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Home > Emergency Medical Minute > Podcast 740: Placenta Previa
Podcast: Emergency Medical Minute
Episode:

Podcast 740: Placenta Previa
Category: Science & Medicine
Duration: 00:03:47
Publish Date: 2021-12-21 11:00:00
Description:

Contributor: Peter Bakes, MD

Educational Pearls:

  • High concern causes of third trimester vaginal bleeding include placenta previa, placental abruption, or vasa previa
  • In placenta previa, the placenta implants over the cervix and this condition
    • Often noted during routine prenatal care on transabdominal ultrasound
  • Patients present with painful vaginal bleeding, usually in the absence of trauma
  • Avoid pelvic exam, transvaginal ultrasound, or digital vaginal exam in placenta previa
  • Risk factors for placenta previa include multiple gestations, previous medical abortions, advanced maternal age, and previous placenta previa
  • Management usually includes admission to the hospital
    • >37 weeks: admission for c-section
    • 34-37 weeks: judgment call based on maternal/fetal stability
    • <34 weeks: steroids for fetal lung maturation and delay delivery 

References

Anderson-Bagga FM, Sze A. Placenta Previa. [Updated 2021 Jun 26]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK539818/

Young JS, White LM. Vaginal Bleeding in Late Pregnancy. Emerg Med Clin North Am. 2019;37(2):251-264. doi:10.1016/j.emc.2019.01.006

Summarized by John Spartz, MS4 | Edited by Erik Verzemnieks, MD

*Image from BruceBlaus via Wikimedia Commons licensed under Creative Commons license

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