Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularization

Abstract This study aimed to compare 24-month treatment outcomes between patients with type 3 macular neovascularization (MNV) treated using an as-needed regimen and those who switched to treat-and-extend (TAE). This retrospective study included 32 patients who were initially treated with an as-need...

Full description

Bibliographic Details
Main Authors: Jae Hui Kim, Jong Woo Kim, Chul Gu Kim
Format: Article
Language:English
Published: Nature Portfolio 2022-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-25860-5
_version_ 1797973736981266432
author Jae Hui Kim
Jong Woo Kim
Chul Gu Kim
author_facet Jae Hui Kim
Jong Woo Kim
Chul Gu Kim
author_sort Jae Hui Kim
collection DOAJ
description Abstract This study aimed to compare 24-month treatment outcomes between patients with type 3 macular neovascularization (MNV) treated using an as-needed regimen and those who switched to treat-and-extend (TAE). This retrospective study included 32 patients who were initially treated with an as-needed regimen but switched to TAE (TAE group) and 74 patients who were treated with an as-needed regimen throughout the follow-up period (as-needed group). The number of anti-vascular endothelial growth factor (VEGF) injections and degree of change in best-corrected visual acuity (BCVA) over 24 months were compared between the two groups. The incidence of fibrotic scarring, tears of the retinal pigment epithelium (RPE), and subretinal hemorrhage was also evaluated. The number of anti-VEGF injections was higher in the TAE group (mean: 11.7) than in the as-needed group (mean: 6.9; P < 0.001). The BCVA outcome (measured using the mean logarithm of the minimal angle of resolution [logMAR]) was significantly better in the TAE group (mean improvement of logMAR 0.15) than in the as-needed group (mean deterioration of logMAR 0.15). The incidence of fibrotic scarring (6.3% vs. 18.9%), RPE tears (3.1% vs. 6.8%), and subretinal hemorrhage (0% vs. 9.5%) was relatively lower in the TAE group. Treatment outcomes of the TAE group were better than those of the as-needed group, suggesting that switching to the TAE regimen would be a useful approach for patients with type 3 MNV requiring efficient treatment.
first_indexed 2024-04-11T04:07:47Z
format Article
id doaj.art-ccc166ac79a0479ca200525ba108dcb2
institution Directory Open Access Journal
issn 2045-2322
language English
last_indexed 2024-04-11T04:07:47Z
publishDate 2022-12-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj.art-ccc166ac79a0479ca200525ba108dcb22023-01-01T12:16:36ZengNature PortfolioScientific Reports2045-23222022-12-0112111010.1038/s41598-022-25860-5Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularizationJae Hui Kim0Jong Woo Kim1Chul Gu Kim2Department of Ophthalmology, Kim’s Eye HospitalDepartment of Ophthalmology, Kim’s Eye HospitalDepartment of Ophthalmology, Kim’s Eye HospitalAbstract This study aimed to compare 24-month treatment outcomes between patients with type 3 macular neovascularization (MNV) treated using an as-needed regimen and those who switched to treat-and-extend (TAE). This retrospective study included 32 patients who were initially treated with an as-needed regimen but switched to TAE (TAE group) and 74 patients who were treated with an as-needed regimen throughout the follow-up period (as-needed group). The number of anti-vascular endothelial growth factor (VEGF) injections and degree of change in best-corrected visual acuity (BCVA) over 24 months were compared between the two groups. The incidence of fibrotic scarring, tears of the retinal pigment epithelium (RPE), and subretinal hemorrhage was also evaluated. The number of anti-VEGF injections was higher in the TAE group (mean: 11.7) than in the as-needed group (mean: 6.9; P < 0.001). The BCVA outcome (measured using the mean logarithm of the minimal angle of resolution [logMAR]) was significantly better in the TAE group (mean improvement of logMAR 0.15) than in the as-needed group (mean deterioration of logMAR 0.15). The incidence of fibrotic scarring (6.3% vs. 18.9%), RPE tears (3.1% vs. 6.8%), and subretinal hemorrhage (0% vs. 9.5%) was relatively lower in the TAE group. Treatment outcomes of the TAE group were better than those of the as-needed group, suggesting that switching to the TAE regimen would be a useful approach for patients with type 3 MNV requiring efficient treatment.https://doi.org/10.1038/s41598-022-25860-5
spellingShingle Jae Hui Kim
Jong Woo Kim
Chul Gu Kim
Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularization
Scientific Reports
title Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularization
title_full Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularization
title_fullStr Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularization
title_full_unstemmed Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularization
title_short Comparison of 24-month treatment outcomes between as-needed treatment and switching to treat-and-extend in type 3 macular neovascularization
title_sort comparison of 24 month treatment outcomes between as needed treatment and switching to treat and extend in type 3 macular neovascularization
url https://doi.org/10.1038/s41598-022-25860-5
work_keys_str_mv AT jaehuikim comparisonof24monthtreatmentoutcomesbetweenasneededtreatmentandswitchingtotreatandextendintype3macularneovascularization
AT jongwookim comparisonof24monthtreatmentoutcomesbetweenasneededtreatmentandswitchingtotreatandextendintype3macularneovascularization
AT chulgukim comparisonof24monthtreatmentoutcomesbetweenasneededtreatmentandswitchingtotreatandextendintype3macularneovascularization