Guideline adherence for intrapartum group B streptococci prophylaxis in penicillin-allergic patients

Area of Science:

• Obstetrics and Gynecology
• Infectious Disease Prevention
• Clinical Microbiology

Background:

• Penicillin allergy is common in obstetric patients, necessitating alternative strategies for preventing perinatal group B streptococci (GBS) infections.
• The 2002 Centers for Disease Control and Prevention (CDC) guidelines provide a framework for GBS prevention in these patients.
• Suboptimal adherence to these guidelines can lead to increased risks for both mother and neonate.

Purpose of the Study:

• To evaluate the adherence to the 2002 CDC guidelines for GBS prevention among penicillin-allergic obstetric patients.
• To assess the appropriateness of antibiotic selection and the utilization of antimicrobial sensitivity testing in this population.

Main Methods:

• Retrospective cohort study of penicillin-allergic, GBS-positive obstetric patients delivering in 2010.
• Review of electronic medical records for allergy details, cephalosporin tolerance, delivery characteristics, and antibiotic administration.
• Analysis of antimicrobial sensitivity testing and antibiotic choice against 2002 CDC guidelines.

Main Results:

• Intrapartum antibiotic prophylaxis was given to 97.8% of patients, but only 62.2% received appropriate prophylaxis per CDC guidelines.
• Clindamycin was frequently used (26.4% without susceptibility confirmation), and sensitivity testing was performed in only 65.5% of indicated cases.
• Significant gaps were identified in both performing necessary sensitivity testing and selecting guideline-concordant antibiotics.

Conclusions:

• Compliance with CDC guidelines for GBS prevention in penicillin-allergic women is suboptimal.
• Current practices demonstrate deficiencies in antimicrobial sensitivity testing and appropriate antibiotic selection.
• Implementation of targeted interventions is crucial to improve adherence and patient safety.