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Intrapartum Effect of Vancomycin on Rectovaginal GBS Colonization

2016-06-27 20:53:21 | BioPortfolio

Summary

The aim of this project is to identify the duration of vancomycin administration at which group B streptococcus (GBS) colonization is eradicated from the vaginal and recto-vaginal mucosa. This will aid in labor management and delivery planning to ensure that the mother receives adequate GBS prophylaxis while also minimizing the duration of exposure to vancomycin. In addition, this could prevent unnecessary prolonged hospitalization or septic workup of neonates whose mothers received vancomycin intrapartum.

This study aims to identify the time after administration of IV vancomycin at which GBS colonies are 100% eradicated.

Description

Prophylaxis of group B streptococcus has been a major component of prenatal care in preventing early onset of neonatal sepsis. While penicillin remains the gold standard medication for prophylaxis, this medication is not an option in women who have high risk allergic reactions to this class of medications. Furthermore, with rising rates of antibiotic resistance to erythromycin and clindamycin, more women are requiring vancomycin for GBS prophylaxis. While the CDC and ACOG recommend vancomycin as an alternative to penicillin for GBS prophylaxis, little research has been conducted investigating the transplacental passage of vancomycin.

Because of the gap in knowledge regarding intrapartum effects of IV vancomycin on GBS colonization, neonates of women who received vancomycin are considered as inadequately treated for GBS prophylaxis, and subsequently undergo additional observation, prolonged hospitalization, and possible septic workup in the immediate postpartum period. Because of this gap in knowledge, this research study investigates how quickly vaginal and recto-vaginal GBS colonization is eradicated to aid in timing of delivery in patients with GBS colonization who require vancomycin intrapartum.

In addition, the studies that investigated the duration of time of IV penicillin and IV clindamycin necessary for eradication of GBS colonization only investigated vaginal colonization, not recto-vaginal colonization. Their rationale was based on the assumption that most cases of neonatal GBS sepsis are caused by vaginal colonization. Given that the standard of care for GBS screening includes screening for colonization of both vaginal and rectal mucosa, investigators also plan to compare rates of eradication of GBS in vaginal colonies compared to recto-vaginal colonies.

Study Design

Observational Model: Case Control, Time Perspective: Prospective

Conditions

Group B Streptococcal Infection

Intervention

Vaginal and rectovaginal swab cultures

Location

Good Samaritan Hospital
Cincinnati
Ohio
United States
45220

Status

Not yet recruiting

Source

TriHealth Inc.

Results (where available)

View Results

Links

Published on BioPortfolio: 2016-06-27T20:53:21-0400

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Medical and Biotech [MESH] Definitions

An ulcerative pyoderma usually caused by group A beta-hemolytic streptococcal infection at the site of minor trauma. (Dorland, 27th ed)

An abnormal anatomical passage that connects the VAGINA to other organs, such as the bladder (VESICOVAGINAL FISTULA) or the rectum (RECTOVAGINAL FISTULA).

Vaccines or candidate vaccines used to prevent STREPTOCOCCAL INFECTIONS.

The uptake of substances from the VAGINA via the vaginal epithelium/mucosa.

A technique for maintaining or growing CELLS in vitro. Cultures of dispersed cells derived directly from fresh TISSUES are called primary cell cultures. Cultures may also derive from established CELL LINE usually stored frozen.

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