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Incidence and risk factors of retinopathy of prematurity and utility of the national screening criteria in a tertiary center in Iran

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International Journal of Ophthalmology(English edition) 2019年第8期12卷 1330-1336页

作者： Milad Khorshidifar Homayoun Nikkhah Alireza Ramezani Morteza Entezari NarsisDaftarian Hamid Norouzi mansoor shahiari Mitra Radfar Ramin Norinia Saeed Karimi Clinical Research Development Unit of Torfe Medical Center Shahid Beheshti University of Medical SciencesTehran***Iran Department of Ophthalmology Imam Hossein HospitalShahid Beheshti University of Medical SciencesTehran***Iran Ophthalmic Research Center Shahid Beheshti University ofMedical SciencesTehran16666Iran Ophthalmic Epidemiology Research Center Shahid BeheshtiUniversity of Medical SciencesTehran16666Iran

AIM: To determine the incidence and risk factors of retinopathy of prematurity(ROP) and the sensitivity of current screening criteria in a tertiary eye center in Tehran, Iran. METHODS: In a cross-sectional observational study, neonates weighing ≤2000 grams at birth or born <34 wk gestational age(GA) and all other infants at risk of ROP admitted to the neonatal intensive care unit(NICU) or referred to our ROP clinic were investigated. The incidence of ROP and severe ROP(i.e. patients needing treatment) were determined. The associations between risk factors and the development and severity of ROP were assessed. We also examined the sensitivity of the current national screening guideline in Iran. RESULTS: Among 207 infants, the incidence of ROP and severe ROP was 33.3% and 11.1%, respectively. Mean GA and birth weight(BW) were significantly lower in ROP vs non-ROP infants(29±2 wk vs 33±3 wk, P<0.001;1274±489 g vs 1916±550 g, P<0.001, respectively). Univariate analysis displayed significant association between ROP incidence and GA, BW, NICU admission period, blood transfusion, surfactant usage, sepsis, intraventricular hemorrhage and patent ductus arteriosus(P<0.05 for all). BW [relative risk(RR): 0.857(0.711-0.873), P<0.001], GA [RR: 0.788(0.711-0.873), P<0.001] and blood transfusion [RR: 1.888(0.995-3.583), P=0.052] were independent ROP risk factors. The sensitivity of country-specific screening guidelines was 95.7% and 100% for overall and severe ROP detection, respectively. CONCLUSION: ROP incidence is relatively high in Iran. Identifying ROP risk factors results in more accurate screening and reduces the risk of irreversible vision loss. The ROP screening criteria utilized in Iran are efficient at the present time.

关键词： retinopathy of prematurity incidence risk factors screening Iran

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