Placenta previa at 34 weeks with active bleeding — expectant management vs emergency caesarean?

1 Answer

In this case, she has major placenta previa at 34 weeks with one episode of moderate bleeding, but currently she is stable and the CTG is reassuring. So at this point, this is not an emergency yet, but it is definitely a high-risk situation. If I see this patient in practice, I would admit her and observe closely. As long as bleeding has stopped, vitals are stable, and the fetus is fine, we can continue expectant management and try to prolong pregnancy. But the threshold for intervention is low. If she develops another significant bleed, continuous bleeding, any drop in blood pressure, rise in pulse, or if the CTG becomes non-reassuring, then I would proceed with immediate cesarean. Otherwise, if she remains stable, I would plan delivery around 36 weeks, or earlier if she has recurrent bleeding. Now, the important part here is her previous cesarean. With previa and a previous scar, we must strongly suspect Placenta Accreta Spectrum. This changes the management approach. I would not treat this as a routine previa case. I would plan delivery in a tertiary care center, ensure adequate blood products are available, and involve anesthesia and NICU teams in advance. If accreta is confirmed or strongly suspected, I would go prepared for cesarean hysterectomy, because attempting to remove the placenta can lead to severe hemorrhage. Regarding MRI, ultrasound is usually sufficient in most cases. I would consider MRI only if ultrasound findings are unclear, if the placenta is posterior, or if there is a need to assess the depth of invasion. MRI is mainly helpful for surgical planning, especially to evaluate involvement of surrounding structures like the bladder. So overall, at present she can be managed expectantly with close monitoring. Any worsening in bleeding or maternal or fetal status would warrant immediate delivery. Because of the previous scar, this case should always be managed with a high suspicion for accreta and proper preparation.