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附属病院 第二内科 |
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Wakaki T, Takgagi Y, Ono Y, Kato R, Abe K , Watanabe H.
IJC Heart and Vasculature 56 2025年04月 [査読有り]
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Wakaki T.
IJC Heart and Vasculature ( IJC Heart and Vasculature ) 56 2025年02月
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Coconut Atrium Causing Restrictive Physiology in the Right Ventricle
Wakaki T.
Internal Medicine ( Internal Medicine ) 63 ( 16 ) 2289 - 2292 2024年
<p>We herein report a 61-year-old woman with a history of mitral valve replacement for rheumatic fever who presented with crural edema and ascites. Computed tomography showed massive left atrial (LA) calcification involving the interatrial septum, termed "coconut atrium." Catheterization revealed not only pulmonary artery hypertension but also a large V-wave in the pulmonary artery wedge pressure waveform and a dip-and-plateau pattern of right ventricular pressure. Three-dimensional transthoracic echocardiography confirmed the early attainment of peak LA volume and a decreased LA expansion index. Stiff LA syndrome due to coconut LA results in the development of restrictive right ventricular physiology. </p>