Table 2.

Echocardiographic Characteristics of Asymptomatic Patients with Severe AS and LVEF < 50% (n = 43) versus Asymptomatic Patients with Severe AS and LVEF ≥ 50% (n = 122)

Echocardiographic Parameter	Asymptomatic, severe AS with LVEF < 50% (n = 43)	Asymptomatic, Severe AS with LVEF ≥ 50% (n = 122)	P value
Systolic blood pressure (mmHg)	135 ± 20	140 ± 21	0.441
LVEDD∥ (mm, mean ± SD)	54 ± 7	47 ± 6	< 0.001
LV§ mass index (g/m2)	145 ± 37	117 ± 40	0.0008
Relative wall thickness	0.46 ± 0.1	0.55 ± 0.12	0.003
LVEF¶ (%)	43 ± 6	64 ± 7	< 0.001
Stroke volume index (ml/m2)	43 ± 11	48 ± 10	0.402
Cardiac index (L/min/m2)	3.1 ± 0.9	3.3 ± 0.7	0.258
AVA† by continuity equation (cm2)	0.8 ± 0.2	0.8 ± 0.2	0.911
AVA index (cm2/m2)	0.43 ± 0.1	0.44 ± 0.1	0.389
AV* peak systolic velocity (m/s)	4.1 ± 0.7	4.4 ± 0.7	0.02
AV* mean gradient (mmHg)	43 ± 14	48 ± 16	0.192
LA end systolic dimension‡ (mm)	44 ± 7	46 ± 8	0.957
E/e’ ratio	18 ± 8	16 ± 7	0.504
Mitral deceleration time (ms)	212 ± 88	256 ± 73	< 0.001
Right ventricular systolic pressure (mmHg)	42 ± 13	42 ± 29	0.179
Valvuloarterial impedance (mmHg·min/ml)	4.6 ± 1.3	4.0 ± 0.9	0.137

^*AV = aortic valve;

^†AVA = aortic valve area;

^‡LA = left atrial;

^§LV = Left ventricle;

^∥LVEDD = left ventricular end diastolic dimension;

^¶LVEF = left ventricular ejection fraction