scholarly journals Effect of anti-VEGF treatment on nonperfusion areas in ischemic retinopathy

2021 ◽  
Vol 14 (11) ◽  
pp. 1647-1652
Author(s):  
Zi-Yi Zhu ◽  
◽  
Bin Yan ◽  
Jing Luo ◽  
◽  
...  
Keyword(s):  
Retinal Ischemia ◽  
Vascular Endothelial ◽  
First Line ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Ischemic Retinopathy ◽  
High Concentrations ◽  
Endothelial Growth Factor ◽  
Different Levels ◽  
First Line Treatment

In recent years, retinal ischemia such as that which occurs in diabetic retinopathy (DR) and retinal vein occlusion (RVO) has become a hotspot of ischemic retinopathy research. High levels of vascular endothelial growth factor (VEGF) are recognized as a major cause of macular edema (ME) in DR and RVO. High concentrations of VEGF in the vitreous can lead to serious retinal ischemia and hypoxia and form retinal nonperfusion areas (NPAs). Different levels of retinal ischemia can represent disease severity and progression. Anti-VEGF therapy as the first-line treatment for ME has been found to be effective in improving vision, but there are still disputes about whether anti-VEGF therapy could improve retinal ischemia and achieve reperfusion of previously developed retinal NPAs. Here, we review and summarize studies of the effects of anti-VEGF drugs on retinal ischemia, especially NPAs.

Tractional retinal detachment (‘crunch’ phenomenon) from intravitreal anti-vascular endothelial growth factor injection in central retinal vein occlusion

2021 ◽  
Vol 14 (4) ◽  
pp. e240506
Author(s):  
Albert John Bromeo ◽  
Amadeo Veloso ◽  
Sweet Jorlene Lerit ◽  
Myron Carlo Gomez
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Retinal Detachment ◽  
Central Retinal Vein Occlusion ◽  
Vascular Endothelial ◽  
Tractional Retinal Detachment ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Endothelial Growth Factor ◽  
Central Retinal Vein

Tractional retinal detachment is an uncommon complication of intravitreal anti-vascular endothelial growth factor (VEGF) injection wherein the drug triggers tractional retinal detachment as a result of fibrovascular membrane contraction. We present a case of a 42-year-old hypertensive woman diagnosed with chronic central retinal vein occlusion on both eyes. The right eye had total retinal detachment and neovascular glaucoma, while the left eye had retinal neovascularisation. Panretinal photocoagulation and intravitreal anti-VEGF injection was started on the left eye. However, she was lost to follow-up. She returned 4 months later with extensive tractional retinal detachment involving the macula on the left eye. She subsequently underwent vitrectomy with endolaser and silicone oil tamponade on the left eye. The anti-VEGF ‘crunch’ results from regression of fibrovascular proliferation with a concurrent increase in fibrosis, resulting in worsening retinal traction. With the widespread use of anti-VEGF agents, ophthalmologists need to be aware of this vision-threatening complication.

scholarly journals Real world evidence on 5661 patients treated for macular oedema secondary to branch retinal vein occlusion with intravitreal anti-vascular endothelial growth factor, intravitreal dexamethasone or macular laser

2020 ◽  
pp. bjophthalmol-2020-315836 ◽  
Author(s):  
Richard Gale ◽  
Maria Pikoula ◽  
Aaron Y Lee ◽  
Spiros Denaxas ◽  
Catherine Egan ◽  
...  
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Visual Acuity ◽  
Growth Factor ◽  
Macular Oedema ◽  
Branch Retinal Vein Occlusion ◽  
Vascular Endothelial ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Intravitreal Dexamethasone ◽  
Endothelial Growth Factor

Background/aimsClinical trials suggest anti-vascular endothelial growth factor is more effective than intravitreal dexamethasone as treatment for macular oedema secondary to branch retinal vein occlusion. This study asks if ‘real world’ data from a larger and more diverse population, followed for a longer period, also support this conclusion.MethodsData collected to support routine care at 27 NHS (National Health Service) Trusts between February 2002 and September 2017 contained 5661 treatment-naive patients with a single mode of treatment for macular oedema secondary to branch retinal vein occlusion and no history of cataract surgery either during or recently preceding the treatment. Number of treatment visits and change in visual acuity from baseline was plotted for three treatment groups (anti-vascular endothelial growth factor (anti-VEGF), intravitreal dexamethasone, macular laser) for up to 3 years.ResultsMean baseline visual acuity was 57.1/53.1/62.3 letters in the anti-VEGF/dexamethasone/macular laser groups, respectively. This changed to 66.72 (+9.6)/57.6 (+4.5)/63.2 (+0.9) at 12 months. Adequate numbers allowed analysis at 18 months for all groups (66.6 (+9.5)/56.1 (+3.0)/60.8 (-1.5)) and for anti-VEGF at 36 months (68.0, +10.9) Mean number of treatments were 5.1/1.5/1.2 at 12 months, 5.9/1.7/1.2 at 18 months for all three groups and 10.3 at 36 months for anti-VEGF.ConclusionsVisual acuity improvements were higher and more sustained with anti-VEGF. Higher treatment burden occurred with anti-VEGF but this reduced over 36 months. Patients with better vision at baseline than those in the clinical trials maintained high levels of vision with both anti-VEGF and dexamethasone.

scholarly journals Combination Treatment of Diabetic Macular Edema with Anti-Vascular Endothelial Growth Factor and Steroids: Analysis of DRCR.net Protocol U

2018 ◽  
Vol 1 ◽  
pp. 2
Author(s):  
Cindy Ung ◽  
Kareem Moussa ◽  
Yoshihiro Yonekawa
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Diabetic Patients ◽  
Vascular Endothelial ◽  
First Line ◽  
Second Line Therapy ◽  
Anti Vegf ◽  
Endothelial Growth Factor

Diabetic macular edema (DME) is the main cause of visual impairment in diabetic patients. Intravitreal anti-vascular endothelial growth factor (VEGF) therapy is considered the first-line treatment option in the management of DME with corticosteroids used as second-line therapy. The DRCR.net Protocol U study was a Phase II trial that sought to compare the combination of a steroid and anti-VEGF therapy to anti-VEGF monotherapy regarding visual acuity and anatomic outcomes. This review highlights the strengths, weaknesses, and clinical implications of this study.

scholarly journals Multicentre study of 4626 patients assesses the effectiveness, safety and burden of two categories of treatments for central retinal vein occlusion: intravitreal anti-vascular endothelial growth factor injections and intravitreal Ozurdex injections

2020 ◽  
pp. bjophthalmol-2020-317306
Author(s):  
Richard Gale ◽  
Claire Gill ◽  
Maria Pikoula ◽  
Aaron Y Lee ◽  
Rachel L W Hanson ◽  
...  
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Central Retinal Vein Occlusion ◽  
Vascular Endothelial ◽  
Treatment Burden ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Endothelial Growth Factor ◽  
Central Retinal Vein ◽  
Number Of Injections

Background/AimsTo assess the effectiveness, burden and safety of two categories of treatment for central retinal vein occlusion (CRVO): intravitreal injections of anti-vascular endothelial growth factor (anti-VEGF) and dexamethasone (Ozurdex).MethodsA retrospective analysis of Medisoft electronic medical record (EMR) data from 27 National Health Service sites in the UK identified 4626 treatment-naive patients with a single mode of treatment for macular oedema secondary to CRVO. Statistics describing the overall CRVO patient cohort and individual patient subpopulations stratified by treatment type were generated. Mean age at baseline, gender, ethnicity, social deprivation and visual acuity (VA) follow-up was reported. Absolute and change in VA using ETDRS are used to describe treatment effectiveness, the number of injections and visits used to describe treatment burden and endophthalmitis rates as a marker of treatment safety.ResultsMean VA was 47.9 and 45.3 EDTRS letters in the anti-VEGF and Ozurdex groups, respectively. This changed to 57.9/53.7 at 12 months, 58.3/46.9 at 18 months and 59.4/51.0 at 36 months. Mean number of injections were 5.6/1.6 at 12 months, 6.0/1.7 at 18 months and 7.0/1.8 at 36 months. Endophthalmitis rates were 0.003% (n=4) for the anti-VEGF group and 0.09% (n=1) for the Ozurdex group.ConclusionsVA improvements were greater and more sustained with anti-VEGF treatment. Lower starting acuity resulted in bigger gains in both groups, while higher starting acuity resulted in higher VA at 36 months. Although treatment burden was greater with anti-VEGF, Ozurdex was associated with higher rates of endophthalmitis.

Intraocular Injections of Ranibizumab in Patients with Macular Edema Following Branch Retinal Vein Occlusion

2020 ◽  
pp. 127-132
Author(s):  
Alan D. Penman ◽  
Kimberly W. Crowder ◽  
William M. Watkins
Keyword(s):  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Branch Retinal Vein Occlusion ◽  
Controlled Trial ◽  
Phase Iii ◽  
Vascular Endothelial ◽  
Vein Occlusion ◽  
Endothelial Growth Factor ◽  
First Line Treatment

The Ranibizumab for Macular Edema following Branch Retinal Vein Occlusion (BRAVO) study was a 6-month, phase III, randomized, injection-controlled trial, with an additional 6 months of follow-up (total 12 months), to evaluate the safety and efficacy of intraocular injections of 0.3 mg and 0.5 mg ranibizumab (an anti–vascular endothelial growth factor [VEGF] agent) in patients with macular edema following branch retinal vein occlusion (BRVO). The study showed that intraocular injections of 0.3 mg or 0.5 mg ranibizumab provided rapid, effective treatment for macular edema following BRVO with low rates of ocular and nonocular adverse events. This study led to a paradigm shift toward anti-VEGF agents as the first-line treatment for macular edema secondary to BRVO.

Long-Term Outcomes of Anti-VEGF Therapy in Patients With Macular Edema Secondary to Retinal Vein Occlusion

2017 ◽  
Vol 1 (5) ◽  
pp. 298-304 ◽  
Author(s):  
Jason M. Young ◽  
Karen M. Wai ◽  
Fabiana Q. Silva ◽  
Felipe F. Conti ◽  
Sunil K. Srivastava ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Macular Edema ◽  
Retinal Vein Occlusion ◽  
Routine Clinical Practice ◽  
Vascular Endothelial ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Central Subfield Thickness ◽  
Endothelial Growth Factor

Purpose: To evaluate long-term visual and anatomical outcomes of anti–vascular endothelial growth factor (VEGF) therapy for macular edema (ME) secondary to retinal vein occlusion (RVO) in routine clinical practice. Methods: Patients with ME secondary to hemi-RVO (HRVO), central RVO (CRVO), or branch RVO (BRVO) after initiating anti-VEGF therapy were followed for at least 36 months. Main outcomes were change in best visual acuity (BVA) and mean absolute change in central subfield thickness (CST) at 12, 24, 36, and 48 months. Results: Patients with BRVO showed significant increases in BVA that were maintained after 12, 24, 36, and 48 months (+11.03, +12.06, +10.71, and +9.26 letters, respectively; P < .05). CST significantly decreased after 12, 24, 36, and 48 months (−83.51, −67.93, −97.52, −127.85 µm, respectively; P < .05). In patients with CRVO/HRVO, significant improvements in BVA were seen at 12 and 24 months (+9.39 and +8.54 letters, respectively; P = .023). At 36 and 48 months, the visual gain was not significant (+2.64 and +3.42 letters, respectively; P > .05). For CST changes, there were significant decreases at 12, 24, and 36 months (−146.23, −149.54, and −166.44 µm, respectively; P < .05). At 48 months (−97.66 µm, P = .130), changes in CST were not significant. Conclusions: In routine clinical practice, visual and anatomical benefits of anti-VEGF agents in patients with BRVO were sustained at 36 and 48 months. For patients with CRVO/HRVO, anatomical improvements were maintained for 36, but not 48 months, while visual improvements were no longer maintained by 36 months.

scholarly journals Five-year outcomes of retinal vein occlusion treated with vascular endothelial growth factor inhibitors

2019 ◽  
Vol 4 (1) ◽  
pp. e000249 ◽  
Author(s):  
Kimberly Spooner ◽  
Samantha Fraser-Bell ◽  
Thomas Hong ◽  
Andrew A Chang
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Retinal Vein Occlusion ◽  
Macular Oedema ◽  
Vascular Endothelial ◽  
Fundus Fluorescein Angiography ◽  
Foveal Thickness ◽  
Vein Occlusion ◽  
Anti Vegf ◽  
Endothelial Growth Factor

PurposeReport 5-year outcomes of patients receiving anti-vascular endothelial growth factor (VEGF) for the treatment of macular oedema secondary to retinal vein occlusion (RVO.MethodsRetrospective review of eyes with RVO which initiated anti-VEGF treatment. Data including age, gender, visual acuity (VA) and injection numbers were obtained from medical records. Optical coherence tomography scans were graded for presence or absence of macular oedema and central foveal thickness (CFT). Macular perfusion was assessed on fundus fluorescein angiography by masked graders.Results68 eyes (31 branch RVO, BRVO; 35 central RVO, CRVO and 2 hemi-RVO) with 5 years of follow-up after initiation of anti-VEGF treatment. Mean change in VA at 5 years was + 9.6 ± 21.6 letters among CRVO eyes and + 14.2 ± 15.6 letters among eyes with BRVO (p=0.001). Vision of 20/40 or better was achieved in 65 % of treated eyes. The proportion of eyes with a three-line improvement of vision (15 letters) at 5 years was 22 %. Mean CFT decreased by 257.6 ± 249.8 µm in eyes with CRVO and 145.6 ± 143.3 µm in eyes with BRVO.ConclusionThe results confirm good long-term outcomes can be achieved with anti-VEGF therapy for RVO.

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