Acute uveitic phase of Vogt-Koyanagi-Harada disease: optic nerve head swelling, ocular blood flow and retinal oxygen metabolism.

Autor: Abu El-Asrar AM; Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia. abuelasrar@yahoo.com.; Dr. Nasser Al-Rashid Research Chair in Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia. abuelasrar@yahoo.com., AlBloushi AF; Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia., Gikandi PW; Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia., Alzubaidi A; Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia., Stefánsson E; Department of Ophthalmology and Physiology, University of Iceland, Reykjavik, Iceland.
Jazyk: angličtina
Zdroj: Eye (London, England) [Eye (Lond)] 2023 May; Vol. 37 (7), pp. 1432-1438. Date of Electronic Publication: 2022 Jun 29.
DOI: 10.1038/s41433-022-02141-z
Abstrakt: Objectives: To investigate the association of optic nerve head (ONH) swelling in the acute uveitic phase of Vogt-Koyanagi-Harada (VKH) disease with blood flow velocity in the choroid and ONH and oxygen saturation and diameter of retinal vessels.
Methods: In this prospective study, 25 patients (50 eyes) were studied. Thirteen patients (26 eyes) had ONH swelling and 12 patients (24 eyes) had no ONH swelling. Laser speckle flowgraphy (LSFG) and retinal oximetry measurements were performed at presentation.
Results: In the ONH, mean blur rate (MBR)-vessel, representing blood flow velocity in retinal vessels, was significantly lower in the eyes affected by ONH swelling, while choroidal MBR was not significantly different. Eyes with ONH swelling had a significantly lower oxygen saturation in retinal venules, a significantly higher arteriovenous oxygen saturation difference and a significantly smaller calibre of retinal arterioles compared with eyes without ONH swelling. There were significant positive correlations between the MBR-vessel of the ONH and venular oxygen saturation and calibre of retinal arterioles. In addition, MBR-vessel of the ONH had a significant negative correlation with arteriovenous oxygen saturation difference.
Conclusions: The occurrence of ONH swelling in the acute uveitic phase of VKH disease is associated with lower retinal blood flow velocity and smaller calibre of retinal arterioles as well as lower oxygen saturation in retinal venules and higher arteriovenous difference in oxygen saturation.
(© 2022. The Author(s), under exclusive licence to The Royal College of Ophthalmologists.)
Databáze: MEDLINE
Externí odkaz: