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Table 3 Comparison of motor nerve conduction variables in hypothyroid dogs and healthy controls before and after treatment

From: Electrodiagnostic studies in presumptive primary hypothyroidism and polyneuropathy in dogs with reevaluation during hormone replacement therapy

Group parameter

Group A (hypothyroid) [n = 24]

Group B (control) [n = 10]

P value

Group A1 before THRT [n = 11]

Group A1 after THRT [n = 11]

P value

MNCV prox-dist [m/s]

44.2 ± 7.6

65.4 ± 2.5

<0.05

38.2 ± 6.9

45.7 ± 6.2

<0.05

MNCV mid-dist [m/s]

40.1 ± 7.3

60.8 ± 2.2

<0.05

34.5 ± 7.1

36.2 ± 6.3

0.57

Latency prox [ms]

9.2 ± 1.7

7.8 ± 0.4

0.31

Latency mid [ms]

7.1 ± 1.6

5.8 ± 0.3

0.25

Latency dist [ms]

6.1 ± 1.1

3.0 ± 0.4

<0.05

5.6 ± 1.1

5.5 ± 1.2

0.89

Amplitude prox [mV]

5.7 ± 2.3

10.2 ± 1.2

<0.05

4.5 ± 1.1

7.6 ± 1.3

<0.05

Amplitude mid [mV]

6.3 ± 2.3

12.4 ± 2.3

<0.05

5.6 ± 1.6

8.8 ± 1.6

<0.05

Amplitude dist [mV]

7.7 ± 1.5

14.1 ± 2.5

<0.05

7.4 ± 1.2

11.0 ± 1.4

<0.05

Duration prox [ms]

9.2 ± 2.7

4.7 ± 0.5

<0.05

11.2 ± 2.6

9.9 ± 2.1

0.2

Duration mid [ms]

9.1 ± 2.1

4.9 ± 0.6

<0.05

10.7 ± 2.0

9.7 ± 1.6

0.19

Duration dist [ms]

8.7 ± 2.5

4.2 ± 0.7

<0.05

9.9 ± 2.0

9.3 ± 1.9

0.45

  1. Statistically significant differences are indicated in italics. THRT thyroid hormone replacement therapy