Vaginal Bacteria and Early Pregnancy Loss in IVF
Author Information
Author(s): Linda O. Eckert, Donald E. Moore, Dorothy L. Patton, Kathy J. Agnew, David A. Eschenbach
Primary Institution: University of Washington
Hypothesis
The study investigates the impact of vaginal flora and vaginal inflammation on conception and early pregnancy loss following in-vitro fertilization (IVF).
Conclusion
IVF patients with bacterial vaginosis and lower levels of hydrogen peroxide-producing lactobacilli may experience lower conception rates and higher early pregnancy loss rates.
Supporting Evidence
- The overall live birth rate was 30% (27/91) and the early pregnancy loss rate was 34% (14/41).
- Conception rates were 30% in women with bacterial vaginosis, 39% with intermediate flora, and 52% with normal flora.
- Women with H2O2-producing lactobacilli had a live birth rate of 70%.
Takeaway
This study looks at how the bacteria in a woman's vagina can affect her chances of getting pregnant and having a baby after IVF.
Methodology
The study enrolled 91 women undergoing IVF, who had vaginal cultures and Gram stains performed at embryo transfer to assess the impact of vaginal flora on conception and early pregnancy loss.
Potential Biases
Potential bias may arise from the exclusion of women undergoing donor egg IVF and the limited demographic range of participants.
Limitations
The study is limited by its sample size and the fact that it only examines the first cycle of IVF for each participant.
Participant Demographics
Participants were women aged 21-45 years undergoing their first cycle of IVF.
Statistical Information
P-Value
p = 0.06 for trend
Statistical Significance
p<0.05
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