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Table 1 Bleeding score of the hepatic surgical field

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

Bleeding scoreGroup F (n = 69)Group L (n = 70)X2P
0 = no bleeding (n)28
1 = minor bleeding, no aspiration required (n)722
2 = minor bleeding, aspiration required (n)3428
3 = minor bleeding, frequent aspiration required (n)126
4 = moderate bleeding, visible only aspiration (n)146
5 = severe bleeding, frequent aspiration required, very hard to perform surgery (n)0017.1330.002
  1. Group F: the fluid restriction group; Group L: the fluid restriction + low CVP group