Study Results
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Basic Information
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COMPLETED
140 participants
OBSERVATIONAL
2018-04-01
2018-09-01
Brief Summary
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Detailed Description
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Conditions
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Study Design
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CASE_CONTROL
OTHER
Study Groups
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preterm infants without ROP
cycloplegic refraction
Cycloplegic refraction and the average corneal radius of curvature were performed using a handheld auto kerato-refractometer (Righton Retinomax K-plus2). Refraction was confirmed by retinoscopy and refractive errors were calculated as spherical equivalent and astigmatism in cylinder.
The biometric optic components, including anterior chamber depth, lens thickness, and axial length, were measured using A-scan ultrasound (model Echoscan US-4000 / 500; Nidek).
preterm infants with regressed ROP
cycloplegic refraction
Cycloplegic refraction and the average corneal radius of curvature were performed using a handheld auto kerato-refractometer (Righton Retinomax K-plus2). Refraction was confirmed by retinoscopy and refractive errors were calculated as spherical equivalent and astigmatism in cylinder.
The biometric optic components, including anterior chamber depth, lens thickness, and axial length, were measured using A-scan ultrasound (model Echoscan US-4000 / 500; Nidek).
preterm infants with threshold ROP
cycloplegic refraction
Cycloplegic refraction and the average corneal radius of curvature were performed using a handheld auto kerato-refractometer (Righton Retinomax K-plus2). Refraction was confirmed by retinoscopy and refractive errors were calculated as spherical equivalent and astigmatism in cylinder.
The biometric optic components, including anterior chamber depth, lens thickness, and axial length, were measured using A-scan ultrasound (model Echoscan US-4000 / 500; Nidek).
full-term infants
cycloplegic refraction
Cycloplegic refraction and the average corneal radius of curvature were performed using a handheld auto kerato-refractometer (Righton Retinomax K-plus2). Refraction was confirmed by retinoscopy and refractive errors were calculated as spherical equivalent and astigmatism in cylinder.
The biometric optic components, including anterior chamber depth, lens thickness, and axial length, were measured using A-scan ultrasound (model Echoscan US-4000 / 500; Nidek).
Interventions
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cycloplegic refraction
Cycloplegic refraction and the average corneal radius of curvature were performed using a handheld auto kerato-refractometer (Righton Retinomax K-plus2). Refraction was confirmed by retinoscopy and refractive errors were calculated as spherical equivalent and astigmatism in cylinder.
The biometric optic components, including anterior chamber depth, lens thickness, and axial length, were measured using A-scan ultrasound (model Echoscan US-4000 / 500; Nidek).
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Three control groups with age and sex matched were included for comparison. First group included premature infants who had ROP that regressed spontaneously without intervention. Second group was corresponded to premature infants who were diagnosed to have normal retinal vasculature from the first examination after birth. The third group belonged to full term babies
Exclusion Criteria
ALL
No
Sponsors
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Ameera Gamal Abdelhameed
OTHER
Responsible Party
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Ameera Gamal Abdelhameed
Lecturer of Ophthalmology
Principal Investigators
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Rania MR Bassiouny, MD
Role: PRINCIPAL_INVESTIGATOR
Mansoura University
Locations
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Mansoura University
Al Mansurah, Dakahlia Governorate, Egypt
Countries
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References
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Zin A, Gole GA. Retinopathy of prematurity-incidence today. Clin Perinatol. 2013 Jun;40(2):185-200. doi: 10.1016/j.clp.2013.02.001.
Isaza G, Arora S, Bal M, Chaudhary V. Incidence of retinopathy of prematurity and risk factors among premature infants at a neonatal intensive care unit in Canada. J Pediatr Ophthalmol Strabismus. 2013 Jan-Feb;50(1):27-32. doi: 10.3928/01913913-20121127-02. Epub 2012 Dec 4.
Lin CJ, Chen SN, Tseng CC, Chang YC, Hwang JF. Effects of ranibizumab on very low birth weight infants with stage 3 retinopathy of prematurity: A preliminary report. Taiwan Journal of Ophthalmology 2012; 2: 136-139
Menke MN, Framme C, Nelle M, Berger MR, Sturm V, Wolf S. Intravitreal ranibizumab monotherapy to treat retinopathy of prematurity zone II, stage 3 with plus disease. BMC Ophthalmol. 2015 Mar 8;15:20. doi: 10.1186/s12886-015-0001-7.
Bassiouny, RaniaM.R. & Ellakkany, RasheedS & Aboelkhair, SamyA & Mohsen, TarekA & Othman, IhabS. (2017). Incidence and risk factors of retinopathy of prematurity in neonatal intensive care units: Mansoura, Egypt. Journal of the Egyptian Ophthalmological Society. 110. 71. 10.4103/ejos.ejos_25_17.
Castellanos MA, Schwartz S, Garcia-Aguirre G, Quiroz-Mercado H. Short-term outcome after intravitreal ranibizumab injections for the treatment of retinopathy of prematurity. Br J Ophthalmol. 2013 Jul;97(7):816-9. doi: 10.1136/bjophthalmol-2012-302276. Epub 2012 Dec 8.
Chen YC, Chen SN, Yang BC, Lee KH, Chuang CC, Cheng CY. Refractive and Biometric Outcomes in Patients with Retinopathy of Prematurity Treated with Intravitreal Injection of Ranibizumab as Compared with Bevacizumab: A Clinical Study of Correction at Three Years of Age. J Ophthalmol. 2018 Mar 11;2018:4565216. doi: 10.1155/2018/4565216. eCollection 2018.
World Medical Association. World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA. 2013 Nov 27;310(20):2191-4. doi: 10.1001/jama.2013.281053. No abstract available.
Cook A, White S, Batterbury M, Clark D. Ocular growth and refractive error development in premature infants with or without retinopathy of prematurity. Invest Ophthalmol Vis Sci. 2008 Dec;49(12):5199-207. doi: 10.1167/iovs.06-0114.
Dawson DG, Watsky MA, Geroski DH, Edelhauser HF. Cornea and sclera. In: Tasman W, Jaeger EA, editors. Duane's ophthalmology [CD-ROM]. Philadelphia: Lippincott Williams & Wilkins; 2007. Chapter 4
Other Identifiers
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Intravitreal Ranibizumab
Identifier Type: -
Identifier Source: org_study_id
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