Systolic Dysfunction in Urban Japan: Niigata-Sado Heart Failure Study

Background Heart failure (HF), which can be caused by left ventricular systolic dysfunction (LVSD), is a growing problem in developed countries with a large aging population. The aim of the present study was to characterize outpatients with LVSD in the adult population (45-84 years) in an urban Japa...

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Bibliographic Details
Published in:Circulation Journal 2008, Vol.72(3), pp.349-357
Main Authors: Ramadan, Mahmoud M., Ohno, Yukiko, Okura, Yuji, Tanabe, Naohito, Suzuki, Keisuke, Abe, Akira, Tamura, Makoto, Hatano, Tatsuro, Matsubara, Taku, Tamura, Yusuke, Yokoyama, Akihiro, Yamamoto, Tomohiko, Otsuka, Hideaki, Okada, Yoshinobu, Oda, Hirotaka, Yamamoto, Yasuyuki, Tsuda, Takashi, Ohno, Michiko, Yamazoe, Masaru, Shimotori, Takashi, Arai, Hiroyuki, Kodama, Makoto, Aizawa, Yoshifusa
Format: Article
Language:English
Subjects:
Echocardiography
Heart failure
Niigata-Sado Heart Failure Study
Systolic dysfunction
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Summary:Background Heart failure (HF), which can be caused by left ventricular systolic dysfunction (LVSD), is a growing problem in developed countries with a large aging population. The aim of the present study was to characterize outpatients with LVSD in the adult population (45-84 years) in an urban Japanese community (Niigata City), and delineate their characteristics in comparison with those in a rural one (Sado). Methods and Results Over a 5-year period, 1,297 patients (67% males) with LVSD (defined as ejection fraction ≤50%) were extracted from 87,953 echocardiography records available in 15 hospitals in Niigata City. The proportion of LVSD increased progressively with age (p-for-trend
ISSN:1346-9843
1347-4820
DOI:10.1253/circj.72.349