Intermediate
Technical
IVT
uterine atony
Pronunciation: AY-tuh-nee
Loss of uterine muscle tone resulting in inadequate contraction, a serious complication following fetal surgery.
Full Definition
Uterine atony refers to the failure of uterine smooth muscle to contract adequately, most commonly occurring postpartum but also following fetal surgical procedures. In fetal surgery contexts, atony can develop due to prolonged anesthesia, uterine manipulation, or tocolytic medications used to prevent preterm labor. This complication may lead to significant maternal hemorrhage requiring immediate intervention with uterotonics or, in severe cases, surgical management. Editors must distinguish atony from other causes of postoperative bleeding.
In Context
- "Uterine atony was suspected when estimated blood loss exceeded 500 mL post-hysterotomy closure." — Operative report
- "Prophylactic oxytocin was administered to prevent uterine atony following the fetal procedure." — Postoperative care plan
Also known as
uterine inertia
Contrasted with
uterine hypertonicity
Don't confuse with
uterine rupture
placental abruption