Japanese Journal of Cardiovascular Surgery
Online ISSN : 1883-4108
Print ISSN : 0285-1474
ISSN-L : 0285-1474
Case Reports [Acquired Cardiovascular Surgery]
A Case of Successful Anticoagulant Therapy for Acute Thrombosis Following Mitral Valve Replacement under V-A ECMO
Akitoshi YamadaRyo TohmaMasanobu SatoYoshihisa MorimotoKunio GanTatsuro Asada
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2025 Volume 54 Issue 3 Pages 109-113

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Abstract

A 76-year-old woman, with a history of secundum atrial septal defect (ASD) patch closure 11 years earlier, presented with loss of appetite and dyspnea. She was treated for heart failure due to aortic regurgitation (AR), mitral regurgitation (MR), tricuspid regurgitation (TR), and atrial fibrillation (Af). Upon transfer to our department, she went into shock, leading to the introduction of V-A ECMO and IABP. Emergency surgeries, including aortic valve replacement (AVR), mitral valve replacement (MVR), tricuspid valve annuloplasty (TAP), and left atrial appendage closure, were performed. A second surgery for hemostasis was necessary, and V-A ECMO was removed on the second postoperative day. Transesophageal echocardiography revealed mitral bioprosthetic valve thrombosis. The patient was treated with heparin and warfarin, resulting in improved pressure gradients and removal of IABP by the seventh day. The sternum was closed on the seventeenth day, and she was transferred to the general ward on the thirty-ninth day. This case demonstrates the effective use of anticoagulant therapy for early valve thrombosis after mitral valve replacement under V-A ECMO.

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© 2025 The Japanese Society for Cardiovascular Surgery
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