Document Detail


Retrobulbar blood flow in idiopathic dilated episcleral veins and glaucoma.
MedLine Citation:
PMID:  17458803     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Dilated episcleral veins may occur in the presence of orbital tumors, carotid cavernous sinus fistula and other orbital obstructive lesions. HISTORY AND SIGNS: A 39-year-old man had a history of a red left eye for two years. The visual acuity was 20/20, episcleral and conjunctival veins were dilated, and both the intraocular (24 mmHg) and episcleral venous (18 mmHg) pressures were increased. The canal of Schlemm was filled with blood, and glaucomatous damage was pronounced in the optic nerve head and the visual field of the left eye. The retrobulbar blood flow in the left eye was normal in the ophthalmic and central retinal arteries, but markedly decreased in the central retinal vein. There were no signs of fistula or shunts. The right eye was without any pathology. MR and catheter angiography of the head and orbit were both normal. THERAPY AND OUTCOME: Following trabeculectomy, the intraocular and episcleral venous pressures dropped to 9 mmHg and 8 mmHg, respectively, at 6 months follow-up. The episcleral and conjunctival venous congestion regressed, and the blood flow in the central retinal vein increased. CONCLUSION: The reason for the observed clinical picture (Radius-Maumenee syndrome) and haemodynamic improvement after reduction of the intraocular pressure is not clear. We outline a hypothesis involving an increase of the vascular resistance in the vortex veins and the superior ophthalmic vein with a shift in local blood volume and vascular pressure due to high intraocular pressure.
Authors:
M C Grieshaber; B Dubler; C Knodel; H E Killer; J Flammer; S Orgül
Related Documents :
6829673 - Immediate intraocular pressure response to argon laser trabeculoplasty.
15533743 - Elevated intraocular pressure following vitreoretinal surgery.
10684773 - Role of kupffer cells in the release of nitric oxide and change of portal pressure afte...
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Klinische Monatsblätter für Augenheilkunde     Volume:  224     ISSN:  0023-2165     ISO Abbreviation:  Klin Monbl Augenheilkd     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-04-26     Completed Date:  2007-07-09     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0014133     Medline TA:  Klin Monbl Augenheilkd     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  320-3     Citation Subset:  IM    
Affiliation:
Department of Ophthalmology, University Hospital Basel, Basel, Switzerland. mgrieshaber@uhbs.ch
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Dilatation, Pathologic
Glaucoma
Humans
Male
Ophthalmic Artery / pathology*
Sclera / blood supply*,  pathology*
Scleral Diseases / diagnosis*
Veins / pathology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Uveal effusion syndrome.
Next Document:  Ultrasound biomicroscopy evaluation of angle closure in a patient with multiple and bilateral iridoc...