title: [Aura-related symptoms associated with cluster headache: outcomes of a LUCA substudy].
abstract: OBJECTIVE
  To describe the prevalence of aura in a Dutch cluster headache (CH) population.
  
  
  METHODS
  Cross-sectional, epidemiological study.
  
  
  METHODS
  As part of a large-scale study into headaches conducted in Leiden (the Netherlands), patients experiencing headaches were identified by means of questionnaires on a headache website. One group of patients with CH was approached by telephone and an interview on aura-related symptoms was performed by means of a standardized questionnaire. The presence of migraine co-morbidity was also investigated.
  
  
  RESULTS
  Of the interviewed CH patients, 22 out of 244 (9.0%) had aura-related symptoms preceding a CH attack, which were predominantly visual in nature. The majority (72.7%) of these patients did not have migraine co-morbidity.
  
  
  CONCLUSIONS
  Aura-related symptoms can occur in CH without migraine co-morbidity. In clinical practice, it should be taken into account that the presence of an aura does not always indicate migraine.
authors.affiliation: LUMC, Afd. Neurologie, Leiden, the Netherlands. l.a.wilbrink@lumc.nl
authors.forename: L A
authors.initials: LA
authors.lastname: Wilbrink
authors.forename: Carlo
authors.initials: C
authors.lastname: Cheung
authors.forename: Claudia  M
authors.initials: C
authors.lastname: Weller
authors.forename: Michel  D
authors.initials: M
authors.lastname: Ferrari
authors.forename: Joost
authors.initials: J
authors.lastname: Haan
mesh_terms: D003027:Cluster Headache / Q000453:epidemiology*; D015897:Comorbidity; D003430:Cross-Sectional Studies; D004827:Epilepsy; D006212:Hallucinations / Q000453:epidemiology*; D006801:Humans; D020325:Migraine with Aura / Q000453:epidemiology*; D020326:Migraine without Aura / Q000453:epidemiology*; D015995:Prevalence; D011795:Surveys and Questionnaires