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Table 3 Parameters of electrodiagnostic testing between CTS and DM-CTS groups

From: The diagnostic value of ultrasonography in carpal tunnel syndrome: a comparison between diabetic and non-diabetic patients

 

CTS-hands

DM-CTS-hands

 
 

(n = 81)

(n = 59)

pvalue

Median nerve

   

  DML (ms)

5.2 ± 1.3

5.3 ± 1.2

0.35

  CMAP (mV)

8.5 ± 2.8

6.8 ± 2.7

<0.001

  MNCV (m/s)

54.6 ± 4.8

49.2 ± 5.5

<0.001

  DSL (ms)

3.4 ± 0.7

3.8 ± 1.0

0.014

  SNAP (μV)

25.5 ± 15.1

17.3 ± 12.7

0.001

  SNCV_MP (m/s)

62.1 ± 10.4

55.9 ± 12.9

0.003

  SNCV_W (m/s)

42.1 ± 7.8

38.7 ± 9.1

0.024

  SNCV_D (m/s)

20.0 ± 10.2

17.2 ± 5.6

0.116

  FW (ms)

27.0 ± 3.5

28.9 ± 3.5

0.003

  1. Abbreviations: NCV nerve conduction velocity, DML distal motor latency of median CMAP, CMAP amplitude of median CMAP, MNCV motor NCV of median CMAP, DSL distal sensory latency of median SNAP, SNAP amplitude of median SNAP, SNCV_MP sensory NCV when stimulating at the middle palms, SNCV_W sensory NCV when stimulating at the wrist, SNCV_D, velocity difference (SNCV_MP - SNCV_W) of SNCV, FW median F wave. p value was calculated by independent t-test between two groups.
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