ISSN 0300-9092 (Print)
ISSN 2412-5679 (Online)

Uterine hemodynamics in the first trimester after treatment of chronic endometritis: comparison between ongoing pregnancy and early pregnancy loss

Ozerskaya I.A., Porkhovaty S.Ya., Kazaryan G.G., Ozhogina E.V.

1) Peoples' Friendship University of Russia named after Patrice Lumumba, Moscow, Russia; 2) LLC “Asklepion”, Moscow, Russia; 3) LLC “Medscan”, Moscow, Russia; 4) Center for Reproductive Medicine and Genetics “Nova Clinic”, Moscow, Russia

Objective: To identify the characteristics of uterine hemodynamics in patients after treatment of chronic endometritis at 5–7 and 8–10 weeks of gestation, and to assess association between the changes in uterine hemodynamics and first trimester pregnancy status (ongoing pregnancy/pregnancy loss).
Materials and methods: The retrospective analysis included 112 pregnant women with a history of diagnosed chronic endometritis (CE). Of them 62 women previously underwent comprehensive treatment at 5–7 weeks of gestation (46 had ongoing pregnancy, 18 experienced pregnancy loss), and 48 women underwent treatment  at 8–10 weeks of gestation (42 had ongoing pregnancy, 6 experienced pregnancy loss). Uterine artery Doppler ultrasound evaluation of Vmax, Vmin, Vmean, PI, RI was performed, and the arterial perfusion index (API) was calculated at the given gestational age based on pregnancy status.
Results: After treatment of CE, the most informative parameters were API and Vmean at 5–7 weeks of gestation, whereas at 8–10 weeks the differences in these parameters were predominantly associated with uterine vascular resistance indices (PI, RI) and Vmean.
Conclusion: After treatment of CE, the parameters of uterine hemodynamics in early pregnancy varied in relation to gestational age and pregnancy status in the first trimester. Comprehensive assessment of uterine artery blood flow parameters can improve the clinical benefits of uterine artery Doppler ultrasound in management of early pregnancy in women with a history of chronic endometritis.

Authors' contributions: Ozerskaya I.A. – the study concept and design, article editing; Pohkhovaty S.Ya. – material collection and processing; Kazaryan G.G., Ozhogina E.V. – article writing; Ozhogina E.V. – statistical data processing.
Conflicts of interest: The authors confirm that they have no conflicts of interest to declare.
Funding: The study was conducted without any sponsorship.
Ethical Approval: The study was approved by the local Ethics Committee of the Faculty of Continuous Medical Education, Patrice Lumumba Peoples’ Friendship University of Russia.
Patient Consent for Publication: The patients have signed informed consent for participation in the study and publication of their data.
Authors' Data Sharing Statement: The data supporting the findings of this study are available on request from the corresponding author after approval from the principal investigator.
For citation: Ozerskaya I.A., Porkhovaty S.Ya., Kazaryan G.G., Ozhogina E.V. Uterine hemodynamics in the first trimester after treatment of chronic endometritis: comparison between ongoing pregnancy and early pregnancy loss.
Akusherstvo i Ginekologiya/Obstetrics and Gynecology. 2026; (2): 78-85 (in Russian)
https://dx.doi.org/10.18565/aig.2026.01

Keywords

ultrasound diagnostics
pregnancy
chronic endometritis
uterine blood flow
Doppler ultrasound

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Received 12.01.2026

Accepted 29.01.2026

About the Authors

Irina A. Ozerskaya, Dr. Med. Sci., Professor, Professor at the Department of Ultrasound Diagnostics of the Faculty of Continuing Medical Education of the Medical Institute, Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University), 117198, Russia, Moscow, Miklukho-Maklay str., 6, +7(926)606-09-05,
ozerskaya_usd@mail.ru, https://orcid.org/0000-0001-8929-6001
Sergey Ya. Porkhovaty, PhD, Ultrasound diagnostics doctor, LLC “Asklepion”, 125222, Russia, Moscow, Dubravnaya str., 41 bldg. 2, https://orcid.org/0009-0002-7263-1568
Gayane G. Kazaryan, PhD, Head of the Ultrasound Department, LLC “Medskan”, 119421, Russia, Moscow, Obrucheva str., 21A, https://orcid.org/0000-0002-1198-8187
Ekaterina V. Ozhogina, PhD, Leading Reproductive Specialist, Nova Clinic Center for Reproduction and Genetics, 119415, Russia, Moscow, Lobachevsky str., 20,
https://orcid.org/0009-0007-5205-2901
Corresponding author: Irina A. Ozerskaya, ozerskaya_usd@mail.ru

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