background: metabolic bone diseases (mbd), including rickets and osteopenia, are important neonatal complications among preterm infants. this study aimed to determine the prevalence and risk factors of mbd in neonates with very low birth weight (vlbw). methods: this prospective study was conducted on vlbw infants from january 2012 to july 2013. inclusion criteria were birth weight of ≤1500 g an...

background bronchopulmonary dysplasia (bpd) is one of the most common serious squeal of preterm infants. it involves approximately one quarter of infants with birth weight less than 1500 grams and 30% of less than 1000 grams. vitamin a has been shown to reduce bpd rate. we compared efficacy of low and high doses of vitamin a for prevention of bpd in very low birth weight preterm infants. materi...