Table 4.

Correlation of ERO With Echocardiographic Variables

Echocardiographic Variables	ERO, mm2 (r)	P Value
Tenting area, cm2	0.574	<0.001a
Mitral annular area, cm2	0.207	0.201
LVEDV, mL	0.352	0.026a
LVESV, mL	0.294	0.066
Spherical index at systole	0.458	0.003a
LVEF, %	−0.279	0.081
Edge length of mitral tetrahedron, mm
DAP	0.145	0.370
DAL	0.206	0.202
DAM	0.209	0.196
DPL	0.186	0.251
DPM	0.075	0.645
DML	0.449	0.004a

Abbreviations: D_AL, the distance between the root of lateral papillary muscle and the anterior annulus; D_AM, the distance between the root of medial papillary muscle and the anterior annulus; D_AP, distance between the anterior and posterior annulus; D_ML, the interpapillary muscle roots distance; D_PL, the distance between the root of lateral papillary muscle and the posterior annulus; D_PM, the distance between the root of medial papillary muscle and the posterior annulus; ERO, effective regurgitant orifice; LVEDV, left ventricular end‐diastolic volume; LVEF, left ventricular ejection fraction; LVESV, left ventricular end‐systolic volume.

Results are expressed as coefficients of Pearson correlation analysis.

^aIndicates a significant correlation.