title: Joint hypermobility and headache: understanding the glue that binds the two together--part 1.
abstract: BACKGROUND
  Heritable connective tissue disorders (HCTD) present with a wide array of findings, including headache. Because of their unusual substrate, headaches in HCTD can derive from both common and uncommon circumstances.
  
  
  METHODS
  Literature review.
  
  
  RESULTS
  Ehlers-Danlos hypermobile type can be recognized by multiple joint findings and its tendency to progress to a multisystem chronic pain syndrome. Ehlers-Danlos classic type also manifests joint laxity and similar pain complaints, but is differentiated by its skin laxity and fragility. Ehlers-Danlos vascular type presents the most severe risk due to blood vessel and hollow organ rupture. Marfan syndrome demonstrates skeletal abnormalities, lens dislocations, and aortic root dilation that can result in dissection.
  
  
  CONCLUSIONS
  In a headache patient, recognizing the presence of an HCTD improves the strategy for diagnosis and management. A brief review of findings related to joints, skin, and arteries may prompt further investigation into the HCTDs.
authors.affiliation: Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
authors.forename: Derek
authors.initials: D
authors.lastname: Neilson
authors.forename: Vincent T
authors.initials: VT
authors.lastname: Martin
mesh_terms: D003240:Connective Tissue Diseases / Q000150:complications / Q000175:diagnosis; D004535:Ehlers-Danlos Syndrome / Q000150:complications* / Q000175:diagnosis; D006261:Headache / Q000209:etiology*; D006801:Humans; D007593:Joint Instability / Q000150:complications* / Q000175:diagnosis; D008382:Marfan Syndrome / Q000150:complications* / Q000175:diagnosis
keywords: Ehlers-Danlos syndrome; Marfan syndrome; connective tissue disorder; headache; joint hypermobility syndrome; migraine