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Mid-trimester sonographic placenta previa thickness and persistence at delivery
Minhazur R Sarker1, Henri M Rosenberg2, Leslie Warren2
1Department of Obstetrics, Gynecology and Reproductive Science, University of California San Diego, San Diego, CA, USA; Department of Obstetrics, Gynecology and Reproductive Science, Mount Sinai Health System & Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Obstetrics, Gynecology, and Reproductive Health, New York Health and Hospitals, Elmhurst Hospital Center, Elmhurst, NY, USA.
Thick placentas diagnosed in the second trimester are linked to persistent placenta previa at delivery and an increased likelihood of cesarean delivery. This finding aids in predicting pregnancy outcomes.
Area of Science:
- Maternal-Fetal Medicine
- Obstetrics
- Diagnostic Imaging
Background:
- Placental thickness is an indicator of adverse pregnancy outcomes.
- Mid-trimester placenta previa diagnosis requires understanding of potential complications.
Purpose of the Study:
- To investigate the association between mid-trimester placental thickness and the persistence of placenta previa at delivery.
Main Methods:
- Retrospective cohort study of singleton gestations with placenta previa diagnosed between 18-24 weeks.
- Placental thickness measured via transabdominal imaging.
- Cohorts defined as thin, average, or thick placentas based on standard deviations.
Main Results:
- Thick placentas were associated with a significantly higher rate of persistent placenta previa (aOR 6.85).
- Thick placentas also correlated with an increased risk of cesarean delivery (aOR 2.76).
- Patients with thick placentas were older and had higher rates of prior cesarean delivery.
Conclusions:
- Mid-trimester placental thickness is a predictor of placenta previa persistence.
- Thick placenta may help identify patients requiring cesarean delivery.
- Placental thickness can aid in risk stratification and care coordination for placenta previa.
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