PMID: 6987582Mar 1, 1980Paper

Group B beta-hemolytic streptococcus: randomized controlled treatment study at term

Obstetrics and Gynecology
G B MerensteinT Luzier

Abstract

A randomized controlled investigation was undertaken to evaluate the role of maternal oral antibiotic therapy in decreasing the incidence of maternal and neonatal colonization at term with group B beta-hemolytic streptococcus (GB-BHS). Data were collected to determine the optimum transfer media and the colonization rate in the study population. At delivery 1441 maternal-infant pairs were evaluated. One hundred sixty-eight women (11.6%) and 55 infants (3.8%) were colonized. Forty-four women colonized with GB-BHS at 38 weeks' gestation were randomly assigned to a treatment (500 mg potassium penicillin or erythromycin ethylsuccinate q.i.d.) or a control group to determine the value of antepartum oral antibiotic therapy in preventing infant colonization. There was a significant reduction in maternal (P = 0.008) and infant (P = 0.004) colonization rates in the treatment group. There were no observed complications of antibiotic therapy in mothers or infants. This study suggests that routine cultures for GB-BHS should be done at 38 weeks' gestation. Mothers colonized at this time may be considered candidates for prophylactic antibiotic treatment.

Related Concepts

Carrier of Disorder
Ilotycin
Gestational Age
Penicillin
Pregnancy Complications, Infectious
Randomization
Streptococcal Infections
Streptococcus agalactiae

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