Vessels ligation have been used as a part of conservative management in treatment of placenta accrete spectrum to decrease blood loss as uterine artery ligation and internal iliac artery ligation. Surgical ligation of the anterior divisions of the internal iliac artery is practiced by many tertiary care centers during management of women with PAS disorders. However there is no recommendation toward the routine use of internal iliac artery ligation before bladder dissection during conservative management of (placenta accrete spectrum). The retroperitoneal space will be dissected and bifurcation of common iliac vessels will be identified, After identifying the ureter, the internal iliac artery will be dissected on both sides away from surrounding tissues and from adjacent iliac vein. The anterior branch of each internal iliac artery will be then prophylactically ligated using suture ligation approximately 2-3 cm distal to common iliac artery bifurcation in order to avoid ligation of the posterior division. Principal investigators will conduct a study to evaluate the efficacy of internal iliac artery ligation before bladder dissection during conservative management using cervico isthmic compression suture in cases of Placenta accrete spectrum.
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Estimation of blood loss
Timeframe: During surgery from the start of uterine incision till closure of abdominal wall