Group B Streptococcus Infection and Obstetric Hemorrhage Risk

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Infectious Diseases in Pregnancy

Background:

• Group B Streptococcus (GBS) is a common bacterium that can cause serious infections in newborns.
• The potential impact of GBS infection on maternal outcomes, specifically obstetric hemorrhage (OBH), requires further investigation.
• Understanding risk factors for OBH is crucial for improving maternal safety during childbirth.

Purpose of the Study:

• To determine the association between GBS infection and the risk of obstetric hemorrhage (OBH).
• To investigate the relationship between GBS status and OBH-related morbidities (OBH-M).
• To explore if intrapartum intraamniotic infection modifies the association between GBS and OBH.

Main Methods:

• Retrospective cohort study of deliveries with documented GBS status (2018-2019).
• GBS status determined by antepartum urine or rectovaginal cultures.
• Primary outcomes included quantitative blood loss (QBL), OBH, and a composite of OBH-M.

Main Results:

• No significant difference in QBL or OBH rates between GBS-positive and GBS-negative individuals.
• GBS status was not associated with OBH morbidity or related interventions.
• No significant differences observed in patients with intrapartum intraamniotic infection (III).

Conclusions:

• GBS infection at delivery is not linked to an increased risk of OBH or OBH-M.
• Further research is necessary to clarify the connection between peripartum infections and OBH risk.
• This study suggests GBS status alone may not be a significant predictor of postpartum hemorrhage.