Placenta Previa
Conditions
Keywords
Placenta previa, Cervical length, Antepartum haemorrhage
Brief summary
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.
Detailed description
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.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
1. Age: 20-45 years old 2. Single Pregnancy 3. Fetal gestational age 28 to \< 36 weeks 4. Normal amniotic fluid index (AFI) 5. Diagnosis of placenta previa by pelvic ultrasound that was confirmed when the lower placental edge overlies the internal cervical os on transvaginal ultrasound (TVS).
Exclusion criteria
1. Threatened preterm labor and maternal use of vaginal progesterone. 2. Preterm premature rupture of membranes; 3. Polyhydramnios; 4. Presence of cercelage and history of cervical cone biopsy which both affect cervical length. 5. Diagnosis of multiple fetal anomalies; 6. Women with other risk factors for intra-partum hemorrhage
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Cervical length measured in mm in relation to antepartum haemorrhage | 4 months | To find out the relationship between cervical length measured by transvaginal ultrasound and occurrence of antepartum hemorrhage in cases of placenta previa. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Need for blood transfusion | 4 months | Yes or no and no.of packed units |
| Need for caesarean hysterectomy | 4 months | Yes or no |
| Type of cesarean delivery | 4 months | Elective or emergency cesarean delivery |
| Need for neonatal ICU | 4 months | Yes or no |