USE OF A DOME-SHAPED SILICONE OBSTETRIC PESSARY IN PREGNANT WOMEN WITH PLACENTA PREVIA AS A METHOD FOR PREVENTION OF EARLY PRETERM DELIVERY


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Abstract

Objective. To evaluate the efficiency of using an obstetric pessary in combination of progesterone in a group of pregnant women at high risk for miscarriage and placenta previa. Subjects and methods. A total of 217 pregnant women at high risk for preterm delivery with placenta previa were examined. A study group (Group A) consisted of 81 pregnant women, in whom a comprehensive approach with a Dr. Arabin obstetric pessary was used in combination with micronized progesterone; a comparison group (Group B) included 136 patients who received micronized progesterone only. During the investigation, each group was divided into subgroups according to the type of placenta previa: Groups IA1 (n = 13), IB1 (n = 50) with complete placenta previa, Groups IA2 (n = 25), IB2 (n = 37) with incomplete placenta previa and Groups A3 (n = 43), IB3 (n = 49) with low placentation. Resu1ts. The highest rate of complications as bleeding was detected in Group B: in 48.6 (18/37) of the patients with incomplete placenta previa during pregnancy and in 80.0% (40/50) of the parturient women with complete placenta previa during labor. Bleeding during pregnancy was three times less frequently seen in the group of patients who used a Dr. Arabin in combination with progesterone than in that receiving progesterone only: 11.1% (9/81) versus 33.1% (45/136), respectively (χ2 = 7.416; p = 0.006). Early premature deliveries occurring at less than 34 weeks’ gestation was 2.7 times less frequently observed in Group A than in Group B (χ2 = 4.678; p = 0.031). Placental migration was diagnosed 1.8 times significantly more often in Group A, mainly in the low-placentation subgroup (χ2 = 4.369; p = 0.037) due to the lower resistance index in the arcuate arteries and to the change in the anterior uterocervical angle. Conclusion. The combined approach to managing patients with placenta previa at high risk for miscarriage reduces the frequency of early preterm delivery at 34 weeks’ gestation by 2.7 times and the risk of bleeding during labor by 3 times. Placental migration occurs in 48.1% of the pregnant women with placenta previa when a Dr. Arabin obstetric pessary is used.

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About the authors

Sergej Vladimirovich BARINOV

Email: barinov_omsk@mail.ru
doctor of medical sciences, professor, head of the department of obstetrics and gynecology № 2, Omsk State Medical University. 644043, Russia, Omsk, Lenina str. 12

Inna Vasil’evna SHAMINA

Email: innadocsever@rambler.ru
candidate of medical sciences, docent, assistant professor at the department of obstetrics and gynecology № 2, Omsk State Medical University. 644043, Russia, Omsk, Lenina str. 12

Oksana Vyacheslavovna LAZAREVA

Email: lazow@mail.ru
candidate of medical science, assistant of the department of obstetrics and gynecology № 2, Omsk State Medical University. 644043, Russia, Omsk, Lenina str. 12

Yuliya Igorevna TIRSKAYA

Email: yulia.tirskaya@yandex.ru
doctor of medical sciences, docent, professor at the department of obstetrics and gynecology № 2, Omsk State Medical University. 644043, Russia, Omsk, Lenina str. 12

Galina Borisovna DIKKE

Email: galadikke@yandex.ru
Honored Scientist and Education Worker, MD, Professor of the Department of Obstetrics, Gynecology and Reproductive Medicine, Faculty of Advanced Training of Medical Workers, Peoples’ Friendship University of Russia.

Irina Vyacheslavovna SAVELYEVA

Email: saveljeva_iv_omsk@mail.ru
doctor of medical sciences, head of the department of obstetrics and gynecology № 1, Omsk State Medical University. 644043, Russia, Omsk, Lenina str. 12

Inna Olegovna LEDOVSKIKH

Email: innaledo@mail.ru
assistant of the Department of Department of Radiation Diagnostics, doctor of ultrasonic diagnostics of the Department of Reproductive and Perinatal Medicine, Perinatal Center of Regional Clinical Hospital 644011, Russia, Omsk, Beresovaya str. 3

Galina Vladimirovna DUDKOVA

Email: ms.dudkova@mail.ru
doctor obstetrician-gynaecologist, head of the Department of Reproductive and Perinatal Medicine, Perinatal Center of Regional Clinical Hospital 644011, Russia, Omsk, Beresovaya str. 3

Lyudmila L. KLEMENTYEVA

Email: kll_embio@mail.ru
doctor obstetrician-gynaecologist, OOO “Alfa-EmBio”. 644043, Russia, Omsk, Volochayevskaya street, II-I-30P

Olga Yurievna ATAMANENKO

Email: Olechka2108@yandex.ru
doctor obstetrician-gynaecologist of the Department of Reproductive and Perinatal Medicine, Perinatal Center of Regional Clinical Hospital. 644011, Russia, Omsk, Beresovaya str. 3

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