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Japanese

Mid-ventricular Hypertrophic Obstructive Cardiomyopathy in a Patient Whose Hemodynamics Were Exacerbated by Forward Shift of the Posterior Leaflet Caused by Mitral Annular Calcification Masashi Komeda 1 , Masaru Sawazaki 2 , Shiro Tomari 3 , Yoshihito Suenaga 3 1Cardiovascular Center, Fukuda General Hospital Keyword: hypertrophic obstructive cardiomyopathy (HOCM) , mid-ventricular HOCM , mitral annular calcification (MAC) , Morrow’s operation pp.110-114
Published Date 2024/2/1
DOI https://doi.org/10.15106/j_kyobu77_110
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A 82-year-old woman came to our hospital because of orthopnea and cardiac cachexia. Echocardiography revealed a pressure gradient of 50 mmHg at the left ventricular outflow tract and that of 78 mmHg at the mid-ventricle. Systolic anterior motion of the mitral leaflet caused by mitral annular calcification and severe mitral regurgitation (MR) were observed. On the basis of the patient’s age and poor general conditions, we resected abnormal myocardium on the septum from the outflow tract down to the apex via aortic valve and we left the mitral annular calcification. The pressure gradient in the left ventricle, systolic anterior motion and mitral regurgitation were relieved, and her postoperative course was uneventful. Two years after the surgery, she remains in New York Heart Association (NYHA) classⅠand is well.


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電子版ISSN 2432-9436 印刷版ISSN 0021-5252 南江堂

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