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Conservative management for adherent placenta after live birth in angular or interstitial pregnancies: A new entity
Erika Nakatsuka1, Kazuya Mimura1, Masayuki Endo1
1Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Taiwanese Journal of Obstetrics & Gynecology
|November 21, 2020
Summary
Angular pregnancies can result in live births but may present with adherent placentas. Conservative management and expectant observation are viable alternatives to hysterectomy for angular placenta attachment.
Area of Science:
- Reproductive Medicine
- Maternal-Fetal Medicine
- Obstetrics
Background:
- Angular and interstitial pregnancies are rare but can result in live births.
- These pregnancies are often complicated by adherent placentas, typically managed with hysterectomy or corneal resection.
Observation:
- This case series reports on four patients with angular or interstitial pregnancies and adherent placentas.
- Conservative management strategies included observation for spontaneous placental delivery, uterine artery embolization, and manual removal.
- One patient experienced a vaginal delivery with retained placenta, managed expectantly.
Findings:
- The study proposes a new entity: "angular placenta attachment."
- This condition can be diagnosed during cesarean delivery or after vaginal birth when placental separation fails.
- Conservative and expectant management were successfully employed in these cases.
Implications:
- Angular placenta attachment may be a distinct clinical entity.
- Expectant management is a potential conservative approach for adherent placentas in angular or interstitial pregnancies.
- This approach may help avoid hysterectomy in select cases.

