Document Detail

Impact of atrial fibrillation on tricuspid and mitral annular dilatation and valvular regurgitation.
MedLine Citation:
PMID:  12381084     Owner:  NLM     Status:  MEDLINE    
To investigate the effects of atrial fibrillation (AF) on the mitral and tricuspid valves, the corresponding annular dilatation and valvular regurgitation were compared with 2-dimensional and Doppler echocardiography in 31 consecutive patients with lone AF and 28 normal controls. Mid-systolic mitral and tricuspid annular areas were measured from 2 diameters in 2 orthogonal apical echocardiograms. Percent (%) mitral regurgitant (MR) or tricuspid regurgitant (TR) jet area to the left or right atrial area was evaluated and % MR or TR jet area >20% was considered moderate or significant. Both the mitral and tricuspid annular areas in patients with lone AF were significantly larger compared with the controls (mitral: 9.5 +/- 1.2 vs 6.6 +/- 0.9 cm2, lone AF vs control, p < 0.01) (tricuspid: 12.0 +/- 2.0 vs 7.5 +/- 0.9 cm2, p < 0.01). The % increase in the annular area relative to the mean normal value was significantly greater in the tricuspid valve (44 +/- 18 vs 60 +/- 28%, p < 0.01). Moderate or severe MR was not observed and the incidence of moderate or severe valve regurgitation (% jet area >20%) was significantly higher in the tricuspid valve (0/31 vs 11/31, MR vs TR, p < 0.01) in patients with lone AF. The % TR jet area showed significant correlation with tricuspid annular area (r2 = 0.65, p < 0.001). Lone AF is associated with annular dilatation of both mitral and tricuspid valves, but the annular dilatation and valvular regurgitation are significantly greater in the tricuspid valve.
Xiaoyan Zhou; Yutaka Otsuji; Shiro Yoshifuku; Toshinori Yuasa; Hui Zhang; Kunitsugu Takasaki; Keiko Matsukida; Akira Kisanuki; Shinichi Minagoe; Chuwa Tei
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Circulation journal : official journal of the Japanese Circulation Society     Volume:  66     ISSN:  1346-9843     ISO Abbreviation:  Circ. J.     Publication Date:  2002 Oct 
Date Detail:
Created Date:  2002-10-16     Completed Date:  2003-06-05     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  101137683     Medline TA:  Circ J     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  913-6     Citation Subset:  IM    
First Department of Internal Medicine, Kagoshima University School of Medicine, Japan.
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MeSH Terms
Atrial Fibrillation / complications*
Case-Control Studies
Middle Aged
Mitral Valve / physiopathology*
Mitral Valve Insufficiency / etiology*
Reproducibility of Results
Tricuspid Valve / physiopathology*

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