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英文誌(2004-)

Journal of Medical Ultrasonics

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1989 - Vol.16

Vol.16 No.05

Original Article(原著)

(0433 - 0437)

軽度の左室拡大を呈する症例の病態,予後に関する研究−早期拡張型心筋症か?−

Clinical Study of Patients with Mildly Dilated Left Ventricle: Early Dilated Cardiomyopathy?

黒住 泰明1, 戸山 祥三1, 横田 慶之2, 福崎 恒2

Hiroaki KUROZUMI1, Shohzoh TOYAMA1, Yoshiyuki YOKOTA2, Hisashi FUKUZAKI2

1昭生病院内科, 2神戸大学医学部第一内科

1Department of Internal Medicine, Shohsei Hospital, 2First Department of Internal Medicine, Kobe University School of Medicine

キーワード : Dilated cardiomyopathy, Echocardiography, Mild dilation, Early stage

Clinical feature and prognosis of the patients with mildly dilated left ventricle (mildly dilated heart disease: MDHD) without apparent causes such as valvular regurgitation or ischemic heart disease were evaluated with echocardiography. Among 24 patients with MDHD, 12 patients had a history of systemic hypertension, 3 patients had a history of tachyarrhythmia of transient or fixed atrial fibrillation, and 3 patients were considered to be a mitral valve prolapse syndrome. Six patients, however, had no such presumed cause. During a follow-up period more than one year, five patients deteriorated their cardiac functions, and progressed into the clinical feature like dilated cardiomyopathy. It was concluded that about half cases with MDHD were a kind of hypertensive heart disease, and that a few cases, however, might be an early stage of dilated cardiomyopathy.