The association between the introduction of quantitative assessment of postpartum blood loss and institutional changes in clinical practice: an observational study

Automated Quantification of Blood Loss versus Visual Estimation in 274 Vaginal Deliveries

“…Our study did not look at the impact of QBL implementation on patient care. However, a recent study by Katz et al 17 did demonstrate that the use of secondary uterotonics increased and transfusions were given sooner (although there was no increase in the incidence of transfusion) when blood loss was accurately measured. Further studies of clinical outcomes related to implementation of QBL are needed.…”

Quantification of Blood Loss: AWHONN Practice Brief Number 13

“…Quantification of blood loss promotes increased team awareness of patient emergencies, which provides more time for mobilization of additional resources (CMQCC, 2015;Katz et al, 2019) Quantification of blood loss contributes to earlier use of uterotonics when indicated and a reduction of blood transfusions, which lead to improved patient outcomes (Katz, et al, 2019)…”

Quantification of Blood Loss Improves Detection of Postpartum Hemorrhage and Accuracy of Postpartum Hemorrhage Rates: A Retrospective Cohort Study

“…These findings are consistent with prior studies. Katz et al reported a 13% hemorrhage rate using QBL among cesarean deliveries with the 90th %tile approaching 1,400 mL [ 8 ].…”

“…Finally, national organizations recommend QBL based on maternal mortality reviews. While a recent study published in 2019 showed increased use of uterotonics and earlier time to blood transfusion with implementation of QBL, there has not been any studies to date showing an improvement in mortality or volume of blood transfused with the use of quantitative blood loss [ 8 ]. It is unlikely, even in large studies such as ours, that the full clinical benefit of QBL can be accurately captured, particularly as it pertains to maternal mortality.…”