Multiple studies have identified several risk factors for uterine atony such as polyhydramnios, fetal macrosomia, twin pregnancies, use of uterine inhibitors, history of uterine atony, multiparity, or prolonged labor. We were unable to find such risk factors in our study population. Anemia during the antepartum period has been a factor associated with increased maternal mortality secondary to hemorrhage, and in our study, we found no such association.
The patients who developed severe hemorrhage due to uterine atony required additional administration of uterotonics, and oxytocin was the most commonly used drug.