Ultrasonic characteristics of the cervix in pregnant women before induced labor
DOI: 10.32364/2618-8430-2025-8-4-2
M.L. Tesakova1, D.D. Tesakova2,3
1Institute of Training and Retraining of Healthcare Professionals, Belarus State Medical University, Minsk, Republic of Belarus
2Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation
3N.N. Priorov National Medical Research Center for Trauma and Orthopedics, Moscow, Russian Federation
Aim: to evaluate ultrasonic parameters of the cervix in pregnant women with full-term pregnancy before labor induction.
Materials and Methods: an open-label prospective study was conducted in 112 pregnant women with full-term pregnancy delivered at Clinical Maternity Hospital of the Minsk Region. Ultrasound (US) examination of the cervix was performed on the eve of labor induction, as well as before a spontaneous onset of physiological labor. Transvaginal echography and Dopplerometry were performed to measure length of the cervix, and blood flow in the arteries of the cervical stroma at perfusion level III in accordance with M.N. Bulanov. These indicators included angle-dependent peak systolic velocity (PSV) and end diastolic velocity (EDV), as well as angle-independent resistance index (RI) and systolic diastolic ratio (SDR).
Results: ultrasonic (US) parameters of the cervix in pregnant women with full-term pregnancy, absence of spontaneous labor onset and a need for labor induction demonstrate low-active prenatal cervical rearrangement. This confirms its "immaturity": before labor induction, length of the cervix, PSV and EDV in the arteries of its stroma, RI and SDR are significantly higher than those in pregnant women undergoing physiological labor.
Conclusion: pregnant women with full-term pregnancy, absence of spontaneous labor onset and scheduled labor pre-induction demonstrate significantly higher US parameters of the cervix than pregnant women undergoing physiological labor.
Keywords: induced labor, full-term pregnancy, transvaginal echography, dopplerometry, length and parameters of blood flow in the cervical arteries.
For citation: Tesakova M.L., Tesakova D.D. Ultrasonic characteristics of the cervix in pregnant women before induced labor. Russian Journal of Woman and Child Health. 2025;8(4):–298 (in Russ.). DOI: 10.32364/2618-8430-2025-8-4-2
ABOUT THE AUTHORS:
Marina L. Tesakova — C. Sc. (Med.), Assistant Professor at the Department of Obstetrics and Gynecology, Institute of Training and Retraining of Healthcare Professionals, Belarus State Medical University, Minsk, Republic of Belarus; 3 Build. 3, P. Brovka str., Minsk, 220013, Republic of Belarus; ORCID iD 0009-0002-9025-6538
Dariya D. Tesakova — C. Sc. (Med.), Assistant Professor, Russian Medical Academy of Continuous Professional Education; 2/1, Barrikadnaya str., Moscow, 125993, Russian Federation; Doctor of the Clinical Department, N.N. Priorov National Medical Research Center for Trauma and Orthopedics; 10, Priorov str., Moscow, 127299, Russian Federation; ORCID iD 0000-0002-3603-8946
Contact information: Marina L. Tesakova, dr-morish@yandex.ru
Financial Disclosure: no authors have a financial or property interest in any material or method mentioned.
There is no conflict of interest.
Received 04.12.2025.
Revised 09.12.2025.
Accepted 10.12.2025.
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