Preventing Early Onset GBS Neonatal Sepsis - Are Second Line Intrapartum Antibiotics Equivalent to No Antibiotics at...

Area of Science:

• Obstetrics and Gynecology
• Infectious Disease Prevention
• Neonatal Health

Background:

• Group B strep (GBS) poses a risk to newborns, potentially causing early onset sepsis (EOS).
• Penicillin is the preferred antibiotic prophylaxis for GBS, but allergies complicate treatment.
• Alternative strategies for GBS prophylaxis in penicillin-allergic pregnant individuals require evaluation.

Purpose of the Study:

• To evaluate the efficacy of prenatal allergy testing in guiding intrapartum antibiotic prophylaxis for GBS.
• To compare first-line (penicillin-based) versus second-line or no antibiotics in penicillin-allergic pregnant women.
• To determine the impact of different prophylaxis strategies on rates of early onset sepsis (EOS).

Main Methods:

• Retrospective analysis of pregnant women with a history of penicillin allergy.
• Stratification based on prenatal allergy testing results (positive or negative).
• Comparison of GBS prophylaxis regimens and subsequent EOS rates.

Main Results:

• Intrapartum antibiotic prophylaxis using first-line agents (after negative allergy testing) was superior to second-line or no antibiotics.
• Second-line or no antibiotic prophylaxis showed similar, higher rates of EOS compared to first-line.
• Prenatal allergy testing facilitates appropriate antibiotic selection, improving outcomes.

Conclusions:

• Prenatal allergy testing is strongly recommended for pregnant women with a penicillin allergy history.
• This testing enables effective first-line intrapartum antibiotic prophylaxis for GBS, significantly reducing EOS risk.
• Optimizing GBS prophylaxis through allergy testing improves neonatal safety.