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Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization
Recent studies do not support the hypothesis of vascular normalization in the eyes receiving various types of intravitreous antivascular endothelial growth factor (VEGF). This retrospective study considered 57 eyes of 32 patients with vascular age-related macular degeneration (AMD) undergoing aflibe...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5925136/ https://www.ncbi.nlm.nih.gov/pubmed/29850003 http://dx.doi.org/10.1155/2018/8595278 |
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author | Wylęgała, Adam Wylęgała, Filip Wylęgała, Edward |
author_facet | Wylęgała, Adam Wylęgała, Filip Wylęgała, Edward |
author_sort | Wylęgała, Adam |
collection | PubMed |
description | Recent studies do not support the hypothesis of vascular normalization in the eyes receiving various types of intravitreous antivascular endothelial growth factor (VEGF). This retrospective study considered 57 eyes of 32 patients with vascular age-related macular degeneration (AMD) undergoing aflibercept treatment. In this study, we measured the vessel density, Horton-Strahler (HS) ramification ratio (complexity), and the length ratio in 14 eyes with choroidal neovascularization treated with 3–5 Eylea injections, 17 eyes receiving 1-2 injections, and 14 treatment-naïve eyes to the use of swept source optical coherence tomography angiography (OCTA). Macular 6 × 6 mm scans were acquired using the DRI OCT Triton by a single trained technician. OCTA images were standardized, binarized, and skeletonized using ImageJ. Then, the HS analysis of the CNV was performed. Our data suggest that the vascular density significantly decreases after an anti-VEGF injection 36 and 93 versus 41 and 87 in treatment-naïve patients. Moreover, CNV before the treatment and in a group with 3–5 injections was more complex than after receiving 1-2 injections. The branch length was not changed. Repeated anti-VEGF can lead to vascular abnormalization and further research is needed to confirm the results of this study. |
format | Online Article Text |
id | pubmed-5925136 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-59251362018-05-30 Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization Wylęgała, Adam Wylęgała, Filip Wylęgała, Edward J Healthc Eng Research Article Recent studies do not support the hypothesis of vascular normalization in the eyes receiving various types of intravitreous antivascular endothelial growth factor (VEGF). This retrospective study considered 57 eyes of 32 patients with vascular age-related macular degeneration (AMD) undergoing aflibercept treatment. In this study, we measured the vessel density, Horton-Strahler (HS) ramification ratio (complexity), and the length ratio in 14 eyes with choroidal neovascularization treated with 3–5 Eylea injections, 17 eyes receiving 1-2 injections, and 14 treatment-naïve eyes to the use of swept source optical coherence tomography angiography (OCTA). Macular 6 × 6 mm scans were acquired using the DRI OCT Triton by a single trained technician. OCTA images were standardized, binarized, and skeletonized using ImageJ. Then, the HS analysis of the CNV was performed. Our data suggest that the vascular density significantly decreases after an anti-VEGF injection 36 and 93 versus 41 and 87 in treatment-naïve patients. Moreover, CNV before the treatment and in a group with 3–5 injections was more complex than after receiving 1-2 injections. The branch length was not changed. Repeated anti-VEGF can lead to vascular abnormalization and further research is needed to confirm the results of this study. Hindawi 2018-04-12 /pmc/articles/PMC5925136/ /pubmed/29850003 http://dx.doi.org/10.1155/2018/8595278 Text en Copyright © 2018 Adam Wylęgała et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Wylęgała, Adam Wylęgała, Filip Wylęgała, Edward Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization |
title | Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization |
title_full | Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization |
title_fullStr | Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization |
title_full_unstemmed | Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization |
title_short | Aflibercept Treatment Leads to Vascular Abnormalization of the Choroidal Neovascularization |
title_sort | aflibercept treatment leads to vascular abnormalization of the choroidal neovascularization |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5925136/ https://www.ncbi.nlm.nih.gov/pubmed/29850003 http://dx.doi.org/10.1155/2018/8595278 |
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