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Table 2 Comparison of the preoperative and postoperative grading scale scores of the non-improvement group

From: Clinical predictors of surgical outcomes of severe carpal tunnel syndrome patients: utility of palmar stimulation in a nerve conduction study

Patient

age (y) and sex

Preoperative score

Preoperative wrist amp

CMAP (mV)/SNAP (μV)

Preoperative palmar amp

CMAP (mV)/SNAP

(μV)

Postoperative score

74, M

5

0.38/null

0.36/null

5

81, M

6

null/null

null/null

5

81, M

6

null/null

null/4.5

5

62, F

6

null/null

1.8/null

6

61, F

6

0.09/null

2.8/null

5

91, F

6

null/null

null/null

6

68, M

6

null/null

3.6/null

6

55, M

6

1.7/null

2.2/null

5

55, M

6

3.3/null

5.1/null

5

59, M

5

1.2/null

2.3/null

5

60, F

6

null/null

6.0/null

6

  1. M Male, F Female, mV Millivolts, μV Microvolts, amp Amplitude, CMAP Compound muscle action potential, SNAP Sensory nerve action potential