ABSTRACT
Objective:To study the neurodevelopmental status of very/extremely low birth weight preterm infants with gestational age less than 32 weeks at the corrected age of 1 year.Methods:Preterm infants admitted to the Neonatology Department after birth at Guangzhou Women and Children′s Medical Center from January 2015 to December 2018 and followed up regularly to the high-risk infants clinic for at least 1 year after discharge were selected as the research subjects.According to the birth weight(BW), preterm infants were divided into very/extremely low birth weight group(BW<1 500 g), low birth weight group(1 500 g<BW<2 500 g)and normal birth weight group(2 500 g≤BW<4 000 g). The neurodevelopment of preterm infants with different BW at the corrected age of 1 year were compared and the influence of perinatal risk factors on neurodevelopment of very/extremely low birth weight preterm infants were analyzed.Results:A total of 270 preterm infants were included in the study, including 95 in the very/extremely low birth weight group, 124 in the low birth weight group, and 51 in the normal birth weight group.At the corrected age of 1 year, adaptability, gross motor, fine motor, language, individual sociability and development quotient(DQ) in the very/extremely low birth weight group were lower than those in the other two groups( P<0.05). The incidence of neurodevelopmental abnormality(DQ<85)in very/extremely low birth weight preterm infants was 42.1%(40/95) at the corrected age of 1 year.The incidence of intracranial hemorrhage in neurodevelopmental abnormality group(85.0%, 34/40) was higher than that in the control group(29.1%, 16/55)( P<0.05). Conclusion:Very/extremely low birth weight preterm infants are at high risk of neurodevelopmental abnormality at the age of 1 year, and intracranial hemorrhage may be a related potential risk factor.Perinatal follow-up care and early intervention should be emphasized to strengthen neurodevelopmental monitoring.
ABSTRACT
Objective:To investigate the difference of physical growth and neurodevelopmen between small for gestational age (SGA) preterm infants and appropriate for gestational age (AGA) preterm infants, and to promote follow-up management and early intervention in SGA preterm infants after discharge.Methods:Preterm infants, who were born at Guangzhou Women and Children′s Medical Center and received regular follow-up management after discharge in high-risk infants outpatient, were enrolled in this study from January 2015 to December 2018.According to gestational age and birth weight, the participants were divided into SGA group and AGA group.Height, weight, head circumference and Gesell outcomes of infants were observed at 6 months and 12 months of corrected age.Results:A total of 144 preterm infants were included in the study, including 63 cases in SGA group and 81 cases in AGA group. Height, weight and head circumference of the SGA group at 6 months and 12 months of corrected age were all lower than the AGA group ( P<0.05). In addition, adaptability, great movement, language, personal social interaction and development quotient in the SGA group were all lower than those in the AGA group at 6 months of corrected age ( P<0.05), while fine movement was not statistically significant ( P>0.05). At 12 months of corrected age, there were no statistically significant differences in adaptability, macro motor, fine motor, language, social interaction and development quotient between the two groups ( P>0.05). Conclusion:The physical growth of SGA preterm infants falls for behind that of AGA preterm infants.It is still unable for SGA preterm infants to achieve catch-up growth at 12 months of corrected age, their catch-up period may take longer, but the neurodevelopment can reach the same level of preterm AGA.The clinician should pay more attention to the follow-up management and early intervention after discharge.