A case of a woman with prosthetic mechanical heart valve replacement who suffered from a stuck valve during administration of heparin calcium self-injection at home

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  • TABATA Tsuyoshi
    Department of Clinical Physiology, Toho University Medical Center Sakura Hospital
  • SUGIYAMA Megumi
    Department of Clinical Physiology, Toho University Medical Center Sakura Hospital
  • TANJI Naoaki
    Department of Clinical Physiology, Toho University Medical Center Sakura Hospital
  • ITOU Yuya
    Department of Cardiovascular Surgery, Toho University Medical Center Sakura Hospital
  • SAITOU Aya
    Department of Cardiovascular Surgery, Toho University Medical Center Sakura Hospital
  • MOTOMURA Noboru
    Department of Cardiovascular Surgery, Toho University Medical Center Sakura Hospital
  • SHIMIZU Kazuhiro
    Department of Cardiovascular Center, Toho University Medical Center Sakura Hospital
  • TAKADA Nobuo
    Department of Clinical Physiology, Toho University Medical Center Sakura Hospital

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Other Title
  • ヘパリン在宅自己注射管理中にstuck valveをきたした機械弁置換術後患者の1例

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Description

It is said that pregnancy in a woman with a mechanical prosthetic heart valve increases the risk of thromboembolic complications. Therefore, more thorough anticoagulation therapies are needed. Usually, warfarin is used to prevent the development of thromboembolism after mechanical prosthetic heart replacement, but it also causes fetal abnormalities if taken in early pregnancy. On the other hand, heparin therapy has less risk of teratogenicity than warfarin, but increases the risk of thromboembolic complications in pregnancy. We herein present a case of a pregnant woman with a stuck mechanical mitral valve. Before she was pregnant, her anticoagulation therapy was switched from warfarin to heparin calcium self-injection at home. Her mechanical heart valve, however, was found to be stuck 5 months after the change in therapies.

Journal

  • Choonpa Igaku

    Choonpa Igaku 45 (3), 317-321, 2018

    The Japan Society of Ultrasonics in Medicine

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