Management of Retained Placenta at 16 Weeks Gestation
Timing of Placental Expulsion
- The World Health Organization defines retained placenta as spontaneous placental delivery occurring more than 30 minutes after fetal expulsion 1
- For a 16-week gestation, there is no specific literature on the recommended time interval between fetal expulsion and placental delivery 2
- Recent observational data suggests an increased risk of postpartum hemorrhage >500 mL when spontaneous placental delivery occurs more than 30 minutes after fetal expulsion 3
Management Algorithm
- Administer 5-10 IU of oxytocin via slow IV or intramuscular infusion immediately after fetal delivery to reduce incidence of postpartum hemorrhage 2
- Allow for spontaneous placental expulsion without manual intervention 3
- Continue expectant management with close monitoring of bleeding 1, 2
- Do not perform manual removal of the placenta to reduce risk of postpartum hemorrhage unless severe bleeding occurs 2
- Consider transfer to a specialized facility if not already in one 4
For Significant Hemorrhage
- If blood loss approaches or reaches 1 liter, this constitutes severe postpartum hemorrhage and requires immediate intervention 5, 6
- Proceed to operating room for suction D&C when blood loss reaches 1 liter 5
- Administer 1g of tranexamic acid IV within 1-3 hours of bleeding onset to reduce maternal morbidity and mortality 3
- Implement massive transfusion protocol if needed 6
- Keep patient warm (>36°C) as clotting factors function poorly at lower temperatures 6
- Avoid acidosis 6
- Transfuse packed red blood cells, fresh frozen plasma, and platelets in a fixed ratio for acute hemorrhage 6
Special Considerations
- Laboratory testing (platelet count, prothrombin time, partial thromboplastin time, and fibrinogen levels) is critical for hemorrhage management 6
- Treat based on clinical presentation initially without waiting for laboratory results 6