Association of Relatively Short Posterior Mitral Leaflet With Mitral Regurgitation in Patients With Atrial Fibrillation

Background:The underlying mechanism of mitral regurgitation (MR) in atrial fibrillation (AF) is an isolated annulus dilation caused by left atrial (LA) remodeling. However, the association of mitral valve (MV) geometry with MR in AF patients remains unclear.Methods and Results:We studied 96 AF patie...

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Veröffentlicht in:	Circulation Journal 2019/10/25, Vol.83(11), pp.2312-2319
Hauptverfasser:	Takada, Hiroki, Tanaka, Hidekazu, Yokota, Shun, Mukai, Jun, Suto, Makiko, Soga, Fumitaka, Hatani, Yutaka, Matsuzoe, Hiroki, Hatazawa, Keiko, Matsumoto, Kensuke, Fukuzawa, Koji, Hirata, Ken-ichi
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Aged, 80 and over Atrial fibrillation Atrial Fibrillation - complications Atrial Fibrillation - diagnosis Atrial Fibrillation - physiopathology Atrial Function, Left Atrial Remodeling Echocardiography Echocardiography, Doppler, Color Echocardiography, Three-Dimensional Echocardiography, Transesophageal Female Hemodynamics Humans Male Middle Aged Mitral regurgitation Mitral valve Mitral Valve - diagnostic imaging Mitral Valve - physiopathology Mitral Valve Insufficiency - diagnostic imaging Mitral Valve Insufficiency - etiology Mitral Valve Insufficiency - physiopathology Predictive Value of Tests Retrospective Studies Risk Factors
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Zusammenfassung:	Background:The underlying mechanism of mitral regurgitation (MR) in atrial fibrillation (AF) is an isolated annulus dilation caused by left atrial (LA) remodeling. However, the association of mitral valve (MV) geometry with MR in AF patients remains unclear.Methods and Results:We studied 96 AF patients with preserved left ventricular ejection fraction (LVEF). MV geometry was evaluated with 3-dimensional transesophageal echocardiography (3D-TEE). Mitral annulus area of the MR group (n=11, ≥ moderate) was significantly larger (10.6±1.8 vs. 8.2±1.5 cm2, P
ISSN:	1346-9843 1347-4820 1347-4820
DOI:	10.1253/circj.CJ-19-0529