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Table 2 Serial changes in RI values and other examinations

From: Early introduction of tolvaptan after cardiac surgery: a renal sparing strategy in the light of the renal resistive index measured by ultrasound

  Group T (n = 8) Group L (n = 6) p value intergroup comparison
1st exam 2nd exam 3rd exam 4th exam ANOVA p value 1st exam 2nd exam 3rd exam 4th exam ANOVA p value 1st exam 2nd exam 3rd exam 4th exam
Renal ultrasound
 Renal RI 0.67 ± 0.05 0.77 ± 0.09 0.65 ± 0.05 0.62 ± 0.04 0.0002 0.66 ± 0.04 0.69 ± 0.01 0.71 ± 0.05 0.70 ± 0.04 0.2008 0.816 0.049 0.043 0.002
  p value; vs. 1st exam 0.025 0.425 0.093   0.203 0.096 0.196      
  p value; vs. 2nd exam 0.006 0.006   0.341 0.485      
Echocardiography
 LVEDD (mm) 58.5 ± 19.8 55.1 ± 15.4 57.2 ± 16.5 56.1 ± 17.6 0.9823 50.3 ± 9.4 51.3 ± 10.3 51.0 ± 11.7 46.5 ± 6.7 0.8112 0.371 0.614 0.446 0.230
 LVEF (%) 45.1 ± 15.2 44.9 ± 14.5 45.0 ± 14.0 47.0 ± 15.3 0.9902 53.3 ± 8.3 52.8 ± 9.5 55.8 ± 11.7 52.0 ± 0.3 0.9150 0.249 0.266 0.151 0.494
 IVC diameter (mm) 23.1 ± 5.4 23.5 ± 3.2 21.5 ± 3.6 19.8 ± 3.2 0.2336 23.1 ± 5.4 21.5 ± 2.7 21.2 ± 3.2 18.2 ± 2.6 0.1475 0.379 0.240 0.860 0.439
  p value; vs. 1st exam 0.798 0.318 0.021   0.541 0.793 0.023      
  p value; vs. 2nd exam 0.049 0.004   0.783 0.036      
 TAPSE (mm) 16.4 ± 3.6 17.5 ± 3.4 19.0 ± 4.1 19.7 ± 4.2 0.3165 19.8 ± 4.4 21.8 ± 2.8 21.5 ± 3.4 21.5 ± 3.8 0.7759 0.129 0.026 0.252 0.439
  p value; vs. 1st exam 0.380 0.041 0.015   0.216 0.387 0.419      
  p value; vs. 2nd exam 0.127 0.087   0.771 0.813      
Laboratory examinations
 Hb (g/dL) 10.0 ± 1.4 9.7 ± 1.4 10.0 ± 1.1 10.5 ± 1.5 0.6340 9.3 ± 0.6 9.1 ± 0.7 9.9 ± 1.2 10.4 ± 1.1 0.0893 0.259 0.369 0.920 0.881
  p value; vs. 1st exam 0.456 0.977 0.323   0.567 0.267 0.130      
  p value; vs. 2nd exam 0.383 0.052   0.283 0.110      
 Na (mEq/L) 136.3 ± 3.9 134.1 ± 1.5 136.4 ± 4.1 138.8 ± 3.2 0.0745 135.3 ± 2.2 135.0 ± 3.9 134.7 ± 2.3 134.7 ± 2.2 0.9699 0.616 0.571 0.384 0.019
  p value; vs. 1st exam 0.093 0.941 0.112   0.876 0.543 0.328      
  p value; vs. 2nd exam 0.170 0.005   0.797 0.830      
 Cre (mg/dL) 1.1 ± 0.6 1.3 ± 0.7 1.2 ± 0.5 1.1 ± 0.4 0.8967 1.2 ± 0.5 1.2 ± 0.5 1.3 ± 0.3 1.3 ± 0.3 0.9180 0.841 0.914 0.584 0.271
  p value; vs. 1st exam 0.079 0.190 0.502   0.667 0.224 0.309      
  p value; vs. 2nd exam 0.388 0.189   0.553 0.572      
 TP (g/dL) 6.0 ± 0.6 6.0 ± 0.5 6.0 ± 0.5 6.3 ± 0.4 0.9909 6.1 ± 0.4 6.0 ± 0.4 6.0 ± 0.5 6.1 ± 0.3 0.9763 0.923 0.880 0.987 0.308
  p value; vs. 1st exam 0.649 0.705 0.116   0.363 0.259 0.765      
  p value; vs. 2nd exam 0.756 0.042   0.862 0.275      
 Alb (g/dL) 3.5 ± 0.4 3.3 ± 0.3 3.6 ± 0.2 3.7 ± 0.5 0.2227 3.4 ± 0.2 3.2 ± 0.3 3.4 ± 0.2 3.5 ± 0.1 0.0987 0.681 0.660 0.146 0.380
  p value; vs. 1st exam 0.174 0.329 0.351   0.056 0.998 0.555      
  p value; vs. 2nd exam 0.026 0.059   0.071 0.073      
Duration requiring IV loop diuretics (days) 5.6 ± 1.6 8.7 ± 3.6 0.051
  1. Abbreviations not defined in the text; LVEDD left ventricular end diastolic diameter, LVEF left ventricular ejection fraction, IVC inferior vena cava, TAPSE tricuspid annular plane systolic excursion, Hb hemoglobin, Na sodium, K potassium, Crea creatinine, TP total protein, Alb albumin; Bold pvalues are significant at the 0.05 level.