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Quantitative analysis of mitral valve morphology in atrial functional mitral regurgitation using real-time 3-dimensional echocardiography atrial functional mitral regurgitation

Authors :
Tao Cong
Jinping Gu
Alex Pui-Wai Lee
Zhijuan Shang
Yinghui Sun
Qiaobing Sun
Hong Wei
Na Chen
Siyao Sun
Tingting Fu
Source :
Cardiovascular Ultrasound, Vol 16, Iss 1, Pp 1-10 (2018)
Publication Year :
2018
Publisher :
BMC, 2018.

Abstract

Abstract Background Atrial fibrillation (AF) can result in atrial functional mitral regurgitation (MR), but the mechanism remains controversial. Few data about the relationship between the 3-dimensional morphology of the MV and the degree of MR in AF exist. Methods Real-time 3-dimensional transesophageal echocardiography (3D-TEE) of the MV was acquired in 168 patients with AF (57.7% persistent AF), including 25 (14.9%) patients with moderate to severe MR (the MR+ group) and 25 patients without AF as controls. The 3-dimensional geometry of the MV apparatus was acquired using dedicated quantification software. Results Compared with the group of patients with no or mild MR (the MR- group) and the controls, the MR+ group had a larger left atrium (LA), a more dilated mitral annulus (MA), a reduced annular height to commissural width ratio (AHCWR), indicating flattening of the annular saddle shape, and greater leaflet surfaces and tethering. MR severity was correlated with the MA area (r2 = 0.43, P

Details

Language :
English
ISSN :
14767120
Volume :
16
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Cardiovascular Ultrasound
Publication Type :
Academic Journal
Accession number :
edsdoj.80ba4a522c743ab8b3fe6f9493dd380
Document Type :
article
Full Text :
https://doi.org/10.1186/s12947-018-0131-1