Table 6 Clinical characteristics of patients with PPP (n = 33)

Estimated blood loss (ml)

3167.65 ± 3255.71

2831.25 ± 1906.03

0.722

Tota transfusion (ml)

5497.76 ± 4251.83

5200.00 ± 2580.18

0.811

Red blood cell transfusion(u)

8.35 ± 10.01

8.00 ± 5.84

0.903

Blood plasma transfusion (ml)

811.76 ± 986.08

712.50 ± 565.54

0.727

Platelet transfusion(u)

0.41 ± 1.00

0.25 ± 0.45

0.559

Fibrinogen transfusion(g)

1.44 ± 2.84

0.94 ± 1.39

0.520

Prothrombin complex transfusion(u/100)

2.82 ± 6.29

3.38 ± 6.23

0.802

Postoperative hospital stay (day)

7.82 ± 4.75

6.75 ± 2.57

0.429

Preoperative hemoglobin(g/L)

113.76 ± 13.75

110.00 ± 21.49

0.551

Preoperative creatine (umol/L)

51.53 ± 12.74

42.69 ± 9.04

0.029#

Preoperative urea nitrogen (mmol/L)

3.43 ± 1.05

2.82 ± 0.94

0.089

Postoperative hemoglobin at 24 h(g/L)

99.41 ± 17.53

95.00 ± 13.07

0.421

Postoperative creatine at 24 h (umol/L)

59.06 ± 24.06

45.19 ± 11.20

0.044^#

Postoperative urea nitrogen at 24 h (mmol/L)

3.13 ± 1.42

2.69 ± 1.03

0.315

Spinal anesthesia

8 (47.1%)

9 (56.3%)

0.732

Preoperative ureteral stent placement

12 (70.6%)

10 (62.5%)

0.721