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Ain-Shams Journal of Anesthesiology

Table 3 Comparison of perfusion indices in the block applied arm and in the arm without block over time

From: Perfusion index (PI) measured in the brachial plexus blocks performed by ultrasonography: investigation of correlation with block success

 

Blocked

Mean ± SD

p value

Unblocked

Mean ± SD

p value

 

PI before block

3.3 ± 2.1

 < 0.001

3.7 ± 2.4

0.457

 

5th min PI

7.3 ± 3.6

3.7 ± 2.7

 

5th min PI

7.3 ± 3.6

 < 0.001

3.7 ± 2.7

0.364

 

10th min PI

9.7 ± 3.4

3.6 ± 2.6

 

10th min PI

9.7 ± 3.4

 < 0.001

3.6 ± 2.6

0.251

 

20th min PI

10.9 ± 3.0

3.6 ± 2.7

 
  1. Paired-sample t test
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