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Ortiz-Seller A, Martorell P, Barranco H, Pascual-Camps I, Morcillo E, Ortiz JL. Comparison of different agents and doses of anti-vascular endothelial growth factors (aflibercept, bevacizumab, conbercept, ranibizumab) versus laser for retinopathy of prematurity: A network meta-analysis. Surv Ophthalmol 2024; 69:585-605. [PMID: 38432359 DOI: 10.1016/j.survophthal.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 02/10/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Laser photocoagulation (LPC) and/or intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections constitute the current standard treatment for retinopathy of prematurity (ROP). This network meta-analysis focus on whether a ranking of interventions may be established for different dose levels of intravitreal injection of anti-VEGF agents (aflibercept, bevacizumab, conbercept, ranibizumab) as primary treatments for ROP versus laser in terms of retreatment rate as primary outcome, and time to retreatment and refractive error as secondary endpoints, since best anti-VEGF dosage remains under debate. Sixty-eight studies (15 randomized control trials and 53 nonrandomized studies) of 12,356 eyes of 6445 infants were retrieved from databases (2005 Jan. - 2023 June). Studies were evaluated for model fit, risk of bias and confidence of evidence in Network Meta-Analysis (CINeMA). Bayesian NMA showed that anti-VEGF drugs were not inferior to laser in terms of retreatment rate. For intravitreal bevacizumab (IVB), doses half of the conventional infant dose showed a low risk of retreatment rate (risk ratio (RR) of 1.43; 95% credible interval (CrI): 0.508, 4.03). On probability ranking as surface under the cumulative ranking curve (SUCRA) plot, half dose of bevacizumab had a better position than conventional and augmented (1.2-2 times the regular dose) doses. A similar probability trend was observed for half vs. conventional doses of aflibercept and ranibizumab. Conventional infant dose of conbercept showed the lowest risk for retreatment (RR 0.846; 95% CrI: 0.245, 2.91). For secondary endpoints, lower doses of anti-VEGF agents were associated with shorter times to retreatment. The largest changes were noted for the augmented doses of bevacizumab and ranibizumab (0.3 mg) with means of 14.1 weeks (95% CrI: 6.65, 21.6) and 12.8 weeks (95% CrI: 3.19, 20.9), respectively. Finally, NMA demonstrated better refractive profile for anti-VEGF than laser therapy, especially for the conventional infant doses of bevacizumab and ranibizumab which exhibited a significantly better refractive profile than LPC, with mean differences of 1.67 (spherical equivalent - diopters) (95% CrI: 0.705, 2.67) and 2.19 (95% CrI: 0.782, 3.59), respectively. In the SUCRA plots, LPC had a markedly different position with a higher probability for myopia. Further clinical trials comparing different intravitreal doses of anti-VEGF agents are needed, but our findings suggest that low doses of these drugs retain efficacy and may reduce ocular and systemic undesired events.
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Affiliation(s)
- Amparo Ortiz-Seller
- Unit of Paediatric Ophthalmology and Strabismus, Oftalvist Clinic, Valencia, Spain
| | - Pablo Martorell
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, Spain
| | - Honorio Barranco
- Unit of Paediatric Ophthalmology and Strabismus, La Fe University and Polytechnic Hospital of Valencia, Spain
| | - Isabel Pascual-Camps
- Unit of Paediatric Ophthalmology and Strabismus, La Fe University and Polytechnic Hospital of Valencia, Spain
| | - Esteban Morcillo
- Health Research Institute (INCLIVA) of the Clinic University Hospital of Valencia and Department of Pharmacology, Faculty of Medicine, Universitat de València, Spain
| | - José L Ortiz
- Department of Pharmacology, Faculty of Medicine, Universitat de València, Spain.
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Hellström A, Smith LEH, Hård AL. ROP: 80 Years after Its Detection - Where Do We Stand and How Long Will We Continue to Laser? Neonatology 2024:1-8. [PMID: 38776885 DOI: 10.1159/000538907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 04/11/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Retinopathy of prematurity (ROP), a potentially blinding disease, is increasing worldwide because of the increased survival of extremely preterm and preterm infants born where oxygen monitoring and ROP screening programs are insufficient. Repeated retinal examinations are stressful for infants, and laser photocoagulation treatment for sight-threatening ROP is destructive. The use of anti-VEGF agents instead of lasers is widespread but requires a long-term follow-up because of late recurrence of the disease. In addition, the optimal anti-VEGF agent dosage and long-term systemic effects require further study. SUMMARY Interventions preventing ROP would be far preferable, and systemic interventions might promote better development of the brain and other organs. Interventions such as improved oxygen control, provision of fresh maternal milk, supplementation with arachidonic acid and docosahexaenoic acid, and fetal hemoglobin preservation by reducing blood sample volumes may help prevent ROP and reduce the need for treatment. Free readily available online tools to predict severe ROP may reduce unnecessary eye examinations and select, for screening, those at a high risk of needing treatment. KEY MESSAGES Treatment warranting ROP is a sign of impaired neurovascular development in the central nervous system. Preventative measures to improve the outcomes are available. Screening can be refined using tools that can predict severe ROP. Laser treatment and anti-VEGF agents are valuable treatment modalities that may complement each other in recurrent ROP.
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Affiliation(s)
- Ann Hellström
- Department of Clinical Neuroscience, Institution of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lois E H Smith
- The Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Anna-Lena Hård
- Department of Clinical Neuroscience, Institution of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,
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Marlow N, Reynolds JD, Lepore D, Fielder AR, Stahl A, Hao H, Weisberger A, Lodha A, Fleck BW. Ranibizumab versus laser therapy for the treatment of very low birthweight infants with retinopathy of prematurity (RAINBOW): five-year outcomes of a randomised trial. EClinicalMedicine 2024; 71:102567. [PMID: 38638400 PMCID: PMC11024572 DOI: 10.1016/j.eclinm.2024.102567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 04/20/2024] Open
Abstract
Background Concerns remain over the long-term safety of vascular endothelial growth factor (VEGF) inhibitors to treat retinopathy of prematurity (ROP). RAINBOW is an open label randomised trial comparing intravitreal ranibizumab (in 0.2 mg and 0.1 mg doses) with laser therapy in very low birthweight infants (<1500 g) with ROP. Methods Of 201 infants completing RAINBOW, 180 were enrolled in the RAINBOW Extension Study. At 5 years, children underwent ophthalmic, development and health assessments. The primary outcome was visual acuity in the better-seeing eye. The study is registered with ClinicalTrial.gov, NCT02640664. Findings Between 16-6-2016 and 21-4-2022, 156 children (87%) were evaluated at 5 years. Of 32 children with no acuity test result, 25 had a preferential looking test, for 4 children investigators reported low vision for each eye, and in 3 further children no vision measurement was obtained. 124 children completed the acuity assessment, the least square mean (95% CI) letter score in the better seeing eye was similar in the three trial arms-66.8 (62.9-70.7) following ranibizumab 0.2 mg, 64.6 (60.6-68.5) following ranibizumab 0.1 mg and 62.1 (57.8-66.4) following laser therapy; differences in means: ranibizumab 0.2 mg v laser: 4.7 (95% CI: -1.1, 10.5); 0.1 mg v laser: 2.5 (-3.4, 8.3); 0.2 mg v 0.1 mg: 2.2 (-3.3, 7.8). High myopia (worse than -5 dioptres) in at least one eye occurred in 4/52 (8%) children following ranibizumab 0.2 mg, 8/55 (15%) following ranibizumab 0.1 mg and 11/45 (24%) following laser therapy (0.2 mg versus laser: odds ratio: 3.99 (1.16-13.72)). Ocular and systemic secondary outcomes and adverse events were distributed similarly in each trial arm. Interpretation 5-year outcomes confirm the findings of the original RAINBOW trial and a planned interim analysis at 2 years, including a reduced frequency of high myopia following ranibizumab treatment. No effects of treatment on non-ocular outcomes were detected. Funding Novartis Pharma AG.
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Affiliation(s)
- Neil Marlow
- UCL Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK
| | - James D. Reynolds
- Ross Eye Institute, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, USA
| | - Domenico Lepore
- Department of Neuroscience, Sensory Organs and Thorax, Catholic University of the Sacred Heart, Gemelli Foundation IRCSS, Rome, Italy
| | | | - Andreas Stahl
- Department of Ophthalmology, University Medical Center Greifswald, Germany
| | - Han Hao
- China Novartis Institutes for BioMedical Research Company Ltd
| | | | - Amit Lodha
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | - Brian W. Fleck
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
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Chen J, Hao Q, Zhang J, Du Y, Chen H, Cheng X. The efficacy and ocular safety following aflibercept, conbercept, ranibizumab, bevacizumab, and laser for retinopathy of prematurity: a systematic review and meta-analysis. Ital J Pediatr 2023; 49:136. [PMID: 37814332 PMCID: PMC10561404 DOI: 10.1186/s13052-023-01543-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 09/26/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND Retinopathy of prematurity (ROP) is typically treated with laser photocoagulation and/or intravitreal anti-vascular endothelial growth factor (anti-VEGF). To the best of our knowledge, most systematic reviews have focused on comparing anti-VEGF against laser treatment while comparisons between different anti-VEGF agents are lacking. Thus, we conducted this meta-analysis to compare the efficacy and safety of different anti-VEGF agents or laser after primary ROP therapy. METHODS We conducted a comprehensive search across multiple databases up to November 2022. We included studies that used anti-VEGF or laser for ROP with comparable cohorts. RESULTS Overall, 44 studies were included in this meta-analysis. When comparing anti-VGEF with laser, we found that the anti-VEGF group had a significantly higher retreatment rate (RR = 1.56, 95%CI = [1.06, 2.31], p = 0.03), a longer time from treatment to retreatment (WMD = 5.99 weeks, 95%CI = [4.03, 7.95], p < 0.001), a lower retinal detachment rate (RR = 0.55, 95%CI = [0.30, 0.91], p = 0.02), higher spherical equivalent (WMD = 1.69D, 95%CI = [0.61, 2.77], p = 0.002), lower myopia rate (RR = 0.69, 95%CI = [0.50, 0.97], p = 0.03) and lower anisometropia rate (RR = 0.44, 95%CI = [0.29, 0.67], p = 0.0001). In comparisons between ranibizumab and bevacizumab, the intravitreal ranibizumab (IVR) group was associated with higher recurrence rate (RR = 2.02, 95%CI = [1.49, 2.73], p < 0.0001), higher retreatment rate (RR = 1.70, 95%CI = [1.17, 2.47], p = 0.0006), and lower high myopia rate (RR = 0.31, 95%CI = [0.12, 0.77], p = 0.01). Similarly, when compared to aflibercept and conbercept, the IVR cohort also demonstrated higher recurrence and retreatment rates. While no significant differences were observed in any of the variables included in the statistical analysis in the comparison between bevacizumab and aflibercept. CONCLUSIONS Anti-VEGF was associated with higher retreatment and lesser incidence of myopia as compared to laser. Laser therapy was linked to more complications like retinal detachment and myopia. Ranibizumab exhibited higher recurrence and retreatment rates compared to bevacizumab, aflibercept, and conbercept.
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Affiliation(s)
- Jing Chen
- Department of Neonatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Qingfei Hao
- Department of Neonatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Jing Zhang
- Department of Neonatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Yanna Du
- Department of Neonatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Haoming Chen
- Department of Neonatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Xiuyong Cheng
- Department of Neonatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China.
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Hartnett ME, Stahl A. Laser versus Anti-VEGF: A Paradigm Shift for Treatment-Warranted Retinopathy of Prematurity. Ophthalmol Ther 2023; 12:2241-2252. [PMID: 37337024 PMCID: PMC10442041 DOI: 10.1007/s40123-023-00744-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/23/2023] [Indexed: 06/21/2023] Open
Abstract
Retinopathy of prematurity (ROP), a leading cause of childhood blindness, has historically been associated with blindness from overgrowth of blood vessels from the retina into the vitreous that lead to complex retinal detachments. Our understanding of ROP has evolved with the survival of extremely low-birthweight infants and includes not only overgrowth of blood vessels, but also insufficient developmental retinal vascular growth in early phases of the disease. Our current treatments of ROP have focused on methods to improve perinatal and prenatal care, reduce premature birth, and prevent early phases of ROP. Nonetheless, addressing vasoproliferation in treatment-warranted eyes remains the mainstay of management. Two main treatment strategies co-exist today: laser treatment, which has been the standard of care since the 1990s, and anti-VEGF injections, which have been used since early reports in 2007 (Travassos et al. in Ophthalmic Surg Lasers Imaging, 38:233-237, https://doi.org/10.3928/15428877-20070501-09 , 2007, Shah et al. in Indian J Ophthalmol 55:75-76, https://doi.org/10.4103/0301-4738.29505 , 2007, Quiroz-Mercado et al. in Semin Ophthalmol 22:109-125, https://doi.org/10.1080/08820530701420082 , 2007).
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Affiliation(s)
- M. Elizabeth Hartnett
- Byers Eye Institute at Stanford University, Stanford University, 2452 Watson Court, Palo Alto, CA 94303 USA
| | - Andreas Stahl
- Chair for Ophthalmology, University Medicine Greifswald, Germany, Ferdinand Sauerbruch Strasse, 17475 Greifswald, Germany
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Wu PY, Chen HC, Hsueh YJ, Chen KJ, Wang NK, Liu L, Chen YP, Hwang YS, Lai CC, Wu WC. Corneal topography in preterm children aged 2 years to 12 years with or without retinopathy of prematurity. Eye (Lond) 2023; 37:2565-2572. [PMID: 36593346 PMCID: PMC10397294 DOI: 10.1038/s41433-022-02375-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 12/01/2022] [Accepted: 12/16/2022] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVES To evaluate corneal topography in full-term and preterm children with or without retinopathy of prematurity (ROP). METHODS We enrolled children aged from 2 years to 12 years between January 2019 and May 2021 in the following four groups: full-term (group 1), premature without ROP (group 2), untreated premature with ROP (group 3), and laser-treated and/or intravitreal injection (IVI) of anti-vascular endothelial growth factor (VEGF)-treated premature with ROP (group 4). Corneal topography was measured with the Galilei Placido-dual Scheimpflug analyzer G4 every half year, and was compared among the groups using generalized estimating equation models at approximately 7 years of age. RESULTS We included 77, 178, 45, and 131 participants in groups 1, 2, 3, and 4, respectively. The mean (standard deviation) number of visits per patient was 2.9 (1.4). Compared with full-term eyes, premature eyes demonstrated steeper anterior corneal curvature (p = 0.016 and p = 0.008 for the mean and steep K, respectively), higher anterior and posterior corneal astigmatism (p = 0.036 and p = 0.016, respectively), and thinner thinnest pachymetry (p < 0.001). The laser-treated ROP eyes displayed steeper anterior corneal curvature (p = 0.040 for steep K) and higher anterior corneal astigmatism (p = 0.005) than the IVI-treated eyes. Moreover, they exhibited high cone location and magnitude index (1.96) reaching the cut-off for detecting keratoconus (1.82). CONCLUSIONS The premature status led to greater corneal ectasia, and laser treatment for ROP caused further corneal steepness. Higher anterior corneal astigmatism was associated with laser treatment. The ROP pathology and IVI anti-VEGF treatment exerted a marginal effect on corneal topography.
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Affiliation(s)
- Po-Yi Wu
- Department of Education, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan
| | - Hung-Chi Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- Center for Tissue Engineering, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Yi-Jen Hsueh
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- Center for Tissue Engineering, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
| | - Kuan-Jen Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Nan-Kai Wang
- Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia University Irving Medical Center, Columbia University, New York, NY, USA
| | - Laura Liu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Yen-Po Chen
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
- Department of Ophthalmology, Tucheng Municipal Hospital, New Taipei, 236, Taiwan
| | - Yih-Shiou Hwang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
- Department of Ophthalmology, Jen-Ai Hospital Dali Branch, Taichung, 412, Taiwan
| | - Chi-Chun Lai
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan
- Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung Branch, Keelung, 204, Taiwan
| | - Wei-Chi Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.
- College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
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Pawar N, Somyashree D, Meenakshi R, Maheshwari D, Mohideen S, Uduman MS. Refractive profile of children treated with intravitreal bevacizumab for retinopathy of prematurity. Indian J Ophthalmol 2023; 71:2561-2568. [PMID: 37322680 PMCID: PMC10417983 DOI: 10.4103/ijo.ijo_1209_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 09/22/2022] [Accepted: 03/13/2023] [Indexed: 06/17/2023] Open
Abstract
Purpose To study the refractive profile of children after they received intravitreal injection of bevacizumab for retinopathy of prematurity (ROP). Methods The study was conducted at a tertiary eye care hospital in South India. ROP patients of more than 1 year of age, presenting to the Pediatric Ophthalmology Clinic and Retina Clinic and having history of treatment for type I ROP with intravitreal bevacizumab (IVB) or intravitreal bevacizumab and laser photocoagulation were included in the study. Cycloplegic refraction was done, and the refractive status was evaluated. The refractive status of age-matched, full-term children with uneventful perinatal and neonatal history was also recorded and compared to the study group. Results Among 134 eyes of 67 study subjects, the major refractive error was myopia in 93 eyes (69.4%; spherical equivalent [SE] = -2.89 ± 3.1, range = -11.5 to -0.5 D). There were 75 eyes (56%) with low-to-moderate myopia; high myopia was seen in 13.4%, emmetropia in 18.7%, and hypermetropia in 11.9% of eyes. The majority of them (87%) had with-the-rule (WTR) astigmatism. In 134 eyes, the SE was -1.78 ± 3.2 (range = -11.5 to 4 D); the SE of the 75 eyes with low-to-moderate myopia was -1.53 ± 1.2 (range = -0.50 to -5 D). In the control group, the majority had emmetropia (91.8%). There was no significant association between the age at which IVB had been injected and the development of refractive errors (P = 0.078). The prevalence of low-to-moderate myopia was more than high myopia in patients with zone I and zone II ROP before treatment (60.0% and 54.5%, respectively). Conclusion Myopia was the major refractive error seen in post-IVB pediatric patients. WTR astigmatism was more commonly seen. The age at which IVB injection had been given had no effect on the development of refractive errors.
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Affiliation(s)
- Neelam Pawar
- Pediatric Ophthalmology and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India
| | - D Somyashree
- Pediatric Ophthalmology and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India
| | - R Meenakshi
- Pediatric Ophthalmology and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India
| | - Devendra Maheshwari
- Pediatric Ophthalmology and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India
| | - Syed Mohideen
- Pediatric Ophthalmology and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India
| | - Mohammed Sithiq Uduman
- Pediatric Ophthalmology and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India
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Kıran Yenice E, Petriçli İS, Kara C. One-year refractive outcomes after intravitreal bevacizumab versus laser photocoagulation for retinopathy of prematurity. Int Ophthalmol 2022:10.1007/s10792-022-02615-9. [DOI: 10.1007/s10792-022-02615-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/07/2022] [Indexed: 12/16/2022]
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Alzuabi AK, Alshammari OM, Almousa AN, Abouammoh MA. Anti-vascular endothelial growth factor therapy in retinopathy of prematurity: An updated literature review. Saudi J Ophthalmol 2022; 36:260-269. [PMID: 36276253 PMCID: PMC9583351 DOI: 10.4103/sjopt.sjopt_12_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/04/2022] Open
Abstract
Laser photocoagulation can still be considered the gold standard for treatment for retinopathy of prematurity (ROP). However, anti-vascular endothelial growth factor (anti-VEGF) therapy has increasingly become an important option that plays a significant role in the treatment of ROP. Major clinical trials have been published regarding the anti-VEGF use in ROP, along with multiple other studies looking into the different agents, doses, techniques, and possible complications. Anti-VEGF therapies can be considered as a safe and effective option for managing ROP. More longitudinal randomized clinical trials are necessary to evaluate the preferred treatment agent, the appropriate dose, best follow-up protocol, and the long-term ocular and systemic outcomes following treatment.
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Affiliation(s)
- Asma K. Alzuabi
- Department of Ophthalmology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ola M. Alshammari
- Department of Medical Education, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
| | - Abdullah N. Almousa
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Marwan A. Abouammoh
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia,Address for correspondence: Prof. Marwan A. Abouammoh, Department of Ophthalmology, College of Medicine, King Saud University, P.O. Box 245, Riyadh 11411, Saudi Arabia. E-mail:
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A systematic review and meta-analysis of preanalytical factors and methodological differences influencing the measurement of circulating vascular endothelial growth factor. PLoS One 2022; 17:e0270232. [PMID: 35793362 PMCID: PMC9258884 DOI: 10.1371/journal.pone.0270232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 06/06/2022] [Indexed: 11/25/2022] Open
Abstract
Background Intraocular treatment with antibodies targeting vascular endothelial growth factor (anti-VEGF) inhibits pathological vessel growth in adults and preterm infants. Recently, concerns regarding the impact of anti-VEGF treatment on systemic VEGF levels in preterm infants have been raised. Earlier studies suggest that preanalytical and methodological parameters impact analytical VEGF concentrations, but we have not found a comprehensive systematic review covering preanalytical procedures and methods for VEGF measurements. Objective This review aimed to evaluate the most critical factors during sample collection, sample handling, and the analytical methods that influence VEGF levels and therefore should be considered when planning a prospective collection of samples to get reproducible, comparable results. Material and methods PubMed and Scopus databases were searched 2021/Nov/11. In addition, identification of records via other methods included reference, citation, and Google Scholar searches. Rayyan QCRI was used to handle duplicates and the selection process. Publications reporting preanalytical handling and/or methodological comparisons using human blood samples were included. Exclusion criteria were biological, environmental, genetic, or physiological factors affecting VEGF. The data extraction sheets included bias assessment using the QUADAS-2 tool, evaluating patient selection, index-test, reference standard, and flow and timing. Concentrations of VEGF and results from statistical comparisons of analytical methods and/or preanalytical sample handling and/or different sample systems were extracted. The publications covering preanalytical procedures were further categorized based on the stage of the preanalytical procedure. Meta-analysis was used to visualize VEGF concentrations among healthy individuals. The quality of evidence was rated according to GRADE. Results We identified 1596 publications, and, after the screening process, 43 were considered eligible for this systematic review. The risk of bias estimation was difficult for 2/4 domains due to non-reported information. Four critical steps in the preanalytical process that impacted VEGF quantification were identified: blood drawing and the handling before, during, and after centrifugation. Sub-categorization of those elements resulted in nine findings, rated from moderate to very low evidence grade. The choice of sample system was the most reported factor. VEGF levels (mean [95% CI]) in serum (n = 906, 20 publications), (252.5 [213.1–291.9] pg/mL), were approximated to ninefold higher than in plasma (n = 1122, 23 publications), (27.8 [23.6–32.1] pg/mL), based on summarized VEGF levels with meta-analysis. Notably, most reported plasma levels were below the calibration range of the used method. Conclusion When measuring circulating VEGF levels, choice of sample system and sample handling are important factors to consider for ensuring high reproducibility and allowing study comparisons. Protocol: CRD42020192433
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