Abstract
Objective: The objective of this study is to validate the reliability of early postnatal weight gain as an accurate predictor of type 1 retinopathy of prematurity (ROP) requiring treatment in a large predominantly Hispanic US cohort with the use of an online tool called WINROP (weight, neonatal retinopathy of prematurity (IGF-1), neonatal retinopathy of prematurity).Study design: Retrospective cohort study consisted of preterm infants <32 weeks gestation and birth weight <1500 g. Weekly weights to 36 weeks post-menstrual age or discharge if earlier were entered into the WINROP tool. This tool generated alarm and risk indicator for developing ROP. The infants with type 1 ROP requiring treatment as well as all stages of ROP were compared with the alarms and risks generated by WINROP tool.Results: A total of 492 infants were entered into the WINROP tool. The infants who developed type 1 ROP requiring treatment, the WINROP tool detected 80/89 (90%) at less than 32 weeks gestation. Nine infants developed type 1 ROP were classified as low risk and did not alarm.Conclusions: Postnatal weight gain alone, in predominantly Hispanic US population, predicted type 1 ROP requiring treatment before 32 weeks of gestation in infants with a sensitivity of 90%. The tool appeared to identify majority of affected infants much earlier than the scheduled screening.
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