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Table 3 Echocardiographic findings

From: Comparative evaluation of left ventricular mass regression after aortic valve replacement: a prospective randomized analysis

  ROSS
n = 20
MIRA
n = 20
PRIMA PLUS
n = 20
MIRA
n = 20
PRIMA PLUS
n = 20
PERI-MOUNT
n = 20
Mean gradient (mmHg)
Preoperative 56.6 ± 12.6 59.4 ± 16.2 49.0 ± 20 52.0 ± 18 58.1 ± 18.2 50.9 ± 14.8
6 months 3.2 ± 1.7 9.3 ± 4.5 9.3 ± 6.9 10.2 ± 5.4 8.4 ± 3.6 7.3 ± 3.7
12 months 2.6 ± 1.3 9.3 ± 3.6 7.0 ± 4.7 8.9 ± 6.1 7.4 ± 4.9 6.6 ± 2.3
p-value p = 0.005 p = NS p = NS
Effective Orifice Area (cm2)
preoperative 0.71 ± 0.3 0.82 ± 0.2 0.85 ± 0.4 0.79 ± 0.3 0.87 ± 0.4 0.76 ± 0.3
6 months 2.10 ± 0.5 1.61 ± 0.4 1.70 ± 0.5 1.68 ± 0.4 1.63 ± 0.4 1.51 ± 0.6
12 months 2.50 ± 0.6 1.81 ± 0.3 1.91 ± 0.7 1.84 ± 0.5 1.83 ± 0.6 1.92 ± 0.8
p-value p = 0.005 p = NS p = NS
EF (%)
preoperative 66.3 ± 7.9 67.2 ± 6.8 62.1 ± 7.2 65.0 ± 6.1 65.9 ± 7.4 66.6 ± 8.6
6 months 66.4 ± 8.3 65.8 ± 7.8 65.4 ± 6.9 64.3 ± 7.2 67.6 ± 8.7 66.2 ± 10.5
12 months 67.5 ± 8.1 65.0 ± 10.7 66.9 ± 8.1 65.9 ± 6.8 66.6 ± 8.1 64.7 ± 11.2
p-value p = NS p = NS p = NS
Left Ventricular Posterior Wall Thickness (cm)
preoperative 1.95 ± 0.3 1.81 ± 0.2 1.99 ± 0.5 2.01 ± 0.4 1.93 ± 0.3 1.98 ± 0.2
6 months 1.53 ± 0.3 1.45 ± 0.1 1.61 ± 0.3 1.65 ± 0.2 1.63 ± 0.2 1.66 ± 0.1
12 months 1.32 ± 0.2 1.24 ± 0.2 1.28 ± 0.2 1.24 ± 0.2 1.26 ± 0.2 1.32 ± 0.2
p-value p = NS p = NS p = NS
Interventricular Septum Thickness (cm)
preoperative 1.98 ± 0.2 1.82 ± 0.4 1.95 ± 0.3 1.97 ± 0.2 1.94 ± 1.9 1.91 ± 0.9
6 months 1.70 ± 0.2 1.60 ± 0.2 1.60 ± 0.2 1.69 ± 0.3 1.54 ± 0.2 1.51 ± 0.2
12 months 1.34 ± 0.1 1.24 ± 0.1 1.29 ± 0.3 1.32 ± 0.2 1.24 ± 0.3 1.28 ± 0.2
p-value p = NS p = NS p = NS
Left Ventricular Mass Index (g/m2)
preoperative 185 ± 42.3 179 ± 38.6 181 ± 40.9 182 ± 39.2 174 ± 34.3 180 ± 40.5
6 months 149 ± 34.1 141 ± 35.4 143 ± 34.2 145 ± 32.8 130 ± 31.0 132 ± 36.1
12 months 114 ± 27.2 110 ± 30.2 109 ± 29.3 111 ± 27.6 104 ± 28.5 106 ± 32.5
p-value p = NS p = NS p = NS