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Published on: September 21, 2015
[Efficacy of various methods for preoperative vaginal antisepsis]
H Enzelsberger1, W Eppel, G Dorninger
1Univ.-Frauenklinik Wien.
Abstract:
In a prospective clinical study we investigated 115 patients prior to vaginal surgical interventions to determine the antimicrobial efficacy of six different procedures for vaginal antisepsis. To sample the microorganisms we used a cotton swab moistened with a neutralising fluid. Immediately after the time of action of the antiseptic procedures (3 minutes), providone-iodine solution, applied undiluted or diluted 1:10, yielded the strongest median reduction of the vaginal flora (log RF 3.60 and 2.68, respectively). Of three detergents with antiseptic efficacy, octenidine 0.1% was the most efficient formula (log RF 2.32). After 30 minutes the log reduction factors (log RF) of almost all procedures (log RF 2.79-3.25) were in a fairly close range, excepting chlorohexidine 0.05% (log RF 2.07). Overall, the antiseptic detergents showed a marked residual effect, which was less pronounced, if at all, with providone-iodine solutions. A germ-reducing effect of povidone-iodine vaginal suppositories, applied 2 to 3 hrs prior to surgery, was not confirmed, while additional findings indicated that providone-iodine solution applied with the help of a vaginal douche yields a similarly strong germ reduction as the application by means of a ball swabs.
Insights
Povidone-iodine solution demonstrated the strongest immediate antimicrobial efficacy for vaginal antisepsis before surgery. Antiseptic detergents offered a more sustained effect, though povidone-iodine suppositories showed no significant germ reduction.
Area of Science:
- Microbiology
- Surgical Preparation
- Antiseptic Efficacy
Background:
- Vaginal surgical interventions require effective preoperative antisepsis to minimize infection risk.
- Evaluating the antimicrobial efficacy of various vaginal antisepsis procedures is crucial for patient safety.
Purpose of the Study:
- To compare the antimicrobial efficacy of six different vaginal antisepsis procedures.
- To assess the immediate and residual effects of antiseptics on vaginal flora.
Main Methods:
- Prospective clinical study involving 115 patients undergoing vaginal surgery.
- Microbial sampling using cotton swabs with neutralising fluid immediately after antiseptic application.
- Evaluation of log reduction factors (log RF) at 3 and 30 minutes post-application.
Main Results:
- Povidone-iodine solution (undiluted and 1:10 dilution) showed the highest immediate log reduction (3.60 and 2.68).
- Octenidine 0.1% was the most effective antiseptic detergent (log RF 2.32).
- Antiseptic detergents exhibited a marked residual effect, unlike povidone-iodine solutions; chlorohexidine 0.05% had lower efficacy at 30 minutes (log RF 2.07).
Conclusions:
- Povidone-iodine solution is highly effective for immediate vaginal antisepsis.
- Antiseptic detergents provide a more sustained antimicrobial effect compared to povidone-iodine solutions.
- Povidone-iodine vaginal suppositories did not confirm a germ-reducing effect prior to surgery.
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