Application of Abdominal Aortic Balloon Occlusion Combined with Tourniquet in Pregnant Women with Severe Placenta Accreta Spectrum

Abstract

Objective

Abdominal aortic balloon occlusion (AABO) is a vascular intervention method that has been widely used in the treatment of severe placenta accreta spectrum (PAS). The aim of this study was to investigate the benefits, potential risks, and characteristics of AABO combined with tourniquet binding of the lower uterine segment (LUS) in treatment of pregnant women with PAS.

Methods

In this study, 64 pregnant women with PAS scores greater than 5 were enrolled as research subjects and divided into two groups. Group A (n=34) underwent normal operative procedures including tourniquet binding of the LUS. Group B (n=30) underwent AABO combined with tourniquet binding of the LUS. General clinical characteristics, ultrasonography PAS score, intraoperative blood loss (IBL), blood loss within 24 h after surgery (24-h BL), postoperative complications, and neonatal data of the two groups were retrospectively reviewed. The influencing factors of IBL for the two groups were analyzed.

Results

The amounts of IBL, 24-h BL, total input red blood cell, and the incidence of disseminated intravascular coagulation were significantly lower in group B than in group A (P<0.05), and this difference was even more significant in the subgroup of placenta percreta (PAS scores ≥10). Further multivariate linear analysis showed that the combined therapy of AABO and tourniquet could independently predict lower IBL than normal operative procedures did (P=0.001).

Conclusion

AABO combined with tourniquet binding of the LUS could improve the outcomes of pregnant women with severe PAS and reduce serious peripartum complications of AABO.

Keywords

severe placenta accreta spectrum / abdominal aortic balloon occlusion / tourniquet / lower uterine segment

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