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Table 3 Individual outcome parameters

From: No correlation between minimal electrical charge at the tip of the stimulating catheter and the efficacy of the peripheral nerve block catheter for brachial plexus block: a prospective blinded cohort study

M/F

Response*

Sensory block at 30 min

NRS recovery**

24 h morphine consumption; mg

MEC††; nC

F

MD†

Complete

0

7

30

F

MD

Complete

0

23

38

M

MD

Unable¶

6

29

42

F

MB‡

Unable

2

4

42

M

MT§

Complete

0

1

42

M

MB

Complete

0

28

52

M

MT

Complete

4

21

56

F

MT

Complete

4

28

60

F

MD

Unable

0

26

62

M

MD

Partial

0

0

65

F

MT

Complete

0

1

66

F

MB

Unable

4

15

70

M

MB

Unable

0

0

74

M

MB

Unable

0

1

80

M

MT

Unable

0

17

80

M

MB

Unable

0

0

80

M

MT

Complete

0

4

92

F

MT

Complete

0

3

94

M

MD

Unable

0

1

100

M

MT

Unable

0

3

100

F

MT

Partial

0

6

100

M

MT

Complete

0

0

114

M

MB

Unable

0

9

140

M

MD

Complete

0

0

150

F

MB

Complete

0

4

180

M

MT

Complete

0

0

186

M

MT

Unable

0

9

216

F

Median nerve

Complete

5

10

246

F

MB

Unable

0

3

255

F

MD

Complete

0

6

800

F

MT

Unable

0

18

1300

M

MT

Partial

0

1

5000

M

MB

Unable

0

0

5000

M

Phrenic nerve

Partial

0

24

5000

  1. *Response = motor response to nerve stimulation. †MD = Deltoid muscle; ‡MB = Biceps muscle; §MT = Triceps muscle. ¶Unable = Sensory block assessment at 30 min. not possible because patient already in surgery. **NRS recovery = numerical rating scale for pain upon arrival in the recovery room; ††MEC = Minimal electrical charge necessary to evoke an appropriate motor response.