Bleeding is the most significant cause of maternal death worldwide with more than half of those occurring within the first day of delivery. About 10.5% (some estimate as high at 12-17%) of live births world-wide, or about 14 million births, are complicated by postpartum hemorrhage; a woman dies every 4 minutes from postpartum hemorrhage. Uterine atony and placenta accreta are the two leading causes of postpartum hysterectomies with up to 64% of Cesarean hysterectomies done for abnormally adherent placentation