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

From: 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

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/m2.7) 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
  1. 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.