Correlation Between Placental Thickness in the Second and Third Trimester and Fetal Weight
研究概览
详细说明
The investigator will make certain that the appropriate informed consent process is in place to ensure that potential research subjects, or their authorized representatives, are fully informed about the nature and objectives of the study, the potential risk and benefits of study participation, and their right as research subjects.
All laboratory specimens, evaluation forms, reports, video recordings, and other records that leave the site will not include unique personal data to maintain subject confidentiality.
All patients provided an informed written consent after they were fully instructed about the investigation.The study was approved by ethical committee of Ain Shams University.
All recruited women were observed at the 1st trimester screening at antenatal clinic and assessed for baseline demographic and obstetric data including age, parity, body mass index (BMI) and past medical events. Smoking, alcohol and drug use were also determined.
At second and third trimester (15-20 and 30-34 weeks of gestation respectively), the maternal weight, weight gain, BMI, BMI gain and data of ultrasound examination were recorded. At the time of delivery after assessment of maternal weight as mentioned above, the birth weight (in grams), fetal sex, and mode of delivery were taken.
All pregnant women underwent ultrasound evaluation of placental thickness at the time of second trimester (15-20 weeks of gestation) as well as third trimester (30-34 weeks of gestation).
All sonographic examinations were performed trans-abdominal using a Medison X4 ultrasound machine Trans abdominal4.0 megahertz (MHz) probe at The Special Care Center for Fetus Unit at Ain Shams University Maternity Hospital.
The placental thickness was measured by placing the ultrasound transducer perpendicularly to the plane of the placenta, in the area of the cord insertion, near the mid-placental portion as described by Hoddick et al
Each evaluation was performed by one of two experienced sonographers of our hospital with minimum inter- and intra-observer variability.
After delivery, the placenta was weighed in grams as previously described by Azpurua et al.
Fetal weight (primary objective) and neonatal status and morbidity including baby Apgar scores, fetal distress or fetal death and admission to the neonatal intensive care unit were also determined. All the examinations and data recording were performed by two senior resident physicians.(secondary objective)
研究类型
注册 (实际的)
联系人和位置
学习地点
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Elabbasia
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Cairo、Elabbasia、埃及
- Ain Shams Faculty of Medicine
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- patient Aged between 18 and 45 years.
- singleton viable pregnancy.
- non scared uterus.
Exclusion Criteria:
- systemic illness (DM,Hypertension, renal disease, liver disease, sickle cell disease)
- known congenital fetal anomalies.
- multiple pregnancy.
- intra uterine fetal death.
- anatomical defect of pregnant uterus
- abnormally located placenta or placental anomalies
- morbid obesity
- missing records
- unwilling to incorporate in the study.
学习计划
研究是如何设计的?
设计细节
- 观测模型:队列
- 时间观点:预期
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Fetal Weight (Fetal Weight at Birth)
大体时间:9 months
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Fetal weight (fetal weight at birth) (in grams)
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9 months
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Placental Thickness in Second Trimester
大体时间:15-20 weeks of gestation
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placental thickness measured in millimeter
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15-20 weeks of gestation
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Placental Thickness at 3rd Trimester
大体时间:30-34 weeks of pregnancy
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30-34 weeks of pregnancy
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合作者和调查者
调查人员
- 研究主任:AHMED MEKLED, Professor、ain shams University
- 研究主任:HAYTHAM SABAA, Lecturer、ain shams University
出版物和有用的链接
一般刊物
- Azpurua H, Funai EF, Coraluzzi LM, Doherty LF, Sasson IE, Kliman M, Kliman HJ. Determination of placental weight using two-dimensional sonography and volumetric mathematic modeling. Am J Perinatol. 2010 Feb;27(2):151-5. doi: 10.1055/s-0029-1234034. Epub 2009 Aug 3.
- Hoddick WK, Mahony BS, Callen PW, Filly RA. Placental thickness. J Ultrasound Med. 1985 Sep;4(9):479-82. doi: 10.7863/jum.1985.4.9.479.
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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