Accumulation of pericardial fat correlates with left ventricular diastolic dysfunction in patients with normal ejection fraction.

Abstract:

BACKGROUND:Left ventricular diastolic dysfunction (LVDD) plays an important role in heart failure with normal left ventricular ejection fraction (LVEF). Obesity is one of the major comorbid conditions of LVDD. Pericardial fat (PF) is an ectopic fat depot with possible paracrine or mechanical effects on the coronary circulation and myocardial function. METHODS:We measured PF volume on 64 slice computed tomography and analyzed echocardiographic parameters to confirm LVDD in 229 consecutive patients suspected of coronary artery disease with LVEF of more than 50% and no symptomatic heart failure (59% men, 67±12 years). LVDD was defined as the ratio of transmitral Doppler early filling velocity to tissue Doppler early diastolic mitral annular velocity (E/e') >10. RESULTS:PF volume correlated significantly with E/e' (r=0.21, p<0.01), left ventricular mass index (r=0.23, p<0.001), and left atrial diameter (r=0.32, p<0.001). The mean PF volume was significantly greater in patients with LVDD (184±61cm(3), n=141) than in those without LVDD (154±58, n=88, p<0.001). Multivariate logistic regression analysis indicated that PF volume correlated significantly with the presence of LVDD (odds ratio: 2.00 per 100cm(3) increase in PF volume, p=0.02) independent of age, gender, abdominal obesity, hypertension, and diabetes. CONCLUSIONS:PF volumes are significantly associated with LVDD, independent of other factors such as hypertension or diabetes. PF may be implicated in the pathogenesis of LVDD in patients with normal LVEF.

journal_name

J Cardiol

journal_title

Journal of cardiology

authors

Konishi M,Sugiyama S,Sugamura K,Nozaki T,Matsubara J,Akiyama E,Utsunomiya D,Matsuzawa Y,Yamashita Y,Kimura K,Umemura S,Ogawa H

doi

10.1016/j.jjcc.2012.01.006

subject

Has Abstract

pub_date

2012-05-01 00:00:00

pages

344-51

issue

3

eissn

0914-5087

issn

1876-4738

pii

S0914-5087(12)00010-X

journal_volume

59

pub_type

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