Screening Retinopathy of Prematurity in Extremely Low Birth Weight Infants in China and the Need for Earlier...

Area of Science:

• Ophthalmology
• Neonatology
• Public Health

Background:

• Retinopathy of prematurity (ROP) is a significant cause of visual impairment in premature infants.
• Extremely low birth weight (ELBW) infants are at a higher risk of developing ROP.
• Current screening strategies may not be optimal for the ELBW population in China.

Purpose of the Study:

• To evaluate the incidence and severity of ROP in ELBW infants in China.
• To determine the optimal timing for ROP screening in this population.
• To advocate for a revised screening protocol for ELBW infants in China.

Main Methods:

• Retrospective longitudinal study of 77 ELBW infants (birth weight < 1 kg).
• Infants categorized into groups based on ROP severity (no ROP, mild ROP, severe ROP).
• Analysis of demographic and clinical data including gestational age, birth weight, and postmenstrual age.

Main Results:

• 56 out of 77 infants developed ROP; 38 developed severe ROP (Type 1 prethreshold or threshold).
• Significant differences in mean birth weight and gestational age were observed between ROP and non-ROP groups.
• Earlier onset of ROP was associated with increased severity (mean postmenstrual age 34 weeks for severe ROP vs. 37 weeks for mild ROP).

Conclusions:

• ELBW infants in China exhibit a high incidence of ROP, necessitating optimized neonatal care.
• Earlier ROP onset correlates with greater severity in ELBW infants.
• Recommend earlier initial screening for ELBW infants, especially those with birth weight < 800g or gestational age < 25 weeks.