Uterine Atony
- PMID: 29630290
- Bookshelf ID: NBK493238
Uterine Atony
Excerpt
Uterine atony refers to the corpus uteri myometrial cells inadequate contraction in response to endogenous oxytocin that is released in the course of delivery. It leads to postpartum hemorrhage as delivery of the placenta leaves disrupted spiral arteries which are uniquely void of musculature and dependent on contractions to mechanically squeeze them into a hemostatic state. Uterine atony is a principal cause of postpartum hemorrhage, an obstetric emergency. Globally, this is one of the top 5 causes of maternal mortality.
Copyright © 2025, StatPearls Publishing LLC.
Conflict of interest statement
Sections
References
-
- American College of Obstetricians and Gynecologists. ACOG Practice Bulletin: Clinical Management Guidelines for Obstetrician-Gynecologists Number 76, October 2006: postpartum hemorrhage. Obstet Gynecol. 2006 Oct;108(4):1039-47. - PubMed
-
- Blitz MJ, Yukhayev A, Pachtman SL, Reisner J, Moses D, Sison CP, Greenberg M, Rochelson B. Twin pregnancy and risk of postpartum hemorrhage. J Matern Fetal Neonatal Med. 2020 Nov;33(22):3740-3745. - PubMed
Publication types
LinkOut - more resources
Full Text Sources