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Low oxygen saturation appears to decrease the risk of severe retinopathy of prematurity (ROP) in preterm newborns when administered during the first few weeks after birth. High oxygen saturation seems to reduce the risk at later postmenstrual ages (PMAs). However, previous clinical studies are not conclusive individually.

To perform a systematic review and meta-analysis to report the association between severe ROP incidence of premature infants with high or low target oxygen saturation measured by pulse oximetry.

Studies were identified through PubMed and Embase literature searches through May 2009 by using the terms “retinopathy of prematurity and oxygen” or “retinopathy of prematurity and oxygen therapy.” We selected 10 publications addressing the association between severe ROP and target oxygen saturation …