Is the third trimester repeat ultrasound scan for placental localisation needed if the placenta is low lying but clear of the os at the mid-trimester morphology scan?

Introduction It is unclear whether women with a low‐lying placenta (not overlapping the internal cervical os) at the mid‐trimester scan need follow‐up. The aim of the study was to determine the rate of placenta praevia, vasa praevia and cord prolapse in the third trimester in this cohort of women. M...

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Published in:Australian & New Zealand journal of obstetrics & gynaecology 2014-10, Vol.54 (5), p.428-432
Main Authors: Kapoor, Shveta, Thomas, Joseph T., Petersen, Scott G., Gardener, Glenn J.
Format: Article
Language:English
Subjects:
Aged
Cervix Uteri - diagnostic imaging
Female
Humans
low-lying placenta
Multivariate Analysis
Placenta - anatomy & histology
Placenta - diagnostic imaging
placenta praevia
Placenta Previa - diagnostic imaging
placental localisation
Pregnancy
Pregnancy Complications
Pregnancy Trimester, Second
Pregnancy Trimester, Third
Retrospective Studies
Risk Factors
ultrasonography
Ultrasonography, Prenatal - methods
vasa praevia
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Summary:Introduction It is unclear whether women with a low‐lying placenta (not overlapping the internal cervical os) at the mid‐trimester scan need follow‐up. The aim of the study was to determine the rate of placenta praevia, vasa praevia and cord prolapse in the third trimester in this cohort of women. Methods A retrospective cohort study of women with a documented low‐lying placenta (
ISSN:0004-8666
1479-828X
DOI:10.1111/ajo.12244