Table 2: Venous blood gas analysis of patients in groups

 

Group D

(n= 20)

Group P

(n= 17)

P

pH

                     t1

                     t2

                     t3

 

7.38 ± 0.27

7.34 ± 0.24

7.32 ± 0.45

 

7.35 ± 0.04

7.30 ± 0.06

7.34 ± 0.03

 

0.024*

0.015

0.376

PvCO2

                     t1

                     t2

                     t3

 

41.50 ± 4.35

42.09 ± 3.73

45.17 ± 6.04

 

42.60 ± 4.92

48.70 ± 6.22

45.17 ± 6.04

 

0.457

0.001*

0.750

PvO2 

                     t1

                     t2

                     t3

 

36.05 ± 13.3

51.90 ± 17.8

38.25 ± 21.6

 

30.58 ± 7.7

29.05 ± 9.0

31.41 ± 10.7

 

0.146

0.001*

0.245

Sa 

                     t1

                     t2

                     t3

 

55.2 ± 18.0

75.3 ± 17.0

48.6 ± 21.7

 

52.7 ± 16.9

46.8 ± 17.8

52.1 ± 22.8

 

0.669

0.001*

0.638

Lactate

                     t1

                     t2

                     t3

 

1.4 ± 0.6

1.6 ± 0.7

1.4 ± 0.5

 

1.6 ± 0.4

2.0 ± 0.5

1.6 ± 0.4

 

0.202

0.069

0.189

HCO3

                     t1

                     t2

                     t3

 

23.4 ± 1.4

21.8 ± 1.3

21.7 ± 1.7

 

23.0 ± 1.7

20.9 ± 2.2

21.8 ± 1.0

 

0.544

0.175

0.774

 

Data presented as mean ± SD.

 *: P < 0. 05 was accepted statistically significant. t1: Baseline, t2: 20th minutes after tourniquet release, t3: 2 hour after tourniquet release