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Japanese

Arteriovenous shunt at arteriovenous crossing in the retina Takayuki Tanaka 1 , Kanemitsu Muraoka 1 , Kenji Tokui 1 1Dept of Ophthalmol, Gunma Univ Sch of Med pp.1711-1721
Published Date 1992/12/15
DOI https://doi.org/10.11477/mf.1410901415
  • Abstract
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We reviewed fluorescein angiograms in 1,885 eyes with various occlusive retinal vascular dis-eases to detect arteriovenous shunt at arter-iovenous crossings. We could identify arteriovenous shunt in diabetic retinopathy 8 eyes, branch retinal vein occlusion 28 eyes, central retinal vein occlu-sion 2 eyes and miliary angiomatosis of Leber 2 eyes. Fluorescent dye flowed from artery into vein at the site of shunting manifesting either axial flow or laminar flow pattern. The findings seemed to indicate that shunting at arteriovenous crossings may occur in various retinal vascular diseases other than pulseless disease. We postulate that arter- iovenous shunting is one of the basic patterns of vascular reaction in the retina in the presence of persistent vasodilatation and increased permeabil-ity.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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