META-ANALYSIS OF ABDOMINAL AORTA BALLOON OCCLUSION EFFICACY IN ATHLETES WITH IMPLANTABLE PERNICIOUS PLACENTA PREVIA

Abstract

Background: Pernicious placenta previa represents a significant obstetric challenge, particularly in athletes, where physical demands and vascular adaptations during pregnancy can complicate treatment outcomes. This meta-analysis aims to evaluate the efficacy of abdominal aorta balloon occlusion, a promising intervention aimed at managing this condition effectively. Methods: Comprehensive literature searches were conducted across PubMed, EMBASE, and the Cochrane Library to gather studies pertinent to the efficacy of abdominal aorta balloon occlusion in treating pernicious placenta previa. Eligible studies were selected based on predefined criteria, with data extraction and quality assessment subsequently performed. A random effects model was applied to synthesize the data, providing a weighted mean difference and confidence intervals for key outcomes such as operative time, intraoperative blood loss, postoperative hospital stays, and neonatal birth weight. Results: From 593 articles screened, 7 met the inclusion criteria. Meta-analysis findings indicate that intraoperative balloon occlusion of the abdominal aorta significantly reduces operative time by an average of 3.99 minutes (95% CI: -7.92, -0.06) and decreases intraoperative blood loss by 236.65 ml (95% CI: -318.16, -155.14). Additionally, there was a reduction in postoperative hospital stay and a slight decrease in neonatal birth weight. These results suggest that abdominal aorta balloon occlusion is beneficial in managing implantable pernicious placenta previa, offering substantial reductions in operative risks and resource utilization. Conclusions: Abdominal aorta balloon occlusion emerges as an effective strategy for reducing surgical risks associated with pernicious placenta previa, a finding that is particularly relevant in managing pregnant athletes who may face increased risks due to their enhanced physical condition and circulatory adaptations. The technique holds promise for improving maternal and neonatal outcomes in this high-risk population. However, the limited number of studies and variations in study quality necessitate further research to confirm these findings and assess long-term safety and efficacy, ensuring that this intervention can be safely recommended for widespread clinical use.