a mean aortic valve gradient 115mmHg, we performed aortic valve re-replacement (ATS AP 18mm) with an aortic root enlargement procedure. Intraoperative findings suggested that the oversizing technique was related to aortic valvular stenosis. The postoperative course has been uneventful.
Jpn.J. Cardiovasc. Surg. 33: 425-428 (2004) |
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