Headache continuum: concept and supporting evidence from recent study of chronic daily headache.
A headache continuum on the basis of the dynamic nature of headache is presented, with episodic headaches developing into daily headaches and vice versa. The concept is supported by evidence from recent study of (gradual-onset) chronic daily headache.
Spierings
E L
EL
Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA. Spierings@MediaOne.net
D002908:Chronic Disease; D002940:Circadian Rhythm; D006261:Headache / Q000503:physiopathology*; D006801:Humans