Investigation on factors related to pyelic separation in early newborns

To explore the relationship of pyelic separation with gestational age, body weight and sex in early newborns. A total of 320 neonates were examined by renal ultrasound 2-7 days after birth. The neonates included 180 boys and 140 girls, with a mean gestational age of 36±3 weeks (28-42 weeks) and a me...

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Published inZhongguo dang dai er ke za zhi Vol. 14; no. 10; p. 742
Main Authors Zhang, Qian, Li, Yan, He, Xiao, Xu, Shu-Ling, Guo, Hong-Xiang, Cheng, Xin-Ru
Format Journal Article
LanguageChinese
Published China 01.10.2012
Subjects
Birth Weight
Female
Gestational Age
Humans
Infant, Newborn
Kidney Pelvis - pathology
Male
Ureter - pathology
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Summary:To explore the relationship of pyelic separation with gestational age, body weight and sex in early newborns. A total of 320 neonates were examined by renal ultrasound 2-7 days after birth. The neonates included 180 boys and 140 girls, with a mean gestational age of 36±3 weeks (28-42 weeks) and a mean birth weight of 2430±1000 g (900-4870 g). Correlation analysis was performed between renal pelvis anteroposterior diameter (APD) and gestational age/body weight. The newborns were grouped based on gestational age, body weight and sex and the incidence of pyelic separation was compared among the groups. Pyelic separation was found in 100 of the 320 newborns. The incidence of pyelic separation in boys (37.8%, 70 cases) was significantly higher than in girls (22.2%, 30 cases) (P<0.05). The incidence rates of pyelic separation on the left side, right side and both sides were 59%, 13% and 29% respectively in boys, and 53%, 7% and 40% respectively in girls. There was no significant difference in the location of renal
ISSN:1008-8830