Department of Obstetrics and Gynecology, Máxima Medical Center, Veldhoven, The Netherlands.
Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
J Matern Fetal Neonatal Med. 2020 Oct;33(20):3418-3424. doi: 10.1080/14767058.2019.1573221. Epub 2019 Jan 31.
We aimed to investigate if the risk of fetal distress during term labor is related to the intrapartum maternal hemoglobin (Hb) level. Second, we investigated the relation between mode of delivery, reason for instrumental delivery and short-term neonatal outcome and maternal Hb. Third, we aimed to identify factors influencing intrapartum maternal Hb level. A retrospective cohort study was performed in a tertiary hospital in The Netherlands, including data from women who gave birth between 2009 and 2016. To determine whether the likelihood of fetal distress to occur was dependent on intrapartum Hb, multivariate regression models were run with intrapartum Hb as the main independent variable of interest. Hb was used as a continuous value. We repeated this procedure for the likelihood of instrumental vaginal delivery (IVD), cesarean section (CS), 5-min Apgar score < 7, and umbilical cord arterial pH ≤ 7.05 to occur. Also, we identified factors influencing intrapartum Hb level using linear regression analysis. Data of 9144 patients were analyzed. Intrapartum Hb did not contribute to the prediction of the likelihood of fetal distress, IVD for nonprogressive labor, CS for fetal condition, 5-min Apgar score < 7, and pHa ≤ 7.05. However, there was a unique statistically significant contribution of Hb to the prediction of the likelihood of IVD for any reason and IVD for fetal distress and CS for any reason and CS for nonprogressive labor. IVD for fetal distress was related to a higher intrapartum Hb level, whereas CS for nonprogressive labor was related to a lower intrapartum Hb level. Intrapartum Hb level was influenced by maternal age, ethnicity, parity, fetal sex, and birth weight. The risk of fetal distress and adverse neonatal outcome is not related to intrapartum Hb levels. However, our data suggest that mode of delivery is dependent on intrapartum Hb, as shown in a large tertiary population. We recommend further investigating this relation in a large prospective study.
我们旨在探究在足月分娩期间胎儿窘迫的风险是否与产时母体血红蛋白(Hb)水平有关。其次,我们研究了分娩方式、器械分娩的原因与短期新生儿结局和母体 Hb 之间的关系。第三,我们旨在确定影响产时母体 Hb 水平的因素。这是在荷兰一家三级医院进行的回顾性队列研究,纳入了 2009 年至 2016 年分娩的女性数据。为了确定胎儿窘迫发生的可能性是否依赖于产时 Hb,我们使用多元回归模型,以产时 Hb 作为主要感兴趣的自变量。Hb 作为连续值使用。我们对器械性阴道分娩(IVD)、剖宫产(CS)、5 分钟 Apgar 评分<7 和脐动脉 pH 值≤7.05 的发生概率重复了这一程序。此外,我们还使用线性回归分析确定了影响产时 Hb 水平的因素。分析了 9144 例患者的数据。产时 Hb 不能预测胎儿窘迫、非进展性产程的 IVD、胎儿情况的 CS、5 分钟 Apgar 评分<7 和 pHa≤7.05 的发生概率。然而,Hb 对任何原因的 IVD、胎儿窘迫的 IVD 和任何原因的 CS 以及非进展性产程的 CS 的发生概率的预测具有独特的统计学意义。胎儿窘迫的 IVD 与较高的产时 Hb 水平有关,而非进展性产程的 CS 与较低的产时 Hb 水平有关。产时 Hb 水平受产妇年龄、种族、产次、胎儿性别和出生体重的影响。胎儿窘迫和不良新生儿结局的风险与产时 Hb 水平无关。然而,我们的数据表明,分娩方式取决于产时 Hb,这在一个大型三级人群中得到了证实。我们建议在一项大型前瞻性研究中进一步研究这种关系。