Table 1

Clinical, echocardiographic, and catheterisation data of 333 patients with aortic valve stenosis (AVA<1.0 cm²) and the subgroups with inconsistent grading (catheter-derived AVA<1.0 cm² and ΔPm<40 mm Hg) and consistent severe stenosis (AVA<1.0 cm² and ΔPm>40 mm Hg)

		Aortic valve stenosis
		All patients	Inconsistent	Consistent	p Value
		(n=333)	AVA<1.0 cm² ΔPm≤40 mm Hg (n=85)	AVA<1.0 cm² ΔPm>40 mm Hg (n=153)	p Value
Clinical data
Age	years	67.6±10.5	71±11	67±11	0.006
Female	%	45	59	49	0.18
Height	cm	167±9	163±8	166±8	0.01
Weight	kg	76±13	73±12	74±12	0.52
BSA	m²	1.87±0.2	1.82±0.2	1.85±0.2	0.23
Systolic BP	mm Hg	140±23	144±25	138±22	0.04
Diastolic BP	mm Hg	70±ll	69±12	70±10	0.41
CAD	%	45	53	39	0.06
Hypertension	%	67	80	57	0.001
Hypercholesterolaemia	%	72	68	73	0.46
Diabetes mellitus	%	18	22	16	0.30
Echocardiography
LV diameter
End-diastolic	mm	47.2±5.8	45.8±5.4	47.0±5.9	0.13
End-systolic	mm	28.9±5.3	28.2±4.9	28.8±5.1	0.39
Shortening fraction	%	39.1±6.3	38.9±6.1	39.1±6.1	0.77
LVOT
Diameter	mm	19.9±1.6	19.5±1.5	19.8±1.5	0.23
Vmax	m/s	1.0±0.16	1.0±0.2	1.0±0.2	0.19
Vmean	m/s	0.68±0.11	0.68±0.1i	0.68±0.11	0.72
Aortic valve
Vmax	m/s	4.43±0.66	4.16±0.50	4.8±0.55	0.001
Vmean	m/s	3.15±0.55	2.93±0.39	3.48=049	0.001
ΔPm	mm Hg	45.8±15.3	39.4±10.6	54.9±14.3	0.001
Area	cm²	0.73±0.17	0.76±0.12	0.66±0.16	0.001
Indexed area	cm²/m²	0.39±0.09	0.42±0.07	0.36±0.09	0.001
Stroke volume	m/s	70±14	67±12	69±14	0.35
Stroke volume index	ml/m²	37.5±7.1	37.1±6.6	37.4±7.4	0.79
Cardiac catheterisation
Heart rate	/min	71.0±13	70.1±12.2	72.3±14.0	0.44
Ejection period	s	0.36±0.05	0.36±0.05	0.36±0.05	0.78
Cardiac output	1/mm	5.1±1.1	4.4±0.9	5.0±1.0	0.001
Cardiac index	1/min/m²	2.7±0.5	2.5±0.5	2.7±0.5	0.001
Stroke volume	ml	72.9±17.7	63.2±13.6	70.1±14.8	0.001
Stroke volume index	ml/m²	39.4±8.3	35.3±6.9	38.7±7.2	0.001
Aortic valve
ΔPm	mm Hg	42.6±17.1	32.4±5.9	56.7±12.9	0.001
area	cm	0.88±0.3	0.80±0.1	0.69±0.1	0.001
indexed area	cm²/m²	0.47±0.15	0.44±0.07	0.37±0.07	0.001

p values are for comparison of inconsistent versus consistent grading.
AVA, aortic valve area; BSA, body surface area; BP, blood pressure; CAD, coronary artery disease; LV, left ventricular; LVOT, left ventricular outflow tract; ΔPm, mean pressure gradient.