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Table 3 Correlations between purines, blood pH, lactate, and β-hydroxybutyrate in maternal plasma and umbilical arterial plasma in a group of fasting patients (Group II – SF) undergoing spinal anesthesia before elective Cesarean delivery

From: Maternal and umbilical cord plasma purine concentrations after oral carbohydrate loading prior to elective Cesarean delivery under spinal anesthesia: a randomized controlled trial

Parameters

Mother

Umbilical cord

UA

HYP

XA

blood pH

LA

β-HB

UA

HYP

XA

blood pH

LA

Rs

Rs

Mother

UA

 

-0.14

0.15

0.10

0.06

-0.01

0.95

-0.04

0.03

0.18

0.21

HYP

  

0.43

-0.03

0.24

0.25

-0.16

0.17

0.15

0.02

0.11

XA

   

-0.14

0.28

0.03

0.12

-0.05

0.00

0.04

0.08

blood pH

    

-0.32

0.14

0.04

0.29

0.31

0.06

0.09

LA

     

-0.09

0.08

0.08

0.16

0.14

0.05

β-HB

      

0.03

-0.15

-0.15

-0.03

0.05

Umbilical cord

UA

       

-0.16

-0.07

0.18

0.25

HYP

        

0.91

-0.03

0.06

XA

         

-0.04

0.16

blood pH

          

-0.40

LA

           
  1. bolded values - statistically significant; CHO group – preoperative oral carbohydrate supplementation group; SF group – fasted for 6 h for solids and 2 h for clear liquids; Rs – Spearman’s rank correlation coefficient; UA – uric acid; HYP – hypoxanthine; XA – xanthine; LA – lactate; β-HB - β-hydroxybutyrate