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Examination of retinopathy of prematurity requiring retinal photocoagulation Seiya Fukuoka 1 , Kota Yokoyama 1 , Yuta Saito 1 , Hidetoshi Onda 1 1Department of Ophthalmology, Showa University School of Medicine pp.1247-1251
Published Date 2021/9/15
DOI https://doi.org/10.11477/mf.1410214103
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Abstract Purpose:To investigate the risk factors of retinopathy of prematurity(ROP)requiring retinal photocoagulation.

Subjects and methods:Among 495 newborns born at Showa University Hospital from January 2014 to December 2019 with either birth weight less than 1,800 g, gestational age less than 34 weeks, or requiring oxygen administration after birth, 85 patients who developed ROP were included. ROP was classified using the international classification, and the onset was Stage 1 or higher. Retinal photocoagulation(PC)was performed at the pre-threshold ROP. Birth weight and gestational age were compared between groups with and without PC. Multivariate analysis was performed on the presence or absence systemic complications' such as the Apgar score at 1 minute, blood transfusion, artificial respiration for 60 days or more, sepsis, neonatal respiratory distress syndrome, chronic lung disease, patent ductus arteriosus, intraventricular hemorrhage, and periventricular leukomalacia in cases requiring PC.

Results:Thirty-two patients(38%)of the 85 patients with ROP were in the PC group. Birth weight was significantly lower(p<0.01), and gestational age was shorter(p<0.01)in the PC group than in the non-PC group. Multivariate analysis of systemic complications associated with PC showed that the PC group had significantly more blood transfusion, artificial ventilation for 60 days or more, and chronic lung disease than the non-PC group.

Conclusion:We estimated that blood transfusion, artificial ventilation for 60 days or more, and chronic lung disease were associated with the aggravation of the factors of ROP. Cases with systemic complications that cause tissue hypoxia require closer observation.


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