فراواني رتينوپاتي نوزادان نارس در مركز مراقبت هاي ويژه نوزادان بيمارستان بوعلي ساري در سال 1380

Prevalence of retinopathy in premature neonates in neonatal intensive care unit of Boali sina hospital in 2001

Background and purpose: Retinopathy of premature neonates (ROP) is a lesion in the retina of under weight neonates at birth, which can lead to blindness. Aim of this study is to report the prevalence and severity of this complication in the intensive care unit of sari Boali sina hospital. Materials and methods: In this descriptive- cross sectional study which was followed by clinical examinations, laboratory findings and by referring to the filled questionnair, 68 neonates met the necessary criteria, were selected. Neonates under study were under eye examinations at the time of discharge (4 weeks) from hospital, 6 to 8 weeks after brih. Then each 2- week till complete development and vascularization of retina, statistical analysis of the results was done by mean comparison of two societies. Results : Prevalence of ROP was generally 11.7 % and severity of ROP at stage 3 or greater was 1.4 % . No case of ROP at gestational age of more than 34 weeks was observed. Most cases of ROP were observed in the neonates under 1500 grams weight at birth, but birth cases up to 2500 grams weight were observed too. There was significant statistical difference between duration of phototherapy, high level of Pco2, Severity of respiratory distress and ROP. Conclusion: Considering the difference in the rate of prevalence and severity of ROP as compare with the given reports from the western countries, it seems that national ROP prediction needs to be evaluated.