title: [Comprehensive assessment of risk factors for retinal vein occlusion and derivation of classification criteria for retinal ischemia].
abstract: OBJECTIVE
  to perform a complex ophthalmological and general examination of patients with retinal vein occlusion (RVO) and to derive classification criteria for retinal ischemia.
  
  
  METHODS
  A total of 44 patients with RVO and macular edema and 20 controls were enrolled. All patients underwent a thorough ophthalmological and general examination and clinical laboratory testing.
  
  
  RESULTS
  Cardinal risk factors of RVO development were derived from among somatic illnesses and laboratory results. Regional hemodynamics assessment helped identify the most significant systolic and diastolic blood flow disturbances in the central retinal vein and central retinal artery circulation systems. Profound changes in electrophysiological parameters were found. Statistical analysis of the collected data allowed to identify 3 stages of retinal ischemia.
  
  
  CONCLUSIONS
  The established risk factors of RVO development, regional blood flow impairment and original classification criteria for retinal ischemia make it possible to predict the course of the disease and treatment effect.
authors.forename: A G
authors.initials: AG
authors.lastname: Shchuko
authors.forename: I V
authors.initials: IV
authors.lastname: Zlobin
authors.forename: T N
authors.initials: TN
authors.lastname: Iur'eva
authors.forename: I M
authors.initials: IM
authors.lastname: Mikhalevich
mesh_terms: D000368:Aged; D050171:Dyslipidemias / Q000453:epidemiology; D005260:Female; D006439:Hemodynamics; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D007511:Ischemia / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology; D008269:Macular Edema / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D062072:Patient Acuity; D011379:Prognosis; D012044:Regression Analysis; D012160:Retina / Q000473:pathology / Q000503:physiopathology; D012170:Retinal Vein Occlusion / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology; D012171:Retinal Vessels / Q000000981:diagnostic imaging*; D018570:Risk Assessment; D012307:Risk Factors; D018615:Ultrasonography, Doppler, Color / Q000379:methods