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Published on: January 17, 2019
Midgestational pre-labor spontaneous uterine rupture: a systematic review
Nataly Sharon1, Ron Maymon1, Marina Pekar-Zlotin1
1Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center), Zerifin, Israel (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel).
Objective:
Second and early third-trimester uterine rupture in a non-laboring woman is a very rare and life-threatening condition for both mothers and newborns. However, there are scant epidemiologic data on this event.
Study Design:
Literature searches using Medical Subject Headings (MeSH) and non-MeSH terms were conducted in the PubMed/MEDLINE, Google Scholar and Embase databases from 1988 to 2020. Abstracts were reviewed and selected if they reported on uterine rupture in the second and third trimester. Uterine rupture was characterized as a full-thickness uterine wall defect. A total of 80 singleton intrauterine pregnancies between gestational ages of 14 and 34 weeks' gestation were included.
Results:
The mean gestational age at diagnosis of uterine rupture was 22.4 ± 5.4 weeks. The associated events in obstetric history for uterine rupture were: ≥1 previous cesarean section (45%; 36/80 of the cases), previous uterine rupture (10%; 8/80), previous classical uterine incision (7.5%; 6/80), myomectomy (25%; 20/80) and congenital uterine malformations (16.3%; 13/80 of the cases). Uterine ruptures were associated with a short IP interval in 13.7% (11/80) and 43.7% (35/80) were associated with abnormal placentation: placenta accreta spectrum (PAS) disorders (n = 26), placenta previa (n = 2) and placenta previa and PAS (n = 7). The rate of related prenatal ultrasound findings was 67.5%. Cesarean hysterectomy was performed in 27% of the cases. Maternal death was reported in 2.5% (2/80). For the neonates delivered ≥24 weeks' gestation (n = 27) peripartum fetal death was reported in 33.3% (9/27).
Conclusions:
Midgestational pre-labor spontaneous uterine rupture is not an anecdotal event and may follow the worldwide increasing rate of cesarean sections. Health care providers should be familiar with the associated factors, presenting symptoms and complications of this obstetric emergency.
