scholarly journals The Effect of Antivascular Endothelial Growth Factor Therapy on the Development of Neovascular Glaucoma after Central Retinal Vein Occlusion: A Retrospective Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Christina L. Ryu ◽  
Adrian Elfersy ◽  
Uday Desai ◽  
Thomas Hessburg ◽  
Paul Edwards ◽  
...  
Keyword(s):  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Significant Risk ◽  
Case Series ◽  
Neovascular Glaucoma ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Central Retinal Vein

Purpose. Ischemic central retinal vein occlusion (CRVO) eyes are at high risk of developing neovascular glaucoma (NVG). Our purpose is to investigate the effect of anti-VEGF therapy for macular edema after CRVO on the development of neovascular glaucoma (NVG) in ischemic CRVO eyes.Methods. This is a retrospective case series of 44 eyes from 44 patients with CRVO treated with anti-VEGF therapy for macular edema. The primary outcome was the development of NVG.Results. Of the 44 eyes, 14 eyes had ischemic CRVO, and 30 eyes had nonischemic CRVO. Nonischemic eyes received a mean of 8.4 anti-VEGF doses, over mean follow-up of 24 months. One nonischemic eye (3.3%) developed NVD but not NVG. The 14 ischemic eyes received a mean of 5.6 anti-VEGF doses, with mean follow-up of 23 months. Of these 14 ischemic eyes, two eyes (14%) developed iris neovascularization and 3 eyes (21%) developed posterior neovascularization. Three of these 5 eyes with neovascularization progressed to NVG, at 19.7 months after symptom onset, on average.Conclusion. Anti-VEGF therapy for macular edema may delay, but does not prevent, the development of ocular NV in ischemic CRVO. Significant risk of NVG still exists for ischemic CRVO eyes.

scholarly journals ROLE OF BEVACIZUMAB FOR PREVENTION OF NEOVASCULAR GLAUCOMA IN ACUTE RETINAL VEIN OCCLUSION

2018 ◽  
Vol 9 (1) ◽  
pp. 64-67
Author(s):  
Bassam Mubarik ◽  
Adeen Akram
Keyword(s):  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Neovascular Glaucoma ◽  
Ischemic Group ◽  
Vein Occlusion ◽  
Group 2 ◽  
Central Retinal Vein

ABSTRACT:There is a possibility of developing neovascular glaucoma in ischemic type of retinal vein occlusion. Purpose of the study is to determine the role of anti VEGF agent bevacizumab for prevention of neovascular glaucoma in ischemic type of retinal vein occlusion.METHOD: It was a retrospective study of 34 cases with unilateral central retinal vein occlusion. All of them were treated with intra vitreous Bevacizumab for management of associated macular edema. Primary outcome was to study development of neovascular glaucoma in these cases.RESULTS: Thirty four cases were selected with retinal vein occlusion. Seventeen cases were of non ischemic type and remaining 17 were of ischemic type vein occlusion. During a follow up period of two years non ischemic group was given on average 8 bevacizumab injection. Only one of these non ischemic eyes developed neo vessels of optic disc but neo vascular glaucoma did not develop. In case of ischemic group during follow up period of two years a mean of 6 bevacizumab injections were given. In this ischemic group 2 cases developed iris neovesseles and 3 cases developed retinal neovesseles. Out of these, three eyes progressed to neovascular glaucoma.CONCLUSION: Bevacizumab treatment of macular edema for ischemic central retinal vein occlusion does not prevent neovascular glaucoma.

scholarly journals Cytokines and Pathogenesis of Central Retinal Vein Occlusion

2020 ◽  
Vol 9 (11) ◽  
pp. 3457
Author(s):  
Hidetaka Noma ◽  
Kanako Yasuda ◽  
Masahiko Shimura
Keyword(s):  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Vision Loss ◽  
Neovascular Glaucoma ◽  
Retinal Blood Flow ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Central Retinal Vein

Central retinal vein occlusion (CRVO) causes macular edema and subsequent vision loss and is common in people with diseases such as arteriosclerosis and hypertension. Various treatments for CRVO-associated macular edema have been trialed, including laser photocoagulation, with unsatisfactory results. However, when the important pathogenic role of vascular endothelial growth factor (VEGF) in macular edema was identified, the treatment of CRVO was revolutionized by anti-VEGF therapy. However, despite the success of intraocular injection of anti-VEGF agents in many patients with CRVO, some patients continue to suffer from refractory or recurring edema. In addition, the expression of inflammatory cytokines increases over time, causing more severe inflammation and a condition that is increasingly resistant to anti-VEGF therapy. This indicates that the pathogenesis of macular edema in CRVO is more complex than originally thought and may involve factors or cytokines associated with inflammation and ischemia other than VEGF. CRVO is also associated with leukocyte abnormalities and a gradual reduction in retinal blood flow velocity, which increase the likelihood of it developing from the nonischemic type into the more severe ischemic type; in turn, this results in excessive VEGF expression and subsequent neovascular glaucoma. Here, we review the role of different factors and cytokines involved in CRVO pathogenesis and propose a mechanism that holds promise for the development of novel therapies.

scholarly journals Extended Injection Intervals after Switching from Ranibizumab to Aflibercept in Macular Edema due to Central Retinal Vein Occlusion

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Sylvia Nghiem-Buffet ◽  
Agnès Glacet-Bernard ◽  
Manar Addou-Regnard ◽  
Eric H. Souied ◽  
Salomon Y. Cohen ◽  
...  
Keyword(s):  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Vein Occlusion ◽  
Treatment Interval ◽  
Interval Extension ◽  
Before And After ◽  
Insufficient Response ◽  
Central Retinal Vein

Purpose. To assess treatment interval extension after switching from ranibizumab to aflibercept intravitreal injections in macular edema (ME) due to central retinal vein occlusion (CRVO) with an insufficient response or frequent recurrences to initial treatment. Methods. CRVO eyes treated with ranibizumab injections on a treat-and-extend (TAE) basis with an insufficient response or frequent recurrences were switched to aflibercept. Primary endpoint was the change in injection intervals before and after the switch. Results. Eleven eyes were included in this retrospective bicentric study. Before switching, patients received a mean number of 15.3 ranibizumab injections (range, 6–34) during a mean follow-up of 23.4 months (range, 6–57). After switching to aflibercept, patients received a mean number of 12.4 injections (range, 6–20) during a mean follow-up of 25.5 months (range, 16–38). Treatment interval could be extended from 6.1 (range, 4–8) to 11 weeks (range, 8–16) (p=0.001) corresponding to a mean extension of injection interval of +4.9 weeks. Conclusion. In case of insufficient response or frequent recurrences of ME due to CRVO in patients treated with ranibizumab on a TAE basis, switching to aflibercept could allow extending treatment intervals, which could reduce the injection burden for these patients.

Longitudinal Follow-Up of Choroidal Thickness in Central Retinal Vein Occlusion With and Without Cystoid Macular Edema

2018 ◽  
Vol 2 (5) ◽  
pp. 289-296 ◽  
Author(s):  
Atalie C. Thompson ◽  
Akshay S. Thomas ◽  
Adam L. Rothman ◽  
Duncan Berry ◽  
Sharon Fekrat
Keyword(s):  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Cystoid Macular Edema ◽  
Choroidal Thickness ◽  
Intravitreal Injections ◽  
Vein Occlusion ◽  
Over Time ◽  
Central Retinal Vein

Purpose: To investigate the longitudinal relationship between subfoveal choroidal thickness (CT) and central retinal vein occlusion (CRVO). Methods: Retrospective cohort of 104 subjects with enhanced-depth imaging optical coherence tomography for unilateral CRVO. Mean CT and best-corrected visual acuity (BCVA) were compared in eyes with and without CRVO and in eyes with CRVO with and without cystoid macular edema (CME). Results: CT was thicker in eyes with CRVO-related CME than uninvolved contralateral eyes at baseline (263.9 ± 86.9 versus 230.2 ± 87.9 µm; P < .001) and final follow-up (261.1 ± 94.7 versus 222.3 ± 86.2 µm; P = .007). CRVO eyes treated with intravitreal antivascular endothelial growth factor with or without steroid therapy showed a significant reduction in CT at final follow-up (256.3 ± 90.7 versus 236.9 ± 85.9 µm; P = .004). Subjects with CRVO who were not treated with intravitreal injections also showed a significant but more modest decline in CT over time (234.4 ± 94.2 versus 221.5 ± 97.1 µm; N = 31; P = .02). However, contralateral uninvolved eyes without CRVO did not show a significant change in CT over time (233.3 ± 87.9 versus 219.5 ± 90.6 µm; N = 71; P = .40). Persistent CME at final follow-up was associated with thicker baseline (277.6 ± 96.4 versus 235.1 ± 86.5 µm; P = .02) and final CT (265.7 ± 93.4 versus 215.0 ± 82.1 µm; P = .005). Change in CT was not related to change in BCVA ( P > .05). Conclusions: CT was greater in eyes with CRVO-related CME compared to eyes with CRVO but no CME and compared to uninvolved contralateral eyes. CT decreased in eyes with CRVO over time both among eyes that received intravitreal injections and among eyes that did not receive injections. CT may be a prognosticator of treatment response in CRVO-related CME.

scholarly journals MEK Inhibitor-Associated Central Retinal Vein Occlusion Associated with Hyperhomocysteinemia and MTHFR Variants

2019 ◽  
Vol 6 (3) ◽  
pp. 159-163
Author(s):  
Jasmine H. Francis ◽  
Eli L. Diamond ◽  
Ping Chi ◽  
Korey Jaben ◽  
David M. Hyman ◽  
...  
Keyword(s):  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Elevated Serum ◽  
Rare Event ◽  
Case Series ◽  
Mek Inhibitor ◽  
Cancer Center ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Central Retinal Vein

Background: Central retinal vein occlusion (CRVO) is a visually threatening event that has rarely been observed in patients taking MEK1/2 inhibitors and that may necessitate permanent discontinuation of a potentially efficacious therapy. We investigated the clinical characteristics of CRVO in patients on mitogen-activated protein kinase kinase (MEK) inhibition to better understand their predisposing factors and clinical course. Case Series: This was a single-center, retrospective cohort study (between December 2006 and September 2018). Three of 546 patients enrolled in 46 prospective trials involving treatment with MEK inhibitors at Memorial Sloan Kettering Cancer Center were identified as having CRVO. Clinical examination and course, multimodal ophthalmic imaging, and serum laboratory results (including homocysteine levels and genetic variants of methylene tetrahydrofolate reductase [MTHFR]) were reviewed for the 3 affected patients. All 3 patients with MEK inhibitor-associated CRVO had elevated serum homocysteine and gene variants of MTHFR (1 homozygous for A1298C, 1 heterozygous for A1298C, and 1 homozygous for C677T). Following intravitreous injections of anti-VEGF and discontinuation of drug, all patients regained vision to their baseline. Discussion: MEK inhibitor-associated CRVO is a rare event which can exhibit visual recovery after drug cessation and intravitreous anti-VEGF injections. In this cohort, it was associated with hyperhomocysteinemia and genetic mutations in MTHFR, suggesting a potential role for hyperhomocysteinemia screening prior to initiation of MEK inhibitor therapy.

Predictors of Short-Term Visual Outcome after Anti-VEGF Therapy of Macular Edema due to Central Retinal Vein Occlusion

2011 ◽  
Vol 52 (6) ◽  
pp. 3334 ◽  
Author(s):  
Ute E. K. Wolf-Schnurrbusch ◽  
Ramzi Ghanem ◽  
Simon P. Rothenbuehler ◽  
Volker Enzmann ◽  
Carsten Framme ◽  
...  
Keyword(s):  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Visual Outcome ◽  
Short Term ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Central Retinal Vein

Effect of Aflibercept on Cystoid Macular Edema Associated with Central Retinal Vein Occlusion. Results from a District Hospital in the United Kingdom

2019 ◽  
Vol 236 (04) ◽  
pp. 547-550
Author(s):  
Georgios Panos ◽  
Vassileios Kostakis ◽  
Grazyna Porter
Keyword(s):  
Visual Acuity ◽  
Adverse Effects ◽  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Central Retinal Vein Occlusion ◽  
Cystoid Macular Edema ◽  
Vein Occlusion ◽  
Intravitreal Aflibercept ◽  
Central Retinal Vein

Abstract Purpose The purpose of this study was to report the efficiency and safety of intravitreal aflibercept for the treatment of cystoid macular edema (CME) secondary to central retinal vein occlusion (CRVO). Methods This is a retrospective cohort study. Ten naive eyes of ten patients with CME secondary to CRVO were included. All eyes received a loading dose of 3 monthly aflibercept injections followed by as-needed injections at monthly follow-up visits. Best corrected visual acuity (BCVA) and central retinal thickness (CRT) were evaluated at baseline and at the end of the follow-up period. Results The median follow-up period was 6 months (range: 6 – 9). The median number of injections was 4 (range: 3 – 5). Median BCVA improved from 1.05 LogMAR units (range: 0.7 – 1.6) at baseline to 0.65 (range: 0.4 – 1.6) at the end of the follow-up period (p = 0.02). Median CRT improved from 690 µm (range: 561 – 1235) at baseline to 243 µm (range: 207 – 531) at the end of the follow-up period (p = 0.002). The power of all statistical tests was greater than 0.8. No adverse effects or complications were documented. Conclusion Intravitreal aflibercept treatment for CME secondary to CRVO significantly improved both macular anatomy and visual acuity without adverse effects.

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