Prophylactic bilateral internal iliac balloon occlusion to control hemorrhage in placenta accreta spectrum: a boon for obstetricians

Background Placenta accreta spectrum (PAS) is abnormal placental adhesion beyond superficial myometrium, which may lead to severe life-threatening hemorrhage requiring massive blood transfusions in the peripartum period. Prophylactic balloon catheterization of bilateral internal iliac arteries with or without additional embolization with Cesarean hysterectomy in patients with PAS prevent excessive intraoperative hemorrhage and may also obviate the need for hysterectomy. Purpose To study the efficacy of intervention radiological procedures in controlling intraoperative hemorrhage in patients with PAS. Material and Methods This ethically approved prospective study was conducted between November 2017 and October 2019 and written informed consent was obtained from all patients. Consecutive patients diagnosed with PAS during the antepartum period were evaluated. A total of 18 patients with PAS underwent prophylactic balloon catheterization of the bilateral internal iliac arteries followed by delivery of the infant. Interventional and intraoperative data of these patients were collected and compared with retrospectively collected data of patients (control group) who underwent hysterectomy without prophylactic balloon occlusion over the past four years (January 2016-November 2019). Results Significantly lower intraoperative blood loss (2.8 L vs. 4.7 L; P = 0.048) and pure red blood cell (PRBC) requirement (P = 0.026) between patients who had hysterectomy with and without interventional radiological management was observed. Significantly higher blood loss (P = 0.006) and fluid requirement (P = 0.007) was observed with a higher degree of placental invasion. Only 1 (6%) major procedure-related complication was observed. Conclusion Interventional radiological procedures are effective in significantly reducing intraoperative blood loss and blood product requirement in patients with PAS.