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Table 4 Comparison of the perfusion index in the block applied arm with the block type

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

Perfusion index (PI)

 

Axillary block (n:25)

Infraclavicular block (n:8)

p value

PI before block

3.2 ± 2.1

3.5 ± 2.0

0.550

5th min PI

6.7 ± 2.7

9.3 ± 5.3

0.150

10th min PI

9.6 ± 3.6

10.0 ± 3.0

0.352

20th min PI

10.7 ± 2.7

11.7 ± 3.7

0.374

  1. Mann–Whitney U test