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Obstet Gynecol. 2012 Mar;119(3):626-9. doi: 10.1097/AOG.0b013e31824532f6.

Intrapartum evidence of early-onset group B streptococcus.

Author information

1
Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas 75390-9032, USA. carmen.tudela@utsouthwestern.edu

Abstract

OBJECTIVE:

To estimate if neonates with early-onset group B streptococcus (GBS) sepsis have clinical evidence of fetal infection during labor or at delivery.

METHODS:

Retrospective cohort study of all neonates diagnosed with GBS sepsis by culture and clinical findings within the first 72 hours of life from January 1, 2000, through December 31, 2008, at Parkland Health and Hospital System. Medical records were reviewed and maternal, neonatal, and delivery data were ascertained. These neonates then were compared with all neonates delivered during the same time period.

RESULTS:

During the study period, 143,384 live-born neonates were delivered at our institution; 94 were diagnosed with early-onset GBS sepsis. The majority of these neonates (n=93) were diagnosed with early-onset GBS within the first hour of life. Neonates with early-onset GBS sepsis had a significant increase in preterm delivery, cesarean delivery (total and for fetal distress), 1- and 5-minute Apgar scores of 3 or lower, umbilical cord pH less than 7.0, and a base deficit of 12 mmol/L or higher. In addition, nulliparity differed between those with early-onset GBS and those without (74% compared with 33%, P<.001) as did chorioamnionitis rates (62% compared with 8%, P<.001).

CONCLUSION:

We believe that these findings are compelling evidence that fetuses with early-onset GBS may have signs of sepsis peripartum. We hypothesize that these data support the concept that early-onset GBS represents a spectrum of infection that often precedes birth.

PMID:
22353962
DOI:
10.1097/AOG.0b013e31824532f6
[Indexed for MEDLINE]

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