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No association of Chlamydia with abortion
A Feist1, T Sydler, J J Gebbers
1Institute of Veterinary Pathology, University of Zurich, Switzerland.
Journal of the Royal Society of Medicine
|September 3, 1999
Summary
This study found no evidence of chlamydia infection in placental tissues from spontaneous abortions. However, serological tests indicated past exposure to Chlamydia trachomatis and Chlamydia pneumoniae in some patients.
Area of Science:
- Reproductive medicine
- Infectious diseases
- Obstetrics
Background:
- Chlamydial infections are a potential cause of adverse pregnancy outcomes.
- Previous studies suggested a possible link between chlamydias and spontaneous abortion.
Purpose of the Study:
- To investigate the presence of chlamydial infection in placental tissues from spontaneous abortions.
- To determine the association between maternal anti-chlamydial antibodies and spontaneous abortion.
Main Methods:
- Immunohistochemistry was used to detect chlamydial lipopolysaccharide in placental tissues.
- Histopathological examination of placental sections was performed.
- Microimmunofluorescence assay was used to detect anti-chlamydial antibodies in maternal serum.
Main Results:
- No chlamydial antigen was detected in any of the placental sections.
- Serological evidence of past infection with Chlamydia trachomatis was found in 8 patients and Chlamydia pneumoniae in 15 patients.
- No cases showed typical intracytoplasmic inclusions of Chlamydia psittaci, despite some instances of perivillitis or intervillitis.
Conclusions:
- This study did not find direct evidence of chlamydial infection in the placenta as a cause of spontaneous abortion.
- The findings suggest that while chlamydial infections may not be directly implicated in these cases, further investigation is warranted.
- Continued efforts to detect Chlamydia in abortion-related materials are encouraged to fully understand its role in pregnancy complications.