Placental inflammatory changes and their association with the vaginal microbiota before delivery
- Authors: Dadayeva D.G.1, Sosnina A.K.1, Tral T.G.1,2, Tolibova G.K.1,3, Budilovskaya O.V.1,2, Krysanova A.A.1,2, Savicheva A.M.1,2, Kogan I.Y.1,4
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Affiliations:
- The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott
- Saint Petersburg State Pediatric Medical University
- North-Western State Medical University named after I.I. Mechnikov
- Saint Petersburg State University
- Issue: Vol 70, No 1 (2021)
- Pages: 59-68
- Section: Original study articles
- URL: https://journal-vniispk.ru/jowd/article/view/52962
- DOI: https://doi.org/10.17816/JOWD52962
- ID: 52962
Cite item
Abstract
HYPOTHESIS/AIMS OF STUDY: Infection of the amniotic cavity and placenta is one of the leading causes of adverse pregnancy outcomes. In the majority of cases, intra-amniotic infection is associated with the normal microbiota of the lower urogenital tract. The aim of the study was to explore the relationships between the placental inflammatory changes, vaginal microbiota and labor course.
STUDY DESIGN, MATERIALS AND METHODS: We examined 124 women at 37-41 weeks of gestation. The vaginal discharge at admission was taken for microbiological evaluation, with the delivered placenta sent for histological examination.
RESULTS: In 17.7% of cases, histological examination of the placenta revealed inflammatory changes. A statistically significant correlation was noted between the placental inflammatory changes and Staphylocossus spp. presence in the vaginal discharge at admission (р = 0.0004). The placental inflammatory changes were associated with the membrane rupture to delivery interval more than 6 hours (р = 0.01) and the labor duration more than 7 hours (р = 0.0004). Prelabor rupture of membranes did not significantly affect the placental inflammatory changes (p = 1.0).
CONCLUSION: Predisposing factors for the development of ascending bacterial infection of the placenta are an abnormal vaginal microbiota with the presence of opportunistic bacteria before delivery, a long membrane rupture to delivery interval, and a prolonged labor.
Full Text
##article.viewOnOriginalSite##About the authors
Dzhamilya G. Dadayeva
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott
Author for correspondence.
Email: djamilya2010@mail.ru
ORCID iD: 0000-0002-1190-0149
Post-Graduate Student
Russian Federation, Saint PetersburgAlexandra K. Sosnina
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott
Email: aleksandrasosnina@bk.ru
ORCID iD: 0000-0002-9353-9333
SPIN-code: 9103-3119
pathologist of the Pathological Department of the Department of Pathomorphology
Russian Federation, Saint PetersburgTatyana G. Tral
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott; Saint Petersburg State Pediatric Medical University
Email: ttg.tral@yandex.ru
ORCID iD: 0000-0001-8948-4811
SPIN-code: 1244-9631
Scopus Author ID: 37666260400
PhD, MD. Pathologist, Head of Pathologist Laboratory of the Department of Pathomorphology
Russian Federation, Saint PetersburgGulrukhsor Kh. Tolibova
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott; North-Western State Medical University named after I.I. Mechnikov
Email: gulyatolibova@yandex.ru
ORCID iD: 0000-0002-6216-6220
SPIN-code: 7544-4825
Scopus Author ID: 23111355700
ResearcherId: Y-6671-2018
MD, PhD, Leading Researcher, Head of immunohistochemistry laboratory
Russian Federation, Saint PetersburgOlga V. Budilovskaya
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott; Saint Petersburg State Pediatric Medical University
Email: o.budilovskaya@gmail.com
ORCID iD: 0000-0001-7673-6274
SPIN-code: 7603-6982
Researcher, The Laboratory of Microbiology
Russian Federation, Saint PetersburgAnna A. Krysanova
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott; Saint Petersburg State Pediatric Medical University
Email: krusanova.anna@mail.ru
ORCID iD: 0000-0003-4798-1881
SPIN-code: 2438-0230
Researcher, Laboratory of Microbiology; Assistant of the Department of Clinical Laboratory Diagnostics of the Faculty of Postgraduate and Additional Professional Education
Russian Federation, Saint PetersburgAlevtina M. Savicheva
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott; Saint Petersburg State Pediatric Medical University
Email: savitcheva@mail.ru
ORCID iD: 0000-0003-3870-5930
SPIN-code: 8007-2630
Scopus Author ID: 6602838765
Dr. med. Sci., Professor, Honored Scientist of the Russian Federation, Head of the Laboratory of Microbiology, Head of the Department of Clinical Laboratory Diagnostics of the Faculty of Postgraduate and Additional Professional Education
Russian Federation, Saint PetersburgIgor Yu. Kogan
The Research Institute of Obstetrics, Gynecology, and Reproductology named after D.O. Ott; Saint Petersburg State University
Email: ikogan@mail.ru
ORCID iD: 0000-0002-7351-6900
SPIN-code: 6572-6450
Scopus Author ID: 56895765600
MD, PhD, DSci (Medicine), Professor, Corresponding Member of RAS. The Department of Obstetrics, Gynecology, and Reproductive Sciences, Medical Faculty
Russian Federation, Saint PetersburgReferences
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