Fat emulsion tolerance in preterm infants of different gestational ages in the early stage after birth
TANG Hui1, YANG Chuan-Zhong1, LI Huan1, WEN Wei2, HUANG Fang-Fang2, HUANG Zhi-Feng1, SHI Yu-Ping1, YU Yan-Liang1, CHEN Li-Lian1, YUAN Rui-Qin1, ZHU Xiao-Yu1
Department of Neonatology, Shenzhen Maternity and Child Health Care Hospital Affiliated to Southern Medical University, Shenzhen, Guangdong 518028, China
Abstract Objective To investigate the fat emulsion tolerance in preterm infants of different gestational ages in the early stage after birth. Methods A total of 98 preterm infants were enrolled and divided into extremely preterm infant group (n=17), early preterm infant group (n=48), and moderate-to-late preterm infant group (n=33). According to the dose of fat emulsion, they were further divided into low-and high-dose subgroups. The umbilical cord blood and dried blood filter papers within 3 days after birth were collected. Tandem mass spectrometry was used to measure the content of short-, medium-, and long-chain acylcarnitines. Results The extremely preterm infant and early preterm infant groups had a significantly lower content of long-chain acylcarnitines in the umbilical cord blood and dried blood filter papers within 3 days after birth than the moderate-to-late preterm infant group (P < 0.05), and the content was positively correlated with gestational age (P < 0.01). On the second day after birth, the low-dose fat emulsion subgroup had a significantly higher content of short-, medium-, and long-chain acylcarnitines than the high-dose fat emulsion subgroup among the extremely preterm infants (P < 0.05). In the early preterm infant and moderate-to-late preterm infant groups, there were no significant differences in the content of short-, medium-, and long-chain acylcarnitines between the low-and high-dose fat emulsion subgroups within 3 days after birth. Conclusions Compared with moderate-to-late preterm infants, extremely preterm infants and early preterm infants have a lower capacity to metabolize long-chain fatty acids within 3 days after birth. Early preterm infants and moderate-to-late preterm infants may tolerate high-dose fat emulsion in the early stage after birth, but extremely preterm infants may have an insufficient capacity to metabolize high-dose fat emulsion.
TANG Hui,YANG Chuan-Zhong,LI Huan et al. Fat emulsion tolerance in preterm infants of different gestational ages in the early stage after birth[J]. CJCP, 2017, 19(6): 632-637.
TANG Hui,YANG Chuan-Zhong,LI Huan et al. Fat emulsion tolerance in preterm infants of different gestational ages in the early stage after birth[J]. CJCP, 2017, 19(6): 632-637.
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