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Table 3 Echocardiography data prior to surgery (mean = 120 days; median = 90 days) and early (mean = 43.1 days; median= 7 days) and late (mean=4.3 years; median= 4.4 years) after surgery

From: Totally biological composite aortic stentless valved conduit for aortic root replacement: 10-year experience

  N valid Mean (SD) Range P25, P50, P75
Aortic root diameter (mm)     
   Preop 26 51 (14.3) 26-83 41; 50; 57
   First echo post-op 18 34.6 (5.5) 25-49 31; 34; 38
   Last echo post-op 15 33.6 (4.3) 25-40 30; 33.5; 37
LVIDd (mm)     
   Preop 11 64 (11.7) 45-78 53; 62; 75
   First echo post-op 17 52 (8) 40-69 46; 52; 58
   Last echo post-op 16 49 (7.3) 36-64 43; 48; 53
Aortic velocity (m/sg)     
   Preop 10 2.6 (0.9) 1.4-4.7 1.9; 2.3; 3.1
   First echo post-op 34 2.1 (0.5) 1-3.2 1.5; 2; 2.3
   Last echo post-op 20 1.97 (0.6) 0.9-3.8 1.6; 1.9; 2
Aortic max gradient     
   Preop 25 51 (31) 8.1-122 22; 50; 72
   First echo post-op 38 17 (9.3) 4.3-42 10.3; 15.5; 21.2
   Last echo post-op 26 16.2 (11) 3.5-59 10.6; 14.3; 18.3
Aortic mean gradient     
   Preop 16 23.7 (21) 4.4-77 8; 17.5; 34.2
   First echo post-op 37 9.5 (4.3) 3.3-23.3 5.8; 9; 12
   Last echo post-op 22 9.4 (6.4) 3-34 6.1; 8; 9.4
Aortic V2 VTI     
   Preop 8 51 (26) 27-110 35; 41; 59
   First echo post-op 35 34.4 (11) 17-62 26; 32; 40
   Last echo post-op 16 37 (16) 25-91 28.4; 31; 40.1
LV ejection fraction     
   Preop 19    
> 50%   8 (12%)   
30-50%   8 (12%)   
< 30%   3 (4.5%)   
   First echo post-op 15    
>50%   8 (12%)   
30-50%   2 (3%)   
< 30%   5 (7.5%)   
   Last echo post-op 19    
> 50%   16 (24%)   
30-50%   2 (3%)   
< 30%   1 (1.5%)