Table 1 Diagnostic criteria for sleep apnoea headache according to the ICHD-2 (code 10.1.3) and the percentage of OSAS patients
Diagnostic criteria | Morning headache (n = 48) |
|---|---|
A. Recurrent headache with at least one of the following characteristics and fulfilling criteria C and D (sleep apnoea headache): | n = 29 (60.4 %) |
1. occurs on > 15 days per month | n =12 (25.0 %) |
2. bilateral, pressing quality and not accompanied by nausea, photophobia or phonophobia | n = 20 (41.7 %) |
3. each headache resolves within 30 min | n = 15 (31.3 %) |
B. Sleep apnoea (Respiratory Disturbance Index ≥ 5) demonstrated by overnight polysomnography | n = 48 (100 %) |
C. Headache is present upon awakening | n = 48 (100 %) |
D. Headache ceases within 72 h and does not recur after effective treatment of sleep apnoea | n = 39 (81.3 %) |