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.