Parallel improvement of left ventricular geometry and filling pressure after transcatheter aortic valve implantation in high risk aortic stenosis: comparison with major prosthetic surgery by standard echo Doppler evaluation

Table 2 Comparison of echo Doppler variables before and after the procedures and impact of the procedure (TAVI vs. AVR)

Variables	At entry	TAVI	At entry	AVR	Within patients difference	Time related difference between procedures
HR (beats/m)	71.8 ± 8.6	70.9 ± 7.8	73.3 ± 8.1	73.6 ± 9,3	0.706	0.381
TG max (mmHg)	88.3 ± 14.6	21.3 ± 7.7	94.1 ± 14.6	26.9 ± 5.6	<0.0001	0.950
TG mean (mmHg)	48.5 ± 8.8	11.1 ± 4.2	50.6 ± 7.2	14.0 ± 3.6	<0.0001	0.570
Zva (mmHg/m x m ²)	5.1 ± 1.3	3.9 ± 1.1	5.5 ± 1.9	4.5 ± 1.6	<0.0001	0.225
LVMi (mg/m^2.7)	80.0 ± 17.9	70.6 ± 15.7	69.2 ± 15.8	68.7 ± 15.3	<0.0001	<0.0001
RWT	0.56 ± 0.09	0.50 ± 0.08	0.54 ± 0.08	0.54 ± 0.08	<0.0001	<0.0001
EF (%)	52.1 ± 6.9	55.2 ± 8.6	55.3 ± 8.0	57.2 ± 8.8	<0.0001	0.244
SVi (ml/m²)	46.8 ± 12.5	46.6 ± 10.7	43.4 ± 11.9	43.8 ± 10.4	0.886	0.725
E/A ratio	1.06 ± 0.55	1.21 ± 0.32	0.96 ± 0.25	1.10 ± 0.17	<0.001	0.981
E velocity DT (ms)	198.8 ± 76.7	187.4 ± 65.8	194.3 ± 65.7	181.0 ± 50.1	<0.01	<0.815
e’ velocity (cm/s)	8.6 ± 1.3	11.6 ± 1,5	8.9 ± 1.3	12.5 ± 1.6	<0.0001	0.147
E/e’ ratio	11.9 ± 2.9	9.06 ± 1.9	12.3 ± 2.8	11.5 ± 2.2	<0.0001	<0.0001
LAVi (ml/m²)	34.5 ± 7.7	28.2 ± 6.9	36.2 ± 3.6	27.8 ± 3.5	<0.0001	0.484

A = Transmitral atrial velocity, DT = Deceleration time, E = Transmitral early diastolic velocity, e’ = Pulsed Tissue Doppler early diastolic velocity of the lateral mitral annulus, EF = Ejection fraction, LAVi = Left atrial volume index, LVMi = Left ventricular mass index, RDWT = Relative diastolic wall thickness, SVi = Stroke volume index, TG = Transvalvular gradient, Zva = Valvular-arterial impedance.

ISSN: 1476-7120