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Table 5 Univariable analysis of risk factors of significant recurrent tricuspid regurgitation

From: Risk factors for postoperative recurrent tricuspid regurgitation after concomitant tricuspid annuloplasty during left heart surgery and the association between tricuspid annular circumference and secondary tricuspid regurgitation

Variables Obvious recurrent regurgitation (%) None obvious recurrent regurgitation (%) x2/t P
Gender
 Male 4 6.8 55 93.2 3.755 0.054
 Female 11 19.3 46 80.7   
Left side surgery
 None-MVR 13 13.0 87 87.0 0.003 0.956
 MVR 2 12.5 14 87.5   
NYHA class
 1 0 0 14 100 6.155 0.104
 2 7 11.5 54 88.5   
 3 6 17.1 29 82.9   
 4 2 33.3 4 66.7   
Preoperative Af
 Yes 14 18.2 63 81.8 5.608 0.018
 No 1 2.6 38 97.4   
Severity of FTR Preoperatively
 Mild 0 0 40 100 18.353 0.001
 Moderate 6 12.2 43 87.8   
 Severe 9 31.0 18 69.0   
Severity of FTR when discharge
 None 4 8.5 43 91.5 3.284 0.167
 Mild 4 10.5 34 89.5   
 Moderate 7 22.6 24 77.4   
Postoperative Af
 Yes 7 63.6 4 36.4 27.751 0.001
 No 8 7.6 97 92.4   
Age (years) 56.06 ± 11.58 64.33 ± 10.78 2.603 0.010*
BSA (m2) 1.73 ± 0.19 1.58 ± 0.13 − 4.156 0.001**
TAPSE (cm) 1.78 ± 0.17 1.73 ± 0.18 − 1.059 0.292
PASP (mmHg) 37.48 ± 13.05 40.53 ± 11.13 0.862 0.391
LA (mm) 47.57 ± 7.02 49.80 ± 8.14 1.116 0.267
RA (mm) 43.79 ± 5.57 45.47 ± 9.63 0.657 0.521
RV (mm) 36.38 ± 4.92 35.87 ± 3.83 − 0.384 0.702
LVEDD (mm) 50.92 ± 7.50 49.40 ± 5.89 − 0.751 0.454
LVESD (mm) 33.88 ± 5.58 34.27 ± 4.35 0.256 0.798
LVEF 0.61 ± 0.04 0.58 ± 0.04 − 2.648 0.009**
TAD (mm) 34.05 ± 3.12 35.60 ± 4.10 1.723 0.088
Length of septal annulus (cm) 3.75 ± 0.38 4.15 ± 0.54 3.546 0.001**
Length of anterior annulus (cm) 4.47 ± 0.53 5.15 ± 0.57 4.619 0.001**
Length of posterior annulus (cm) 3.40 ± 0.48 3.91 ± 0.65 3.710 0.001**
TAC (cm) 11.62 ± 1.11 13.21 ± 1.35 5.028 0.001**
TACI (cm/m2) 6.77 ± 0.83 8.39 ± 0.61 7.259 0.001**
  1. *P < 0.05; **P < 0.001 for Continuous variables analysis