title: [Extra-ocular etiologic factors in retinal vein occlusion. Retrospective study of 24 patients].
abstract: OBJECTIVE
  Retinal vein occlusion has several causes. Cardiovascular risk factors, particularly systemic hypertension; as well as thrombophilia appear to be involved in the development of retinal vein occlusion.
  
  
  METHODS
  In a retrospective study we analyzed these factors in 24 patients, admitted for retinal vein occlusion and isovolaemic hemodilution in an internal medicine unit.
  
  
  RESULTS
  In patients over 50 years of age, cardiovascular risk factors predominate; while in patients under 50, one patient out of two has biological features indicating a risk for thrombosis.
  
  
  CONCLUSIONS
  Serological abnormalities could be involved in the physiopathology of retinal vein occlusion in young patients.
authors.affiliation: Service de médecine interne, hôpitaux universitaires de Strasbourg, France.
authors.forename: M
authors.initials: M
authors.lastname: Rondeau
authors.forename: J C
authors.initials: JC
authors.lastname: Weber
authors.forename: M
authors.initials: M
authors.lastname: Martinot
authors.forename: L
authors.initials: L
authors.lastname: Meyer
authors.forename: J
authors.initials: J
authors.lastname: Sahel
authors.forename: D
authors.initials: D
authors.lastname: Storck
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002318:Cardiovascular Diseases / Q000150:complications*; D005260:Female; D005901:Glaucoma / Q000150:complications*; D006438:Hemodilution; D006801:Humans; D006973:Hypertension / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012170:Retinal Vein Occlusion / Q000097:blood / Q000209:etiology* / Q000628:therapy; D012189:Retrospective Studies; D012307:Risk Factors; D019851:Thrombophilia / Q000150:complications*