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Table 1 Nociception specific blink reflex variables at baseline and during high flow oxygen inhalation (12 L/min)

From: High-flow oxygen therapy in cluster headache patients has no significant effect on nociception specific blink reflex parameters: a pilot study

Nociception specific blink reflex variable

Baseline

During high flow oxygen inhalation

 
 

Mean (SD)a

Mean (SD)a

p-value

R2 latency, symptomatic side (ms)

   

 Ipsilateral stimulation

44.95 (5.65)

47.09 (6.29)

0.225

 Contralateral stimulation

48.75 (6.53)

50.56 (6.03)

0.392

Shortest R2 latency, symptomatic side (ms)

   

 Ipsilateral stimulation

39.05 (6.55)

43.37 (6.19)

0.025

 Contralateral stimulation

44.12 (6.69)

44.65 (4.16)

0.789

R2 amplitude, symptomatic side (mV)

   

 Ipsilateral stimulation

0.27 (0.10)

0.25 (0.08)

0.387

 Contralateral stimulation

0.19 (0.07)

0.17 (0.07)

0.235

R2 duration, symptomatic side (ms)

   

 Ipsilateral stimulation

52.63 (14.39)

50.36 (13.65)

0.263

 Contralateral stimulation

47.74 (19.17)

45.74 (14.27)

0.381

R2 area, symptomatic side (mVms)

   

 Ipsilateral stimulation

2.28 (1.03)

2.04 (0.94)

0.202

 Contralateral stimulation

1.57 (0.78)

1.25 (0.47)

0.132

R2 latency, asymptomatic side (ms)

   

 Ipsilateral stimulation

47.62 (10.60)

46.01 (8.96)

0.223

 Contralateral stimulation

49.93 (9.44)

48.85 (7.51)

0.418

Shortest R2 latency, asymptomatic side (ms)

   

 Ipsilateral stimulation

42.92 (10.73)

40.18 (9.40)

0.086

 Contralateral stimulation

44.17 (10.21)

42.58 (8.51)

0.484

R2 amplitude, asymptomatic side (mV)

   

 Ipsilateral stimulation

0.32 (0.15)

0.27 (0.11)

0.100

 Contralateral stimulation

0.19 (0.09)

0.16 (0.09)

0.174

R2 duration, asymptomatic side (ms)

   

 Ipsilateral stimulation

49.29 (19.30)

53.80 (16.54)

0.216

 Contralateral stimulation

47.97 (18.11)

49.50 (16.53)

0.394

R2 area, asymptomatic side (mVms)

   

 Ipsilateral stimulation

2.40 (1.13)

2.26 (0.86)

0.544

 Contralateral stimulation

1.61 (0.82)

1.32 (0.64)

0.068

  1. aAll variables were normally distributed
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The Journal of Headache and Pain

ISSN: 1129-2377

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