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Table 6 Somatosensory-evoked potential at different time points (mean ± SD)

From: Effects of Dexmedetomidine on motor- and somatosensory-evoked potentials in patients with thoracic spinal cord tumor: a randomized controlled trial

Group

Measurement

T1

T2

T3

T4

Propofol group (n = 25)

ULA (uv)

2.0 ± 0.9

1.9 ± 0.7

1.8 ± 0.9

2.1 ± 1.0

ULL (ms)

20.1 ± 0.8

20.3 ± 1.2

20.5 ± 1.4

20.6 ± 1.5

URA (uv)

2.4 ± 1.4

2.1 ± 1.1

2.3 ± 1.3

1.9 ± 1.1

URL (ms)

20.2 ± 1.4

20.2 ± 1.3

20.5 ± 1.3

20.6 ± 1.6

LLA(uv)

1.1 ± 1.1

1.0 ± 0.9

1.1 ± 0.8

1.1 ± 0.9

LLL (ms)

39.6 ± 4.0

40.1 ± 4.2

40.2 ± 4.3

39.8 ± 4.6

LRA(uv)

1.3 ± 1.2

1.6 ± 2.2

1.0 ± 1.0

0.8 ± 0.9

LRL (ms)

40.8 ± 4.6

40.7 ± 4.5

40.9 ± 4.5

40.7 ± 4.7

DP adjusted group (n = 23)

ULA (uv)

2.0 ± 1.1

2.1 ± 1.1

2.0 ± 1.1

2.0 ± 1.1

ULL (ms)

19.2 ± 1.5

19.4 ± 1.6

19.7 ± 1.6

19.7 ± 1.7

URA (uv)

2.1 ± 1.4

2.1 ± 1.3

2.3 ± 1.2

2.3 ± 1.3

URL (ms)

19.8 ± 1.8

19.8 ± 1.5

20.0 ± 1.5

19.9 ± 1.5

LLA(uv)

1.5 ± 1.5

1.5 ± 1.6

1.8 ± 2.0

1.5 ± 1.2

LLL(ms)

39.7 ± 4.4

40.4 ± 4.1

40.9 ± 4.8

41.2 ± 4.1

LRA(uv)

1.4 ± 1.6

1.6 ± 1.8

1.6 ± 2.0

1.5 ± 1.8

LRL (ms)

38.8 ± 3.8

40.0 ± 3.3

40.1 ± 3.2

39.6 ± 2.4

DP unadjusted group (n = 23)

ULA (uv)

1.6 ± 1.0

1.7 ± 1.0

1.7 ± 1.1

1.8 ± 1.1

ULL (ms)

19.2 ± 2.1

19.4 ± 2.2

19.6 ± 2.4

19.2 ± 3.1

URA(uv)

1.6 ± 1.0

1.7 ± 0.9

1.5 ± 0.9

1.6 ± 0.8

URL(ms)

19.8 ± 2.7

20.1 ± 2.6

20.3 ± 2.3

20.1 ± 2.7

LLA(uv)

1.1 ± 1.0

0.9 ± 0.7

1.2 ± 1.0

1.3 ± 1.0

LLL(ms)

39.8 ± 4.3

39.9 ± 3.9

40.6 ± 4.1

41.0 ± 4.3

LRA(uv)

1.0 ± 0.7

0.7 ± 0.4

1.1 ± 0.7

1.3 ± 1.0

LRL (ms)

39.8 ± 4.1

40.2 ± 4.1

41.3 ± 4.5

41.1 ± 4.3

  1. ULA amplitude of left upper limb, ULL latency of left upper limb, URA amplitude of right upper limb, URL latency of right upper limb, LLA amplitude of left lower limb, LLL latency of left lower limb, LRA amplitude of right lower limb, LRL latency of right lower limb
  2. P: comparison with propofol group