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1981年2月〜1992年3月に東邦大学NICUに入院した2,500g未満,1,849例中,眼科検査を施行した1,063例の未熟児網膜症(retinopathy of prematurity:ROP)発症の動向と治療に関して検討した。
対象1,063例中,ROP発症率は171例(16.1%),要治療例は32例(3.0%)であった。近年では出生体重1,000g以上,在胎週数29週以上のROP発症率と重症例は明らかに減少した。要治療例は減少傾向にあった。
ROPのより低体重化と要治療例の減少は未熟児管理の質的向上に関連していると推察された。
We reviewed 1849 babies who were admitted to our neonatal intensive care unit during 10 years and 2 months ending March 1992. There were 1063 babies with birthweight of 2500 g or less. Retinopathy of prematurity (ROP) was detected in 171 cases, 16.1%, of which 32, 3.0%, needed treat-ment. Infants with birthweight of more than 1000 g and gestational period of 29 weeks or more had significantly lower risks of ROP, particularly its severe types. There was a decreasing tendency for ROP needing treatment during the 10-year period. This feature seemed to be due to improved manage-ment, decrease in birthweight of infants with ROP needing treatment, and to lesser number of severe cases needing eye treatment.
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