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Atherosclerotic and thrombophilic risk factors in patients with ischemic central retinal vein occlusion

Andrea Sodi1, Barbara Giambene, Rossella Marcucci

  • 1Eye Clinic, University of Florence, Florence, Italy.

Retina (Philadelphia, Pa.)
|December 24, 2010
PubMed

Insights

Atherosclerotic and thrombophilic factors like hypertension and high factor VIII increase ischemic central retinal vein occlusion (CRVO) risk. Low folic acid also elevates the likelihood of this vision-threatening condition.

Area of Science:

  • Ophthalmology
  • Vascular Medicine
  • Hematology

Background:

  • Central retinal vein occlusion (CRVO) is a significant cause of vision loss.
  • Understanding risk factors for ischemic CRVO is crucial for timely intervention and prevention.
  • Both atherosclerotic and thrombophilic factors are implicated in vascular occlusive diseases.

Purpose of the Study:

  • To investigate atherosclerotic and thrombophilic risk factors in patients with acute central retinal vein occlusions (CRVOs).
  • To differentiate risk factors between ischemic and nonischemic forms of CRVO.

Main Methods:

  • A cohort of 103 patients with acute unilateral CRVO (41 ischemic, 62 nonischemic) was studied.
  • Assessment of traditional cardiovascular risk factors and plasma levels of thrombophilic markers.
  • Univariate logistic regression analysis to identify risk factors for ischemic CRVO.

Main Results:

  • Arterial hypertension, hypercholesterolemia, postmethionine hyperhomocysteinemia (HHcy), elevated factor VIII, and reduced folic acid and B6 levels were significantly more frequent in ischemic CRVO patients.
  • Independent risk factors for ischemic CRVO included arterial hypertension, hypercholesterolemia, reduced folic acid, and elevated factor VIII.
  • Postmethionine HHcy was strongly associated with low folic acid levels.

Conclusions:

  • Atherosclerotic factors such as hypertension and hypercholesterolemia are associated with an increased risk of ischemic CRVO.
  • Thrombophilic factors, particularly elevated factor VIII and low folic acid levels, significantly contribute to the risk of ischemic CRVO.
  • These findings highlight the importance of evaluating both atherosclerotic and thrombophilic profiles in patients with CRVO.
Abstract

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