Comparative Efficacy of Abdominal Aortic ABO (AABO) vs Common Iliac Artery ABO (CIABO) in Cesarean Delivery for Central Placenta Previa with Placenta Accreta: A Retrospective Study.

Objective: To compare the safety and efficacy of abdominal aortic balloon occlusion (AABO) and common iliac artery balloon occlusion (CIABO) in cesarean deliveries for central placenta previa with placenta accreta, using a retrospective study design.

Methods: We retrospectively analyzed 65 patients with central placenta previa and placenta accreta who underwent cesarean delivery at our hospital between January 2020 and April 2024. Patients were divided into two groups: the observation group (n=35) received AABO, while the control group (n=30) received CIABO. Outcomes compared included intraoperative blood loss, maternal and neonatal outcomes, and other relevant factors. Data were analyzed using SPSS 26.0, with normally distributed quantitative data assessed by t-tests and categorical data by chi-square tests. A p-value <0.05 was considered significant.

Results: The AABO group had significantly reduced balloon placement time, radiation exposure, intraoperative blood loss (mean 800 ± 150 mL vs 1200 ± 180 mL in CIABO; p<0.05), and transfusion volume (mean 400 ± 100 mL vs 600 ± 120 mL in CIABO; p<0.05). The hysterectomy rate was lower in the AABO group (5.7% vs 16.7% in CIABO; p<0.05). No significant differences were observed in postpartum hemorrhage (14.3% vs 13.3%; p>0.05) or neonatal asphyxia (2.9% vs 3.3%; p>0.05). Postoperative coagulation function at 24 hours was better in the AABO group (p<0.05), with no significant difference in postoperative complications (p>0.05).

Conclusion: AABO in cesarean deliveries for central placenta previa with placenta accreta reduces intraoperative blood loss and hysterectomy rates without adverse fetal effects, making it a valuable clinical option.