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Table 1 Patients characteristics and clinical outcome

From: Central modulation in cluster headache patients treated with occipital nerve stimulation: an FDG-PET study

Patients Age Cluster &
ONS side
Average number of attacks/
last 4 weeks
% reduction
in attack frequency
ONS
responder
    BEFORE
ONS
24-30 mths
ONS
24-30 mths
ONS
 
Group 1         
1 48 R 131.6 98.0 26 N
2 46 L 107.6 7.6 93 Y
3 32 R 32.4 3.2 90 Y
4 53 L 28.0 0.0 100 Y
    BEFORE
ONS
1 month
ONS
6 months
ONS
1 month
ONS
6 months
ONS
 
Group 2         
5 31 R 28.0 7.2 0.0 74 100 Y
6 60 R 28.0 7.2 2.8 74 90 Y
7 47 L 112.0 92.4 116.4 17.5 -4 N
8 50 R 42.0 4.4 0.0 80 100 Y
9 31 L 56.0 2.0 0.0 97 100 Y
10 44 L 16.4 13.2 11.2 22 33 N
  1. ONS: occipital nerve stimulation, R: right, L: left, Y: yes, N: no.