Intravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye

Diabetic macular edema (DME) is the main cause of visual loss in patients with diabetic retinopathy. DME has been treated using intravitreal anti-vascular endothelial growth factor (VEGF) drugs, steroids, laser photocoagulation, vitreoretinal surgery, and their combinations. These modalities are gen...

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Autores principales: Ren Aoki, Makoto Hatano, Fumiaki Higashijima, Takuya Yoshimoto, Masanori Mikuni, Tadahiko Ogata, Yuka Kobayashi, Makiko Wakuta, Kazuhiro Kimura
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Publicado: Karger Publishers 2021
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Acceso en línea:https://doaj.org/article/a7bc3bcbc55f46a5a30e91fc8cfbb2e9
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spelling oai:doaj.org-article:a7bc3bcbc55f46a5a30e91fc8cfbb2e92021-11-11T10:40:45ZIntravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye1663-269910.1159/000518289https://doaj.org/article/a7bc3bcbc55f46a5a30e91fc8cfbb2e92021-10-01T00:00:00Zhttps://www.karger.com/Article/FullText/518289https://doaj.org/toc/1663-2699Diabetic macular edema (DME) is the main cause of visual loss in patients with diabetic retinopathy. DME has been treated using intravitreal anti-vascular endothelial growth factor (VEGF) drugs, steroids, laser photocoagulation, vitreoretinal surgery, and their combinations. These modalities are generally effective in preserving vision, but they sometimes produce only limited responses in patients with persistent or refractory DME. The levels of various inflammatory factors, including cytokines, chemokines, and extracellular matrices, as well as VEGF in the vitreous fluid, are increased in patients with DME. Excessive fibrinogen/fibrin levels in the vitreous fluid or fibrin deposition in the retina also contribute to DME pathogenesis. Tissue plasminogen activator (t-PA) promotes the degradation of fibrinogen or fibrin. Intravitreal t-PA injection is a commonly used treatment for subretinal hemorrhage secondary to age-related macular degeneration. Intravitreal t-PA injections have previously been used to restore vision by inducing posterior vitreous detachment in patients with DME. Herein, we describe the visual outcomes of intravitreal t-PA injection in a 78-year-old woman with treatment-resistant DME in her vitrectomized eye after several previous treatments. Before the injection, her best-corrected visual acuity (BCVA) was 0.7 logMAR and central foveal retinal thickness (CRT) was 735 μm. At 1 month after the injection, her BCVA was 0.8 logMAR and CRT was 558 μm, and 3 months later, her BCVA was 0.8 logMAR and CRT was 207 μm. Her BCVA was sustained, and CRT showed gradual improvements. These findings suggested the effectiveness of intravitreal t-PA injections for DME in the vitrectomized eye.Ren AokiMakoto HatanoFumiaki HigashijimaTakuya YoshimotoMasanori MikuniTadahiko OgataYuka KobayashiMakiko WakutaKazuhiro KimuraKarger Publishersarticletissue plasminogen activatordiabetic macular edemavitrectomized eyecentral retinal thicknessvisual acuityOphthalmologyRE1-994ENCase Reports in Ophthalmology, Vol 12, Iss 3, Pp 841-847 (2021)
institution DOAJ
collection DOAJ
language EN
topic tissue plasminogen activator
diabetic macular edema
vitrectomized eye
central retinal thickness
visual acuity
Ophthalmology
RE1-994
spellingShingle tissue plasminogen activator
diabetic macular edema
vitrectomized eye
central retinal thickness
visual acuity
Ophthalmology
RE1-994
Ren Aoki
Makoto Hatano
Fumiaki Higashijima
Takuya Yoshimoto
Masanori Mikuni
Tadahiko Ogata
Yuka Kobayashi
Makiko Wakuta
Kazuhiro Kimura
Intravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye
description Diabetic macular edema (DME) is the main cause of visual loss in patients with diabetic retinopathy. DME has been treated using intravitreal anti-vascular endothelial growth factor (VEGF) drugs, steroids, laser photocoagulation, vitreoretinal surgery, and their combinations. These modalities are generally effective in preserving vision, but they sometimes produce only limited responses in patients with persistent or refractory DME. The levels of various inflammatory factors, including cytokines, chemokines, and extracellular matrices, as well as VEGF in the vitreous fluid, are increased in patients with DME. Excessive fibrinogen/fibrin levels in the vitreous fluid or fibrin deposition in the retina also contribute to DME pathogenesis. Tissue plasminogen activator (t-PA) promotes the degradation of fibrinogen or fibrin. Intravitreal t-PA injection is a commonly used treatment for subretinal hemorrhage secondary to age-related macular degeneration. Intravitreal t-PA injections have previously been used to restore vision by inducing posterior vitreous detachment in patients with DME. Herein, we describe the visual outcomes of intravitreal t-PA injection in a 78-year-old woman with treatment-resistant DME in her vitrectomized eye after several previous treatments. Before the injection, her best-corrected visual acuity (BCVA) was 0.7 logMAR and central foveal retinal thickness (CRT) was 735 μm. At 1 month after the injection, her BCVA was 0.8 logMAR and CRT was 558 μm, and 3 months later, her BCVA was 0.8 logMAR and CRT was 207 μm. Her BCVA was sustained, and CRT showed gradual improvements. These findings suggested the effectiveness of intravitreal t-PA injections for DME in the vitrectomized eye.
format article
author Ren Aoki
Makoto Hatano
Fumiaki Higashijima
Takuya Yoshimoto
Masanori Mikuni
Tadahiko Ogata
Yuka Kobayashi
Makiko Wakuta
Kazuhiro Kimura
author_facet Ren Aoki
Makoto Hatano
Fumiaki Higashijima
Takuya Yoshimoto
Masanori Mikuni
Tadahiko Ogata
Yuka Kobayashi
Makiko Wakuta
Kazuhiro Kimura
author_sort Ren Aoki
title Intravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye
title_short Intravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye
title_full Intravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye
title_fullStr Intravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye
title_full_unstemmed Intravitreal Tissue Plasminogen Activator Injection for Treatment-Resistant Diabetic Macular Edema of the Vitrectomized Eye
title_sort intravitreal tissue plasminogen activator injection for treatment-resistant diabetic macular edema of the vitrectomized eye
publisher Karger Publishers
publishDate 2021
url https://doaj.org/article/a7bc3bcbc55f46a5a30e91fc8cfbb2e9
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