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The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 3 Nerve conduction parameters prior to and following treatment

From: Repetitive TMS in treatment of resistant diabetic neuropathic pain

Characteristic

Pre-treatment

Post-treatment

p

Insulin-dependent (group A)

 Right tibial nerve, mean (SD)

  Latency, ms

4.98 (1.57)

4.54 (1.20)

0.035*

  Conduction velocity, m/sec

37.49 (5.81)

42.71 (4.56)

0.005**

 Left tibial nerve, mean (SD)

  Amplitude, mV

3.69 (2.33)

4.41 (2.25)

0.007**

  Conduction velocity, m/sec

37.40 (8.55)

41.96 (6.99)

0.028*

 Right peroneal, mean (SD)

  Latency, ms

4.77 (1.05)

4.48 (1.10)

0.028*

  Conduction velocity, m/sec

37.96 (5.66)

41.90 (4.55)

0.008**

 Right motor ulnar nerve, mean (SD)

  Conduction velocity, m/sec

51.11 (5.15)

54.10 (4.72)

0.005**

 Left motor ulnar nerve, mean (SD)

  Latency, ms

3.17 (0.56)

2.79 (0.47)

0.028*

 Right sensory ulnar nerve, mean (SD)

  Latency, ms

3.68 (0.39)

3.30 (0.49)

0.012*

  Conduction velocity, m/sec

37.45 (3.78)

42.32 (7.37)

0.012*

 Left sensory ulnar nerve, mean (SD)

  Latency, ms

3.36 (0.27)

2.94 (0.29)

0.042*

  Amplitude, μV

7.16 (4.83)

11.58 (6.22)

0.043*

  Conduction velocity, m/sec

42.26 (6.34)

47.24 (11.81)

0.043*

 Upper limb F-wave latency, mean (SD), ms

37.39 (6.57)

35.51 (6.96)

0.034*

 Lower limb F-wave latency, mean (SD), ms

57.34 (6.95)

54.34 (7.17)

0.043*

Non-insulin-dependent (group B)

 Right tibial nerve, mean (SD)

  Latency, ms

5.93 (2.98)

5.22 (2.08)

0.02*

 Left tibial nerve, (SD)

  Conduction velocity, m/sec

38.96 (5.28)

42.23 (6.37)

0.005**

 Right peroneal nerve, mean (SD)

  Conduction velocity, m/sec

40.77 (4.83)

42.49 (3.72)

0.074

 Right ulnar (motor) nerve, mean (SD)

  Latency, ms

3.41 (1.01)

2.91 (1.18)

0.007**

 Left ulnar (motor) nerve, mean (SD)

  Latency, ms

3.56 (1.08)

3.04 (1.10)

0.007**

  Amplitude, mV

5.21 (3.60)

5.93 (3.21)

0.047*

 Left ulnar (sensory) nerve, mean (SD)

  Latency, ms

3.04 (0.20)

2.74 (0.38)

0.027*

 Lower limb F-wave latency, mean (SD)

53.89 (6.73)

51.84 (6.89)

0.018*

  1. *Significant p value at < 0.05
  2. **Highly significant p value at < 0.01
  3. p probability, SD standard deviation, ms milliseconds, m/sec meter/second, μV microvolt, mV millivolt
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