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Table 4 Intraoperative and anesthetic data in the two groups

From: The effect of low central venous pressure on hepatic surgical field bleeding and serum lactate in patients undergoing partial hepatectomy: a prospective randomized controlled trial

 

Group F (n = 69)

Group L (n = 70)

t or Z value

P value

Duration of all PTC (mins)

25.0 (15.5, 37.5)

25.5 (15, 34.5)

−0.089

0.929

Blood transfusion/no blood transfusion (n)

4/69

2/70

−0.937

0.349

Operation time (mins)

189.6 ± 59.6

187.8 ± 54.5

0.946

0.861

Urine output (ml)

200 (100, 300)

200 (100, 250)

−0.637

0.524

Blood loss (ml)

200 (125, 400)

200 (150, 425)

−0.133

0.894

CVP during PTC (mm Hg)

4.0 (3, 5)

2.5 (1.5, 3.5)

−5.064

< 0.001*

SBP during PTC (mm Hg)

109.6 ± 11.0

103.1 ± 10.8

3.518

0.001*

MAP during PTC (mm Hg)

78.3 ± 8.7

74.6 ± 7.6

2.630

0.010*

Frequency of additional fluid infusion (0/1/more than 2) (n)

42/19/8

38/24/8

−0.697

0.486

Frequency of ephedrine (0/1/2/more than 3) (n)

41/12/14/2

13/20/15/22

−5.199

< 0.001*

  1. The data are presented as median and interquartile range (M (P25, P75) or mean ± standard deviation or numbers of patients. Group F: the fluid restriction group; Group L: the fluid restriction + low CVP group; CVP Central venous pressure, SBP Systolic blood pressure, PTC Portal trail clamping, MAP Mean arterial pressure.* P < 0.05