丸子 一朗
   Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine
   Position   Associate Professor
Article types Original article
Language English
Peer review Peer reviewed
Title Blood flow pattern in eye before development of type 3 macular neovascularization.
Journal Formal name:PloS one
Abbreviation:PLoS One
ISSN code:19326203/19326203
Domestic / ForeginForegin
Volume, Issue, Page 18(3),pp.e0283202
Author and coauthor Yamaguchi Saya, Maruko Ichiro, Maruko Ruka, Hasegawa Taiji, Iida Tomohiro
Publication date 2023
Summary PURPOSE:To determine the blood flow pattern of eyes before the development of type 3 macular neovascularization (MNV) by optical coherence tomography angiography (OCTA).STUDY DESIGN:Retrospective study.SUBJECTS:Ten eyes of 10 patients (4 men and 6 women, mean age 80.4 years) diagnosed with unilateral Type 3 MNV who developed type 3 MNV in the fellow normal eye during the follow-up period were studied.METHODS:The time of onset of type 3 MNV was defined as the time when retinal exudation was detected by OCT. The blood flow of a 3 x 3 mm or 6 x 6 mm area in the deep capillary plexus (DCP) and the outer retina (OR) including the central fovea were assessed at the onset and at 6 months prior to the onset of the type 3 MNV.RESULTS:All MNVs that developed in the fellow eye were type 3 MNVs. Abnormal blood flow signals in the MNVs were detected in the DCP and/or the OR by OCTA at the onset in all cases. Eight of the 10 eyes had OCTA recordings prior to the development of the MNV: 3 eyes had non-exudative MNVs only in the DCP and 5 eyes had non-exudative MNVs in the DCP and OR. The exudation appeared on the average 3.5 months after the non-exudative MNV was observed in the fellow eyes.CONCLUSIONS:A non-exudative MNV in the fellow eyes can already be observed by OCTA in eyes before the onset of the exudation. Knowing this will help clinicians not only how to treat these eyes appropriately but will also help in determining the origin of the MNV.
DOI 10.1371/journal.pone.0283202
PMID 36928265