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目的了解34周以下早产适于胎龄儿(AGA)和小于胎龄儿(SGA)生后蛋白质、能量摄入量以及体质量z评分的变化情况。方法回顾收集2012年1月至2014年12月入院的314例早产儿,比较268例AGA和46例SGA早产儿生后2周内蛋白质、能量摄入情况和体质量变化。结果 SGA组住院时间、肠外联合肠内营养时间、全肠内营养时间、达足量喂养时间均较AGA早产儿长,差异有统计学意义(P?<?0.05);SGA组生后第4、8、12天能量摄入量明显低于AGA组,SGA组生后第6、8天总蛋白质摄入量明显低于AGA组,差异均有统计学意义(P?<?0.05);SGA组日平均体质量增长量大于AGA组,差异有统计学意义(P?<?0.05);AGA组与SGA组生后2周内体质量z评分均逐渐远离中位水平,且SGA组2周时体质量z评分低于AGA组(P?<?0.05)。结论胎龄?<?34周的SGA早产儿恢复出生体质量后的生长速率快于AGA早产儿,存在一定的追赶生长;但SGA、AGA早产儿的生长均有待提高。
Objective To investigate the changes of protein, energy intake and body weight z score after birth in gestational age (AGA) and gestational age (SGA) preterm infants under 34 weeks old. Methods A total of 314 preterm infants admitted from January 2012 to December 2014 were retrospectively analyzed. The protein intake, energy intake and body weight of 268 preterm infants with AGA and 46 infants with SGA were compared. Results The length of hospital stay, parenteral enteral nutrition time, total enteral nutrition time, and adequate feeding time in SGA group were longer than those in AGA preterm infant group (P <0.05) At 4, 8 and 12 days, the energy intake was significantly lower than that of AGA group. The total protein intake of SGA group was significantly lower than that of AGA group on the 6th and 8th day after birth (P <0.05). The mean daily body weight gain in SGA group was greater than that in AGA group (P <0.05). The body mass scores in AGA group and SGA group were gradually away from the median level in 2 weeks after birth, and SGA group 2 Body weight at week z was lower than the AGA group (P? <? 0.05). CONCLUSION: The gestational age at 34 weeks of preterm infants with SGA recovered faster than that of premature infants with AGA and there was some catch-up growth. However, the growth of premature infants with SGA and AGA needs to be improved.