Undiagnosed abnormal postpartum blood loss: Incidence and risk factors.

ABSTRACT:

Background

We aimed to evaluate the incidence of undiagnosed abnormal postpartum blood loss (UPPBL) after vaginal delivery, identify the risk factors and compare them to those of postpartum haemorrhage (PPH).

Method

The study population included women who participated in a randomized controlled trial of women with singleton low-risk pregnancy who delivered vaginally after 35 weeks' gestation (n = 3917). Clinical PPH was defined as postpartum blood loss ≥ 500 mL measured by using a collector bag and UPPBL was defined by a peripartum change in haemoglobin ≥ 2 g/dL in the absence of clinical PPH. Risk factors were assessed by multivariate multinomial logistic regression.

Results

The incidence of UPPBL and PPH was 11.2% and 11.0% of vaginal deliveries, respectively. The m

SUBMITTER: Girault A 

PROVIDER: S-EPMC5761868 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature