Table 2 Demographic data
From: Long-term outcomes of occipital nerve stimulation for chronic migraine: a cohort of 53 patients
Age | |
|---|---|
 Mean (SD) | 47.75 years (±11.48) |
 Range | 26–70 years |
Sex | |
 Male | 16 (30.2 %) |
 Female | 37 (69.8 %) |
Laterality | |
 Unilateral | 33 (62.3 %) |
 Bilateral | 20 (37.7 %) |
Aura | 28 (52.9Â %) |
 Visual | 22 (41.5 %) |
 Sensory | 15 (28.3 %) |
 Hemiplegic | 6 (11.3 %) |
 Speech | 5 (9.4 %) |
Duration from onset of migraine | |
 Mean (SD) | 31.51 years (±14.52) |
 Range | 5–58 years |
Duration from onset of Chronic Migraine | |
 Mean (SD) | 11.77 years (±10.90) |
 Range | 3–48 years |
Co-existent headache types | 18 (33.9Â %) |
 Chronic cluster headache | 10 (18.7 %) |
 SUNCT/SUNA | 5 (9.4 %) |
 Chronic cluster headache + SUNCT/SUNA | 2 (3.8 %) |
 SUNCT/SUNA + hemicrania continua | 1 (1.9 %) |
Number of headache types | |
 1 | 35 (66.0 %) |
 2 | 15 (28.3 %) |
 3 | 3 (5.7 %) |
Monthly days of acute medication | |
 Mean (SD) | 11.77 (±10.34) |
 Range | 0–30 |
Medication overuse at implant | 20 (37.7Â %) |
Mean number of preventatives prior to ONS | |
 Mean (SD) | 9.36 (±2.61) |
 Range | 4–19 |
Prior response to GON block | 12 (22.6Â %) |
Follow up since ONS implant | |
 Median | 42.00 months |
 Mean (SD) | 46.79 months (±21.70) |
 Range | 6–97 months |