Value of Third Trimester Cervical Length Measurement in Predicting Risk and Severity if Antepartum Haemorrhage in Cases of Placenta Previa
试验速览
- 阶段
- 不适用
- 入组人数
- 80
- 主要终点
- Cervical length measured in mm in relation to antepartum haemorrhage
研究概览
简要总结
This study establishes the relationship between cervical length and whether it can be used to predict haemorrhage and preterm delivery in cases of placenta previa.
详细描述
Some studies have reported an association between ultrasonographic decreased cervical length and the likelihood of complications as antepartum or post-partum haemorrhage requiring an emergency caesarean section (CS) .
The safety of trans-vaginal scanning is not in doubt, and the technique now has widespread acceptance. As a consequence, the clinical presentation of placenta previa has changed and most low lying placentas are diagnosed during the second trimester anomaly scan.
The objective of this study was to establish if there is a relation between transvaginal ultrasonographic measurement of cervical length in cases of placenta previa and whether it can be used as a predictor for antepartum haemorrhage or not.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 25 Years 至 40 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Age: 20-45 years old
- •Single Pregnancy
- •Fetal gestational age 28 to < 36 weeks
- •Normal amniotic fluid index (AFI)
- •Diagnosis of placenta previa by pelvic ultrasound that was confirmed when the lower placental edge overlies the internal cervical os on transvaginal ultrasound (TVS).
排除标准
- •Threatened preterm labor and maternal use of vaginal progesterone.
- •Preterm premature rupture of membranes;
- •Polyhydramnios;
- •Presence of cercelage and history of cervical cone biopsy which both affect cervical length.
- •Diagnosis of multiple fetal anomalies;
- •Women with other risk factors for intra-partum hemorrhage
结局指标
主要结局
Cervical length measured in mm in relation to antepartum haemorrhage
时间窗: 4 months
To find out the relationship between cervical length measured by transvaginal ultrasound and occurrence of antepartum hemorrhage in cases of placenta previa.
次要结局
- Type of cesarean delivery(4 months)
- Need for blood transfusion(4 months)
- Need for caesarean hysterectomy(4 months)
- Need for neonatal ICU(4 months)
研究者
Marwa Mohamed Mahmoud Eid
Ass.prof obs&Gyn.
Cairo University