The Japanese Journal of Thoracic Surgery Volume 71, Issue 3 (March 2018)

Structural Deterioration of a Bovine Pericardial Valve in a Tricuspid Position 14 Years Postoperatively;Report of a Case Kazunori Ota 1 , Koyu Tanaka 1 , Naoki Asano 1 , Shigeyoshi Gon 1 , Masahito Saito 1 , Kazuho Niimi 1 , Hiromichi Inoue 1 , Motohiko Tamura 1 , Yuji Matsumura 1 , Toshihiro Ohata 2 , Hirotsugu Fukuda 3 , Hiroshi Takano 3 1Department of Thoracic and Cardiovascular Surgery, Dokkyo Medical University Saitama Hospital Keyword: structural valve deterioration , tricuspid valve replacement , bioprosthesis pp.199-203
Published Date 2018/3/1
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Although nonstructural dysfunction of a bioprosthesis caused by pannus formation or native valve attachment has been well described, structural valve deterioration (SVD) caused by calcification or tear of a bioprosthesis, especially a bovine pericardial valve, is very rare in the tricuspid position. We report a case of redo tricuspid valve surgery for SVD 14 years after tricuspid valve replacement (TVR) using a Carpentier-Edwards Perimount (CEP) pericardial valve. A 71-year-old woman was referred to our hospital because of exertional dyspnea and pre-syncope. She had undergone mitral valve replacement with a St. Jude Medical mechanical valve and TVR with a CEP pericardial valve 14 years previously. Transthoracic echocardiography revealed tricuspid valve stenosis with a mean trans-tricuspid valve pressure gradient (TVPG) of 7.3 mmHg. Redo TVR using a CEP Magna Mitral Ease valve was performed under cardiac arrest. Severe calcification was observed on the ventricular side of the leaflets of the explanted valve. The mean TVPG decreased to 3.2 mmHg after surgery, and the patient’s postoperative course was uneventful.

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71巻3号 (2018年3月)
電子版ISSN 2432-9436 印刷版ISSN 0021-5252 南江堂