<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Regional Anesthesia and Acute Pain Management</journal-id><journal-title-group><journal-title xml:lang="en">Regional Anesthesia and Acute Pain Management</journal-title><trans-title-group xml:lang="ru"><trans-title>Регионарная анестезия и лечение острой боли</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1993-6508</issn><issn publication-format="electronic">2687-1394</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">690517</article-id><article-id pub-id-type="doi">10.17816/RA690517</article-id><article-id pub-id-type="edn">FTPTHP</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original study articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Effect of the transversus abdominis plane block on the postoperative course of cesarean section in women with preeclampsia: a single-center, prospective, randomized study</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние TAP-блока на течение послеоперационного периода кесарева сечения у женщин с преэклампсией: одноцентровое проспективное рандомизированное исследование</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7667-910X</contrib-id><contrib-id contrib-id-type="spin">9065-5660</contrib-id><name-alternatives><name xml:lang="en"><surname>Davydov</surname><given-names>Vladimir V.</given-names></name><name xml:lang="ru"><surname>Давыдов</surname><given-names>Владимир Валентинович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Assistant Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, доцент</p></bio><email>6davv@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-9822-1604</contrib-id><contrib-id contrib-id-type="spin">9036-8590</contrib-id><name-alternatives><name xml:lang="en"><surname>Safonov</surname><given-names>Vladimir P.</given-names></name><name xml:lang="ru"><surname>Сафонов</surname><given-names>Владимир Павлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>safonof-w@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Altai State Medical University</institution></aff><aff><institution xml:lang="ru">Алтайский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Altai Regional Clinical Perinatal Center</institution></aff><aff><institution xml:lang="ru">Алтайский краевой клинический перинатальный центр</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-12-22" publication-format="electronic"><day>22</day><month>12</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-12-31" publication-format="electronic"><day>31</day><month>12</month><year>2025</year></pub-date><volume>19</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>345</fpage><lpage>356</lpage><history><date date-type="received" iso-8601-date="2025-09-17"><day>17</day><month>09</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-11-24"><day>24</day><month>11</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Эко-Вектор</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://eco-vector.com/for_authors.php#07</ali:license_ref></license></permissions><self-uri xlink:href="https://rjraap.com/1993-6508/article/view/690517">https://rjraap.com/1993-6508/article/view/690517</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> In women with preeclampsia, the need for continuation of antihypertensive therapy after abdominal delivery persists. Postoperative pain may contribute to the set of factors underlying hypertension. The effect of the transversus abdominis plane (TAP) block on the course of hypertension in women with preeclampsia after cesarean section remains insufficiently studied.</p> <p><bold>AIM:</bold> This study aimed to comparatively evaluate pain intensity, hemodynamic parameters, and the requirement for analgesic and antihypertensive therapy in women with preeclampsia during the first 24 hours after cesarean section under multimodal analgesia alone and multimodal analgesia supplemented with TAP block.</p> <p><bold>METHODS:</bold> Women with preeclampsia (<italic>n</italic> = 104) were randomized into two groups. Group 1 (<italic>n</italic> = 54) received multimodal analgesia; group 2 (<italic>n</italic> = 50) received multimodal analgesia combined with TAP block. The study included assessment of pain intensity using the visual analog scale, blood pressure, and heart rate before surgery and at 3, 6, 12, and 24 hours postoperatively. Blood glucose and serum cortisol concentrations were measured preoperatively and at 12 and 24 hours after surgery. Cardiac index and total peripheral vascular resistance were evaluated before surgery and at 24 hours postoperatively. Analgesic load and antihypertensive therapy were analyzed and compared between groups 24 hours after surgery.</p> <p><bold>RESULTS:</bold><bold> </bold>During the first postoperative day, visual analog scale pain scores, as well as blood glucose and cortisol concentrations, were significantly higher in group 1 compared with group 2. The frequency of trimeperidine administration in group 1 was increased twofold (<italic>p</italic> = 0.000), and tramadol administration increased 45.5-fold (<italic>p</italic> = 0.000). Antihypertensive therapy was modified as follows: to correct hypotension in 13.0% of patients in group 1 and 46.0% in group 2 (<italic>p</italic> = 0.002); to correct hypertension in 46.3% and 16.0% of patients, respectively (<italic>p</italic> = 0.006). These adjustments allowed maintaining target arterial blood pressure values in groups. Cardiac output and total peripheral vascular resistance did not differ between groups before and after surgery. No adverse reactions associated with TAP block were observed.</p> <p><bold>CONCLUSIONS:</bold> TAP block provided lower postoperative pain intensity and reduced opioid consumption in women with preeclampsia after cesarean section. Improved analgesic efficacy reduced the incidence of progression of hypertension by 2.4-fold and increased the number of patients showing a tendency toward resolution of hypertension by 3.5-fold during the first postoperative day. Adjustment of antihypertensive therapy under TAP block conditions had no negative effect on cardiac output or total peripheral vascular resistance. The study is limited by its single-center design and by the inability to exclude the influence of the visceral pain component on hypertension.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> У женщин с преэклампсией сохраняется необходимость продолжения антигипертензивной терапии после абдоминального родоразрешения. Послеоперационная боль может дополнять комплекс причин артериальной гипертензии. Влияние применения TAP-блока на течение артериальной гипертензии у женщин с преэклампсией после кесарева сечения мало изучено.</p> <p><bold>Цель </bold>— провести сравнительную оценку интенсивности боли, гемодинамики, потребности в анальгетиках и антигипертензивных препаратах у пациенток с преэклампсией в первые сутки после кесарева сечения в условиях мультимодальной аналгезии и мультимодальной аналгезии, дополненной TAP-блоком.</p> <p><bold>Методы.</bold> Пациентки с преэклампсией (<italic>n</italic> = 104) рандомизированы на 2 группы. В 1-й группе (<italic>n</italic> = 54) проводилась мультимодальная аналгезия, во 2-й группе (<italic>n</italic> = 50) её дополняли TAP-блоком. Исследование включало оценку боли по визуальной аналоговой шкале, артериального давления, частоты сердечных сокращений до операции и через 3, 6, 12 и 24 часа после операции. Концентрации глюкозы крови и кортизола сыворотки изучали до операции и через 12 и 24 часа после операции. Сердечный индекс и общее периферическое сопротивление сосудов оценивали до операции и через 24 часа после операции. Нагрузка анальгетиками и антигипертензивная терапия изучалась и сравнивалась в группах через сутки после операции.</p> <p><bold>Результаты. </bold>В первые сутки после операции показатели боли по визуальной аналоговой шкале, а также концентрации глюкозы и кортизола были статистически значимо выше в 1-й группе, чем во 2-й. Кратность введения тримеперидина в 1-й группе увеличили в 2 раза (<italic>p</italic> = 0,000), трамадола — в 45,5 раза (<italic>p</italic> = 0,000). Антигипертензивную терапию изменяли: для коррекции гипотензии в 1-й группе у 13,0% пациенток, во 2-й группе — у 46,0% (<italic>p</italic> = 0,002); для коррекции гипертензии у 46,3% и 16,0% соответственно (<italic>p</italic> = 0,006). Это позволило поддерживать в группах целевые показатели артериального давления. Значения сердечного выброса и общего периферического сопротивления сосудов до и после операции в группах не отличались. После проведения TAP-блока не установлено нежелательных реакций.</p> <p><bold>Заключение.</bold> TAP-блок обеспечил низкую интенсивность послеоперационной боли и уменьшил использование опиатов у женщин с преэклампсией после кесарева сечения. Повышение эффективности аналгезии, снизило число случаев прогрессирования артериальной гипертензии в 2,4 раза и увеличило число пациенток с тенденцией к разрешению артериальной гипертензии в 3,5 раза в первые сутки после операции. Коррекция антигипертензивной терапии в условиях TAP-блока не оказала отрицательного влияния на показатели сердечного выброса и общего периферического сопротивления сосудов. Исследование ограничено проведением в 1 центре и невозможностью исключить влияние висцерального компонента боли на артериальную гипертензию.</p></trans-abstract><kwd-group xml:lang="en"><kwd>postoperative pain</kwd><kwd>hypertension</kwd><kwd>preeclampsia</kwd><kwd>cesarean section</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>послеоперационная боль</kwd><kwd>артериальная гипертензия</kwd><kwd>преэклампсия</kwd><kwd>кесарево сечение</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Russian Society of Obstetricians and Gynecologists. Preeclampsia. Eclampsia. Edema, proteinuria and hypertensive disorders during pregnancy, labor and postpartum period. Available from: https://cr.minzdrav.gov.ru/preview-cr/637_2 (In Russ.)</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Irusta PG. De Novo Hypertensive Disorders in the Postpartum Period: Considerations on Diagnosis, Risk Factors, and Potential Intervention Strategies. Hipertens Riesgo Vasc. 2025;42(1):29–35. doi: 10.1016/j.hipert.2024.09.001 EDN: ULDOTO</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Davydov VV, Safonov VP. Postoperative pain as a cause of hypertension progression in women with preeclampsia after cesarean section. Russian journal of pain. 2025;23(2):83–90. doi: 10.17116/pain20252302183 EDN: JPMTVA</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Lin R, Lu Y, Luo W, et al. Risk factors for postpartum depression in women undergoing elective cesarean section: a prospective cohort study. Front Med (Lausanne). 2022;9:1001855. doi:10.3389/fmed.2022.1001855 EDN: UKRPUX</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Postoyalko DA, Shifman EM, Bykov AO, et al. Optimal Volume of Ropivacaine Solution for Bilateral Quadratus Lumborum Block to Provide Postoperative Analgesia After Cesarean Section: A Prospective, Randomized, Cohort Study. Regional anesthesia and acute pain management. 2025;19(2):153–163. doi: 10.17816/RA657498 EDN: TCZUQJ</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Qian H, Zhang Q, Zhu P, et al. Ultrasound-guided transversus abdominis plane block using ropivacaine and dexmedetomidine in patients undergoing caesarian sections to relieve post-operative analgesia: A randomized controlled clinical trial. Exp Ther Med. 2020;20(2):1163–1168. doi: 10.3892/etm.2020.8781 EDN: SPJUXU</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Nag DS, Gehlot P, Sharma P, et al. Comparative Study of Ropivacaine and Ropivacaine With Dexmedetomidine in Transversus Abdominis Plane (TAP) Block for Post-operative Analgesia in Patients Undergoing Cesarean Sections. Cureus. 2024;16(7):e65588. doi: 10.7759/cureus.65588 EDN: JGFLTN</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Kolesnikov YuA. Peripheral nociceptive mechanisms — targets for local painkillers. Russian Journal of Pain. 2023;21(1):52–59. doi: 10.17116/pain20232101152 EDN: HCIGXF</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Pichardo-Carmona EY, Reyes-Lagos JJ, Ceballos-Juárez RG, et al. Changes in the autonomic cardiorespiratory activity in parturient women with severe and moderate features of preeclampsia. Front Immunol. 2023;14:1190699. doi: 10.3389/fimmu.2023.1190699 EDN: JVEUPQ</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Hirose M, Okutani H, Hashimoto K, et al. Intraoperative assessment of surgical stress response using nociception monitor under general anesthesia and postoperative complications: a narrative review. J Clin Med. 2022;11(20):6080. doi: 10.3390/jcm11206080 EDN: WADMXK</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Samajdar SS, Sarkar S, Bhadra A, et al. Sympathetic neurofunction testing in gestational hypertension and relationship with developing preeclampsia and eclampsia: real-world evidences from clinical pharmacology clinics. J Assoc Physicians India. 2024;72(3):47–50. doi: 10.59556/japi.72.0484 EDN: EWBFQE</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Sorsunov SV, Efimenko MYu, Gritsan AI. Effectiveness of transverse abdominis plane blocks in abdominal surgery in hernioplasty. Regional Anesthesia and Acute Pain Management. 2021;15(3):223–232. doi: 10.17816/1993-6508-2021-15-3-223-232 EDN: SQEWGT</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Upryamova EY, Shifman EM, Degtyarev PA, et al. Postoperative pain relief quality after cesarean section using a stress monitor (neon fsc system): prospective single-center randomized clinical comparative study. Regional Anesthesia and Acute Pain Management. 2023;17(4):267–277. doi: 10.17816/RA608168 EDN: YYQJTD</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Klepcha TI, Dudko VA, Lipnitskiy AL, et al. Use of concomitant anesthesia (endotracheal anesthesia and femoral nerve block) in cardiac surgery: a prospective, cross-sectional study. Regional Anesthesia and Acute Pain Management. 2024;18(1):63–71. doi: 10.17816/RA624309 EDN: RBFBCV</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Hauspurg A, Jeyabalan A. Postpartum preeclampsia or eclampsia: defining its place and management among the hypertensive disorders of pregnancy. Am J Obstet Gynecol. 2022;226(2S):1211–1221. doi: 10.1016/j.ajog.2020.10.027 EDN: RVISEH</mixed-citation></ref></ref-list></back></article>
