• Ji Eun Park, Ji Kwon Park, Hyen Chul Jo, In Ae Cho, and Jong Chul Baek.
• Department of Obstetrics and Gynecology, College of Medicine, Gyeongsang National University Changwon Hospital, Gyeongsang National University, Changwon, Republic of Korea.
• Int J Gynaecol Obstet. 2020 Mar 1; 148 (3): 325-330.

ObjectiveTo determine the effect of intrauterine balloon tamponade (IUBT) on the outcomes of postpartum hemorrhage (PPH) according to the balloon volume and to investigate the clinical factors associated with poor PPH outcomes.MethodsA retrospective cohort study was conducted in which patients with PPH underwent IUBT from January 2016 to August 2018. Patients with an IUBT volume greater than 350 mL (n=76) were compared to patients with an IUBT volume less than 350 mL (n=213). The clinical outcomes related to PPH included blood transfusion, estimated blood loss (EBL) after balloon placement, uterine artery embolization (UAE) after IUBT, and postpartum hospitalization. The results were analyzed by multivariate logistic regression models.ResultsNone of the clinical outcomes related to PPH and evaluated in our study were favorable in patients with an IUBT volume greater than 350 mL. Other factors associated with poor PPH outcomes after IUBT were placental site hemorrhage, shock index (SI) before IUBT, and antenatal hemoglobin.ConclusionIt is better to avoid unnecessary balloon inflation in IUBT if the bleeding is reduced, and more attention should be paid to the procedure when the balloon is large (≥350 mL) than when it is small (<350 mL).© 2019 International Federation of Gynecology and Obstetrics.

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