The Rate and Predictors of Vaginal Bleeding Among Women With Placenta Previa

Placenta previa is usually diagnosed when the placenta implanted in the lower uterine segment, thus partially or totally overlying the internal os . It occurs with an incidence of 0.3-0.5%. It is associated mainly with prior caesarean delivery . The condition is frequently complicated by invasion of placental villi beyond the decidua basalis causing placenta accreta . Placenta previa is a major cause of massive haemorrhage during pregnancy and after delivery . The antepartum bleeding from placenta previa- can be life-threatening, thus, the prediction of this bleeding is of great importance . It is important to distinguish between women at high and low risk for antepartum haemorrhage with placenta previa especially at late pregnancy . However, the potential risk factors for antepartum haemorrhage in women with placenta previa have not been thoroughly examined.

Inclusion Criteria:Pregnant women ≥ 28 weeks.Diagnosed to have placenta previa by ultrasoundExclusion Criteria:Women with complicated pregnancies (e.g. preeclampsia, diabetes mellitus and cardiac, renal, antiphospholipid syndrome).Women with premature rupture of membrane.Women who will refuse to participate.