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英文誌(2004-)

Journal of Medical Ultrasonics

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1993 - Vol.20

Vol.20 No.11

Case Report(症例報告)

(0685 - 0690)

拡張期僧帽弁逆流を認めた慢性大動脈弁逆流兼狭窄症の2例

Diastolic Mitral Regurgitation Observed in Cases with Chronic Aortic Stenoregurgitation: Report of Two Cases with Special Reference to Doppler Echocardiographic Findings

広仲 英治1, 中山 淳1, 本郷 実2, 田中 正雄2, 滝沢 洋子1, 浅和 照子1, 東本 恭子1, 藤田 千佳代1, 大久保 信一2, 勝山 努1, 関口 守衛2

Eiji HIRONAKA1, Jun NAKAYAMA1, Minoru HONGO2, Masao TANAKA2, Yoko TAKIZAWA1, Teruko ASAWA1, Yasuko HIGASHIMOTO1, Chikayo FUJITA1, Shinichi OKUBO2, Tsutomu KATSUYAMA1, Morie SEKIGUCHI2

1信州大学医学部附属病院中央検査部, 2信州大学医学部附属病院第1内科

1Central Clinical Laboratorries, Shinshu University Hospital, 2The First Department of Internal Medicine, Shinshu University Hospital

キーワード : Aortic regurgitation, Aortic stenosis, Diastolic mitral regurgitation , Volume loading of left ventricle

Two patients (56 and 72 years old) with chronic aortic stenoregurgitation presented with diastolic mitral regurgitation (MR). Pulsed Doppler echocardiography indicated an abnormal retrograde flow during mid-to late-diastole. Increased peak velocity without shortened deceleration in the rapid filling wave, and decreased peak velocity at atrial contraction in the left ventricular (LV) inflow were also present. Two-dimensional and M-mode echo-cardiographic examinations revealed dilatation, wall thickening and normal contraction of the LV. It is wellknown that diastolic MR often occurs in cases of acute aortic regurgitation (AR), but not in chronic AR. We think it worth reporting that our cases showed diastolic MR in spite of the presence of chronic AR.