Shifts in Vaginal Bacterial Community Composition Are Associated With Vaginal Mesh Exposure

Area of Science:

• Gynecologic Surgery
• Microbiome Research
• Medical Device Complications

Background:

• Vaginal mesh is used for pelvic organ prolapse repair.
• Vaginal mesh exposure is a known complication.
• The impact of mesh exposure on the vaginal microbiome is not well understood.

Purpose of the Study:

• To investigate the relationship between vaginal mesh exposure and vaginal bacterial community composition.
• To compare the vaginal microbiota in women with and without mesh exposure.

Main Methods:

• Collected vaginal swab samples from women with mesh exposure and controls.
• Utilized 16S rRNA gene sequencing to analyze bacterial communities.
• Employed PERMANOVA and Wilcoxon rank sum tests to assess microbial differences.

Main Results:

• Vaginal bacterial communities were characterized by either Lactobacillus dominance or low Lactobacillus with high anaerobe diversity.
• In most cases, bacterial communities were similar across vaginal sites, but decreased Lactobacillus was observed at exposure sites.
• While common mesh-colonizing bacteria were present, they were generally not abundant.

Conclusions:

• Women experiencing vaginal mesh exposure are more likely to have a diverse, non-Lactobacillus-dominant vaginal community.
• This suggests a potential link between altered vaginal microbiota and mesh complications.