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Characterization of outpatients with isolated diastolic dysfunction and evaluation of the burden in a Japanese community: Sado Heart Failure Study. | LitMetric

Background: The incidence of diastolic heart failure (DHF) is increasing with the aging of the community and identifying patients with isolated diastolic dysfunction (IDD) is important for preventing DHF. However, very little information is available about such patients in the Japanese community.

Methods And Results: The medical information of all outpatients with moderate to severe IDD was extracted from the records of approximately 6,948 individuals who underwent echocardiographic (Echo) examinations during the past 5 years in Sado Island. Of the 284 patients extracted, 272 survived until 2003. In January 2003 the proportion of patients with moderate to severe IDD in the general population sector aged 45-84 years was 0.9% for males and 0.5% for females, and this proportion increased sharply after the age of 65 in both genders, reaching 1.6% for men in their 70 s and 0.8% for women in their 80 s. On Echo, 165 patients (61%) showed hypertrophic left ventricular geometry. The Charlson comorbidity index score was < or = 1 in 63% of patients. The cumulative survival of IDD patients, irrespective of a history of congestive heart failure (HF), was significantly lower than in the general population.

Conclusions: Moderate to severe IDD is not uncommon in the elderly and has a poor prognosis. Characteristics of outpatients with IDD should be taken into consideration when establishing a preventive strategy for HF in the Japanese community.

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http://dx.doi.org/10.1253/circj.71.1013DOI Listing

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