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Table 5 Pre- and postoperative echocardiography findings (N = 70)a

From: The Carpentier-Edwards Perimount Magna mitral valve bioprosthesis: intermediate-term efficacy and durability

Left ventricular EFb  
 Preoperative, % 54.8 % ± 1.25 %
 Postoperative, % 52.3 % ± 1.67 %
 Difference, % −2.50 % ± 1.57 %
P 0.1160
RVSPc  
 Preoperative, mmHg 50.1 ± 3.23
 Postoperative, mmHg 39.8 ± 2.18
 Matched-pair difference, mmHg −10.3 ± 3.23
P 0.0025
LA sized  
 Preoperative, cm2 5.557 ± 0.560
 Postoperative, cm2 4.641 ± 0.113
 Matched-pair difference, cm2 −0.915 ± 0.558
P 0.1158
LVIDe  
 Preoperative, cm 4.705 ± 0.883
 Postoperative, cm 4.598 ± 0.863
 Matched-pair difference, cm −0.107 ± 0.098
P 0.116
  1. cm centimeters, EF ejection fraction, LA left atrial, LVID left ventricular internal diameter, mmHg millimeters of mercury, RVSP right ventricular systolic pressure
  2. aContinuous variables expressed as mean ± standard error of the mean (SE)
  3. bBoth pre- and postoperative data available for only 64 patients
  4. cBoth pre- and postoperative data available for only 49 patients
  5. dBoth pre- and postoperative data available for only 46 patients
  6. eBoth pre- and postoperative data available for only 58 patients