A rare case of massive postpartum hemorrhage due to inner myometrial laceration following vaginal delivery

  Postpartum hemorrhage is associated with highest rate of mortality and has many known etiologies. Inner myometrial laceration is one of the rare etiologies that lack of diagnosis can lead to maternal mortality. This report introduced a rare case of postpartum hemorrhage due to inner myometrial laceration. The patients were a 35-year-old woman (gravida 3 and live 2) referred to the hospital due to term pregnancy and premature rupture of membrane for pregnancy termination. Normal vaginal delivery was done following labor induction. After delivery of a 3700 gr neonate, severe postpartum hemorrhage occurred which was unresponsive to medical treatment and uterotonic drugs; she was transferred to operating room and hysterectomy was performed. Then, she was transferred to ICU. On the first day of Intensive Care Unit admission, the patient was complicated by ventricular tachycardia and bradycardia, and finally cardiopulmonary arrest. CPR was done, but it was unsuccessful, and the patient was expired. Pathological assessment revealed inner myometrial laceration at the posterior uterine wall. Considering inner myometrial laceration as one of the important and controllable causes of postpartum hemorrhage can lead to the diagnosis of this complication