International journal of obstetric anesthesia
-
Int J Obstet Anesth · Aug 2022
Multicenter StudyQuantitative blood loss after vaginal delivery: a retrospective analysis of 104 079 measurements at 41 institutions.
Peripartum quantitative blood loss (QBL) measurement is recommended over visual estimation. However, QBL measurement after vaginal delivery has been inadequately evaluated. The primary aim of this study was to determine the characteristics of QBL measurements from a large, multicenter cohort of patients having vaginal deliveries. We also determined the incidence of postpartum hemorrhage (PPH) and the relationship between gravimetric QBL from weighed sponges vs. volumetric QBL from liquid drape or suction cannister contents. ⋯ Results from this large set of QBL measurements and the PPH incidence provide normative "real-world" clinical care values that can be expected as hospitals transition from estimated blood loss to QBL to assess the blood loss at vaginal delivery.