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. 2014 Jan 17;9:17. doi: 10.1186/1749-8090-9-17

Table 3.

Echocardiographic preoperative and post-operative data

Variables
Overall
Non-PPM
Moderate PPM
p value*
  (n = 103) (n = 58) (n = 45)  
Preoperative data
Peak TVG (mmHg)
115.2 ± 38.7
121.4 ± 36.9
107.2 ± 31.8
0.362
Mean TVG (mmHg)
68.1 ± 21.9
71.2 ± 18.79
64.1 ± 26.8
0.381
LVMI (g/m2)
196.1 ± 44.3
201.7 ± 54.6
188.8 ± 68.4
0.154
EOAI (cm2/m2)
0.44 ± 0.18
0.42 ± 0.16
0.47 ± 0.08
0.631
Ejection fraction (%)
58.4 ± 11.9
59.8 ± 12.6
56.6 ± 9.9
0.184
Postoperative (at discharge) data
Peak TVG (mmHg)
a31.8 ± 12.1
a28.7 ± 13.4
a35.8 ± 16.1
0.398
Mean TVG (mmHg)
a17.2 ± 5.98
a16.3 ± 4.69
a18.4 ± 7.9
0.691
LVMI (g/m2)
170.8 ± 48.9
167.1 ± 39.1
175.6 ± 54.3
0.437
EOAI (cm2/m2)
a0.91 ± 0.21
a1.01 ± 0.13
a0.78 ± 0.09
<0.01
Ejection fraction (%)
56.9 ± 15.4
58.1 ± 13.4
55.3 ± 10.9
0.697
Follow-up data
Peak TVG (mmHg)
b32.3 ± 8.91
b29.6 ± 7.4
b35.1 ± 11.4
0.412
Mean TVG (mmHg)
b17.9 ± 6.79
b16.8 ± 5.14
b19.3 ± 8.16
0.689
LVMI (g/m2)
b118.9 ± 30.8
b117.1 ± 26.1
b121.2 ± 33.8
0.186
EOAI (cm2/m2)
b0.96 ± 0.18
b0.99 ± 0.21
b0.92 ± 0.16
0.781
Ejection fraction (%)
60.1 ± 6.5
61.2 ± 7.1
58.7 ± 10.3
0.336
Reduction rate (%): preoperative to follow-up
Peak TVG (%)
72.0 ± 12.6
75.6 ± 9.9
67.3 ± 15.9
0.131
Mean TVG (%)
73.7 ± 8.9
76.4 ± 13.1
69.8 ± 12.5
0.152
LVMI (%) 39.4 ± 20.9 41.9 ± 18.4 35.8 ± 19.8 0.109

TVG, transvalvular gradients; LVMI, left ventricular mass index; other abbreviations as in Tables 1 and 2. *Data were compared between the non-PPM versus the moderate PPM; aP < 0.05 for postoperative (at discharge) data versus preoperative data; bP < 0.05 for follow-up data versus preoperative data.