INTRODUCTION:: We implemented a multidisciplinary team approach including prophylactic internal iliac artery (IIA) catheterization to manage patients at high risk of obstetric hemorrhage due to morbidly adherent placentation (MAP). METHODS:: We performed an IRB approved, retrospective cohort study of patients (2000-2018) who underwent cesarean hysterectomy for suspected MAP. We compared outcomes before and after the implementation of a multidisciplinary treatment team approach with data from the electronic medical record. RESULTS:: There were 12 cases of MAP prior to implementation of the multidisciplinary approach and 24 cases after. IIA catheters were placed preoperatively in 54% of the patients in the multidisciplinary team cohort. There were no differences between groups in mean maternal age (35.2 vs 31.7, P=.14), gravidity (4.4 vs 3.8, P=.51), parity (2.6 vs 1.9, P=.12), or number of prior cesareans (2.5 vs 1.8, P=.09). There were no differences in postoperative length of stay (9.7 vs 4.8 days, P=.09), 30-day readmission (8.3% vs 12.5%, P=.071), 5 minute Apgar <7 (P=.16) or birth weight (P=.88). We observed a significant difference in estimated blood loss (4,558 mL vs 2,215 mL, P=.02) and mean number of units of packed red blood cells transfused (12.75 vs 4.5, P=.03). CONCLUSION:: The multidisciplinary approach, specifically the addition of IIA catheterization, results in reduced total blood loss and units of blood transfused. This intervention may be high yield at other centers.