Skip to main content

Table 2 Baseline and 6 months 2D echocardiographic data on SAVR vs TAVI patients

From: Determinants of clinical improvement after surgical replacement or transcatheter aortic valve implantation for isolated aortic stenosis

  SAVR (n = 45) TAVI (n = 42) SAVR vs TAVIp-value
  mean ± SD Me (P25-P75) mean ± SD Me (P25-P75)  
AV annulus (cm)      
Baseline 21.34 ± 2.18 21 (20 - 22.75) 20.73 ± 2.39 21 (19 - 22) 0.337b
AV peak velocity (cm/sec)      
Baseline 4.81 ± 0.60 4.76 (4.36 - 5.13) 4.76 ± 0.61 4.81 (4.36 - 5.16) 0.909b
6 months 2.69 ± 0.74 2.51 (2.21 - 3.00) 2.07 ± 0.51 2.11 (1.72 - 2.31) <0.001a
p-value* <0.001 <0.001  
AV mean gradient (mmHg)      
Baseline 57.89 ± 13.91 54.9 (47.13 - 66.45) 54.67 ± 15.77 52.5 (44.0 - 60.3) 0.317a
6 months 17.21 ± 12.05 13.9 (11 - 21) 8.86 ± 4.72 8.1 (5.7 - 11.4) <0.001a
p-value** <0.001 <0.001  
AVA (EOA, cm2)      
Baseline 0.69 ± 0.2 0.7 (0.52 - 0.83) 0.62 ± 0.15 0.6 (0.51 - 0.7) 0.070a
6 months 1.5 ± 0.42 1.4 (1.2 - 1.75) 1.95 ± 0.54 1.8 (1.5 - 2.2) <0.001a
p-value** <0.001 <0.001  
AVA index (EAOI cm2/m2)      
Baseline 0.40 ± 0.11 0.38 (0.32 - 0.47) 0.37 ± 0.1 0.37 (0.31 - 0.42) 0.229b
6 months 0.87 ± 0.24 0.82 (0.68 - 1.00) 1.16 ± 0.39 1.05 (0.88 - 1.36) <0.001a
p-value* <0.001 <0.001  
Δ EAOI (cm2/m2) 0.47 ± 0.28 0.46 (0.3 - 0.59) 0.79 ± 0.37 0.65 (0.55 - 1.03) <0.001a
PPM [n (%)] 24 (58.6) 9 (23.1) <0.001
Severe PPM [n (%)] 7 (17.1) 0 0.012
Paravalvular AR 6m [n (%)] 3 (6.7) 23 (59) <0.001
E/ A ratio      
Baseline 0.79 ± 0.34 0.72 (0.61 - 0.89) 1.38 ± 0.87 1.07 (0.74 - 1.74) <0.001b
6 months 0.85 ± 0.25 0.81 (0.69 - 0.93) 1.34 ± 1.22 0.73 (0.57 - 1.74) 0.703b
p-value* 0.044 0.212  
E - wave deceleration time (ms)      
Baseline 235.11 ± 73.97 240 (180 - 280) 207.69 ± 79.97 198 (148 - 238.5) 0.039b
6 months 264.51 ± 72.84 250 (218.5 - 300) 251.82 ± 66.02 260 (190 - 295) 0.755b
p-value* <0.001 <0.001  
IVRT (ms)      
Baseline 99.09 ± 26.85 100 (80 - 120) 73.4 ± 33.91 70 (50 - 100) 0.001a
6 months 116.43 ± 20.41 110 (100 - 130) 102.19 ± 28.93 100 (82.5 - 127.5) 0.034a
p-value** 0.049 <0.001  
e’ (cm/s)      
Baseline 4.77 ± 1.8 4.4 (3.6 - 5.8) 5.56 ± 2.55 5 (4.1 - 6.1) 0.157b
6 months 5.59 ± 1.52 5.4 (4.6 - 6.73) 7 ± 3.07 6.1 (4.78 - 8.7) 0.033a
p-value* 0.005 0.495  
E/ e’      
Baseline 18.62 ± 7.11 16.9 (13.27 - 23.68) 23.55 ± 10.88 25.36 (15.99 - 30.78) 0.024b
6 months 16.73 ± 5.96 15.75 (13.02 - 19.86) 16.36 ± 10.77 11.72 (8.33 - 23.06) 0.153b
p-value* 0.096 0.177  
  1. AV = aortic valve; AVA = aortic valve area; EAOI = effective orifice area index; Δ EAOI = absolute increase in EAOI; PPM = patient-prosthesis mismatch; IVRT = Isovolumetric relaxation time; 6m = six months; values are mean ± SD or median (P25-P75) or n (%). a,b – different letters stand for significant differences in mean or median values according to t-test (a) or the Mann–Whitney U test (b).*Wilcoxon test; **Paired-sample t-test.