Japanese Journal of Ophthalmology

, Volume 50, Issue 4, pp 312–317 | Cite as

Correlation Between Higher Blood Flow Velocity in the Central Retinal Vein than in the Central Retinal Artery and Severity of Nonproliferative Diabetic Retinopathy

  • Sayuri Fujioka
  • Kaoruko Karashima
  • Norikiyo Nishikawa
  • Yoshihiro Saito
LABORATORY INVESTIGATION

Abstract

Purpose

To assess the correlation between a higher blood flow velocity in the central retinal vein (CRV) than in the central retinal artery (CRA) and the severity of nonproliferative diabetic retinopathy (non-PDR).

Methods

We evaluated both eyes of 20 non-PDR patients with higher peak systolic velocity (PSV) in the CRV than in the CRA unilaterally as determined by color Doppler imaging (CDI). The eyes with higher PSV in the CRV were placed in group D2-H, and the fellow eyes were placed in group D2-L. The stage of non-PDR was determined by the guidelines of the Early Treatment Diabetic Retinopathy Study. Normal subjects and non-PDR patients without higher PSV in the CRV were evaluated as CDI controls.

Results

Advanced non-PDR (P = 0.001) and cystoid macular edema (P = 0.02) were statistically more frequent in group D2-H. The velocities in the ophthalmic artery and the short posterior ciliary artery were not statistically different among all groups. The velocities in the CRA were similar in all non-PDR groups and significantly lower than in the normal subjects (P < 0.05). The velocities in the CRV were significantly higher only in group D2-H (P < 0.001).

Conclusion

Higher PSV in the CRV than in the CRA was significantly correlated with the severity of non-PDR, especially in the presence of cystoid macular edema. Jpn J Ophthalmol 2006;50:312–317 © Japanese Ophthalmological Society 2006

Key words

color Doppler imaging cystoid macular edema Early Treatment Diabetic Retinopathy Study higher blood flow velocity nonproliferative diabetic retinopathy 

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Copyright information

© Japanese Ophthalmological Society 2006

Authors and Affiliations

  • Sayuri Fujioka
    • 1
  • Kaoruko Karashima
    • 1
  • Norikiyo Nishikawa
    • 2
  • Yoshihiro Saito
    • 3
  1. 1.Department of OphthalmologyOsaka Medical Center for Cancer and Cardiovascular DiseasesOsakaJapan
  2. 2.Department of OphthalmologyOsaka Police HospitalOsakaJapan
  3. 3.Department of OphthalmologyOsaka National HospitalOsakaJapan

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