[Primary chronic daily headache: clinical factors].
Under the denomination primary chronic daily headache (CDH) there are different types of headache which present daily or near-daily, during long spells. This concept refers to temporality and not to a specific kind of headache. It is important to know the CDH and its natural history, as well as some factors that possibly turn it into chronic. They are critically reviewed here.
Hospital Universitário Antonio Pedro da Universidade Federal Fluminense (HUAP/UFF), Brasil.
C da C
Cda C
Jevoux
P F
PF
Moreira Filho
J A
JA
de Souza
D002908:Chronic Disease; D006261:Headache / Q000145:classification* / Q000175:diagnosis; D006801:Humans; D012307:Risk Factors