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Neonatal Med > Volume 21(3); 2014 > Article
Neonatal Medicine 2014;21(3):179-185.
DOI: https://doi.org/10.5385/nm.2014.21.3.179    Published online August 30, 2014.
Retinopathy of Prematurity in Infants with Birth Weights Greater than 1,000 Grams.
Soo Young Choi, Ga Young Park, Shin Ae Yoon, Ji Young Chun, So Yoon Ahn, Hye Soo Yoo, Se In Sung, Yun Sil Chang, Won Soon Park
Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea. pharm24@hanmail.net
Abstract
PURPOSE
To understand the incidence of retinopathy of prematurity (ROP) in preterm infants with birth weights more than 1,500 g or gestational age 30 weeks, and/or unstable clinical course, we investigated the highest gestational age and birth weight of preterm infants who require ROP treatment and those who do not.
METHODS
The subjects were preterm infants admitted in Samsung medical center between January 1, 2000 and December 31, 2013. We retrospectively reviewed the medical records of 847 premature infants whose birth weights were more than 1,000 g.
RESULTS
Of the 847 infants, 105 (12.4%) had stage 1 ROP, 54 (6.4%) had stage 2, 31 (3.7%) had stage 3, 0 had stage 4, and 2 (0.2%) had stage 5 ROP. Thirty-three (3.9%) of the 847 infants developed stage 3-5 ROP. Twenty (2.4%) of these 33 (3.9%) stage 3-5 ROP infants required treatment. Among the stage 1-3 ROP infants who did not require treatment, the highest gestational age was 37(+1) weeks (stage 1) and birth weight was 2,362 g (stage 1). Among the stage 3-5 ROP infants who needed treatment, the highest gestational age was 32 weeks and birth weight was 1,495 g.
CONCLUSIONS
Newborn infants with gestational age more than 38 weeks or birth weight more than 2,400 g did not develop ROP even if they had an unstable clinical course. In our study, no preterm infants with gestational age more than 33 weeks or birth weight more than 1,500 g required ROP treatment.
Key Words: Retinopathy of prematurity, Birth weight, Screening criteria


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