Side locked headaches

Methods Data were prospectively collected from 975 eligible patients (554 females; 583 Caucasians; age range = 4.5-18.1 years) with headaches. Patients were included only if they were > 4 years old and had suffered headache course for > 6 months and or 5 separate headache attacks. We have adopted previous descriptions of terms for anatomical sites for location [1]. Side locked unilateral headache (SLUH) is defined as a headache that is for all time fixed unilaterally and never changed side. Headache diagnosis was made on the basis of ICHD – II, 2004 [2]. Headache diagnosis included migraine (n=585); tension type headaches (n= 234); other headache types (n=91) and remained unclassified in 65 (7%) patients.