NCT01019902已完成不适用
Impact of Maternal Iron Status on Neonatal Iron Status and Auditory Brainstem Response in the Newborn
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 144
- 试验地点
- 1
- 主要终点
- Auditory Brainstem Responses (ABR) in Infant
研究概览
简要总结
This study aims to determine how maternal Fe status influences placental and neonatal Fe status in pregnant adolescents and to assess the impact of the Fe endowment of birth on functional outcomes as assessed by auditory brainstem responses within 48 h of delivery in neonates born to these adolescents.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 1 Day 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adolescents (ages 11-18 y) and their newborns will be eligible to participate if the adolescent is carrying a singleton pregnancy, does not have any preexisting medical complications (such as HIV-infection, eating disorders, hemoglobinopathies, malabsorption diseases, steroid use, substance abuse history, or taking medications known to influence iron homeostasis).
排除标准
- •Individuals with pregnancy induced hypertension or elevated diastolic blood pressure (>110) will not be eligible to participate in the study. In addition, adolescents who have been previously treated for lead exposure, or those that have been identified as having elevated blood lead concentrations during childhood, will be excluded from the study.
- •Data from infants that experience perinatal asphyxia, pathologic neonatal hyperbilirubinemia, respiratory disease, antibiotic therapy (aminoglycosides), CNS infection, sepsis, congenital or middle or external ear lesions, craniofacial anomalies, chromosomal disorders, TORCH (toxoplasmosis, other infections, rubella, cytomegalovirus infection and herpes simplex infection) or those that were clinically unstable with the first 48 h post-delivery will be excluded from ABR studies. Infants born to mothers with positive drug abuse screens at delivery will also be excluded from further study (these screens are automatically run among this age group). Infants that are identified with hearing deficits at birth using the OAE screening will be excluded from the ABR measures.
结局指标
主要结局
Auditory Brainstem Responses (ABR) in Infant
时间窗: within 24-48 h of birth
次要结局
- Neonatal Fe and micronutrient status(Delivery)
- Maternal Fe and micronutrient status (folate, B12, Fe, copper and zinc, hemoglobin, hematocrit,transferrin receptor, hepcidin, erythropoietin, ferritin, erythrocyte zinc protoporphyrin/heme ratios and c-reactive protein)(Delivery)
- Placental Fe/copper/zinc content and expression of key iron transporters.(Delivery)
研究者
研究点 (1)
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