Autoregulation du débit sanguin du nerf optique chez l'homme [Autoregulation in ischemia of the optic nerve in the human]

Details

Serval ID
serval:BIB_2358
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Autoregulation du débit sanguin du nerf optique chez l'homme [Autoregulation in ischemia of the optic nerve in the human]
Journal
Klinische Monatsblätter für Augenheilkunde
Author(s)
Titzé P., Hero M., Petrig B.L., Cranstoun S.D., Riva C.E.
ISSN
0023-2165
Publication state
Published
Issued date
1997
Volume
210
Number
5
Pages
308-309
Language
french
Notes
Publication types: English Abstract ; Journal Article ; Research Support, Non-U.S. Gov't
Abstract
BACKGROUND: Autoregulation is defined as the maintenance of constant blood flow in a vascular system in spite of changes in perfusion pressure (PPm). MATERIALS AND METHODS: PPm was decreased by increasing the intraocular pressure (IOP) with a suction cup and optic nerve blood flow was measured with the laser Doppler flowmetry technique (LDF) in 9 normal volunteers. RESULTS: The blood flow was autoregulated down to a PPm of 13 mm Hg (IOP = 47 mm Hg). CONCLUSIONS: These results confirm previous studies in cats and monkeys. The mechanism of autoregulation is probably a decrease in resistance due to capillary recruitment.
Keywords
Adult, Capillary Resistance/physiology, Homeostasis/physiology, Humans, Intraocular Pressure/physiology, Ischemia/physiopathology, Laser-Doppler Flowmetry, Male, Middle Aged, Optic Nerve/blood supply, Reference Values
Pubmed
Web of science
Create date
19/11/2007 12:19
Last modification date
20/08/2019 13:01
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