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. 2020 Nov 10;10(1):19401.
doi: 10.1038/s41598-020-76472-w.

Survival rate dependent variations in retinopathy of prematurity treatment rates in very low birth weight infants

Jae Hyun Park  1 , Jong Hee Hwang  2 , Yun Sil Chang  3 , Myung Hee Lee  4 , Won Soon Park  5
Affiliations

Survival rate dependent variations in retinopathy of prematurity treatment rates in very low birth weight infants

Jae Hyun Park et al. Sci Rep. .

Abstract

As increased oxidative stress causes increased mortality and morbidities like bronchopulmonary dysplasia (BPD) and retinopathy of prematurity (ROP) in very low birth weight infants (VLBWIs), the conundrum of improved survival but increased ROP observed with the high oxygen saturation target range of 91-95% is difficult to explain. To determine the survival rate-dependent variation in ROP treatment rate, 6292 surviving eligible VLBWIs registered in the Korean Neonatal Network were arbitrarily grouped according to the survival rate of infants at 23-24 weeks' gestation as group I (> 70%, n = 1626), group II (40-70%, n = 2984) and group III (< 40%, n = 1682). Despite significantly higher survival and lower BPD rates in group I than in groups II and III, the ROP treatment rate was higher in group I than in groups II and III. However, the adjusted odds ratios for ROP treatment were not significantly different between the study groups, and the ROP treatment rate in the infants at 23-24 weeks' gestation was 21-fold higher than the infants at ≥ 27 weeks' gestation. The controversial association between improved survival and reduced BPD reflecting quality improvement of neonatal intensive care but increased ROP treatment rate might be primarily attributed to the improved survival of the most immature infants.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Flowchart showing the study population from the Korean Neonatal Network Database.
See this image and copyright information in PMC

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