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<article article-type="research-article" dtd-version="1.2" xml:lang="ru" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><front><journal-meta><journal-id journal-id-type="issn">2658-6533</journal-id><journal-title-group><journal-title>Научные результаты биомедицинских исследований</journal-title></journal-title-group><issn pub-type="epub">2658-6533</issn></journal-meta><article-meta><article-id pub-id-type="doi">10.18413/2658-6533-2023-9-2-0-7</article-id><article-id pub-id-type="publisher-id">3078</article-id><article-categories><subj-group subj-group-type="heading"><subject>Клиническая медицина</subject></subj-group></article-categories><title-group><article-title>&lt;strong&gt;Электронный допплеровский фетальный мониторинг и непрямая ЭКГ плода в современном акушерстве (обзор)&lt;/strong&gt;&lt;br /&gt;
&amp;nbsp;</article-title><trans-title-group xml:lang="en"><trans-title>&lt;strong&gt;Doppler fetal monitoring and non-invasive fetal ECG in modern obstetrics (review)&lt;/strong&gt;&lt;br /&gt;
&amp;nbsp;</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Шамарин</surname><given-names>Станислав Вячеславович</given-names></name><name xml:lang="en"><surname>Shamarin</surname><given-names>Stanislav V.</given-names></name></name-alternatives><email>shamarin-med@yandex.ru</email></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Енькова</surname><given-names>Елена Владимировна</given-names></name><name xml:lang="en"><surname>Enkova</surname><given-names>Elena V.</given-names></name></name-alternatives><email>enkova@bk.ru</email></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Ипполитова</surname><given-names>Людмила Ивановна</given-names></name><name xml:lang="en"><surname>Ippolitova</surname><given-names>Lyudmila I.</given-names></name></name-alternatives><email>ippolitovaliuda@yandex.ru</email></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Киселева</surname><given-names>Елена Владимировна</given-names></name><name xml:lang="en"><surname>Kiseleva</surname><given-names>Elena V.</given-names></name></name-alternatives><email>e.v.kiseleva@vrngmu.ru</email></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Хоперская</surname><given-names>Ольга Викторовна</given-names></name><name xml:lang="en"><surname>Khoperskaya</surname><given-names>Оlga V.</given-names></name></name-alternatives><email>smv250587@mail.ru</email></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Черных</surname><given-names>Александр Дмитриевич</given-names></name><name xml:lang="en"><surname>Chernykh</surname><given-names>Alexander D.</given-names></name></name-alternatives><email>alexandr.chernih2017@yandex.ru</email></contrib></contrib-group><pub-date pub-type="epub"><year>2023</year></pub-date><volume>9</volume><issue>2</issue><fpage>0</fpage><lpage>0</lpage><self-uri content-type="pdf" xlink:href="/media/medicine/2023/2/Биомед_исследования-82-101.pdf" /><abstract xml:lang="ru"><p>Актуальность: В настоящее время кардиотокография (КТГ) является одним из ведущих методов оценки состояния плода и маточной активности (схваток) при беременности и в родах. Допплеровская методика кардиотокографии с использованием ультразвуковых датчиков широко распространена в акушерстве. Однако, в последние годы появились работы, посвященные непрямой электрокардиографии (ЭКГ) плода с применением абдоминальных электродов при беременности и в родах. Ультразвуковой фетальный мониторинг и непрямая ЭКГ плода в акушерстве &amp;ndash; это два способа получения записи частоты сердечных сокращений плода (тахограммы) с целью диагностики гипоксии или дистресса плода. Непрямая ЭКГ плода в акушерской практике не используется для диагностики патологии миокарда, нарушений проводимости сердца плода, как у детей и взрослых пациентов. Цель исследования: Оценить роль электронного допплеровского фетального мониторинга и непрямой фетальной ЭКГ в диагностике гипоксии или дистресса плода. Материалы и методы: Выполнен обзор литературы, посвященный роли допплеровского фетального мониторинга и непрямой ЭКГ плода в диагностике гипоксии или дистресса плода при беременности и в родах, по источникам литературы в базах данных Pubmed, Elibrary, Scopus за последние 15 лет. Результаты: Анализ данных литературы показал широкое применение ультразвукового фетального мониторинга в диагностике гипоксии или дистресса плода по сравнению с непрямой фетальной ЭКГ на сегодняшний день развития медицинской техники. Большинство публикаций по непрямой ЭКГ плода описывали качество сигнала, единичные источники литературы посвящены диагностике гипоксии плода. Заключение: Фетальный мониторинг плода или кардиотокография остается основным методом диагностики гипоксии или дистресса плода. Непрямая ЭКГ плода является альтернативой электронному допплеровскому фетальному мониторингу. Однако имеет место недостаточная надежность непрямой ЭКГ плода в диагностике гипоксии или дистресса плода по сравнению с ультразвуковой кардиотокографией.</p></abstract><trans-abstract xml:lang="en"><p>Background:&amp;nbsp;Cardiotocography (electronic fetal monitoring) is a procedure of recoding fetal heart rate activity and uterine contractions during pregnancy and labor. The Doppler technique of cardiotocography using ultrasound transducers is widely used in obstetrics. However, in recent years there have been published articles on the subject of fetal electrocardiography (fECG) using abdominal electrodes during pregnancy and labor. Ultrasound fetal monitoring and non-invasive fetal ECG in obstetrics are two ways to obtain fetal heart rate (tachogram) recordings to diagnose fetal hypoxia or distress. Non-invasive fetal ECG in obstetric practice is not used to diagnose myocardial pathology, fetal cardiac conduction abnormalities both in pediatric and adult patients. The aim of the study:&amp;nbsp;To evaluate the role of electronic Doppler fetal monitoring and non-invasive fetal ECG in the diagnosis of fetal hypoxia or distress. Materials and methods:&amp;nbsp;A literature review of the role of fetal Doppler monitoring and non-invasive fetal ECG in the diagnosis of fetal hypoxia or distress in pregnancy and labor was performed using literature sources from the Pubmed, Elibrary, and Scopus databases for the past 15 years. Results:&amp;nbsp;Analysis of the literature data has shown the widespread use of ultrasound fetal monitoring for testing for fetal hypoxia or distress compared with non-invasive fetal ECG at present. Most publications on non-invasive fetal ECG have described signal quality, with only a few literature sources devoted to the diagnosis of fetal hypoxia. Conclusion:&amp;nbsp;Cardiotocography is the clinical method of choice for testing for fetal hypoxia or distress during pregnancy and labor. In contrast, non-invasive fetal electrocardiography is an alternative to Doppler ultrasound cardiotocography for assessment of fetal well-being. However, non-invasive fetal ECG has a lack of reliability for assessment of fetal well-being compared to Doppler ultrasound cardiotocography.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дистресс плода</kwd><kwd>кардиотокография</kwd><kwd>фетальная электрокардиография</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fetal distress</kwd><kwd>cardiotocography</kwd><kwd>fetal electrocardiography</kwd></kwd-group></article-meta></front><back><ref-list><title>Список литературы</title><ref id="B1"><mixed-citation>Zhu LA, Blanc J, Heckenroth H, et al. Fetal physiology cardiotocography training, a regional evaluation. Journal of Gynecology Obstetrics and Human Reproduction. 2021;50(6):102039. DOI: https://doi.org/10.1016/j.jogoh.2020.102039</mixed-citation></ref><ref id="B2"><mixed-citation>Baker&amp;nbsp;H,&amp;nbsp;Pilarski&amp;nbsp;N,&amp;nbsp;Hodgetts-Morton VA, et al. Comparison of visual and computerised antenatal cardiotocography in the prevention of perinatal morbidity and mortality.&amp;nbsp;A systematic review and meta-analysis. European Journal of Obstetrics and Gynecology and Reproductive Biology.&amp;nbsp;2021;263:33-43. DOI: https://doi.org/10.1016/j.ejogrb.2021.05.048</mixed-citation></ref><ref id="B3"><mixed-citation>Campanile M, D&amp;#39;Alessandro P, Corte LD, et al. Intrapartum cardiotocography with and without computer analysis: a systematic review and meta-analysis of randomized controlled trials. Journal of Maternal-Fetal and Neonatal Medicine. 2020;33(13):2284-2290. DOI: https://doi.org/10.1080/14767058.2018.1542676</mixed-citation></ref><ref id="B4"><mixed-citation>Ayres-de-Campos D, Spong CY, Chandraharan E. FIGO consensus guidelines on intrapartum fetal monitoring: Cardiotocography. FIGO Intrapartum Fetal Monitoring Expert Consensus Panel. International Journal of Gynecology and Obstetrics. 2015;131(1):13-24. DOI: https://doi.org/10.1016/j.ijgo.2015.06.020</mixed-citation></ref><ref id="B5"><mixed-citation>Pinas A, Chandraharan E. Continuous cardiotocography during labour: Analysis, classification and management. Best Practice and Research Clinical Obstetrics and Gynaecology. 2016;30:33-47. DOI: https://doi.org/10.1016/j.bpobgyn.2015.03.022</mixed-citation></ref><ref id="B6"><mixed-citation>Reinhard J, Hayes-Gill BR, Yi Q, et al. Comparison of non-invasive fetal electrocardiogram to Doppler cardiotocogram during the 1st stage of labor. Journal of Perinatal Medicine. 2010;38(2):179-185. DOI: https://doi.org/10.1515/jpm.2010.025</mixed-citation></ref><ref id="B7"><mixed-citation>Reinhard J, Hayes-Gill BR, Schiermeier S, et al. Intrapartum signal quality with external fetal heart rate monitoring: a two way trial of external Doppler CTG ultrasound and the abdominal fetal electrocardiogram. Archives of Gynecology and Obstetrics. 2012;286(5):1103-1107. DOI: https://doi.org/10.1007/s00404-012-2413-4</mixed-citation></ref><ref id="B8"><mixed-citation>Marzbanrad F, Stroux L, Clifford GD. Cardiotocography and beyond: a review of one-dimensional Doppler ultrasound application in fetal monitoring. Physiological Measurement. 2018;39(8):08TR01. DOI: https://doi.org/10.1088/1361-6579/aad4d1</mixed-citation></ref><ref id="B9"><mixed-citation>Knupp RJ, Andrews WW, Tita ATN. The future of electronic fetal monitoring. Best Practice and Research Clinical Obstetrics and Gynaecology. 2020;67:44-52. DOI: https://doi.org/10.1016/j.bpobgyn.2020.02.004</mixed-citation></ref><ref id="B10"><mixed-citation>Hamelmann P, Vullings R, Kolen AF, et al. Doppler Ultrasound Technology for Fetal Heart Rate Monitoring: A Review. IEEE transactions on ultrasonics, ferroelectrics and frequency control. 2020;67(2):226-238. DOI: https://doi.org/10.1109/TUFFC.2019.2943626</mixed-citation></ref><ref id="B11"><mixed-citation>Шамарин СВ. Международные стандарты кардиотокографии. Системный анализ и управление в биомедицинских системах. 2010;9(2):357-365.</mixed-citation></ref><ref id="B12"><mixed-citation>Warncke&amp;nbsp;AB,&amp;nbsp;Zb&amp;auml;ren&amp;nbsp;S,&amp;nbsp;Bolla D, et al. Is computerized cardiotocography useful in monochorionic twins with selective intrauterine growth restriction. Journal of Maternal-Fetal and Neonatal Medicine.&amp;nbsp;2022;35(1):116-121. DOI:&amp;nbsp;https://doi.org/10.1080/14767058.2020.1712708</mixed-citation></ref><ref id="B13"><mixed-citation>Alsayyari A. Fetal cardiotocography monitoring using Legendre neural networks. Biomedizinische Technik. 2019;64(6):669-675. DOI: https://doi.org/10.1515/bmt-2018-0074</mixed-citation></ref><ref id="B14"><mixed-citation>Kouskouti C, Regner K, Knabl J, et al. Cardiotocography and the evolution into computerised cardiotocography in the management of intrauterine growth restriction. Archives of gynecology and obstetrics. 2017;295(4):811-816. DOI: https://doi.org/10.1007/s00404-016-4282-8</mixed-citation></ref><ref id="B15"><mixed-citation>Warrick PA, Hamilton EF. Information theoretic measures of perinatal cardiotocography synchronization. Mathematical Biosciences and Engineering. 2020;17(3):2179-2192. DOI: https://doi.org/10.3934/mbe.2020116</mixed-citation></ref><ref id="B16"><mixed-citation>Gragnano E, Saccone G, Tagliaferri S, et al. Computerized cardiotocography in singleton gestations with diabetes mellitus: a retrospective study. Minerva Obstetrics and Gynecology. 2022;74(2):161-164. DOI: https://doi.org/10.23736/s2724-606x.21.04786-2</mixed-citation></ref><ref id="B17"><mixed-citation>Castelijn B, Hollander K, Hensbergen JF, et al. Peripartum fetal distress in diabetic women: a retrospective case-cohort study. BMC Pregnancy and Childbirth. 2018;18(1):228. DOI: https://doi.org/10.1186/s12884-018-1880-4</mixed-citation></ref><ref id="B18"><mixed-citation>Seliger G, Petroff D, Seeger S, et al. Diurnal variations of short-term variation and the impact of multiple recordings on measurement accuracy. Journal of Perinatology. 2017;37(3):231-235. DOI: https://doi.org/10.1038/jp.2016.202</mixed-citation></ref><ref id="B19"><mixed-citation>Шамарин СВ. Клинический опыт использования современных методик анализа КТГ в России. Системный анализ и управление в биомедицинских системах. 2015;14(3):510-515.</mixed-citation></ref><ref id="B20"><mixed-citation>Ayres-de-Campos D, Nogueira-Reis Z. Technical characteristics of current cardiotocographic monitors. Best Practice and Research in Clinical Obstetrics and Gynaecology. 2016;30:22-32. DOI: https://doi.org/10.1016/j.bpobgyn.2015.05.005</mixed-citation></ref><ref id="B21"><mixed-citation>Hamelmann P, Kolen A, Schmitt L, et al. Ultrasound transducer positioning aid for fetal heart rate monitoring. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 2016:4105-4108. DOI: https://doi.org/10.1109/EMBC.2016.7591629</mixed-citation></ref><ref id="B22"><mixed-citation>Sbrollini A, Agostinelli A, Marcantoni I, et al. &amp;nbsp;eCTG: an automatic procedure to extract digital cardiotocographic signals from digital images. Comput Methods Programs Biomed. 2018;156:133-139. DOI: https://doi.org/10.1016/j.cmpb.2017.12.030</mixed-citation></ref><ref id="B23"><mixed-citation>Chowdhury S, Frasch MG, Lucchini M, et al. A Novel Method for the Extraction of Fetal ECG Signals from Wearable Devices. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 2022:1319-1322. DOI: https://doi.org/10.1109/EMBC48229.2022.9870899</mixed-citation></ref><ref id="B24"><mixed-citation>Wacker-Gussmann A, Plankl C, Sewald M, et al. Fetal cardiac time intervals in healthy pregnancies - an observational study by fetal ECG (Monica Healthcare System). Journal of Perinatal Medicine. 2018;46(6):587-592. DOI: https://doi.org/10.1515/jpm-2017-0003</mixed-citation></ref><ref id="B25"><mixed-citation>Lempersz C, Noben L, Osta G, et al. Intrapartum non-invasive electrophysiological monitoring: A prospective observational study. Acta Obstetricia et Gynecologica Scandinavica. 2020;99(10):1387-1395. DOI: https://doi.org/10.1111/aogs.13873</mixed-citation></ref><ref id="B26"><mixed-citation>S&amp;auml;nger N, Hayes-Gill BR, Schiermeier S, et al. Prenatal Foetal Non-invasive ECG instead of Doppler CTG - A Better Alternative. Geburtshilfe und Frauenheilkunde. 2012;72(7):630-633. DOI: https://doi.org/10.1055/s-0032-1315012</mixed-citation></ref><ref id="B27"><mixed-citation>Приходько АМ, Романов АЮ, Тысячный ОВ, и др. Современные принципы кардиотокографии в родах. Медицинский совет. 2020;3:90-97. DOI: https://doi.org/10.21518/2079-701X-2020-3-90-97</mixed-citation></ref><ref id="B28"><mixed-citation>Шамарин СВ. Международная система интерпретации данных кардиотокограмм: FIGO и другие. Системный анализ и управление в биомедицинских системах. 2016;15(4):723-733.</mixed-citation></ref><ref id="B29"><mixed-citation>Fuchs T, Pomorski M, Grobelak K, et al. Signal loss during fetal heart rate monitoring using maternal abdominal surface electrodes between 28 and 42 weeks of pregnancy. Advances in Clinical and Experimental Medicine. 2014;23(5):813-819. DOI: https://doi.org/10.17219/acem/37258</mixed-citation></ref><ref id="B30"><mixed-citation>Arya B, Govindan R, Krishnan A, et al. Feasibility of Noninvasive Fetal Electrocardiographic Monitoring in a Clinical Setting. Pediatric Cardiology. 2015;36(5):1042-1049. DOI: https://doi.org/10.1007/s00246-015-1118-4</mixed-citation></ref><ref id="B31"><mixed-citation>Reinhard J, Hatzmann H, Schiermeier S. Foetal electrocardiography (ECG) is an alternative to Doppler ultrasound cardiotocogram (CTG) for antenatal assessment of foetal well-being--preliminary results. Journal of Obstetrics and Neonatology. 2008;212(6):226-9. DOI: https://doi.org/10.1055/s-0028-1098718</mixed-citation></ref><ref id="B32"><mixed-citation>Graatsma EM, Miller J, Mulder EJ, et al. Maternal body mass index does not affect performance of fetal electrocardiography. American Journal of Perinatology. 2010;27(7):573-577. DOI: https://doi.org/10.1055/s-0030-1248945</mixed-citation></ref><ref id="B33"><mixed-citation>S&amp;auml;nger N, Louwen F, Reinhard J, et al. Signal quality of non-invasive fetal electrocardiogram in vaginal breech delivery: a case-controlled study. Archives of Gynecology and Obstetrics. 2013;288(5):1017-20. DOI: https://doi.org/10.1007/s00404-013-2860-6</mixed-citation></ref><ref id="B34"><mixed-citation>Reinhard J, Hayes-Gill B, Yuan J, et al. Intrapartum ST segment analyses (STAN) using simultaneous invasive and non-invasive fetal electrocardiography: a report of 6 cases. Zeitschrift fur Geburtshilfe und Neonatologie. 2014;218(3):122-127. DOI: https://doi.org/10.1055/s-0034-1375606</mixed-citation></ref><ref id="B35"><mixed-citation>DiPietro J,&amp;nbsp;Watson&amp;nbsp;H,&amp;nbsp;Raghunathan RS. Measuring fetal heart rate and variability: Fetal cardiotocography versus electrocardiography. Developmental Psychobiology.&amp;nbsp;2022;64(1):e22230. DOI:&amp;nbsp;https://doi.org/10.1002/dev.22230</mixed-citation></ref><ref id="B36"><mixed-citation>Kisilevsky BS, Brown СA. Comparison of fetal and maternal heart rate measures using electrocardiographic and cardiotocographic methods. Infant Behavior and Development. 2016;42:142-151. DOI: https://doi.org/10.1016/j.infbeh.2015.12.004</mixed-citation></ref><ref id="B37"><mixed-citation>Enkova EV, Shamarin SV, Bychkov VI, et al. The comparative review of the ultrasound Doppler cardiotocography (CTG) and indirect fetal electrocardiography (FECG) for assessment of fetal well-being. Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2017;8(2):1196-1201.</mixed-citation></ref><ref id="B38"><mixed-citation>Georgieva A, Papageorghiou AT, Payne SJ, et al. Authors&amp;#39; reply: Computerised interpretation of fetal heart rate patterns and correlation with fetal acidaemia. International Journal of Obstetrics and Gynaecology. 2014;121(13):1747-1748. DOI: https://doi.org/10.1111/1471-0528.13040</mixed-citation></ref><ref id="B39"><mixed-citation>Holzmann M, Wretler S, Cnattingius S, et al. Cardiotocography patterns and risk of intrapartum fetal academia. Journal of Perinatal Medicine. 2015;43(4):473-479. DOI: https://doi.org/10.1515/jpm-2014-0105</mixed-citation></ref><ref id="B40"><mixed-citation>Shrestha S, Shrestha I. Admission Cardiotocography in Predicting Perinatal Outcome. Kathmandu University Medical Journal.&amp;nbsp;2019;17(67):201-205.</mixed-citation></ref><ref id="B41"><mixed-citation>Huhn EA, M&amp;uuml;ller MI, Meyer AH, et al. Quality Predictors of Abdominal Fetal Electrocardiography Recording in Antenatal Ambulatory and Bedside Settings. Fetal Diagnosis and Therapy. 2017;41(4):283-292. DOI: https://doi.org/10.1159/000448946</mixed-citation></ref><ref id="B42"><mixed-citation>Crawford A, Anyadi P, Stephens L, et al. A mixed-methods evaluation of continuous electronic fetal monitoring for an extended period. Acta Obstetricia et Gynecologica Scandinavica. 2018;97(12):1515-1523. DOI: https://doi.org/10.1111/aogs.13446</mixed-citation></ref><ref id="B43"><mixed-citation>Ibrahim S, Jarefors E, Nel DG, et al. Effect of maternal position and uterine activity on periodic maternal heart rate changes before elective cesarean section at term. Acta Obstetricia et Gynecologica Scandinavica. 2015;94(12):1359-66. DOI: https://doi.org/10.1111/aogs.12763</mixed-citation></ref><ref id="B44"><mixed-citation>Kapaya H, DimelowER, Anumba D. Is portable foetal electrocardiogram monitor feasible for foetal heart rate monitoring of small for gestational age foetuses in the home environment. Journal of Obstetrics and Gynaecology. 2019;39(8):1081-1086. DOI: https://doi.org/10.1080/01443615.2019.1587394</mixed-citation></ref><ref id="B45"><mixed-citation>Bhatia SS, Burgess WH, Skinner JR. Fetal Tachycardia in the Delivery Room: Fetal Distress, Supraventricular Tachycardia, or Both. American Journal of Perinatology Reports. 2020;10(4):e380-e385. DOI: https://doi.org/10.1055/s-0040-1718900</mixed-citation></ref><ref id="B46"><mixed-citation>Dawes GS, Lobb M, Moulden M, et al. Antenatal cardiotocogram quality and interpretation using computers. International Journal of Obstetrics and Gynaecology. 2014;121(7):2-8. DOI: https://doi.org/10.1111/1471-0528.13208</mixed-citation></ref><ref id="B47"><mixed-citation>Демидов ВН, Воронкова МА, Вахтеркина КГ, и др. Новые диагностические возможности антенатального фетального монитора отечественного производства. Акушерство и гинекология. 2018;8:143-50. DOI: https://dx.doi.org/10.18565/aig.2018.8.143-150</mixed-citation></ref><ref id="B48"><mixed-citation>Crequit S, Tataru C, Coste E, et al. Association of fetal heart rate short term variability pattern during term labor with neonatal morbidity and small for gestational age status. European Journal of Obstetrics and Gynecology and Reproductive Biology. 2022;278:77-89. DOI: https://doi.org/10.1016/j.ejogrb.2022.08.026</mixed-citation></ref><ref id="B49"><mixed-citation>Nazir L, Lakhta G, Anees K, et al. Admission Cardiotocography as a Predictor of Low Apgar Score: An Observational, Cross-Sectional Study. Cureus. 2021;13(4):e14530. DOI: https://doi.org/10.7759/cureus.14530</mixed-citation></ref><ref id="B50"><mixed-citation>Warmerdam GJ, Vullings R, Laar JV, et al. Detection rate of fetal distress using contraction-dependent fetal heart rate variability analysis. Physiological Measurement. 2018;39(2):025008. DOI: https://doi.org/10.1088/1361-6579/aaa925</mixed-citation></ref><ref id="B51"><mixed-citation>Strasser SM, Kwee A, Visser GH. Spontaneous tachysystole as sign of serious perinatal conditions. Journal of Maternal-Fetal and Neonatal Medicine. 2010;23(7):736-741. DOI: https://doi.org/10.3109/14767050903300951</mixed-citation></ref><ref id="B52"><mixed-citation>Leathersich SJ, Vogel JP, Tran TS, et al. Acute tocolysis for uterine tachysystole or suspected fetal distress. Cochrane Database of Systematic Reviews. 2018;7(7):CD009770. DOI: https://doi.org/10.1002/14651858.CD009770.pub2</mixed-citation></ref><ref id="B53"><mixed-citation>Tarvonen M,&amp;nbsp;Hovi P,&amp;nbsp;Sainio S,&amp;nbsp;et al. Intrapartal cardiotocographic patterns and hypoxia-related perinatal outcomes in pregnancies complicated by gestational diabetes mellitus. Acta Diabetologica.&amp;nbsp;2021;58(11):1563-1573. DOI:&amp;nbsp;https://doi.org/10.1007/s00592-021-01756-0</mixed-citation></ref><ref id="B54"><mixed-citation>Redman CW. Avoiding CTG misinterpretation: A review of the latest Dawes-Redman CTG analysis [Internet]. British Journal of Midwifery. Clinical practice. 2014 [cited 2023 January 20];1-4. Available from: https://irp.cdn-website.com/a7c96b08/files/uploaded/BJM_Avoiding_CTG_misinterpretation_-_Redman__Moulden.pdf</mixed-citation></ref><ref id="B55"><mixed-citation>Noben L, Westerhuis ME, Laar JO, et al. Feasibility of non-invasive Foetal electrocardiography in a twin pregnancy. BMC Pregnancy and Childbirth. 2020;20(1):215. DOI: https://doi.org/10.1186/s12884-020-02918-8</mixed-citation></ref><ref id="B56"><mixed-citation>Keenan E, Udhayakumar RK, Karmakar CK, et al. Entropy Profiling for Detection of Fetal Arrhythmias in Short Length Fetal Heart Rate Recordings. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 2020:621-624. DOI: https://doi.org/10.1109/EMBC44109.2020.9175892</mixed-citation></ref><ref id="B57"><mixed-citation>Behar JA, Bonnemains L, ShulginV, et al. Noninvasive fetal electrocardiography for the detection of fetal arrhythmias. Prenatal Diagnosis. 2019;39(3):178-187. DOI: https://doi.org/10.1002/pd.5412</mixed-citation></ref><ref id="B58"><mixed-citation>Фисенко АМ, Савельева ГМ, Караганова ЕЯ. Значимость кардиотокографии и лактат-теста в оценке состояния плода во время родов. Вопросы гинекологии, акушерства и перинатологии. 2018;17(6):63-68. DOI: https://doi.org/10.20953/1726-1678-2018-6-63-68</mixed-citation></ref><ref id="B59"><mixed-citation>Вихарева ОН, Баев ОР, Воеводин СМ и др. Применение кардиотокографии в родах. Клинический протокол [электронный ресурс]. Акушерство и гинекология. 2015 [дата обращения: 22.05.2022];4:12-13. URL: https://umrd.ru/files/SPECIALISTAM/Protokoly/protokol_md_15_.pdf</mixed-citation></ref><ref id="B60"><mixed-citation>Lempersz C, Noben L, Vries B, et al. The Noninvasive Fetal Electrocardiogram During Labor: A Review of the Literature. Obstetrical and Gynecological Survey. 2020;75(6):369-380. DOI: https://doi.org/10.1097/OGX.0000000000000798</mixed-citation></ref></ref-list></back></article>