摘要目的 探讨影响足月小样儿神经行为发育的围生期相关危险因素.方法 收集2008年4月至2010年4月于烟台毓璜顶医院产科分娩的111例足月小样儿的围生期相关资料,采用新生儿20项行为神经测定法(neonatal behavioral neurological assessment,NBNA)于生后3～7d对其进行评估,采用单因素及多因素Logistic回归分析考察影响足月小样儿神经行为发育的围生期危险因素.结果 足月小样儿行为能力、被动肌张力、主动肌张力及NBNA总分(分别为10.72±1.41,7.13±0.96,7.32±0.74,37.16±1.32)低于正常新生儿(分别为11.27±1.04,7.89±0.72,7.62±0.64,39.12±0.76),差异有统计学意义(P＜0.05).单因素Logistic回归分析提示影响足月小样儿神经行为的因素有分娩方式、胎盘异常、脐带异常、母亲围生期感染、妊娠高血压综合征、双胎妊娠、新生儿期高胆红素血症共7个因素.多因素Logistic回归分析提示母亲围生期感染(OR =2.175,95％CI1.981 ～2.408,P＜0.05)、双胎妊娠(OR=1.936,95％CI 1.517 ～2.368,P＜0.05)、高胆红素血症(OR=1.518,95％ CI1.072～2.149,P＜0.05)是影响足月小样儿NBNA评分的危险因素.结论 足月小样儿神经行为发育较正常新生儿差,母亲围生期感染、双胎妊娠、高胆红素血症是影响足月小样儿神经行为的危险因素.

abstractsObjective To explore perinatal risk factors associated with the neurobehavioral development of small for gestational age (SGA) full-term neonates.Methods This prospective cross-sectional study included 111 full-term newborn infants from Apr 2008 to Apr 2010 born in Yan-tai Yuhuangding Hospital.Detailed clinical data in perinatal period of all subjects were recorded.Infants aged 3 ～ 7 days were assessed with neonatal behavioral neurological assessment (NBNA) for neurobehavioral development.Logistic regression analysis was used to explore risk factors associated with the score of NBNA.Results Significant differences (P ＜ 0.05) were found between full-term SGA (10.72 ± 1.41,7.13 ± 0.96,7.32 ± 0.74,37.16 ±1.32) and normal neonates (11.27 ± 1.04,7.89 ± 0.72,7.62 ± 0.64,39.12 ± 0.76) in terms of capacity,active and passive muscle tension and NBNA score.Full-term SGA neonates had lower score than control.Univariate logistic regression showed that delivery,placenta abnormalities,umbilical cord abnormalities,infection in perinatal period,gestational hypertension,twin pregnancy,hyperbilirubinemia affected neurobehavioral development of full-term SGA infants.Multivariate logistic regression showed that mothers' infection in perinatal period (OR =2.175,95 ％ CI 1.981 ～ 2.408,P ＜ 0.05),twin pregnancy (OR =1.936,95％ CI 1.517 ～2.368,P ＜ 0.05) and hyperbilirubinemia (OR =1.518,95％ CI 1.072-2.149,P ＜ 0.05) were risk factors for neurobehavioral delay of full-term SGA infants.Conclusion Full-term SGA neonates showed poorer quality in neurobehavior.Risk factors associated with neurobehavior of full-term SGA infants included mothers' infection in perinatal period,twin pregnancy and hyperbilirubinemia.