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Fallico M, Macchi I, Maugeri A, Favara G, Barchitta M, Magnano San Lio R, Agodi A, Russo A, Longo A, Avitabile T, Castellino N, Reibaldi M, Pignatelli F, Vadalà M, Patanè C, Nebbioso M, Bonfiglio V. Anti-vascular endothelial growth factor monotherapy or combined with verteporfin photodynamic therapy for retinal angiomatous proliferation: a systematic review with meta-analysis. Front Pharmacol 2023; 14:1141077. [PMID: 37377929 PMCID: PMC10291099 DOI: 10.3389/fphar.2023.1141077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/19/2023] [Indexed: 06/29/2023] Open
Abstract
Purpose: To assess functional and anatomical outcomes of intravitreal anti-Vascular Endothelial Growth Factor (anti-VEGF) monotherapy versus combined with verteporfin Photodynamic Therapy (PDT) for Retinal Angiomatous Proliferation (RAP). Methods: Studies reporting outcomes of intravitreal anti-VEGF monotherapy and/or in combination with verteporfin PDT in RAP eyes with a follow-up ≥ 12 months were searched. The primary outcome was the mean change in best corrected visual acuity (BCVA) at 12 months. Mean change in central macular thickness (CMT) and mean number of injections were considered as secondary outcomes. The mean difference (MD) between pre- and post-treatment values was calculated along with 95% Confidence Interval (95% CI). Meta-regressions were performed to assess the influence of anti-VEGF number of injections on BCVA and CMT outcomes. Results: Thirty-four studies were included. A mean gain of 5.16 letters (95% CI = 3.30-7.01) and 10.38 letters (95% CI = 8.02-12.75) was shown in the anti-VEGF group and combined group, respectively (anti-VEGF group vs. combined group, p < 0.01). A mean CMT reduction of 132.45 µm (95% CI = from -154.99 to -109.90) and 213.93 µm (95% CI = from -280.04 to -147.83) was shown in the anti-VEGF group and combined group, respectively (anti-VEGF group vs. combined group, p < 0.02). A mean of 4.9 injections (95% CI = 4.2-5.6) and 2.8 injections (95% CI = 1.3-4.4) were administered over a 12-month period in the anti-VEGF group and combined group, respectively. Meta-regression analyses showed no influence of injection number on visual and CMT outcomes. High heterogeneity was found across studies for both functional and anatomical outcomes. Conclusion: A combined approach with anti-VEGF and PDT could provide better functional and anatomical outcomes in RAP eyes compared with anti-VEGF monotherapy.
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Affiliation(s)
- Matteo Fallico
- Department of Ophthalmology, University of Catania, Catania, Italy
| | - Iacopo Macchi
- Newcastle Eye Unit, Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom
| | - Andrea Maugeri
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, Catania, Italy
| | - Giuliana Favara
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, Catania, Italy
| | - Martina Barchitta
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, Catania, Italy
| | - Roberta Magnano San Lio
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, Catania, Italy
| | - Antonella Agodi
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, Catania, Italy
| | - Andrea Russo
- Department of Ophthalmology, University of Catania, Catania, Italy
| | - Antonio Longo
- Department of Ophthalmology, University of Catania, Catania, Italy
| | | | | | - Michele Reibaldi
- Department of Surgical Sciences, Eye Clinic Section, University of Turin, Turin, Italy
| | | | - Maria Vadalà
- Department of Experimental Biomedicine and Clinical Neuroscience, Ophthalmology Section, University of Palermo, Palermo, Italy
| | - Clara Patanè
- Department of Experimental Biomedicine and Clinical Neuroscience, Ophthalmology Section, University of Palermo, Palermo, Italy
| | - Marcella Nebbioso
- Department of Sense Organs, Faculty of Medicine and Dentistry, Sapienza University of Rome, Rome, Italy
| | - Vincenza Bonfiglio
- Department of Experimental Biomedicine and Clinical Neuroscience, Ophthalmology Section, University of Palermo, Palermo, Italy
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Qiang W, Wei R, Chen Y, Chen D. Clinical Pathological Features and Current Animal Models of Type 3 Macular Neovascularization. Front Neurosci 2021; 15:734860. [PMID: 34512255 PMCID: PMC8427186 DOI: 10.3389/fnins.2021.734860] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/29/2021] [Indexed: 02/05/2023] Open
Abstract
Type 3 macular neovascularization (MNV3), or retinal angiomatous proliferation (RAP), is a distinct type of neovascular age-related macular degeneration (AMD), which is a leading cause of vision loss in older persons. During the past decade, systematic investigation into the clinical, multimodal imaging, and histopathological features and therapeutic outcomes has provided important new insight into this disease. These studies favor the retinal origin of MNV3 and suggest the involvement of retinal hypoxia, inflammation, von Hippel–Lindau (VHL)–hypoxia-inducible factor (HIF)–vascular endothelial growth factor (VEGF) pathway, and multiple cell types in the development and progression of MNV3. Several mouse models, including the recently built Rb/p107/Vhl triple knockout mouse model by our group, have induced many of the histological features of MNV3 and provided much insight into the underlying pathological mechanisms. These models have revealed the roles of retinal hypoxia, inflammation, lipid metabolism, VHL/HIF pathway, and retinoblastoma tumor suppressor (Rb)–E2F cell cycle pathway in the development of MNV3. This article will summarize the clinical, multimodal imaging, and pathological features of MNV3 and the diversity of animal models that exist for MNV3, as well as their strengths and limitations.
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Affiliation(s)
- Wei Qiang
- Research Laboratory of Ophthalmology and Vision Sciences, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Ran Wei
- Research Laboratory of Ophthalmology and Vision Sciences, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Yongjiang Chen
- The School of Optometry and Vision Science, University of Waterloo, Waterloo, ON, Canada
| | - Danian Chen
- Research Laboratory of Ophthalmology and Vision Sciences, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
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3
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Kim JH, Kim JW, Kim CG, Lee DW. Long-Term Treatment Outcomes in Type 3 Neovascularization: Focus on the Difference in Outcomes between Geographic Atrophy and Fibrotic Scarring. J Clin Med 2020; 9:jcm9041145. [PMID: 32316276 PMCID: PMC7230588 DOI: 10.3390/jcm9041145] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/03/2020] [Accepted: 04/14/2020] [Indexed: 11/29/2022] Open
Abstract
Background: To evaluate the difference in the long-term treatment outcomes of type 3 neovascularization between eyes with geographic atrophy and those with fibrotic scars. Methods: This retrospective study included 195 eyes diagnosed with type 3 neovascularization and treated with anti-vascular endothelial growth factor (VEGF) agents. The included eyes were divided into three groups according to the fundus findings at the final visit: patients with fovea-involving geographic atrophy (GA group), patients with fovea-involving fibrotic scars (scar group), and patients with no fovea-involving geographic atrophy or fibrotic scars (non-GA/scar group). The best-corrected visual acuities (BCVA) of the three groups at the final visits were compared. Results: The mean follow-up period was 47.5 ± 20.7 months. The mean logMAR BCVA at the final visit was 1.18 ± 0.58 in the GA group (n = 58), 1.67 ± 0.58 in the scar group (n = 62), and 0.69 ± 0.64 in the non-GA/scar group (n = 75). The BCVA was significantly worse in the scar group than in the GA (p < 0.001) and the non-GA/scar groups (p < 0.001). Conclusion: Eyes with fibrotic scars showed the poorest visual outcomes in type 3 neovascularization among the studied groups. Preventing the development of fibrotic scars should be considered an important treatment goal.
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Affiliation(s)
- Jae Hui Kim
- Correspondence: ; Tel.: +82-2-2639-7664; Fax: +82-2-2639-7824
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Fung AT, Tran T, Lim LL, Samarawickrama C, Arnold J, Gillies M, Catt C, Mitchell L, Symons A, Buttery R, Cottee L, Tumuluri K, Beaumont P. Local delivery of corticosteroids in clinical ophthalmology: A review. Clin Exp Ophthalmol 2020; 48:366-401. [PMID: 31860766 PMCID: PMC7187156 DOI: 10.1111/ceo.13702] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 11/21/2019] [Accepted: 12/09/2019] [Indexed: 12/22/2022]
Abstract
Locally administered steroids have a long history in ophthalmology for the treatment of inflammatory conditions. Anterior segment conditions tend to be treated with topical steroids whilst posterior segment conditions generally require periocular, intravitreal or systemic administration for penetration. Over recent decades, the clinical applications of periocular steroid delivery have expanded to a wide range of conditions including macular oedema from retino-vascular conditions. Formulations have been developed with the aim to provide practical, targeted, longer-term and more efficacious therapy whilst minimizing side effects. Herein, we provide a comprehensive overview of the types of periocular steroid delivery, their clinical applications in ophthalmology and their side effects.
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Affiliation(s)
- Adrian T. Fung
- Westmead Clinical SchoolDiscipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
- Department of Ophthalmology, Faculty of Medicine and Health SciencesMacquarie UniversitySydneyNew South WalesAustralia
- Save Sight InstituteCentral Clinical School, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
| | - Tuan Tran
- Save Sight InstituteCentral Clinical School, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
| | - Lyndell L. Lim
- Royal Victorian Eye and Ear HospitalMelbourneVictoriaAustralia
- Centre for Eye Research AustraliaMelbourneVictoriaAustralia
- University of MelbourneMelbourneVictoriaAustralia
| | - Chameen Samarawickrama
- Westmead Clinical SchoolDiscipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
- Save Sight InstituteCentral Clinical School, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
- Liverpool Clinical School, Faculty of MedicineUniversity of New South WalesSydneyNew South WalesAustralia
| | | | - Mark Gillies
- Save Sight InstituteCentral Clinical School, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
| | - Caroline Catt
- Save Sight InstituteCentral Clinical School, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
- Children's Hospital WestmeadWestmeadNew South WalesAustralia
| | | | | | | | - Lisa Cottee
- Eye Doctors Mona ValeSydneyNew South WalesAustralia
| | - Krishna Tumuluri
- Westmead Clinical SchoolDiscipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
- Department of Ophthalmology, Faculty of Medicine and Health SciencesMacquarie UniversitySydneyNew South WalesAustralia
- Save Sight InstituteCentral Clinical School, Discipline of Clinical Ophthalmology and Eye Health, University of Sydney, Sydney, New South WalesAustralia
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Browning A, O’Brien J, Vieira R, Gupta R, Nenova K. Intravitreal Aflibercept for Retinal Angiomatous Proliferation: Results of a Prospective Case Series at 96 Weeks. Ophthalmologica 2019; 242:239-246. [DOI: 10.1159/000500203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/05/2019] [Indexed: 11/19/2022]
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de Jong JH, Braaf B, Amarakoon S, Gräfe M, Yzer S, Vermeer KA, Missotten T, de Boer JF, van Velthoven MEJ. Treatment Effects in Retinal Angiomatous Proliferation Imaged with OCT Angiography. Ophthalmologica 2018; 241:143-153. [PMID: 30227415 DOI: 10.1159/000491798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 07/04/2018] [Indexed: 11/19/2022]
Abstract
PURPOSE This prospective case series is aimed at exploring optical coherence tomographic angiography (OCT-A) as a treatment monitoring tool in patients treated for retinal angiomatous proliferation (RAP). METHODS Twelve treatment-naïve RAP patients were included, with a median age of 79 years (range 65-90). Patients were imaged with an experimental 1,040-nm swept-source phase-resolved OCT-A instrument before and after treatment. Treatment consisted of either intravitreal bevacizumab or triamcinolone injections with or without photodynamic therapy (PDT). Abnormal blood flow after treatment was graded as increased, unchanged, decreased, or resolved. RESULTS OCT-A images before and after treatment could be obtained in 9 patients. The median follow-up period was 10 weeks (range 5-19). After various treatments, the RAP lesion resolved in 7 patients, in 1 patient the OCT-A depicted decreased flow in the lesion, and 1 patient showed unchanged abnormal blood flow. Monotherapy with intravitreal bevacizumab injections resolved RAP in 1 out of 2 patients. Combined therapy of bevacizumab with PDT resolved RAP in 6 out of 7 patients. CONCLUSIONS OCT-A visualized resolution of abnormal blood flow in 7 out of 9 RAP patients after various short-term treatment sequences. OCT-A may become an important noninvasive monitoring tool for optimizing treatment strategies in RAP patients.
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Affiliation(s)
- Jan H de Jong
- Rotterdam Ophthalmic Institute, Rotterdam, The Netherlands.,Rotterdam Eye Hospital, Rotterdam, The Netherlands
| | - Boy Braaf
- Institute for Lasers, Life and Biophotonics Amsterdam, Department of Physics and Astronomy, VU University, Amsterdam, The Netherlands
| | - Sankha Amarakoon
- Rotterdam Ophthalmic Institute, Rotterdam, The Netherlands.,Rotterdam Eye Hospital, Rotterdam, The Netherlands
| | - Maximilian Gräfe
- Institute for Lasers, Life and Biophotonics Amsterdam, Department of Physics and Astronomy, VU University, Amsterdam, The Netherlands
| | - Suzanne Yzer
- Rotterdam Ophthalmic Institute, Rotterdam, The Netherlands.,Rotterdam Eye Hospital, Rotterdam, The Netherlands
| | | | - Tom Missotten
- Rotterdam Ophthalmic Institute, Rotterdam, The Netherlands.,Rotterdam Eye Hospital, Rotterdam, The Netherlands
| | - Johannes F de Boer
- Rotterdam Ophthalmic Institute, Rotterdam, The Netherlands.,Institute for Lasers, Life and Biophotonics Amsterdam, Department of Physics and Astronomy, VU University, Amsterdam, The Netherlands
| | - Mirjam E J van Velthoven
- Rotterdam Ophthalmic Institute, Rotterdam, The Netherlands, .,Rotterdam Eye Hospital, Rotterdam, The Netherlands,
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Malamos P, Tservakis I, Kanakis M, Koutsiouki C, Kiskira E, Mylonas G, Lakoumentas J, Georgalas I. Long-Term Results of Combination Treatment with Single-Dose Ranibizumab plus Photodynamic Therapy for Retinal Angiomatous Proliferation. Ophthalmologica 2018; 240:213-221. [DOI: 10.1159/000487610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 02/12/2018] [Indexed: 11/19/2022]
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Abstract
PURPOSE To describe histopathologic features of an eye with retinal angiomatous proliferation (RAP) secondary to age-related macular degeneration treated with serial ranibizumab injections and to correlate these findings with spectral domain optical coherence tomography. METHODS Histopathologic features from serial sections through the globe of a 93-year-old man with age-related macular degeneration were studied and compared with spectral domain optical coherence tomography images obtained 7 weeks before his death. RESULTS The pathologic correlate of ranibizumab-treated RAP was a circumscribed, branching paucicellular vascular complex extending from the inner plexiform layer to Bruch membrane. The histopathologic findings corresponded to an area of hyperreflectivity on spectral domain optical coherence tomography imaging, substantiating the reported tomographic appearance of RAP lesions. A frank anastomosis with choroidal or retinal vasculature was not seen in this treated RAP lesion. There was a lack of retinal pigment epithelium underlying the lesion in an area of retinal pigment epithelium detachment. The elastic portion of Bruch membrane appeared intact. Treatment with ranibizumab over an extended period of time may have been associated with a loss of cellularity of the RAP lesion. CONCLUSION In a patient with ARMD extensively treated with ranibizumab, color fundus photography, fluorescein angiography and SD-OCT images of RAP correlated histopathologically with a paucicellular intraretinal vascular complex.
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9
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Tsai AS, Cheung N, Gan AT, Jaffe GJ, Sivaprasad S, Wong TY, Cheung CMG. Retinal angiomatous proliferation. Surv Ophthalmol 2017; 62:462-492. [DOI: 10.1016/j.survophthal.2017.01.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 01/24/2017] [Accepted: 01/27/2017] [Indexed: 01/06/2023]
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10
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Chou HD, Wu WC, Wang NK, Chuang LH, Chen KJ, Lai CC. Short-term efficacy of intravitreal Aflibercept injections for retinal angiomatous proliferation. BMC Ophthalmol 2017; 17:104. [PMID: 28655307 PMCID: PMC5488380 DOI: 10.1186/s12886-017-0497-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/16/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To evaluate the short-term efficacy of intravitreal injections of aflibercept (IVA) to treat retinal angiomatous proliferation (RAP) and identify factors related to functional outcomes. METHODS This retrospective case series consisted of 19 eyes in 19 patients with RAP. All 19 eyes received 3 monthly consecutive IVA. The primary outcome measures were best-corrected visual acuity (BCVA) and central retinal thickness (CRT) after the last IVA. RESULTS Of the 19 treated eyes, 8 (42%) were pre-treated with 1 dose of bevacizumab one month prior to the initiation of treatment with aflibercept. BCVA was significantly improved and CRT was significantly reduced after 3 consecutive IVAs (P = 0.014 and P = 0.0002, respectively). Stabilization or improvement in BCVA was observed in 17 eyes (90%) treated with IVA. Eyes with baseline fibrovascular pigment epithelial detachment (PED) showed no significant gain in BCVA, and fibrovascular PED was negatively correlated with final BCVA (Spearman's correlation coefficient = - 0.481, P = 0.037). The mean follow-up was 3.5 ± 0.5 months. CONCLUSIONS In this short-term study, three consecutive IVAs showed efficacy for improving vision and reducing retinal edema in RAP patients. Eyes with fibrovascular PED showed poorer responses, and the presence of fibrovascular PED at baseline was negatively correlated with visual outcomes.
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Affiliation(s)
- Hung-Da Chou
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China
| | - Wei-Chi Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China.,School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China
| | - Nan-Kai Wang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China.,School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China
| | - Lan-Hsin Chuang
- School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China.,Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung, No. 222, Maijin Rd., Anle Dist., Keelung City, 204, Taiwan, Republic of China
| | - Kuan-Jen Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China.,School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China
| | - Chi-Chun Lai
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China. .,School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan City, 333, Taiwan, Republic of China.
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Kim JM, Kim JH, Chang YS, Kim JW, Kim CG, Lee DW. Treatment of Bilateral Retinal Angiomatous Proliferation with Anti-vascular Endothelial Growth Factor: 12-Month Outcome. KOREAN JOURNAL OF OPHTHALMOLOGY 2017; 31:240-248. [PMID: 28471100 PMCID: PMC5469927 DOI: 10.3341/kjo.2016.0026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 06/13/2016] [Indexed: 11/23/2022] Open
Abstract
Purpose To evaluate the 12-month outcome of intravitreal anti-vascular endothelial growth factor therapy in eyes with bilateral retinal angiomatous proliferation (RAP). Methods This retrospective observational study included 38 eyes of 19 patients with stage 1 or 2 bilateral RAP at diagnosis. The eyes of patients who exhibited different baseline best-corrected visual acuity (BCVA) values in both eyes were assigned to one of two groups—the better (n=13) and worse (n=13) visual acuity groups. The BCVA values in both groups were compared to those at baseline and at 12 months. In addition, the 12-month changes in BCVA were compared between the two groups. The association between the optical coherence tomography findings at diagnosis and the 12-month BCVA was also analyzed. Results The values of mean baseline and 12-month BCVA in the better visual acuity group (13 eyes) were 0.48 ± 0.19 and 0.58 ± 0.29, respectively, and those in the worse visual acuity group (13 eyes) were 0.83 ± 0.20 and 0.90 ± 0.31. The 12-month changes in BCVA were not significantly different between the two groups (p=0.786). Among the six patients with equivalent baseline BCVA in both eyes, four patients (66.7%) exhibited 1 to 2 lines or ≥3 lines of difference in BCVA between eyes at 12 months. Eyes without pigment epithelial detachment (PED) at diagnosis exhibited significantly better BCVA at 12 months than eyes with PED (p=0.021). Conclusions Better baseline visual acuity was associated with better BCVA at 12 months posttreatment in patients with bilateral RAP. However, equivalent baseline visual acuity in both eyes might not guarantee similar treatment outcomes. In addition, the absence of PED is predictive of better visual outcome.
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Affiliation(s)
- Jae Min Kim
- Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Jae Hui Kim
- Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea.
| | - Young Suk Chang
- Department of Ophthalmology, Konyang University College of Medicine, Daejeon, Korea
| | - Jong Woo Kim
- Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Chul Gu Kim
- Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Dong Won Lee
- Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
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CHOROIDAL THICKNESS CHANGE AFTER INTRAVITREAL ANTI-VASCULAR ENDOTHELIAL GROWTH FACTOR TREATMENT IN RETINAL ANGIOMATOUS PROLIFERATION AND ITS RECURRENCE. Retina 2016; 36:1516-26. [DOI: 10.1097/iae.0000000000000952] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Yang S, Zhao J, Sun X. Resistance to anti-VEGF therapy in neovascular age-related macular degeneration: a comprehensive review. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:1857-67. [PMID: 27330279 PMCID: PMC4898027 DOI: 10.2147/dddt.s97653] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
As a progressive chronic disease, age-related macular degeneration (AMD) is the leading cause of irreversible vision impairment worldwide. Experimental and clinical evidence has demonstrated that vascular endothelial growth factor (VEGF) plays a vital role in the formation of choroidal neovascularization. Intravitreal injections of anti-VEGF agents have been recommended as a first-line treatment for neovascular AMD. However, persistent fluid or recurrent exudation still occurs despite standardized anti-VEGF therapy. Patients suffering from refractory or recurrent neovascular AMD may develop mechanisms of resistance to anti-VEGF therapy, which results in a diminished therapeutic effect. Until now, there has been no consensus on the definitions of refractory neovascular AMD and recurrent neovascular AMD. This article aims at clarifying these concepts to evaluate the efficacy of switching drugs, which contributes to making clinical decision more scientifically. Furthermore, insight into the causes of resistance to anti-VEGF therapy would be helpful for developing possible therapeutic approaches, such as combination therapy and multi-target treatment that can overcome this resistance.
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Affiliation(s)
- Shiqi Yang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jingke Zhao
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Xiaodong Sun
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China; Eye Research Institute of Shanghai Jiao Tong University, Shanghai, People's Republic of China; Shanghai Key Laboratory of Fundus Disease, Shanghai, People's Republic of China
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Daniel E, Shaffer J, Ying GS, Grunwald JE, Martin DF, Jaffe GJ, Maguire MG. Outcomes in Eyes with Retinal Angiomatous Proliferation in the Comparison of Age-Related Macular Degeneration Treatments Trials (CATT). Ophthalmology 2016; 123:609-16. [PMID: 26681392 PMCID: PMC4766028 DOI: 10.1016/j.ophtha.2015.10.034] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 10/20/2015] [Accepted: 10/20/2015] [Indexed: 12/21/2022] Open
Abstract
PURPOSE To compare baseline characteristics, visual acuity (VA), and morphologic outcomes between eyes with retinal angiomatous proliferation (RAP) and all other eyes among patients with neovascular age-related macular degeneration (NVAMD) treated with anti-vascular endothelial growth factor (VEGF) drugs. DESIGN Prospective cohort study within the Comparison of Age-Related Macular Degeneration Treatments Trials (CATT). PARTICIPANTS Patients with NVAMD. METHODS Reading center staff evaluated digital color fundus photographs, fluorescein angiography (FA) images, and optical coherence tomography (OCT) scans of eyes with NVAMD treated with either ranibizumab or bevacizumab over a 2-year period. Retinal angiomatous proliferation was identified by the intense intra-retinal leakage of fluorescein in combination with other associated features. MAIN OUTCOME MEASURES Visual acuity; fluorescein leakage; scar; geographic atrophy (GA) on FA; retinal thickness, fluid, and subretinal hyperreflective material (SHRM) on OCT; and the number of intravitreal anti-VEGF injections at 1 and 2 years. RESULTS Retinal angiomatous proliferation was present in 126 of 1183 (10.7%) study eyes at baseline. Mean VA improvement from baseline was greater (10.6 vs. 6.9 letters; P = 0.01) at 1 year, but similar at 2 years (7.8 vs. 6.2 letters; P = 0.34). At 1 year, eyes with RAP were more likely to have no fluid (46% vs. 26%; P < 0.001) on OCT, no leakage on FA (61% vs. 50%; P = 0.03), and greater reduction in foveal thickness (-240 μm vs. -161 μm; P < 0.001). They were more likely to demonstrate GA (24% vs. 15%; P = 0.01) and less likely to have scarring (17% vs. 36%; P < 0.001) or SHRM (36% vs. 48%; P = 0.01). These results were similar at 2 years. The mean change in lesion size at 1 year differed (-0.27 DA vs. 0.27 DA; P = 0.02), but was similar at 2 years (0.49 DA vs. 0.79 DA; P = 0.26). Among eyes treated PRN, eyes with RAP received a lower mean number of injections in year 1 (6.1 vs. 7.4; P = 0.003) and year 2 (5.4 vs. 6.6; P = 0.025). CONCLUSIONS At both 1 and 2 years after initiation of anti-VEGF treatment in CATT, eyes with RAP were less likely to have fluid, FA leakage, scar, and SHRM and more likely to have GA than eyes without RAP. Mean improvement in VA was similar at 2 years.
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Affiliation(s)
- Ebenezer Daniel
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - James Shaffer
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Gui-shuang Ying
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Juan E Grunwald
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | - Glenn J Jaffe
- Department of Ophthalmology, Duke University, Durham, North Carolina
| | - Maureen G Maguire
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
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Park YG, Roh YJ. One year results of intravitreal ranibizumab monotherapy for retinal angiomatous proliferation: a comparative analysis based on disease stages. BMC Ophthalmol 2015; 15:182. [PMID: 26691185 PMCID: PMC4685625 DOI: 10.1186/s12886-015-0172-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 12/14/2015] [Indexed: 11/13/2022] Open
Abstract
Background Retinal angiomatous proliferation (RAP) has been known as a variant of exudative age-related macular degeneration (AMD) with a unfavorable prognosis. To evaluate the effect of ranibizumab administered initially as three loading doses for patients with various stages of RAP. Methods A retrospective chart review of 40 patients (41 eyes) with RAP was conducted. The study divided patients into three groups of Group I (8 eyes in stage I), Group II (17eyes in stage II), and Group III (16 eyes in stage III). All patients received three initial monthly intravitreal injections (0.5 mg) of ranibizumab and were monitored monthly for 12 months. Reinjection of ranibizumab after three initial monthly doses was administered on as-needed basis. The main outcome measures were the change in the mean of best-corrected Snellen visual acuity (BCVA) and central macular thickness (CMT), and the total number of injections received during the 12 months. Results The mean change in BCVA at 12 months was-0.286,-0.165, and-0.151 (logMAR) in Group I, II, and III, respectively. CMT was also reduced by a mean of 32.72 ± 56.75, 57.45 ± 56.48 and 148.37 ± 98.59 μm. The mean number of injections in Group I was significant lower than those in Group II and III (P < 0.001, P < 0.001, and P = 0.15 for Group I versus Group II, Group I versus Group III, and Group II versus Group III, respectively). Conclusions The 12-month follow-up outcomes suggest that three consecutive loading doses of intravitreal ranibizumab is an effective treatment on early stage (stage I) of RAP. Patients in stage I showed a significantly lower recurrence rate than patients in later stages.
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Affiliation(s)
- Young Gun Park
- Department of Ophthalmology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, #62 Yeouido-dong, Yeongdeungpo-gu, Seoul, 150-713, Korea
| | - Young-Jung Roh
- Department of Ophthalmology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, #62 Yeouido-dong, Yeongdeungpo-gu, Seoul, 150-713, Korea.
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Marques MF, Marques JP, Gil JQ, Costa J, Almeida E, Cachulo MDL, Pires I, Figueira J, Silva R. Long-Term Management of RAP Lesions in Clinical Practice: Treatment Efficacy and Predictors of Functional Improvement. Ophthalmic Res 2015; 55:119-25. [PMID: 26671015 DOI: 10.1159/000441797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 10/19/2015] [Indexed: 11/19/2022]
Abstract
PURPOSE To evaluate the long-term efficacy of ranibizumab in the treatment of retinal angiomatous proliferation (RAP) and to identify predictors of functional outcome. METHODS Retrospective case series comprised 79 eyes of 68 consecutive patients with RAP followed up ≥36 months. Primary end-points were best-corrected visual acuity (BCVA) and central macular thickness (CMT) variation at 36 months and at the last visit. RESULTS Mean follow-up time was 59.8 ± 16.0 months. All eyes were treated with pro re nata ranibizumab, with (n = 33) or without (n = 46) photodynamic therapy (PDT). Stabilization or improvement in BCVA was observed in 50.6% of the patients at 36 months, and in 40.5% at the end of the follow-up, where 20.3% preserved reading vision. A significant decrease in CMT was observed at 36 months (p < 0.001), but not at the end of the follow-up. Geographic atrophy (GA) was present in 59.5% of the eyes at the final visit. Baseline subretinal fluid was associated with better visual outcomes (p = 0.001). Results of combination treatment with intravitreal ranibizumab and PDT did not significantly differ from ranibizumab monotherapy. CONCLUSION Modest functional outcomes can be expected from the long-term treatment of RAP lesions in clinical practice, most likely due to the advent of GA. Baseline subretinal fluid positively correlated with final BCVA.
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Affiliation(s)
- Marco Frederico Marques
- Department of Ophthalmology, Centro Hospitalar e Universitx00E1;rio de Coimbra (CHUC), Coimbra, Portugal
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Long-term visual outcome and prognostic factors of Intravitreal anti-vascular endothelial growth factor treatment for retinal angiomatous proliferation. Graefes Arch Clin Exp Ophthalmol 2015; 254:23-30. [DOI: 10.1007/s00417-015-2993-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 02/26/2015] [Accepted: 03/13/2015] [Indexed: 01/29/2023] Open
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OPTICAL COHERENCE TOMOGRAPHY–BASED RANIBIZUMAB MONOTHERAPY FOR RETINAL ANGIOMATOUS PROLIFERATION IN KOREAN PATIENTS. Retina 2014; 34:2359-66. [DOI: 10.1097/iae.0000000000000225] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Broadhead GK, Hong T, Chang AA. Treating the untreatable patient: current options for the management of treatment-resistant neovascular age-related macular degeneration. Acta Ophthalmol 2014; 92:713-23. [PMID: 24925048 DOI: 10.1111/aos.12463] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 05/06/2014] [Indexed: 02/06/2023]
Abstract
Anti-vascular endothelial growth factor (anti-VEGF) agents represent the current standard of care for neovascular age-related macular degeneration (nAMD). Although effective in a majority of cases, a significant proportion of patients have persisting retinal exudation despite regular anti-VEGF therapy. This exudation is considered to produce poorer visual outcomes in these patients. Some of these patients may have misdiagnosed nAMD variants such as polypoidal choroidal vasculopathy; however, the majority of these eyes have what has been termed treatment-resistant nAMD. Currently, the best way to care for these patients is uncertain. Here, we review the evidence for different approaches to the management of treatment-resistant nAMD, including high-dose anti-VEGF therapy, combination regimes and switching of anti-VEGF agents, and discuss possible therapeutic approaches for patients with treatment-resistant nAMD.
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Affiliation(s)
- Geoffrey K. Broadhead
- Sydney Institute of Vision Science; Sydney NSW Australia
- Save Sight Institute; The University of Sydney; Sydney NSW Australia
| | - Thomas Hong
- Sydney Institute of Vision Science; Sydney NSW Australia
| | - Andrew A. Chang
- Sydney Institute of Vision Science; Sydney NSW Australia
- Save Sight Institute; The University of Sydney; Sydney NSW Australia
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Results of intravitreal ranibizumab with a prn regimen in the treatment of extrafoveal and juxtafoveal neovascular membranes in age-related macular degeneration. Retina 2014; 34:860-7. [PMID: 24756034 DOI: 10.1097/iae.0000000000000007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To evaluate the efficacy of intravitreal ranibizumab with a "pro re nata" regimen in the treatment of nonsubfoveal neovascular membranes secondary to age-related macular degeneration. METHODS Retrospective noncomparative case series. Thirty-one eyes with naive nonsubfoveal neovascularization secondary to age-related macular degeneration were consecutively enrolled and treated with ranibizumab intravitreal injections according to a pro re nata regimen. The follow-up was performed monthly up to 6 months and quarterly up to 2 years (25 patients). Early treatment diabetic retinopathy study best-corrected visual acuity and lesion size analysis with fluorescein angiography were recorded. RESULTS The mean baseline early treatment diabetic retinopathy study best-corrected visual acuity worsened from 20/40 (0.28 logMAR) at baseline to 20/50 (0.42 logMAR) at 1-year follow-up and 20/60 (0.53 logMAR) at 2-year follow-up. The mean lesions size nearly doubled from baseline at the 2-year follow up (1.19-2.47 mm). Twenty-two patients had one or more recurrences at 1-year follow-up. All 25 patients developed a recurrence at 2 years with 7 cases developing a recurrence by 12 months. Twelve cases progressed to subfoveal lesions by the 24-month visit. CONCLUSION Other regimens described in the literature might result in a more the satisfactory outcome using more frequent follow-up and more frequent intravitreal injections.
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Daniel E, Toth CA, Grunwald JE, Jaffe GJ, Martin DF, Fine SL, Huang J, Ying GS, Hagstrom SA, Winter K, Maguire MG. Risk of scar in the comparison of age-related macular degeneration treatments trials. Ophthalmology 2014; 121:656-66. [PMID: 24314839 PMCID: PMC3943618 DOI: 10.1016/j.ophtha.2013.10.019] [Citation(s) in RCA: 209] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 10/11/2013] [Accepted: 10/11/2013] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To describe risk factors for scar in eyes treated with ranibizumab or bevacizumab for neovascular age-related macular degeneration (AMD). DESIGN Prospective cohort study within a randomized clinical trial. PARTICIPANTS Patients with no scar on color fundus photography (CFP) or fluorescein angiography (FA) at enrollment in the Comparison of Age-related Macular Degeneration Treatments Trials (CATT). METHODS Eyes were assigned to ranibizumab or bevacizumab treatment and to 1 of 3 dosing regimens for 2 years. Masked readers assessed CFP and FA. Baseline demographic characteristics, visual acuity, morphologic features on photography and optical coherence tomography (OCT), and genotypes associated with AMD risk were evaluated as risk factors using adjusted hazard ratios (aHRs) and associated 95% confidence intervals (CIs). Scars were classified as fibrotic with well-demarcated elevated mounds of yellowish white tissue or nonfibrotic with discrete flat areas of hyperpigmentation with varying amounts of central depigmentation. MAIN OUTCOME MEASURES Scar formation. RESULTS Scar developed in 480 of 1059 eyes (45.3%) by 2 years. Baseline characteristics associated with greater risk of scarring were predominantly classic choroidal neovascularization (CNV) (aHR, 3.1; CI, 2.4-3.9) versus occult CNV, blocked fluorescence (aHR, 1.4; CI, 1.1-1.8), foveal retinal thickness >212 μm (aHR, 2.4; CI, 1.7-3.6) versus <120 μm, foveal subretinal tissue complex thickness >275 μm (aHR, 2.4; CI, 1.7-3.6) versus ≤75 μm, foveal subretinal fluid (aHR, 1.5; CI, 1.1-2.0) versus no subretinal fluid, and subretinal hyperreflective material (SHRM) (aHR, 1.7; CI, 1.3-2.3) versus no SHRM. Eyes with elevation of the retinal pigment epithelium had lower risk (aHR, 0.6; CI, 0.5-0.8) versus no elevation. Drug, dosing regimen, and genotype had no statistically significant association with scarring. Fibrotic scars developed in 24.7% of eyes, and nonfibrotic scars developed in 20.6% of eyes. Baseline risk factors for the scar types were similar except that eyes with larger lesion size or visual acuity <20/40 were more likely to develop fibrotic scars. CONCLUSIONS Approximately half of eyes enrolled in CATT developed scar by 2 years. Eyes with classic neovascularization, a thicker retina, and more fluid or material under the foveal center of the retina are more likely to develop scar.
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Affiliation(s)
- Ebenezer Daniel
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Cynthia A Toth
- Department of Ophthalmology, Duke University, Durham, North Carolina
| | - Juan E Grunwald
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Glenn J Jaffe
- Department of Ophthalmology, Duke University, Durham, North Carolina
| | | | - Stuart L Fine
- Department of Ophthalmology, University of Colorado-Denver, Aurora, Colorado
| | - Jiayan Huang
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Gui-shuang Ying
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | - Katrina Winter
- Department of Ophthalmology, Duke University, Durham, North Carolina
| | - Maureen G Maguire
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania
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INTRAVITREAL ANTI-VASCULAR ENDOTHELIAL GROWTH FACTOR FOR RETINAL ANGIOMATOUS PROLIFERATION IN TREATMENT-NAIVE EYES. Retina 2014; 34:298-305. [DOI: 10.1097/iae.0b013e3182979e62] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Seidel G, Werner C, Weger M, Steinbrugger I, Haas A. Combination treatment of photodynamic therapy with verteporfin and intravitreal ranibizumab in patients with retinal angiomatous proliferation. Acta Ophthalmol 2013; 91:e482-5. [PMID: 23786546 DOI: 10.1111/aos.12111] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE To investigate the efficacy and safety of initial photodynamic therapy (PDT) with a ranibizumab loading dose of three monthly intravitreal injections and a subsequent PRN ranibizumab regimen in the treatment of retinal angiomatous proliferation (RAP). METHODS In this 12-month prospective case series, 15 patients underwent PDT followed by 3 intravitreal ranibizumab injections at monthly intervals. At monthly follow-up examinations, further single ranibizumab injections were given in case of any intra- or subretinal fluid on optical coherence tomography (OCT), visual loss ≥5 letters or signs of activity on fluorescein or indocyanine green angiography. RESULTS Best-corrected visual acuity (BCVA) improved from 58.1 ± 13.2 at baseline by 9.2 letters (SD ± 8.5; p = 0.004) at 6 months and by 8.7 letters (SD ± 11.4; p = 0.017) at 12 months. Neither at 6 nor at 12 months, any patient had lost ≥15 letters. The mean number of injections per patient was 4.8 (SD ± 1.4) in the first year of therapy after PDT. The average time to first retreatment was 3.7 months (range 1-7 months). No serious adverse events, such as endophthalmitis or retinal detachment, were noted. CONCLUSION PDT with 3 ranibizumab loading injections and subsequent ranibizumab as needed resulted in a significant gain of 8.7 ± 11.4 letters at month 12. This regimen is safe and efficacious, but even in a population of mostly early stages of RAP, retreatment rates remained high.
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Affiliation(s)
- Gerald Seidel
- Department of Ophthalmology, Medical University of Graz, Austria.
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