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.
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.