Placenta previa is a condition where the placenta covers part or all of the cervical os. It can cause significant bleeding during the third trimester. Treatment depends on gestational age and severity of bleeding, and may involve expectant management, cesarean delivery, or in rare cases vaginal delivery. Complications include maternal hemorrhage and fetal issues like prematurity. Proper diagnosis and management are needed to prevent adverse outcomes.

1. Third Trimester Bleeding Placenta Previa Presenter:Dr.T.Kiak: Xianya 2 nd Hospital of Central South University, China

4. 1. Zlatnik MG, Cheng YW, Norton ME, Thiet MP, Caughey AB. Placenta previa and the risk of preterm delivery. J Matern Fetal Neonatal Med . Oct 2007;20(10):719-23 2. http://emedicine.medscape.com/article/262063-overview 6.6 Endometrosis 5 Thrombophletitis Aged > 40years=2% 5.5 Septicemia Aged 30-39years=1% 10 Blood Transfusion Aged 20-29years= 0.33% 33 Need for Hysterectomy Aged 12- 19years= 1% 10 Antepartum Hemorrhage Age Relative Risks Morbidities

6. Figure 1. Types of Placenta Previa ( http:// www.google.com /images )

16. Figure 3.Abdominal ultrasound

20. medication Acts directly on beta2-receptors to relax uterine contractions. Terbutaline (Brethine) tocolytics to promote the time for expectant management of symptomatic placenta previa Loading dose: 6 g IV over 20 min; then 2-4 g/h continuous infusion; adjust to lessen contractions; not to exceed 4 g/h Tocolytics Magnesium sulfate Steroids may be administered after consultation with a gynecologist, if vaginal bleeding is mild and intermittent, if the patient is not in labor, and if gestation is less than 37 weeks. Corticosteroids Betamethasone (Celestone) Side Effect Dosage Drug

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