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

Table 3 Three-Dimensional Mitral Valve Geometry

variable	Control (n = 25)	Patients with AF (n = 168)		P
variable	Control (n = 25)	MR- Group (143)	MR+ Group (n = 25)	P
Annulus
Area cm²	8.86 ± 1.03	9.53 ± 1.42*	12.66 ± 0.85*^#	<0.01
Circumference mm	108 ± 9	115 ± 8*	134 ± 13*^#	<0.01
Anteroposterior diameter mm	30.6 ± 2.4	32.0 ± 20.4	32.9 ± 20.4	0.90
Commissural width mm	36.3 ± 2.3	38.3 ± 3.0*	41.0 ± 3.8*^#	<0.01
High mm	7.6 ± 2.0	6.3 ± 1.5*	6.2 ± 2.2*	<0.01
AHCWR %	19.4 ± 4.3	17.3 ± 4.4^†	15.2 ± 5.1*^‡	<0.01
Leaflet
Anterior leaflet surface area cm²	5.38 ± 0.99	5.34 ± 1.81	6.81 ± 1.91*^#	<0.01
Posterior leaflet surface area cm²	5.96 ± 1.37	5.41 ± 1.49	6.14 ± 1.30^‡	0.03
MV tenting volume ml	1.72 ± 0.73	1.72 ± 0.89	2.67 ± 1.07*^#	<0.01

AHCWR annular height-to-commissural width ratio, MV mitral valve
†P <0.05 vs. controls, ‡P <0.05 vs. MR-Group. *P <0.01 vs. controls, ^#P <0.01 vs. MR-Group

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