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Yi X, Zhang D, Yang J, Gao H, Cai H, Cong J, Lin C. Analysis of perinatal outcomes for emergency cervical cerclage in singleton pregnancies at 24-28 weeks of gestation. Arch Gynecol Obstet 2024; 310:229-235. [PMID: 38649500 PMCID: PMC11168987 DOI: 10.1007/s00404-024-07493-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 03/24/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Cervical cerclage is the only effective treatment for cervical insufficiency, effectively preventing late miscarriage and preterm birth. The effectiveness and safety of emergency cervical cerclage (ECC) as an emergency treatment when the cervix is already dilated or when there is protrusion of the fetal membranes into the vagina remain controversial, especially in pregnancies at 24-28 weeks when the fetus is viable. There is still no consensus on whether emergency cervical cerclage should be performed in such cases. PURPOSE To investigate the effectiveness and safety of emergency cervical cerclage in singleton pregnant women at 24-28 weeks of gestation. METHODS This study employed a single-center prospective cohort design, enrolling singleton pregnant women at 24-28 weeks of gestation with ultrasound or physical examination indicating cervical dilation or even membrane protrusion. Emergency cervical cerclage was compared with conservative treatment. The primary endpoints included a comprehensive assessment of perinatal pregnancy loss, significant neonatal morbidity, and adverse neonatal outcomes. Secondary endpoints included prolonged gestational age, preterm birth, neonatal hospitalization rate, premature rupture of membranes, and intrauterine infection/chorioamnionitis. RESULTS From June 2021 to March 2023, a total of 133 pregnant women participated in this study, with 125 completing the trial, and were allocated to either the Emergency Cervical Cerclage (ECC) group (72 cases) or the conservative treatment group (53 cases) based on informed consent from the pregnant women. The rate of adverse neonatal outcomes was 8.33% in the ECC group and 26.42% in the conservative treatment (CT) group, with a statistically significant difference (P = 0.06). There were no significant differences between the two groups in terms of perinatal pregnancy loss and significant neonatal morbidity. The conservative treatment group had a mean prolonged gestational age of 63.0 (23.0, 79.5) days, while the ECC group had 84.0 (72.5, 89.0) days, with a statistically significant difference between the two groups (P < 0.001). Compared with CT group, the ECC group showed a significantly reduced incidence of preterm birth before 28 weeks, 32 weeks, and 34 weeks, with statistical significance (P = 0.046, 0.007, 0.001), as well as a significantly decreased neonatal hospitalization rate (P = 0.013, 0.031). Additionally, ECC treatment did not increase the risk of preterm premature rupture of membranes or intrauterine infection/chorioamnionitis, with no statistically significant differences (P = 0.406, 0.397). CONCLUSION In singleton pregnant women with cervical insufficiency at 24-28 weeks of gestation, emergency cervical cerclage can reduce adverse neonatal pregnancy outcomes, effectively prolong gestational age, decrease preterm births before 28 weeks, 32 weeks, and 34 weeks, lower neonatal hospitalization rates, and does not increase the risk of preterm premature rupture of membranes or intrauterine infection/chorioamnionitis.
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Affiliation(s)
- Xiling Yi
- Department of Obstetrics and Gynaecology, Shenyang Women's and Children's Hospital, Shenyang, 110000, Liaoning, China
| | - Dan Zhang
- Department of Obstetrics and Gynaecology, Shenyang Women's and Children's Hospital, Shenyang, 110000, Liaoning, China
| | - Jing Yang
- Department of Obstetrics and Gynaecology, Shenyang Women's and Children's Hospital, Shenyang, 110000, Liaoning, China.
| | - Hongyan Gao
- Department of Obstetrics and Gynaecology, Shenyang Women's and Children's Hospital, Shenyang, 110000, Liaoning, China
| | - Hengyu Cai
- Department of Obstetrics and Gynaecology, Shenyang Women's and Children's Hospital, Shenyang, 110000, Liaoning, China
| | - Jianping Cong
- Department of Obstetrics and Gynaecology, Shenyang Women's and Children's Hospital, Shenyang, 110000, Liaoning, China
| | - Chengli Lin
- Department of Obstetrics and Gynaecology, Shenyang Women's and Children's Hospital, Shenyang, 110000, Liaoning, China
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Salvi P, Gaikwad V, Dsouza A, Ankem S. Rescue Cerclage by McDonald's Technique at 18 Weeks for Cervical Insufficiency With Intravaginal Amniotic Sac: A Case Report. Cureus 2024; 16:e53264. [PMID: 38435960 PMCID: PMC10904929 DOI: 10.7759/cureus.53264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2024] [Indexed: 03/05/2024] Open
Abstract
Recurrent pregnancy loss, premature birth, and associated complications exhibit a multifactorial etiology and persist as substantial challenges during pregnancy, despite the notable advancements in the medical field. Among several factors, cervical insufficiency or incompetence emerges as a prominent causal factor, characterized by painless softening and shortening of the cervix associated with absent contractions. The implementation of emergency cerclage represents a pivotal intervention in mitigating preterm birth among individuals with advanced cervical insufficiency. By extending gestational age, this procedure increases the likelihood of neonatal survival without elevating the risk of chorioamnionitis or preterm rupture of the membranes. In this study, an antenatal woman presented with advanced changes in the cervix along with intravaginal bulging amniotic membranes at 18 weeks and underwent a rescue cervical cerclage, resulting in a successful pregnancy.
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Affiliation(s)
- Pankaj Salvi
- Obstetrics and Gynaecology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
| | - Vidya Gaikwad
- Obstetrics and Gynaecology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
| | - Ashton Dsouza
- Obstetrics and Gynaecology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
| | - Sravani Ankem
- Obstetrics and Gynaecology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
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Diago-Muñoz DM, Martínez-Varea A, Alonso-Díaz R, Perales-Marín A, Diago-Almela VJ. Physical examination-indicated cerclage in twin pregnancies compared with singleton pregnancies. J Matern Fetal Neonatal Med 2023; 36:2228963. [PMID: 37369372 DOI: 10.1080/14767058.2023.2228963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 05/01/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023]
Abstract
OBJECTIVE The aim of this study was to compare pregnancy outcomes of physical examination-indicated cerclage in twin and singleton pregnancies with bulging membranes. METHODS All women with bulging membranes in the second trimester of pregnancy who were admitted to La Fe University and Polytechnic Hospital from January 2009 to January 2022 were included. A total of 128 participants were enrolled, 102 singleton pregnancies and 26 twin pregnancies. All patients underwent an amniocentesis to rule out intra-amniotic inflammation (IL-6 < 2.6 ng/mL). Cerclage was placed in the absence of intra-amniotic inflammation. RESULTS Compared with singleton gestations, twin pregnancies displayed a significantly higher prevalence of nulliparity and assisted reproductive techniques. The incidence of intra-amniotic inflammation/infection was similar in both groups (68.62% in singleton vs. 65.38% in twin pregnancies). The average gestational age of delivery without cerclage in singleton gestations was 23.83 weeks (95% CI 22.82-24.84) and in twin pregnancies, it was 23.69 weeks (95% CI 21.8-25.57). The average gestational age at delivery among patients with cerclage was 37.27 weeks (95% CI 35.35-39.19) in singleton gestations and 36 weeks (95% CI 33.51-38.63) in twin pregnancies, with no significant differences. Time from diagnosis to delivery in patients with IL-6 < 2.6 ng/mL was 79.88 days, and in those with IL > 2.6 ng/mL was 10.87 days. Gestational age at delivery was significantly higher in both singleton and twin pregnancies with cerclage, compared with those without cerclage (log-rank p < .001). CONCLUSIONS Singleton and twin pregnancies with bulging membranes behave similarly when cerclage is placed in the absence of intraamniotic inflammation/infection.
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Affiliation(s)
- D M Diago-Muñoz
- Department of Obstetrics and Gynecology, University Hospital Santa Lucía, Cartagena, Spain
| | - A Martínez-Varea
- Department of Obstetrics and Gynecology, La Fe University and Polytechnic Hospital, Valencia, Spain
| | - R Alonso-Díaz
- Department of Clinical Laboratory, La Fe University and Polytechnic Hospital, Valencia, Spain
| | - A Perales-Marín
- Department of Obstetrics and Gynecology, La Fe University and Polytechnic Hospital, Valencia, Spain
| | - V J Diago-Almela
- Department of Obstetrics and Gynecology, La Fe University and Polytechnic Hospital, Valencia, Spain
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Hulshoff CC, Bosgraaf RP, Spaanderman MEA, Inthout J, Scholten RR, Van Drongelen J. The efficacy of emergency cervical cerclage in singleton and twin pregnancies: a systematic review with meta-analysis. Am J Obstet Gynecol MFM 2023; 5:100971. [PMID: 37084870 DOI: 10.1016/j.ajogmf.2023.100971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/31/2023] [Accepted: 04/09/2023] [Indexed: 04/23/2023]
Abstract
OBJECTIVE An emergency (rescue) cervical cerclage can be offered to pregnant women presenting with dilatation and prolapsed membranes in the second trimester of pregnancy because of cervical insufficiency. This study aimed to investigate the effectiveness of an emergency cerclage in both singleton and twin pregnancies in the prevention of extreme premature birth. DATA SOURCES We performed a systematic literature search in PubMed and Embase from inception to June 2022 for transvaginal cervical emergency cerclages. STUDY ELIGIBILITY CRITERIA All studies on transvaginal cervical emergency cerclages with at least 5 patients and reporting survival were included. METHODS Included studies were assessed for quality and risk of bias with an adjusted Quality In Prognosis Studies tool. Random-effects meta-analyses and meta-regressions were performed for the primary outcome: survival. RESULTS Our search yielded 96 studies, incorporating 3239 women, including 14 studies with an expectant management control group, incorporating 746 women. Overall survival after cervical emergency cerclage was 74%, with a fetal survival of 88% and neonatal survival of 90%. Singleton and twin pregnancies showed similar survival, with a pregnancy prolongation of 52 and 37 days and a gestational age at delivery of 30 and 28 weeks, respectively. Meta-regression analyses indicated a significant inverse association between mean gestational age at diagnosis and pregnancy prolongation and no association between dilatation or gestational age at diagnosis and gestational age at delivery. Compared with expectant management, emergency cerclage significantly increased overall survival by 43%, fetal survival by 17% and neonatal survival by 22%, along with a significant pregnancy prolongation of 37 days and reduction in delivery at <28 weeks of gestation of 55%. These effects were more profound in singleton pregnancies than in twin pregnancies. CONCLUSION This systematic review indicates that, in pregnancies threatened by extreme premature birth because of cervical insufficiency, emergency cerclage leads to significantly higher survival, accompanied by significant pregnancy prolongation and reduction in delivery at <28 weeks of gestation, compared with expectant management. The mean gestational age at delivery was 30 weeks, independent of dilatation or gestational age at diagnosis. Survival was similar for singleton and twin pregnancies, implying that emergency cerclage should be considered in both.
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Affiliation(s)
- Cecile C Hulshoff
- Departments of Obstetrics and Gynecology (Drs Hulshoff, Bosgraaf, Spaanderman, Scholten, and Drongelen).
| | - Remko P Bosgraaf
- Departments of Obstetrics and Gynecology (Drs Hulshoff, Bosgraaf, Spaanderman, Scholten, and Drongelen); Department of Obstetrics and Gynecology, Catharina Hospital, Eindhoven, The Netherlands (Dr Bosgraaf)
| | - Marc E A Spaanderman
- Departments of Obstetrics and Gynecology (Drs Hulshoff, Bosgraaf, Spaanderman, Scholten, and Drongelen); Department of Obstetrics and Gynecology, Maastricht University Medical Center, Maastricht, The Netherlands (Dr Spaanderman)
| | - Joanna Inthout
- Health Evidence (Dr Inthout), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ralph R Scholten
- Departments of Obstetrics and Gynecology (Drs Hulshoff, Bosgraaf, Spaanderman, Scholten, and Drongelen)
| | - Joris Van Drongelen
- Departments of Obstetrics and Gynecology (Drs Hulshoff, Bosgraaf, Spaanderman, Scholten, and Drongelen)
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Kosińska Kaczyńska K, Rebizant B, Bednarek K, Dabrowski FA, Kajdy A, Muzyka-Placzyńska K, Filipecka-Tyczka D, Uzar P, Kwiatkowski S, Torbe A, Grzesiak M, Kaczmarek P, Żyła M, Brawura-Biskupski-Samaha R. Emergency cerclage using double-level versus single-level suture in the management of cervical insufficiency (Cervical Occlusion double-level Stitch Application, COSA): study protocol for a multicentre, non-blinded, randomised controlled trial. BMJ Open 2023; 13:e071564. [PMID: 37286317 DOI: 10.1136/bmjopen-2023-071564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
INTRODUCTION Cervical insufficiency accounts for 15% of recurrent pregnancy losses between 16 and 28 weeks of gestation. The aim of the study is to verify the effectiveness of emergency double-level cerclage with vaginal progesterone in cervical insufficiency treatment in terms of the prevention of preterm delivery before 34 weeks of gestation. METHODS AND ANALYSIS This trial is a multicentre, non-blinded, randomised study with 1:1 allocation ratio. The study is conducted at tertiary perinatal care departments in Poland. It will include patients with cervical insufficiency with the fetal membranes visible in the open cervical canal or protruding into the vagina between 16+0 and 23+6 weeks of pregnancy. They will be randomised into two arms: emergency single-level cerclage with vaginal progesterone or double-level cerclage with vaginal progesterone. All will be administered antibiotics and indomethacin. The primary outcome is the rate of deliveries below 34+0 weeks of gestation, while secondary outcomes include gestational age at delivery, neonatal outcomes, maternal outcomes according to the Core Outcome Set for Evaluation of Interventions to Prevent Preterm Birth and cerclage procedure complications. The planned number of participants according to the power analysis is 78. ETHICS AND DISSEMINATION The study protocol was written in accordance with the Standard Protocol Items: Recommendations for Interventional Trials statement. It was created according to the requirements of the Declaration of Helsinki for Medical Research involving Human Subject. Ethical approval was obtained from the Ethics Committee of the Centre of Postgraduate Medical Education (no. 1/2022). The study protocol was approved and published by ClinicalTrials.gov (posted on 24 February 2022). All participants gave a written informed consent. After completion of the study its results will be published in a peer-reviewed English language journal. TRIAL REGISTRATION NCT05268640.
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Affiliation(s)
- Katarzyna Kosińska Kaczyńska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warszawa, Poland
| | - Beata Rebizant
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warszawa, Poland
| | - Katarzyna Bednarek
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warszawa, Poland
| | - Filip Andrzej Dabrowski
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warszawa, Poland
| | - Anna Kajdy
- 1st Department of Obstetrics and Gynecology, Center of Postgraduate Medical Educatiion, Warsaw, Poland
| | | | - Dagmara Filipecka-Tyczka
- 1st Department of Obstetrics and Gynecology, Center of Postgraduate Medical Educatiion, Warsaw, Poland
| | - Piotr Uzar
- Department of Obstetrics and Gynecology, Pomeranian Medical University Szczecin, Szczecin, Poland
| | - Sebastian Kwiatkowski
- Department Obstetrics and Gynecology, Pomorski Uniwersytet Medyczny w Szczecinie, Szczecin, Zachodniopomorskie, Poland
| | - Andrzej Torbe
- Department of Obstetrics and Gynecology, Pomeranian Medical University Szczecin, Szczecin, Poland
| | - Mariusz Grzesiak
- Department of Perinatology Obstetrics and Gynecology, Polish Mother's Memorial Hospital-Research Institute, Lodz, Poland
| | - Piotr Kaczmarek
- Department of Perinatology Obstetrics and Gynecology, Polish Mother's Memorial Hospital-Research Institute, Lodz, Poland
| | - Monika Żyła
- Department of Perinatology Obstetrics and Gynecology, Polish Mother's Memorial Hospital-Research Institute, Lodz, Poland
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Wei Y, Wang S. Comparison of emergency cervical cerclage and expectant treatment in cervical insufficiency in singleton pregnancy: A meta-analysis. PLoS One 2023; 18:e0278342. [PMID: 36827361 PMCID: PMC9956608 DOI: 10.1371/journal.pone.0278342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/14/2022] [Indexed: 02/26/2023] Open
Abstract
OBJECTIVE To compare the therapeutic effects of emergency cervical cerclage and expectant treatment in preterm birth due to cervical insufficiency in singleton pregnancy. METHODS A combination of subject words and free words was used to search major domestic and foreign databases. According to inclusion and exclusion criteria, 23 studies were included that met the criteria and quality evaluation and data extraction was carried out. The data were analyzed using STATA 15 and the reporting was done in reference to the list of Preferred Reporting Items for Systematic and Meta-Analyses. RESULTS Emergency cervical cerclage was superior to expectant treatment for the primary outcome of pregnancy prolongation (WMD = 5.752, 95% CI 5.194-6.311, 22 studies, N = 1435, I2 = 97.1%, P = 0.000). Cervical cerclage was also superior to expectant treatment for the secondary outcomes of neonatal birth weight (WMD = 1051.542, 95% CI 594.107-1508.977, 9 studies, N = 609, I2 = 96.4%, P = 0.000), neonatal Apgar 1' (WMD = 2.8720, 95% CI: 2.105-3.639, 11 studies, N = 716, I2 = 99.0%, P = 0.000), number of live births (OR = 6.018, 95% CI 2.882-12.568, 10 studies, N = 724, I2 = 55.3%, P = 0.000), deliveries after 32 weeks (OR = 8.030, 95% CI 1.38-46.892, 8 studies, N = 381, I2 = 85.9%, P = 0.021). deliveries after 34 weeks (OR = 15.91, 95% CI 5.92-42.77, 9 studies, N = 560, I2 = 59.6%, P = 0.000), number of vaginal deliveries (OR = 3.24, 95% CI 1.32-7.90, 8 studies, N = 502, I2 = 69.4%, P = 0.018), and number of neonatal survivals (OR = 9.300, 95% CI 3.472-24.910, 10 studies, N = 654, I2 = 80.5%, P = 0.000). No difference between emergency cervical cerclage and expectant treatment was found in patients with chorioamnionitis (OR = 1.85, 95% CI 0.602-4.583, 4 studies, N = 296, I2 = 16.3%, P = 0.273). CONCLUSION Before the 28th week of pregnancy, emergency cervical cerclage can significantly prolong the gestational week and improve the neonatal survival rate, compared to expectant treatment, in women with singleton pregnancies who have a dilated uterine orifice caused by cervical insufficiency.
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Affiliation(s)
- Yanfang Wei
- Department of Obstetrics, Guangxi International Zhuang Medical Hospital, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Sumei Wang
- Department of Obstetrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
- * E-mail:
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Jung EJ, Romero R, Gomez-Lopez N, Paredes C, Diaz-Primera R, Hernandez-Andrade E, Yeo L. Cervical insufficiency, amniotic fluid sludge, intra-amniotic infection, and maternal bacteremia: the need for a point-of-care test to assess inflammation and bacteria in amniotic fluid. J Matern Fetal Neonatal Med 2022; 35:4775-4781. [PMID: 33356687 PMCID: PMC10544760 DOI: 10.1080/14767058.2020.1863369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 12/27/2022]
Abstract
Acute cervical insufficiency is frequently associated with subclinical intra-amniotic inflammation and intra-amniotic infection. Amniotic fluid analysis has been recommended prior to the placement of a cervical cerclage given that preexisting infection is associated with adverse pregnancy outcome. We report a case for which commonly available laboratory tests-amniotic fluid Gram stain, white blood cell count, and glucose concentration-did not detect either intra-amniotic inflammation, diagnosed by elevated amniotic fluid interleukin-6, or intra-amniotic infection, diagnosed by cultivation. Following cerclage placement, the patient developed clinical chorioamnionitis and bacteremia and experienced a spontaneous mid-trimester pregnancy loss. This case illustrates the need for a rapid and sensitive point-of-care test capable of detecting infection or inflammation, given recent evidence in support of treatment of intra-amniotic infection and intra-amniotic inflammation with antimicrobial agents.
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Affiliation(s)
- Eun Jung Jung
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
- Detroit Medical Center, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Florida International University, Miami, Florida, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, Michigan USA
| | - Carmen Paredes
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Ramiro Diaz-Primera
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Edgar Hernandez-Andrade
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, McGovern Medical School, University of Texas, Health Science Center at Houston (UTHealth), Houston, Texas, USA
| | - Lami Yeo
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
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Sahin E, Madendag Y, Eraslan Sahin M, Col Madendag I, Kirlangic MM. New ultrasonographic midtrimester scoring method for predicting spontaneous preterm birth in uncomplicated asymptomatic twin pregnancies. J Perinat Med 2022; 50:567-572. [PMID: 35146974 DOI: 10.1515/jpm-2021-0419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 01/24/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The aim of the present study was to evaluate a new ultrasonographic scoring method that could predict spontaneous preterm birth (sPTB) in uncomplicated twin pregnancies during routine anomaly screening in the midtrimester. METHODS This prospective study included women with a monochorionic diamniotic (MCDA) or dichorionic diamniotic (DCDA) twin pregnancy gestational ages from 170/7 through 226/7. A new ultrasonographic score between 0 and 5 points was calculated using cervical length (CL), uterocervical angle (UCA), and cervical dilatation status during routine anomaly screening in the midtrimester. The primary outcome of the study was the prediction of sPTB < 32 and <34 gestational weeks. RESULTS A total of 118 pregnant women with twins were evaluated, 31 of whom delivered before 34 gestational weeks an 87 of whom delivered after 34 gestational weeks. The sensitivity and specificity values were separately calculated for scores of 3.5 and 2.5 for predicting sPTB < 32 gestational weeks. The cut-off value of 3.5 provided a sensitivity of 80% and a specificity of 82%. When the score was 2.5, the sensitivity and specificity were 86 and 71%, respectively. To determine a score for predicting sPTB < 34 gestational week cut-off value of 3.5 provided a sensitivity of 80% and a specificity of 90%. When the score value was 2.5, the sensitivity and specificity of the method were 83 and 81%, respectively. CONCLUSIONS Our results indicated that the midtrimester new scoring is a simple technique that can be easily used as an improved tool for predicting the risk of sPTB in women with a twin pregnancy.
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Affiliation(s)
- Erdem Sahin
- Department of Obstetrics and Gynecology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Yusuf Madendag
- Department of Obstetrics and Gynecology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | | | - Ilknur Col Madendag
- Department of Obstetrics and Gynecology, Kayseri City Hospital, Kayseri, Turkey
| | - Mehmet Mete Kirlangic
- Department of Obstetrics and Gynecology, Tuzla Government Hospital, Istanbul, Turkey
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Progesterone, cervical cerclage or cervical pessary to prevent preterm birth: a decision-making analysis of international guidelines. BMC Pregnancy Childbirth 2022; 22:355. [PMID: 35461218 PMCID: PMC9034550 DOI: 10.1186/s12884-022-04584-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 03/15/2022] [Indexed: 12/02/2022] Open
Abstract
Objective The aim of this study was to investigate guidelines on preterm birth, analyze decision-criteria, and to identify consensus and discrepancies among these guidelines. Design Objective consensus analysis of guidelines. Sample Ten international guidelines on preterm birth. Methods Relevant decision criteria were singleton vs. twin pregnancy, history, cervical length, and cervical surgery / trauma or Mullerian anomaly. Eight treatment recommendations were extracted. For each decision-making criteria the most commonly recommended treatment was identified, and the level of consensus was evaluated. Main outcome measures Consensus and Discrepancies among recommendations. Results In a case of singleton pregnancies with no history of preterm birth and shortened cervix, most guidelines recommend progesterone. In singleton pregnancies with a positive history and shortened cervix, all guidelines recommend a cerclage as an option, alternative or conjunct to progesterone. The majority of the guidelines advise against treatment in twin pregnancies. Conclusions A shortened cervix and a history of preterm birth are relevant in singleton pregnancies. In twins, most guidelines recommend no active treatment. Tweetable abstract Among international guidelines a shortened cervix and a history of preterm birth are relevant in singleton pregnancies. With no history of preterm birth and with a shortened cervix most guidelines recommend progesterone treatment.
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Kumari P, Kumar M, David LS, Vijayaselvi R, Yadav B, Beck MM. A retrospective study analyzing indications and outcomes of mid-trimester emergency cervical cerclage in a tertiary care perinatal centre over half a decade. Trop Doct 2022; 52:391-399. [PMID: 35361021 DOI: 10.1177/00494755221080590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We studied the indications, success rate, perinatal outcomes and maternal complications following mid-trimester emergency cervical cerclage. All women undergoing mid-trimester emergency cerclage at our centre during 2014-2019 were included in this retrospective study.There were 46 women in our cohort. Mean cervical length was 1.5 cm (SD ± 0.7), and 52.1% of them had bulging membranes. The mean gestational age at cerclage was 23.35 weeks (SD ± 3.341). Three were loss to follow up.Out of 43 pregnancies (23 singletons and 20 twins) analyzed, 37/43, 86.4% had livebirths. Success rate in the singletons and twins were 91.3% and 80% respectively. Maternal complications were seen in 56.5% of patients. Composite neonatal morbidity was significantly more in the twin group (p-value 0.04).Overall live birth rate was 86.4% with similar success rates in singleton and multiple pregnancies. Although, evidence for beneficial effect of prophylactic cerclage in multiple gestation is lacking, emergency cerclage may have a role in twin gestation.
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Affiliation(s)
- Pushplata Kumari
- Department of Obstetrics and Gynaecology, 30025Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Manish Kumar
- Department of Neonatology, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Liji Sarah David
- Department of Obstetrics and Gynaecology, 30025Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Reeta Vijayaselvi
- Department of Obstetrics and Gynaecology, 30025Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Bijesh Yadav
- Department of Biostatistics, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Manisha Madhai Beck
- Department of Obstetrics and Gynaecology, 30025Christian Medical College and Hospital, Vellore, Tamil Nadu, India
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Gómez-Castellano M, Sabonet-Morente L, González-Mesa E, Jiménez-López JS. A Three-Step Procedure for Emergency Cerclage: Gestational and Neonatal Outcomes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19052636. [PMID: 35270320 PMCID: PMC8909863 DOI: 10.3390/ijerph19052636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 02/01/2023]
Abstract
(1) Background: The objective of our prospective observational study was to evaluate a new technique for emergency cerclage, which was performed on a cohort of patients with cervical incompetence in the second trimester. (2) Methods: 26 pregnant women presented at 15 to 24 weeks of gestation with cervical dilatation and bursa prolapse. A new emergency cerclage was performed using a technique consisting of the first cerclage in a tobacco bag and a second occlusive cerclage located inferiorly to the first. The technique is concluded with the performance of a cervical cleisis when vaginal bag prolapse is present, and this overall procedure is called the three-step procedure for emergency cerclage (TSEC). (3) Results: To assess its effectiveness, we measured the latency from procedure to delivery, pregnancy duration, infant birth weight, and rate of premature amniorrhexis. The mean latency from procedure to delivery was 14 weeks + 6 days, the mean weight of newborns was 2550 g and the mean gestational age at delivery was 35 weeks. The neonatal survival rate was 95.8%. The rate of premature amniorrhexis (<34 weeks gestational age) was 8.3% (two cases) with successful perinatal outcomes. There were significant differences (p < 0.05) between groups. A multivariate regression model showed that the best variables for predicting the latency to delivery were the cervical dilatation at diagnosis, use of the three-step cerclage, cervical length after the procedure, and gestational age at diagnosis. (4) Conclusions: The excellent results obtained with the TSEC procedure in terms of the latency from the procedure to delivery, gestational age at delivery, birth weight, and having few reported complications highlight the importance of collecting new data on this promising novel procedure.
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Affiliation(s)
- Manuel Gómez-Castellano
- Obstetrics and Gynecology, Materno-Infantil Hospital Regional Universitary Málaga, Avd Arroyo de los Angeles S/N, 29011 Malaga, Spain; (M.G.-C.); (E.G.-M.); (J.S.J.-L.)
| | - Lorena Sabonet-Morente
- Obstetrics and Gynecology, Materno-Infantil Hospital Regional Universitary Málaga, Avd Arroyo de los Angeles S/N, 29011 Malaga, Spain; (M.G.-C.); (E.G.-M.); (J.S.J.-L.)
- Correspondence:
| | - Ernesto González-Mesa
- Obstetrics and Gynecology, Materno-Infantil Hospital Regional Universitary Málaga, Avd Arroyo de los Angeles S/N, 29011 Malaga, Spain; (M.G.-C.); (E.G.-M.); (J.S.J.-L.)
- Biochemistry and Immunology Department, Malaga Biomedical Research Institute—IBIMA, University of Málaga, Surgical Specialties, 29010 Malaga, Spain
| | - Jesús S. Jiménez-López
- Obstetrics and Gynecology, Materno-Infantil Hospital Regional Universitary Málaga, Avd Arroyo de los Angeles S/N, 29011 Malaga, Spain; (M.G.-C.); (E.G.-M.); (J.S.J.-L.)
- Biochemistry and Immunology Department, Malaga Biomedical Research Institute—IBIMA, University of Málaga, Surgical Specialties, 29010 Malaga, Spain
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The retrospective study for effectiveness of cervical cerclage in preventing recurrent preterm birth. Taiwan J Obstet Gynecol 2022; 61:63-69. [PMID: 35181048 DOI: 10.1016/j.tjog.2021.11.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE This study aimed to clarify the effectiveness of cervical cerclage in preventing recurrent preterm births. MATERIALS AND METHODS A retrospective study was conducted using the perinatal registration database of the Japan Society of Obstetrics and Gynecology for the Perinatal Center from 2014 to 2016. The efficacies of history-indicated, ultrasound-indicated, and physical examination-indicated cerclage as preventive treatments for women with a history of preterm birth were evaluated by comparing cerclage and non-cerclage cases. Fisher's exact test was performed to evaluate any significant differences in patient backgrounds. Prior to the evaluation, propensity score matching was performed for history-indicated and ultrasound-indicated cerclage patients. RESULTS For this study, 6060 multiparous women with a history of preterm birth were reviewed. After excluding 17 patients with unknown indications for cervical cerclage, 6043 patients were included in the study. History-indicated and ultrasound-indicated cerclage did not reduce the risk of preterm birth in subsequent pregnancies for any of the pregnancy periods (p = 0.413, p = 1.000). In contrast, physical examination-indicated cerclage significantly reduced the risk of subsequent preterm births for all pregnancy periods (p < 0.001). CONCLUSION Subsequent preterm births were effectively prevented only in physical examination-indicated cerclage cases. For history- or ultrasound-indicated cerclage, statistically significant differences in subsequent preterm births were not evident.
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Diago Muñoz DM, Martínez-Varea A, Roca Prats A, Alonso-Díaz R, Perales Marín A, Diago Almela VJ. Diagnosis of intraamniotic inflammation by measuring vaginal interleukin-6 in patients with cervical insufficiency: could amniocentesis be avoided? J Matern Fetal Neonatal Med 2022; 35:9303-9307. [DOI: 10.1080/14767058.2022.2029838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Diana María Diago Muñoz
- Departament of Obstetrics and Gynecology, Hospital General Universitario Santa Lucía, Cartagena, Spain
| | - Alicia Martínez-Varea
- Departament of Obstetrics and Gynecology, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Alba Roca Prats
- Departament of Obstetrics and Gynecology, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Ricardo Alonso-Díaz
- Departament of Clnical Laboratory, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Alfredo Perales Marín
- Departament of Obstetrics and Gynecology, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Vicente José Diago Almela
- Departament of Obstetrics and Gynecology, Hospital Universitario y Politécnico La Fe, Valencia, Spain
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Leanza V, D'Urso V, Gulisano M, Incognito GG, Palumbo M. Bulging of both membranes and fetal lower limbs: conservative management. Minerva Obstet Gynecol 2021; 73:654-658. [PMID: 33904690 DOI: 10.23736/s2724-606x.21.04785-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cervical incompetence is the inability of the cervix to retain fetus, in the absence of clinical symptoms or signs of labor, owing to a functional or structural defect and it is a known cause of abortion and preterm delivery. A widely used therapeutic option is cervical cerclage, which is performed electively at the beginning of the second trimester in high-risk pregnant human. Moreover, cervical cerclage is also performed as an emergency procedure. We reported a case of a pregnant women, who was hospitalized with incompetent cervix and bulging of both membranes and fetal lower limbs at 22 weeks of amenorrhea. She refused emergency cervical cerclage and chose conservative managing, tackling the risk of preterm labor. Although the medical team did not recommend the choice of the patient, bed rest with medical therapy allowed the delivery at term (39 weeks) through cesarean section. A female newborn weighing 3.590 gr was extracted in good health.
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Affiliation(s)
- Vito Leanza
- S. Marco University Hospital, University of Catania, Catania, Italy
| | - Valentina D'Urso
- S. Marco University Hospital, University of Catania, Catania, Italy
| | - Marianna Gulisano
- S. Marco University Hospital, University of Catania, Catania, Italy -
| | | | - Marco Palumbo
- S. Marco University Hospital, University of Catania, Catania, Italy
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15
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Emergency Cervical Cerclage. J Clin Med 2021; 10:jcm10061270. [PMID: 33803886 PMCID: PMC8003203 DOI: 10.3390/jcm10061270] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/04/2021] [Accepted: 03/16/2021] [Indexed: 12/19/2022] Open
Abstract
Despite the progress of medicine in the last decades, recurrent pregnancy loss, premature birth, and related complications are still a vast problem. The reasons for recurrent pregnancy loss and preterm delivery are diverse and multifactorial. One of the main reasons for these complications is cervical insufficiency, which means that the cervix is weak and unable to remain closed until the date of delivery. It manifests as painless softening and shortening of the cervix without contractions. The aim of the study was to review the available literature on rescue sutures, which are an emergency treatment in pregnancies with premature cervical dilatation and protrusion of the fetal membranes in the second trimester of pregnancy. This review confirms that emergency cerclage reduces the rate of preterm birth in patients with advanced cervical insufficiency. This procedure prolongs gestational age and improves the chances of survival of the newborn without increasing the risk of chorioamnionitis and preterm premature rupture of membranes.
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16
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Wei M, Yang Y, Jin X, Yang J, Huang D, Zhang S. A comparison of pregnancy outcome of emergency modified transvaginal cervicoisthmic cerclage performed in twin and singleton pregnancies. Arch Gynecol Obstet 2021; 303:1197-1205. [PMID: 33386955 DOI: 10.1007/s00404-020-05852-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 10/17/2020] [Indexed: 11/26/2022]
Abstract
PURPOSE To compare the pregnancy outcome of emergency cerclage performed in twin and singleton pregnancies. METHODS A retrospective trial was carried out in the Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital in Zhejiang, China, from January 2013 to December 2018. A total of 89 women with acute cervical incompetence underwent the emergency cerclage. Main outcome measures were gestational age at delivery and the fetal outcome. RESULTS There were 31 twin and 58 singleton pregnancies that underwent emergency cerclage. In singleton pregnancies, gestational age at delivery (31.57 ± 6.11 vs 28.81 ± 4.34, p = 0.016), and prolongation of pregnancy (8.69 ± 6.13 vs 5.41 ± 3.72, p < 0.001) were greater, and the preterm delivery rate before 34 weeks was lower (53.4% vs 80.6%, p = 0.011) compared with twin pregnancies. Fetal weight was greater in singletons than in twins (2377.3 ± 862.1 vs 1630.3 ± 557.6, p < 0.001), but the fetal survival rate was similar. The proportion of twin gestations was significantly higher in the group with preterm delivery before 34 weeks (44.6% vs 18.2%, p = 0.011) and the proportion of previous term delivery was higher in the group with delivery at or after 34 weeks (30.3% vs 12.5%, p = 0.039). The group with preterm delivery before 34 weeks had a significantly larger size of visible membranes at cerclage than the group with delivery at or after 34 weeks (2.23 ± 0.86 vs 1.64 ± 0.80, p = 0.001). In binary logistic regression analysis, twin gestations and a larger size of visible membranes were associated with an increased risk of preterm delivery. CONCLUSION The pregnancy outcome of emergency cerclage appears to have a better prognosis in singleton pregnancies than in twin pregnancies, and twin pregnancy is a risk factor for preterm delivery.
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Affiliation(s)
- Minling Wei
- Center of Reproductive Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
| | - Yang Yang
- Center of Reproductive Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
| | - Xiaoying Jin
- Center of Reproductive Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
| | - Jingyan Yang
- Center of Reproductive Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
| | - Dong Huang
- Center of Reproductive Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China
| | - Songying Zhang
- Center of Reproductive Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China.
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, 3# Qingchun East Road, Hangzhou, 310016, People's Republic of China.
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Chalupska M, Kacerovsky M, Stranik J, Gregor M, Maly J, Jacobsson B, Musilova I. Intra-Amniotic Infection and Sterile Intra-Amniotic Inflammation in Cervical Insufficiency with Prolapsed Fetal Membranes: Clinical Implications. Fetal Diagn Ther 2020; 48:58-69. [PMID: 33291113 DOI: 10.1159/000512102] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 10/05/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION The aim of this study was to identify the rates of 2 phenotypes of intra-amniotic inflammation: intra-amniotic infection (with microbial invasion of the amniotic cavity [MIAC]) and sterile intra-amniotic inflammation (without MIAC), and their outcomes, among women with cervical insufficiency with prolapsed fetal membranes. METHODS OF STUDY This is a retrospective study of women admitted to the Department of Obstetrics and Gynecology, University Hospital Hradec Kralove between January 2014 and May 2020. Transabdominal amniocentesis to evaluate intra-amniotic inflammation (amniotic fluid interleukin-6) and MIAC (culturing and molecular biology methods) was performed as part of standard clinical management. RESULTS In total, 37 women with cervical insufficiency and prolapsed fetal membranes were included; 11% (4/37) and 43% (16/37) of them had intra-amniotic infection and sterile intra-amniotic inflammation, respectively. In women with intra-amniotic infection and sterile intra-amniotic inflammation, we noted shorter intervals between admission and delivery (both p < 0.0001), and lower gestational age at delivery (p < 0.0001 and p = 0.004) and percentiles of birth/abortion weight (p = 0.03 and p = 0.009, respectively) than in those without intra-amniotic inflammation. CONCLUSIONS Both phenotypes of intra-amniotic inflammation, with sterile intra-amniotic inflammation being more frequent, are associated with worse outcomes in pregnancies with cervical insufficiency with prolapsed fetal membranes.
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Affiliation(s)
- Martina Chalupska
- Department of Obstetrics and Gynecology, University Hospital Hradec Kralove, Hradec Kralove, Czechia
| | - Marian Kacerovsky
- Department of Obstetrics and Gynecology, University Hospital Hradec Kralove, Hradec Kralove, Czechia, .,Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czechia,
| | - Jaroslav Stranik
- Department of Obstetrics and Gynecology, University Hospital Hradec Kralove, Hradec Kralove, Czechia
| | - Miroslav Gregor
- Department of Obstetrics and Gynecology, University Hospital Hradec Kralove, Hradec Kralove, Czechia
| | - Jan Maly
- Department of Pediatrics, University Hospital Hradec Kralove, Hradec Kralove, Czechia
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Institute of Clinical Science, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Region Västra Götaland, Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden.,Department of Genetics and Bioinformatics, Domain of Health Data and Digitalisation, Institute of Public Health, Oslo, Norway
| | - Ivana Musilova
- Department of Obstetrics and Gynecology, University Hospital Hradec Kralove, Hradec Kralove, Czechia
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18
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Roman A, Zork N, Haeri S, Schoen CN, Saccone G, Colihan S, Zelig C, Gimovsky AC, Seligman NS, Zullo F, Berghella V. Physical examination-indicated cerclage in twin pregnancy: a randomized controlled trial. Am J Obstet Gynecol 2020; 223:902.e1-902.e11. [PMID: 32592693 DOI: 10.1016/j.ajog.2020.06.047] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 05/19/2020] [Accepted: 06/22/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Women with twin pregnancies and a dilated cervix in the second trimester are at increased risk of pregnancy loss and early preterm birth; there is currently no proven therapy to prevent preterm birth in this group of women. OBJECTIVE This study aimed to determine whether physical examination-indicated cerclage reduces the incidence of preterm birth in women with a diagnosis of twin pregnancies and asymptomatic cervical dilation before 24 weeks of gestation. STUDY DESIGN Multicenter, parallel group, open-label, randomized controlled trial of women with twin pregnancies and asymptomatic cervical dilation of 1 to 5 cm between 16 weeks 0/7 days of gestation and 23 weeks 6/7 days of gestation were enrolled from July 2015 to July 2019 in 8 centers. Eligible women were randomized in a 1:1 ratio into either cerclage or no cerclage groups. We excluded women with monochorionic-monoamniotic twin pregnancy, selective fetal growth restriction, twin-twin transfusion syndrome, major fetal malformation, known genetic anomaly, placenta previa, signs of labor, or clinical chorioamnionitis. The primary outcome was the incidence of preterm birth at <34 weeks of gestation. Secondary outcomes were preterm births at <32, <28, and <24 weeks of gestation, interval from diagnosis to delivery, and perinatal mortality. Data were analyzed by intention-to-treat methods. RESULTS After an interim analysis was performed, the Data and Safety Monitoring Board recommended stopping the trial because of a significant decrease in perinatal mortality in the cerclage group. We randomized 34 women, with 4 women being excluded because of expired informed consent. A total of 17 women were randomized to physical examination-indicated cerclage and 13 women to no cerclage. Whereas 4 women randomized to cerclage did not receive the surgical procedure, no women in the no cerclage group received cerclage. Maternal demographics were not significantly different. All women in the cerclage group also received indomethacin and antibiotics. When comparing the cerclage group vs the no cerclage group, the incidence of preterm birth was significantly decreased as follows: preterm birth at <34 weeks of gestation, 12 of 17 women (70%) vs 13 of 13 women (100%) (risk ratio, 0.71; 95% confidence interval, 0.52-0.96); preterm birth at <32 weeks of gestation, 11 of 17 women (64.7%) vs 13 of 13 women (100%) (risk ratio, 0.65; 95% confidence interval, 0.46-0.92); preterm birth at <28 weeks of gestation, 7 of 17 women (41%) vs 11 of 13 women (84%) (risk ratio, 0.49; 95% confidence interval, 0.26-0.89); and preterm birth at <24 weeks of gestation, 5 of 17 women (30%) vs 11 of 13 women (84%) (risk ratio, 0.35; 95% confidence interval, 0.16-0.75). The mean gestational age at delivery was 29.05±1.7 vs 22.5±3.9 weeks (P<.01), respectively; the mean interval from diagnosis of cervical dilation to delivery was 8.3±5.8 vs 2.9±3.0 weeks (P=.02), respectively. Perinatal mortality was also significantly reduced in the cerclage group compared with the no cerclage group as follows: 6 of 34 women (17.6%) vs 20 of 26 women (77%) (risk ratio, 0.22; 95% confidence interval, 0.1-0.5), respectively. CONCLUSION In women with twin pregnancies and asymptomatic cervical dilation before 24 weeks of gestation, a combination of physical examination-indicated cerclage, indomethacin, and antibiotics significantly decreased preterm birth at all evaluated gestational ages. Most importantly, cerclage in this population was associated with a 50% decrease in early preterm birth at <28 weeks of gestation and with a 78% decrease in perinatal mortality.
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Affiliation(s)
- Amanda Roman
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA.
| | - Noelia Zork
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Columbia University, New York, NY
| | - Sina Haeri
- Division of Maternal-Fetal Medicine, Obstetrics and Gynecology Department, St David's Women's Center of Texas, Austin, TX
| | - Corina N Schoen
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Massachusetts Medical School-Baystate, Springfield, MA
| | - Gabriele Saccone
- Department of Neuroscience, Reproductive Sciences, and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Sarah Colihan
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Albany Medical Center, Albany, NY
| | - Craig Zelig
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Albany Medical Center, Albany, NY
| | - Alexis C Gimovsky
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, the George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Neil S Seligman
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY
| | - Fulvio Zullo
- Department of Neuroscience, Reproductive Sciences, and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Vincenzo Berghella
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
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Park JY, Oh KJ, Lee S, Kim NK, Lee YE, Park YH, Hong JS. A new quantification system for assessing the degree of acute cervical insufficiency based on physical and sonographic examination. Eur J Obstet Gynecol Reprod Biol 2020; 256:372-378. [PMID: 33278713 DOI: 10.1016/j.ejogrb.2020.11.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 11/06/2020] [Accepted: 11/12/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Acute cervical insufficiency accounts for 10-25 % of all mid-trimester pregnancy losses. However, the definition and description for the degree of acute cervical insufficiency were obscure and different among the many studies. The aim of this study was to suggest a new 4-digit quantification system and to evaluate the outcome according to the new system in women with acute cervical insufficiency. STUDY DESIGN A retrospective cohort study was conducted in patients with acute cervical insufficiency who underwent physical examination indicated cervical cerclage. Acute cervical insufficiency was defined as painless external os dilation with prolapsed and/or visible membranes on speculum examination. The status of fetal membranes was described using two values: 1) size of the prolapsed membrane (P, measured using ultrasound); and 2) size of visible fetal membranes (M, evaluated by speculum examination). The status of cervix was described using two values: 1) dilatation of the narrowest os (O, measured by ultrasound); and 2) functional cervical length (C, measured by ultrasound). The patients were divided into 3 groups as follows: Stage I, patients with visible fetal membranes (M > 0) but with a remaining functional cervix (C > 0) (N = 7); stage II, those with visible fetal membranes (M > 0) and a functional cervical length of 0 but without prolapsed membranes (P = 0) (N = 33); and stage III, those with prolapsed membranes (P > 0) (N = 40). RESULTS 1) Patients who delivered before 34 weeks of gestation had a significantly lower median gestational age at cerclage operation and a significantly higher median P, M, C values than those who delivered at or beyond 34 weeks of gestation(P < 0.01 for gestational age at operation, P and M values; P < 0.05 for C value); 2) The higher the stage based on PMOC quantification system, the greater the risk of preterm delivery before <24, <32, <34, and <37 weeks of gestation (P < 0.001 for all); 3) The neonatal survival rate was 100 % (7/7) for stage I, 93.9 % (31/33) for stage II, and 60 % (24/40) for stage III. CONCLUSION The PMOC system was a simple method to describe the individualized conditions and to predict the risk of preterm births in all spectrums of acute cervical insufficiency.
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Affiliation(s)
- Jee Yoon Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Kyung Joon Oh
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea.
| | - Sukjeong Lee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Nam-Kyeong Kim
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Young-Eun Lee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Ye Hyon Park
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Joon-Seok Hong
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea
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Chatzakis C, Efthymiou A, Sotiriadis A, Makrydimas G. Emergency cerclage in singleton pregnancies with painless cervical dilatation: A meta-analysis. Acta Obstet Gynecol Scand 2020; 99:1444-1457. [PMID: 32757297 DOI: 10.1111/aogs.13968] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Emergency cerclage is the most common active intervention in pregnant women with cervical insufficiency. This meta-analysis aimed to compare the effectiveness of emergency cerclage vs expectant management on maternal and perinatal outcomes, and to assess the current status of evidence. MATERIAL AND METHODS A search was conducted from 1 June 2019 until 1 September 2019 and eligible studies were identified in the MEDLINE, Scopus, Cochrane and US clinical trials registry without limitations concerning the publication dates and languages. Randomized controlled trials (RCTs), non-RCTs and observational studies comparing emergency cerclage with no cerclage/expectant management, in women presenting with painless cervical dilatation were included. RESULTS The electronic search yielded 3607 potential studies, of which 38 were fully reviewed and 12 observational studies (1021 participants) were included. Cerclage was superior to expectant management for the primary outcomes of preterm birth before 28 and 32 gestational weeks, OR 0.25 (95% CI 0.16-0.39, five studies, N = 392, I2 = 41%, low quality) and 0.08 (95% CI 0.02-0.29, four studies, N = 176, I2 = 51%, low quality), respectively. Cerclage was also superior to expectant management for the secondary outcomes of fetal loss OR 0.26 (95% CI 0.12-0.56, 8 studies, N = 455, I2 = 46%, very low-quality), pregnancy prolongation in days mean difference 47.45 (95% CI 39.89-55.0, 12 studies, N = 1027 I2 = 86%, very low quality), gestational age at birth in weeks mean difference 5.68 (95% CI 4.69-6.67, 9 studies, N = 892, I2 = 73%, very low quality), admission to neonatal intensive care OR 0.21 (95% CI 0.07-0.70, two studies, N = 79, I2 = 36%, very low quality) and neonatal death OR 0.12 (95% CI 0.04-0.34, five studies, N = 130, I2 = 0%, very low quality). There were no differences between cerclage and expectant management concerning premature rupture of membranes during or after the procedure OR 0.68 (95% CI 0.31-1.48, two studies, N = 155, I2 = 85%, very low quality) and chorioamnionitis OR 1.14 (95% CI 0.31-4.25, three studies, N = 88, I2 = 33%, very low quality). CONCLUSIONS Emergency cerclage in pregnant women with painless cervical dilatation seems to decrease preterm births, prolong the pregnancy, and decrease the neonatal deaths and fetal losses, but does not increase the risk of chorioamnionitis and premature rupture of membranes. Despite the extremely favorable estimates for cerclage, the results should be viewed with caution because, as a result of the lack of randomized control trials, the quality of evidence is low to very low.
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Affiliation(s)
- Christos Chatzakis
- 2nd Department of Obstetrics and Gynecology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athina Efthymiou
- Department of Obstetrics and Gynecology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Alexandros Sotiriadis
- 2nd Department of Obstetrics and Gynecology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - George Makrydimas
- Department of Obstetrics and Gynecology, School of Medicine, University of Ioannina, Ioannina, Greece
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Pan M, Zhang J, Zhan W, Ouyang X, Jiang X, Yang D. Physical examination-indicated cerclage in twin pregnancy: a retrospective cohort study. Arch Gynecol Obstet 2020; 303:665-676. [PMID: 32886234 DOI: 10.1007/s00404-020-05777-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE This study aimed to evaluate the efficacy of physical examination-indicated cerclage in twin pregnancies and compare it with those that received conservative management. METHODS We used a retrospective cohort study design of asymptomatic twin pregnancies identified with physical examination indications at 14-26 weeks from 2015 through 2019 at Fujian Maternity and Child Health Hospital. The primary outcomes were gestational age (GA) at delivery and the incidence of spontaneous preterm birth (SPTB) at < 34 weeks, < 32 weeks, < 28 weeks, and < 24 weeks. The main secondary outcomes were latency period from diagnosis to delivery, composite neonatal adverse outcome and neonatal survival at discharge. RESULTS Thirty-one women with twin pregnancies were managed with physical examination-indicated cerclage, and another 31 received expectant management. The demographic characteristics of the two groups were not significantly different. GA at delivery was significantly later in the cerclage group than in the controls: 32.53 ± 4.78 vs. 27.53 ± 4.15 weeks, with a mean difference of 5.00 weeks [95% confidence interval (CI), 2.73-7.28]. There were significant decreases in the incidence of spontaneous preterm birth (SPTB) at < 34 weeks, < 32 weeks, < 28 weeks, and < 24 weeks in the cerclage group. The interval from diagnosis to delivery was increased with cerclage by a mean difference of 4.37 weeks (95% CI, 1.96-7.06). Regarding neonatal outcome, the perinatal mortality rate in the cerclage group was significantly reduced compared to that in the control group [8/62 (12.9%) vs. 26/62 (41.9%); P < 0001]. Likewise, the neonatal intensive care unit (NICU) admissions, length of stay in the NICU, and composite adverse neonatal outcome in the cerclage group were significantly reduced. CONCLUSION Physical examination-indicated cerclage was associated with significantly later GA at delivery, longer latency period from diagnosis to delivery, decreased incidence of SPTB at any given GA, and improved perinatal outcome compared with the corresponding measures in controls treated conservatively.
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Affiliation(s)
- Mian Pan
- Department of Obstetrics and Gynecology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350108, Fujian, China
| | - Jun Zhang
- Department of Obstetrics and Gynecology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350108, Fujian, China.
| | - Wenqiang Zhan
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Xia Ouyang
- Department of Neonatology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350108, Fujian, China
| | - Xiaoxiang Jiang
- Department of Obstetrics and Gynecology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350108, Fujian, China
| | - Danlin Yang
- Department of Obstetrics and Gynecology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350108, Fujian, China
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Pandey D, Pruthi Tandon N. Rescue Cervical Cerclage : Prevention of a Previable Birth. Cureus 2020; 12:e6994. [PMID: 32206458 PMCID: PMC7079765 DOI: 10.7759/cureus.6994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 02/13/2020] [Indexed: 11/11/2022] Open
Abstract
Rescue cervical cerclage can effectively prolong a nonviable gestation to viability, if done correctly in chosen patients after appropriate counseling. Here, we present a case study of an antenatal woman with advanced cervical changes at 24 weeks who benefited from the rescue cervical cerclage procedure to have a successful pregnancy outcome.
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Affiliation(s)
- Divya Pandey
- Obstetrics & Gynaecology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, IND
| | - Neha Pruthi Tandon
- Obstetrics & Gynaecology, Post Graduate Institute of Medical Education and Research, Dr. Ram Manohar Lohia Hospital, New Delhi, IND
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Lv M, Zhao B, Chen Y, Xi F, Zhan Q, Wang Y, Pu Y, Luo Q. Balloon tamponade for successful emergency cervical cerclage. J Obstet Gynaecol Res 2020; 46:418-424. [PMID: 31922306 DOI: 10.1111/jog.14186] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 12/08/2019] [Indexed: 11/30/2022]
Abstract
AIM To illustrate the method of emergency cerclage with the balloon tamponade and demonstrate the efficacy of this surgery method. METHODS Procedures of the balloon tamponade assisted emergency cerclage were reviewed in detail and outcomes of 39 patients treated with this way were evaluated. RESULTS From 2017 to 2019, emergency cerclage was successfully performed in 39 patients with a dilated cervix and bulging fetal membranes, assisted by the balloon tamponade. The diameter of the bulging prolapsed membranes ranged from 0.0-10.0 cm, with a median of 2.0 cm. Prolongation of the pregnancy period was from 8 to 138 days, with a median of 29 days. No maternal complications including infections, cervical laceration and cervical bleeding were observed perioperative period. CONCLUSION Emergency cerclage is an effective way to prolong gestational period in patients with advanced cervical dilatation and bulging membranes. The balloon tamponade assisted emergency cerclage makes the replacement of fetal membranes back into the uterine cavity easier and effectively, then a successful and convenient emergency cerclage can be performed.
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Affiliation(s)
- Min Lv
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
| | - Baihui Zhao
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
| | - Yuan Chen
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
| | - Fangfang Xi
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
| | - Qitao Zhan
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
| | - Yayun Wang
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
| | - Yuqun Pu
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
| | - Qiong Luo
- Key laboratory of Reproductive Genetics (Ministry of Education) and Department of Obstetrics, Women's Hospital, Zhejiang University, School of Medicine, Hangzhou, China
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Suff N, Hall M, Shennan A, Chandiramani M. The use of quantitative fetal fibronectin for the prediction of preterm birth in women with exposed fetal membranes undergoing emergency cervical cerclage. Eur J Obstet Gynecol Reprod Biol 2019; 246:19-22. [PMID: 31923878 DOI: 10.1016/j.ejogrb.2019.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 12/22/2019] [Indexed: 01/27/2023]
Abstract
OBJECTIVE Emergency cervical cerclage is often considered a controversial salvage measure for those pregnancies at high risk of mid-trimester loss or early preterm birth. To determine the efficacy and benefit of emergency cerclage insertion, we assessed the predictive value of quantitative fetal fibronectin (fFN) concentration in cervicovaginal fluid for spontaneous preterm birth in women with exposed fetal membranes prior to cerclage insertion. STUDY DESIGN This was a retrospective observational study from St Thomas' Hospital, London of a cohort of women with singleton pregnancy and exposed fetal membranes presenting between 18 and 23+6 weeks of gestation (n = 35), in the period 2015-2018. fFN concentrations in cervicovaginal fluid were measured quantitatively at presentation in all women within 24 h prior to cerclage insertion. RESULTS 35 eligible women with exposed fetal membranes who underwent an emergency cervical cerclage were identified. The median gestational age was 20 + 0 weeks (18 + 6-21 + 2) at presentation and 29 + 3 weeks (23 + 3-38 + 2) at delivery, with a median time from emergency cerclage to delivery of 65.5 days (17-126.5). In total, 12 women (34 %) delivered within 28 days of emergency cerclage insertion. 60 % of women with an fFN level above 500 ng/mL delivered within 28 days of cerclage insertion, and they all delivered before 37 weeks gestation. No women with fFN levels below 10 ng/mL delivered within 28 days and 75 % of these women delivered at term. Concentration of quantitative fFN at presentation correlated negatively with time to delivery (Spearman's rs = -0.52, p = 0.0016). Mann-Whitney U analysis demonstrated a significant difference in the distribution of qfFN concentrations in women who delivered preterm compared to those who did not, both within 28 days from testing (p = 0.0048) and <37 weeks (p = 0.006). CONCLUSION Quantitative fFN has a role in predicting spontaneous preterm birth even in women with exposed fetal membranes undergoing emergency cervical cerclage. Given the serious risks associated with cervical cerclage surgery, qfFN could be used to counsel these patients at high risk of preterm delivery, as well as assisting in the decision to insert a cerclage.
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Affiliation(s)
- Natalie Suff
- Department of Women and Children's Health, King's College London, St Thomas' Hospital, London, SE1 7EH, United Kingdom.
| | - Megan Hall
- Department of Women and Children's Health, King's College London, St Thomas' Hospital, London, SE1 7EH, United Kingdom; Department of Obstetrics and Gynaecology, Whipps Cross University Hospital, London, United Kingdom
| | - Andrew Shennan
- Department of Women and Children's Health, King's College London, St Thomas' Hospital, London, SE1 7EH, United Kingdom
| | - Manju Chandiramani
- Department of Women and Children's Health, King's College London, St Thomas' Hospital, London, SE1 7EH, United Kingdom
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Kawamura H, Hayashi S, Takaoka S, Mabuchi A, Yamamoto R, Ishii K, Mitsuda N. Influence of preoperative light vaginal bleeding for perinatal adverse outcomes on physical examination-indicated cerclage. J Matern Fetal Neonatal Med 2019; 34:2047-2052. [PMID: 31409161 DOI: 10.1080/14767058.2019.1656192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE To clarify the relationship between light vaginal bleeding (LVB) before physical examination-indicated cerclage (PEIC) and perinatal adverse outcomes. METHODS This was a retrospective cohort study involving 94 singleton pregnancies undergoing PEIC <26 weeks of gestation at a single perinatal medical center between 2008 and 2015. The primary outcome was set as spontaneous preterm birth (sPTB) <34 weeks of gestation. The secondary outcomes were set as the second-trimester loss prior to 22 weeks of gestation, sPTB before 28 weeks of gestation, sPTB before 37 weeks of gestation, and stillbirth or neonatal death. Relationships between LVB and adverse outcomes were evaluated using logistic regression analysis. RESULTS Preoperative LVB was detected in 16 cases (17.0%). Multivariate logistic regression analyses revealed that preoperative LVB was an independent risk factor for sPTB <34 weeks of gestation (adjusted odds ratio [aOR]: 8.42; 95% confidence interval [CI]: 1.72-41.1; p < .01), sPTB <28 weeks of gestation (aOR: 5.98; 95% CI: 1.67-21.4; p < .01) and perinatal death (aOR: 8.47; 95% CI: 1.11-64.5; p = .04). CONCLUSIONS Vaginal bleeding prior to PEIC, even nonsignificant or self-limiting, is associated with sPTB before 28 or 34 weeks of gestation and perinatal death.
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Affiliation(s)
- Hiroshi Kawamura
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Shusaku Hayashi
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Sachi Takaoka
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Aki Mabuchi
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Ryo Yamamoto
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Keisuke Ishii
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Nobuaki Mitsuda
- Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
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Mönckeberg M, Valdés R, Kusanovic JP, Schepeler M, Nien JK, Pertossi E, Silva P, Silva K, Venegas P, Guajardo U, Romero R, Illanes SE. Patients with acute cervical insufficiency without intra-amniotic infection/inflammation treated with cerclage have a good prognosis. J Perinat Med 2019; 47:500-509. [PMID: 30849048 PMCID: PMC6606339 DOI: 10.1515/jpm-2018-0388] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 12/16/2018] [Indexed: 01/30/2023]
Abstract
Background The frequency of intra-amniotic infection/inflammation (IAI/I) in patients with midtrimester cervical insufficiency is up to 50%. Our purpose was to determine the perinatal outcomes of cervical cerclage in patients with acute cervical insufficiency with bulging membranes, and to compare the admission-to-delivery interval and pregnancy outcomes according to the results of amniotic fluid (AF) analysis and cerclage placement. Methods This was a retrospective cohort study including singleton pregnancies with cervical insufficiency between 15 and 26.9 weeks in two tertiary health centers. IAI/I was defined when at least one of the following criteria was present in AF: (a) a white blood cell (WBC) count >50 cells/mm3; (b) glucose concentration <14 mg/dL; and/or (c) a Gram stain positive for bacteria. Three different groups were compared: (1) absence of IAI/I with placement of a cerclage; (2) amniocentesis not performed with placement of a cerclage; and (3) IAI/I with or without a cerclage. Results Seventy patients underwent an amniocentesis to rule out IAI/I. The prevalence of IAI/I was 19%. Forty-seven patients underwent a cerclage. Patients with a cerclage had a longer median admission-to-delivery interval (33 vs. 2 days; P < 0.001) and delivered at a higher median gestational age (27.4 vs. 22.6 weeks; P = 0.001) than those without a cerclage. The neonatal survival rate in the cerclage group was 62% vs. 23% in those without a cerclage (P = 0.01). Patients without IAI/I who underwent a cerclage had a longer median admission-to-delivery interval (43 vs. 1 day; P < 0.001), delivered at a higher median gestational age (28 vs. 22.1 weeks; P = 0.001) and had a higher neonatal survival rate (67% vs. 8%; P < 0.001) than those with IAI/I. Conclusion The pregnancy outcomes of patients with midtrimester cervical insufficiency and bulging membranes are poor as they have a high prevalence of IAI/I. Therefore, a pre-operative amniocentesis is key to identify the best candidates for the subsequent placement of a cerclage.
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Affiliation(s)
- Max Mönckeberg
- Department of Obstetrics and Gynecology, Faculty of Medicine, Universidad de los Andes, Santiago, Chile,Department of Public Health and Epidemiology, Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - Rafael Valdés
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Hospital Sótero del Río, Santiago, Chile
| | - Juan P. Kusanovic
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Hospital Sótero del Río, Santiago, Chile,Division of Obstetrics and Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile,Perinatology Research Branch, NICHD/NIH/DHHS, Bethesda, MD and Detroit, MI, USA
| | - Manuel Schepeler
- Department of Obstetrics and Gynecology, Clínica Dávila, Santiago, Chile
| | - Jyh K. Nien
- Department of Obstetrics and Gynecology, Clínica Dávila, Santiago, Chile
| | - Emiliano Pertossi
- Division of Obstetrics and Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Silva
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Hospital Sótero del Río, Santiago, Chile,Division of Obstetrics and Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Karla Silva
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Hospital Sótero del Río, Santiago, Chile
| | - Pía Venegas
- Department of Obstetrics and Gynecology, Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - Ulises Guajardo
- Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - Roberto Romero
- Perinatology Research Branch, NICHD/NIH/DHHS, Bethesda, MD and Detroit, MI, USA,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Sebastián E. Illanes
- Department of Obstetrics and Gynecology, Faculty of Medicine, Universidad de los Andes, Santiago, Chile,Department of Obstetrics and Gynecology, Clínica Dávila, Santiago, Chile
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Costa MMF, Amorim Filho AGD, Barros MFD, Rodrigues AS, Zugaib M, Francisco RPV, Carvalho MHBD. Emergency cerclage: gestational and neonatal outcomes. ACTA ACUST UNITED AC 2019; 65:598-602. [PMID: 31166434 DOI: 10.1590/1806-9282.65.5.598] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/03/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND The gestational and neonatal outcomes of women with early cervical dilatation undergoing emergency cerclage were evaluated and compared with women treated with expectant management and bed rest. METHODS Retrospective analysis of pregnant women admitted between 2001 and 2017 with a diagnosis of early cervical dilatation and/or bulging membranes. Patients with a singleton pregnancy of a fetus without malformations, between 16 and 25 weeks and 6 days, with cervical dilatation of 1 to 3 cm were included; patients who delivered or miscarried within 2 days after admission were excluded. RESULTS The study enrolled 30 patients: 19 in the cerclage group and 11 in the rest group. There was a significant difference, with the cerclage group showing better results concerning gestational age at delivery (28.7 vs. 23.3 weeks; p=0.031) and latency between hospital admission and delivery (48.6 vs. 16 days; p=0.016). The fetal death rate was lower in the cerclage group (5.3% vs. 54.5%, p=0.004). Considering gestational age at delivery of live newborns, no difference was observed between the cerclage and rest groups (29.13 vs. 27.4 weeks; p=0.857). CONCLUSIONS Emergency cerclage was associated with longer latency, a significant impact on gestational age at delivery and reduction in the fetal death rate.
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Affiliation(s)
| | | | | | | | - Marcelo Zugaib
- Department of Obstetrics and Gynecology, University of São Paulo Medical School, São Paulo, Brasil
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Szmulewicz C, Neveu ME, Vigoureux S, Fernandez H, Capmas P. Emergency vaginal cervico-isthmic cerclage. J Gynecol Obstet Hum Reprod 2019; 48:391-394. [PMID: 30905851 DOI: 10.1016/j.jogoh.2019.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/14/2019] [Accepted: 03/20/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Cervical cerclage is the principal treatment for women with a cervical insufficiency, which is a predominant factor in second trimester loss and preterm birth. A cervico-isthmic cerclage is recommended in case of a previous failure of McDonald cerclage or in case of an absent portio vaginalis of the cervix. In women who have prolapsed membranes at or beyond a dilated external cervical os before 24 weeks of gestation, an emergency cerclage can sometimes be performed. The aim of this study is to report our experience with emergency transvaginal cervico-isthmic cerclage. STUDY DESIGN This is a retrospective, single-centre study conducted between 2009 and 2017 of women who received a transvaginal cervico-isthmic emergency cerclage. Emergency cerclage was defined as cerclage performed on women who had prolapsed membranes at or beyong a dilated external cervical os before 24 weeks of gestation. The exclusion criteria were twin pregnancy, preterm rupture of membranes, and clinical or biological signs of infection. RESULTS Three women were included. One woman had a history of failure of emergency McDonald cerclage during her previous pregnancy. The two other women had a failure of McDonald cerclage during index pregnancy. All women presented prolapsed membranes at or beyond a dilated external cervical os as defined for an emergency cerclage. The emergency cerclage was performed at a mean gestational age of 21.5 weeks of gestation. The average gestational age of delivery was 38.5 weeks of gestation by caesarean section. CONCLUSION Despite the small number of women, this study shows that this type of cerclage was effective in pregnancy prolongation for women at high risk of preterm birth in case of McDonald cerclage failure. Nevertheless, this technique requires a trained surgical team. A randomised trial should be performed to evaluate the need for emergency vaginal cervico-isthmic cerclage.
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Affiliation(s)
- Claire Szmulewicz
- AP-HP, Hôpital Bicêtre, GHU Sud, Department of Gynecology and Obstetrics, 94276 Le Kremlin-Bicêtre, France
| | - Marie-Emmanuelle Neveu
- AP-HP, Hôpital Bicêtre, GHU Sud, Department of Gynecology and Obstetrics, 94276 Le Kremlin-Bicêtre, France; Inserm, Centre of Research in Epidemiology and Population Health (CESP), U1018, 94276 Le Kremlin-Bicêtre, France
| | - Solène Vigoureux
- AP-HP, Hôpital Bicêtre, GHU Sud, Department of Gynecology and Obstetrics, 94276 Le Kremlin-Bicêtre, France; Inserm, Centre of Research in Epidemiology and Population Health (CESP), U1018, 94276 Le Kremlin-Bicêtre, France; University Paris Sud Orsay, 94276 Le Kremlin-Bicêtre, France
| | - Hervé Fernandez
- AP-HP, Hôpital Bicêtre, GHU Sud, Department of Gynecology and Obstetrics, 94276 Le Kremlin-Bicêtre, France; Inserm, Centre of Research in Epidemiology and Population Health (CESP), U1018, 94276 Le Kremlin-Bicêtre, France; University Paris Sud Orsay, 94276 Le Kremlin-Bicêtre, France
| | - Perrine Capmas
- AP-HP, Hôpital Bicêtre, GHU Sud, Department of Gynecology and Obstetrics, 94276 Le Kremlin-Bicêtre, France; Inserm, Centre of Research in Epidemiology and Population Health (CESP), U1018, 94276 Le Kremlin-Bicêtre, France; University Paris Sud Orsay, 94276 Le Kremlin-Bicêtre, France.
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Brown RG, Chan D, Terzidou V, Lee YS, Smith A, Marchesi JR, MacIntyre DA, Bennett PR. Prospective observational study of vaginal microbiota pre- and post-rescue cervical cerclage. BJOG 2019; 126:916-925. [PMID: 30854760 PMCID: PMC6750128 DOI: 10.1111/1471-0528.15600] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To investigate the relation between vaginal microbiota composition and outcome of rescue cervical cerclage. DESIGN Prospective observational study. SETTING Queen Charlotte's and Chelsea Hospital, London. POPULATION Twenty singleton pregnancies undergoing a rescue cervical cerclage. METHODS Vaginal microbiota composition was analysed in women presenting with a dilated cervix and exposed fetal membranes before and 10 days following rescue cervical cerclage and was correlated with clinical outcomes. MAIN OUTCOME MEASURES Composition of vaginal bacteria was characterised by culture-independent next generation sequencing. Successful cerclage was defined as that resulting in the birth of a neonate discharged from hospital without morbidity. Unsuccessful cerclage was defined as procedures culminating in miscarriage, intrauterine death, neonatal death or significant neonatal morbidity. RESULTS Reduced Lactobacillus spp. relative abundance was observed in 40% of cases prior to rescue cerclage compared with 10% of gestation age-matched controls (8/20, 40% versus 3/30, 10%, P = 0.017). Gardnerella vaginalis was over-represented in women presenting with symptoms (3/7, 43% versus 0/13, 0%, P = 0.03, linear discriminant analysis, LDA (log 10) and cases culminating in miscarriage (3/6, 50% versus 0/14, 0%, P = 0.017). In the majority of cases (10/14, 71%) bacterial composition was unchanged following cerclage insertion and perioperative interventions. CONCLUSIONS Reduced relative abundance of Lactobacillus spp. is associated with premature cervical dilation, whereas high levels of G. vaginalis are associated with unsuccessful rescue cerclage cases. The insertion of a rescue cerclage does not affect the underlying bacterial composition in the majority of cases. TWEETABLE ABSTRACT Preterm cervical dilatation associates with reduced Lactobacillus spp. Presence of Gardnerella vaginalis predicts rescue cerclage failure.
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Affiliation(s)
- R G Brown
- Queen Charlotte's & Chelsea Hospital, Imperial College Healthcare National Health Service Trust, London, UK.,Imperial College Parturition Research Group, Division of the Institute of Reproductive and Developmental Biology, Imperial College London, London, UK
| | - D Chan
- Queen Charlotte's & Chelsea Hospital, Imperial College Healthcare National Health Service Trust, London, UK.,Imperial College Parturition Research Group, Division of the Institute of Reproductive and Developmental Biology, Imperial College London, London, UK
| | - V Terzidou
- Imperial College Parturition Research Group, Division of the Institute of Reproductive and Developmental Biology, Imperial College London, London, UK.,Chelsea & Westminster Hospital, Chelsea & Westminster National Health Service Foundation Trust, London, UK
| | - Y S Lee
- Imperial College Parturition Research Group, Division of the Institute of Reproductive and Developmental Biology, Imperial College London, London, UK
| | - A Smith
- School of Biosciences, Cardiff University, Cardiff, UK
| | - J R Marchesi
- School of Biosciences, Cardiff University, Cardiff, UK.,Centre for Digestive and Gut Health, Imperial College London, London, UK
| | - D A MacIntyre
- Imperial College Parturition Research Group, Division of the Institute of Reproductive and Developmental Biology, Imperial College London, London, UK
| | - P R Bennett
- Queen Charlotte's & Chelsea Hospital, Imperial College Healthcare National Health Service Trust, London, UK.,Imperial College Parturition Research Group, Division of the Institute of Reproductive and Developmental Biology, Imperial College London, London, UK
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No 373 - Insuffisance cervicale et cerclage cervical. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2019; 41:248-263. [DOI: 10.1016/j.jogc.2018.11.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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No. 373-Cervical Insufficiency and Cervical Cerclage. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2019; 41:233-247. [DOI: 10.1016/j.jogc.2018.08.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Park JY, Cho SH, Jeon SJ, Kook SY, Park H, Oh KJ, Hong JS. Outcomes of physical examination-indicated cerclage in twin pregnancies with acute cervical insufficiency compared to singleton pregnancies. J Perinat Med 2018; 46:845-852. [PMID: 29116935 DOI: 10.1515/jpm-2017-0218] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 10/02/2017] [Indexed: 11/15/2022]
Abstract
Objectives To compare pregnancy outcomes of physical examination-indicated cerclage in twin pregnancies with acute cervical insufficiency with that of singletons. Methods This retrospective cohort study included 88 consecutive women (17 twins and 71 singletons) who had undergone physical examination-indicated cerclage because of acute cervical insufficiency (defined as painless cervical dilation with (1) prolapsed and/or visible membranes at the external cervical os on speculum examination and (2) a functional cervical length of zero on transvaginal ultrasound) between 160/7 and 236/7 weeks. The primary outcome measure was preterm delivery <34 weeks. Results (1) The frequency of preterm delivery <34 weeks was not significantly different between the two groups [twins, 56% (9/16) vs. singleton, 53% (37/70), P>0.999]. (2) The perinatal mortality was 21% (7/34) in twins and 32% (23/71) in singletons. (3) The median gestational age at delivery for twin pregnancies was 31.0 weeks (IQR, 22.6-36.5 weeks), which was similar to that of singleton pregnancies (median 32.4 weeks; IQR 22.3-38.3 weeks). (4) There were no significant differences in preterm delivery before 28 and 32 weeks, interval from cerclage to delivery within 1, 2, 4 and 8 weeks and neonatal morbidities between the two groups. Conclusion The obstetric and neonatal outcomes of physical examination-indicated cerclage in twin pregnancies were comparable to those in singleton pregnancies.
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Affiliation(s)
- Jee Yoon Park
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Soo-Hyun Cho
- Health Promotion Center, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Se Jeong Jeon
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Song Yi Kook
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Hyunsoo Park
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Kyung Joon Oh
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Joon-Seok Hong
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
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Swanson K, Grobman WA, Miller ES. Is Uterocervical Angle Associated with Gestational Latency after Physical Exam Indicated Cerclage? Am J Perinatol 2018; 35:840-843. [PMID: 29365330 PMCID: PMC6037605 DOI: 10.1055/s-0037-1621734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Prediction of gestational latency after placement of physical exam indicated cerclage (PEIC) is limited. Uterocervical angle (UCA) has been associated with spontaneous preterm delivery in the general population. Our objective was to examine whether UCA is associated with gestational latency in women with PEIC. STUDY DESIGN This retrospective cohort included women with a singleton gestation who had PEIC placed at a single tertiary care center between January 2010 and September 2015. Ultrasound images of the cervix obtained prior to placement of PEIC were reviewed. Spearman's correlation coefficient for the relationship between UCA and gestational latency was estimated. UCA was dichotomized at 95° and 105°. Survival analyses were performed and Cox proportional hazard ratios were calculated. RESULTS Sixty women met the inclusion criteria. Median gestational latency was 93 days (IQR 39-121 d). There was no significant correlation between UCA and gestational latency (Spearman's rho 0.08, p = 0.54). Survival analyses demonstrated no significant difference in gestational latency stratified by UCA ≥ 95° (HR 1.19, 95% CI 0.70-2.04) or UCA ≥ 105° (HR 0.95, 95% CI 0.56-1.63). Findings persisted after adjusting for potential confounders (aHR 1.29, 95% CI 0.74-2.23 for UCA ≥ 95° and aHR 1.04, 95% CI 0.60-1.82). CONCLUSION UCA is not associated with gestational latency in women with PEIC.
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Affiliation(s)
- Kate Swanson
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - William A. Grobman
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Emily S. Miller
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Lim K, Butt K, Crane JM. No. 257-Ultrasonographic Cervical Length Assessment in Predicting Preterm Birth in Singleton Pregnancies. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2018; 40:e151-e164. [DOI: 10.1016/j.jogc.2017.11.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lim K, Butt K, Crane JM. Archivée: No 257-Recours à l'évaluation échographique de la longueur cervicale pour prédire l'accouchement préterme dans le cadre de grossesses monofœtales. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2018; 40:e165-e180. [DOI: 10.1016/j.jogc.2017.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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The Role of PTB Clinics: A Review of the Screening Methods, Interventions and Evidence for Preterm Birth Surveillance Clinics for High-Risk Asymptomatic Women. WOMEN’S HEALTH BULLETIN 2017. [DOI: 10.5812/whb.12667] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Abstract
Periviable birth contributes disproportionately to perinatal morbidity and mortality. By analyzing the most relevant outcomes after a preterm birth some information can be provided on the potential benefit of interventions. This article discusses surgical and medical interventions that may offer neonatal benefit including cerclage, amniocentesis, progesterone, antenatal corticosteroids, magnesium sulfate for neuroprotection, and tocolysis. Cervical cerclage has the greatest promise at reducing morbidity and mortality related to periviable birth even though it may not reduce the overall preterm birth rate. The use of antenatal corticosteroids, magnesium sulfate, progesterone, and tocolytics may also improve outcome. Studies specifically evaluating these interventions are needed.
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Kanbayashi S, Sato Y, Taga A, Satake Y, Emoto I, Maruyama S, Kim T. Positive vaginal culture at rescue cerclage predicts subsequent preterm delivery. J Matern Fetal Neonatal Med 2017; 31:1161-1165. [DOI: 10.1080/14767058.2017.1311313] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shota Kanbayashi
- Department of Obstetrics and Gynecology, Otsu Red Cross Hospital, Otsu, Japan
| | - Yukiyasu Sato
- Department of Obstetrics and Gynecology, Otsu Red Cross Hospital, Otsu, Japan
| | - Atsuko Taga
- Department of Obstetrics and Gynecology, Otsu Red Cross Hospital, Otsu, Japan
| | - Yumiko Satake
- Department of Obstetrics and Gynecology, Otsu Red Cross Hospital, Otsu, Japan
| | - Ikuko Emoto
- Department of Obstetrics and Gynecology, Otsu Red Cross Hospital, Otsu, Japan
| | - Shunsuke Maruyama
- Department of Obstetrics and Gynecology, Otsu Red Cross Hospital, Otsu, Japan
| | - Tomoko Kim
- Department of Obstetrics and Gynecology, Otsu Red Cross Hospital, Otsu, Japan
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Brown R, Gagnon R, Delisle MF. Insuffisance cervicale et cerclage cervical. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2017; 38:S376-S390. [PMID: 28063549 DOI: 10.1016/j.jogc.2016.09.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIF La présente directive clinique a pour but de fournir un cadre de référence que les cliniciens pourront utiliser pour identifier les femmes qui sont exposées aux plus grands risques de connaître une insuffisance cervicale, ainsi que pour déterminer les circonstances en présence desquelles la mise en place d'un cerclage pourrait s'avérer souhaitable. RéSULTATS: La littérature publiée a été récupérée par l'intermédiaire de recherches menées dans PubMed ou MEDLINE, CINAHL et The Cochrane Library en 2012 au moyen d'un vocabulaire contrôlé (p. ex. « uterine cervical incompetence ») et de mots clés appropriés (p. ex. « cervical insufficiency », « cerclage », « Shirodkar », « cerclage », « MacDonald », « cerclage », « abdominal », « cervical length », « mid-trimester pregnancy loss »). Les résultats ont été restreints aux analyses systématiques, aux essais comparatifs randomisés / essais cliniques comparatifs et aux études observationnelles. Aucune restriction n'a été appliquée en matière de date ou de langue. Les recherches ont été mises à jour de façon régulière et intégrées à la directive clinique jusqu'en janvier 2011. La littérature grise (non publiée) a été identifiée par l'intermédiaire de recherches menées dans les sites Web d'organismes s'intéressant à l'évaluation des technologies dans le domaine de la santé et d'organismes connexes, dans des collections de directives cliniques, dans des registres d'essais cliniques et auprès de sociétés de spécialité médicale nationales et internationales. VALEURS La qualité des résultats est évaluée au moyen des critères décrits dans le rapport du Groupe d'étude canadien sur les soins de santé préventifs (Tableau). RECOMMANDATIONS.
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Robertson JE, Lisonkova S, Lee T, De Silva DA, von Dadelszen P, Synnes AR, Joseph KS, Liston RM, Magee LA. Fetal, Infant and Maternal Outcomes among Women with Prolapsed Membranes Admitted before 29 Weeks Gestation. PLoS One 2016; 11:e0168285. [PMID: 28002467 PMCID: PMC5176283 DOI: 10.1371/journal.pone.0168285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/28/2016] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Few studies have examined fetal, infant and maternal mortality and morbidity among pregnant women at very early gestation with an open cervix and prolapsed membranes. We carried out a study describing the outcomes of women hospitalized with prolapsed membranes at 22-28 weeks' gestation. METHODS We prospectively recruited women with singleton pregnancies admitted at 22-28 weeks' gestation to tertiary hospitals of the Canadian Perinatal Network between 2005 and 2009. Time-to-delivery, perinatal death, neonatal intensive care unit (NICU) admission, severe neonatal morbidity and severe maternal morbidity were compared between women admitted at 22-25 vs. 26-28 weeks gestation. Logistic regression was used to estimate adjusted odds ratios (AOR) and 95% confidence intervals. RESULTS 129 women at 22-25 weeks gestation and 65 women at 26-28 weeks gestation were admitted to hospital and the median time-to-delivery was 4 days in both groups. Stillbirth rates were 12.4% vs 4.6% among women admitted at earlier vs later gestation (AOR 2.8, 95% CI 0.5-14.8), while perinatal death rates were 38.0% vs 6.1% (AOR 14.1, 95% CI 3.5-59.0), respectively. There were no significant differences in NICU admission and severe morbidity among live-born infants; 89.4% and 82.3% died or were admitted to NICU, (P value 0.18), and 53.9% vs 44.0% of NICU infants had severe neonatal morbidity (P value 0.28). Antibiotics, tocolysis and cerclage did not have a significant effect on perinatal death. Maternal death or severe maternal morbidity occurred in 8.5% and 6.2% of women admitted at 22-25 vs 26-28 weeks (AOR 1.2, 95% CI 0.4-4.2). CONCLUSION Perinatal mortality among women with prolapsed membranes at very early gestation is high, although significantly lower among those admitted at a relatively later gestational age. Rates of adverse maternal outcomes are also high. This information can be used to counsel women with prolapsed membranes at 22 to 28 weeks gestation.
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Affiliation(s)
- Julie E. Robertson
- Department of Obstetrics and Gynaecology, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
- * E-mail:
| | - Sarka Lisonkova
- Department of Obstetrics and Gynaecology, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
| | - Tang Lee
- Department of Obstetrics and Gynaecology, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
| | - Dane A. De Silva
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Peter von Dadelszen
- Department of Obstetrics and Gynaecology, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
| | - Anne R. Synnes
- Department of Pediatrics, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
| | - K. S. Joseph
- Department of Obstetrics and Gynaecology, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Robert M. Liston
- Department of Obstetrics and Gynaecology, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
| | - Laura A. Magee
- Department of Obstetrics and Gynaecology, University of British Columbia and the British Columbia’s Children’s and Women’s Hospital and Health Centre, Vancouver, British Columbia, Canada
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Marcellin L. Prévention de l’accouchement prématuré par cerclage du col de l’utérus. ACTA ACUST UNITED AC 2016; 45:1299-1323. [DOI: 10.1016/j.jgyn.2016.09.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 09/21/2016] [Accepted: 09/21/2016] [Indexed: 12/22/2022]
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Hatakeyama Y, Miura H, Sato A, Onodera Y, Sato N, Shimizu D, Kumazawa Y, Sanada H, Hirano H, Terada Y. Neutrophil elastase in amniotic fluid as a predictor of preterm birth after emergent cervical cerclage. Acta Obstet Gynecol Scand 2016; 95:1136-42. [PMID: 27216361 PMCID: PMC5094512 DOI: 10.1111/aogs.12928] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/19/2016] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The aim of this study was to investigate neutrophil elastase (NE) in amniotic fluid as a potential marker for predicting pregnancy continuation. MATERIAL AND METHODS We enrolled 34 pregnant women with bulging fetal membrane during the second trimester who underwent emergent cerclage after confirming the absence of intrauterine infection (amniotic fluid glucose ≥15 mg/dL). Amniotic fluid NE levels were compared between women who completed and did not complete 30, 34, and 36 weeks of gestation, and the optimal cut-off value for predicting pregnancy continuation was estimated. Moreover, the differences in the duration of continued pregnancy were compared between women with NE levels above and below the optimal cut-off value. RESULTS The optimal cut-off value for NE in amniotic fluid that predicted pregnancy continuation beyond 30, 34, and 36 weeks of gestation was 180 ng/mL; this cut-off value had a sensitivity, specificity, positive predictive value, and negative predictive value of 84.0, 77.8, 91.3, and 63.7% beyond 30 weeks of gestation; 87.5, 80.0, 91.5, and 72.3% beyond 34 weeks of gestation; and 85.0, 71.4, 80.9, and 76.9% beyond 36 weeks of gestation, respectively. The duration of continued pregnancy from emergent cerclage to delivery was significantly longer in women with amniotic fluid NE <180 ng/mL (95.1 ± 5.4 days) than in women with amniotic fluid NE ≥180 ng/mL (44.8 ± 14.3 days). CONCLUSION The NE levels in amniotic fluid may serve as a useful marker for predicting the duration of continued pregnancy after cervical cerclage.
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Affiliation(s)
- Yuko Hatakeyama
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Hiroshi Miura
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan.
| | - Akira Sato
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Yohei Onodera
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Naoki Sato
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Dai Shimizu
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Yukiyo Kumazawa
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Hiroyuki Sanada
- Division of Obstetrics and Gynecology, Akita Red Cross Hospital, Akita, Japan
| | - Hideto Hirano
- Division of Obstetrics and Gynecology, Akita Red Cross Hospital, Akita, Japan
| | - Yukihiro Terada
- Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University Graduate School of Medicine, Akita, Japan
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Ecker JL, Kaimal A, Mercer BM, Blackwell SC, deRegnier RAO, Farrell RM, Grobman WA, Resnik JL, Sciscione AC, Sciscione AC. Periviable birth: Interim update. Am J Obstet Gynecol 2016; 215:B2-B12.e1. [PMID: 27103153 DOI: 10.1016/j.ajog.2016.04.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Approximately 0.5% of all births occur before the third trimester of pregnancy, and these very early deliveries result in the majority of neonatal deaths and more than 40% of infant deaths. A recent executive summary of proceedings from a joint workshop defined periviable birth as delivery occurring from 20 0/7 weeks to 25 6/7 weeks of gestation. When delivery is anticipated near the limit of viability, families and health care teams are faced with complex and ethically challenging decisions. Multiple factors have been found to be associated with short-term and long-term outcomes of periviable births in addition to gestational age at birth. These include, but are not limited to, nonmodifiable factors (eg, fetal sex, weight, plurality), potentially modifiable antepartum and intrapartum factors (eg, location of delivery, intent to intervene by cesarean delivery or induction for delivery, administration of antenatal corticosteroids and magnesium sulfate), and postnatal management (eg, starting or withholding and continuing or withdrawing intensive care after birth). Antepartum and intrapartum management options vary depending upon the specific circumstances but may include short-term tocolytic therapy for preterm labor to allow time for administration of antenatal steroids, antibiotics to prolong latency after preterm premature rupture of membranes or for intrapartum group B streptococci prophylaxis, and delivery, including cesarean delivery, for concern regarding fetal well-being or fetal malpresentation. Whenever possible, periviable births for which maternal or neonatal intervention is planned should occur in centers that offer expertise in maternal and neonatal care and the needed infrastructure, including intensive care units, to support such services. This document describes newborn outcomes after periviable birth, provides current evidence and recommendations regarding interventions in this setting, and provides an outline for family counseling with the goal of incorporating informed patient preferences. Its intent is to provide support and guidance regarding decisions, including declining and accepting interventions and therapies, based on individual circumstances and patient values.
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Roman A, Rochelson B, Martinelli P, Saccone G, Harris K, Zork N, Spiel M, O’Brien K, Calluzzo I, Palomares K, Rosen T, Berghella V, Fleischer A. Cerclage in twin pregnancy with dilated cervix between 16 to 24 weeks of gestation: retrospective cohort study. Am J Obstet Gynecol 2016; 215:98.e1-98.e11. [PMID: 26827881 DOI: 10.1016/j.ajog.2016.01.172] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 01/10/2016] [Accepted: 01/20/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND Cervical dilation in the second trimester is associated with a greater than 90% rate of spontaneous preterm birth and a poor perinatal prognosis. OBJECTIVE To compare the perinatal outcomes of twin pregnancies with dilated cervix in women who underwent either cerclage or expectant management. STUDY DESIGN Retrospective cohort study of asymptomatic twin pregnancies identified with cervical dilation of ≥1 cm at 16-24 weeks (1997-2014) at 7 institutions. Exclusion criteria were genetic or major fetal anomaly, multifetal reduction at >14 weeks, prior cerclage placement, monochorionic-monoamniotic placentation, active vaginal bleeding, labor, chorioamnionitis, elective termination of pregnancy, or medically indicated preterm birth. The primary outcome was incidence of spontaneous preterm birth at <34 weeks. Secondary outcomes were incidence of spontaneous preterm birth at <32 weeks, <28 weeks, and <24 weeks; perinatal mortality; and composite adverse neonatal outcome (respiratory distress syndrome, intraventricular hemorrhage, necrotizing enterocolitis, and sepsis). RESULTS A total of 76 women with twin pregnancy with dilated cervix of 1.0-4.5 cm were managed with either cerclage (n = 38) or expectant management (n = 38). Demographic characteristics were not significantly different. Analysis was adjusted for amniocentesis and vaginal progesterone use. In the cerclage group, 29 women (76%) received prophylactic indomethacin and 36 (94%) received prophylactic antibiotics, whereas the expectant management group did not. Interval from time at diagnosis of open cervix to delivery in the cerclage group was 10.46 ± 5.6 weeks vs 3.7 ± 3.2 weeks in the expectant management group, with a mean difference of 6.76 weeks (95% confidence interval [CI], 4.71-8.81). There were significant decreases in spontaneous preterm birth at <34 weeks (52.6% vs 94.7%; adjusted odds ratio [aOR], 0.06; 95% CI, 0.03-0.34), at <32 weeks (44.7% vs 89.4%; aOR, 0.08; 95% CI, 0.03-0.34); at <28 weeks (31.6% vs 89.4%; aOR, 0.05; 95% CI, 0.01-0.2); and at <24 weeks (13.1% vs 47.3%; aOR, 0.17; 95% CI, 0.05-0.54). There were also significant reductions in perinatal mortality (27.6% vs 59.2%; aOR, 0.24; 95% CI, 0.11-0.5), neonatal intensive care unit admission (75.9% vs 97.6%; aOR, 0.07; 95% CI, 0.01-0.66), and composite adverse neonatal outcome (33.9% vs 90.5%; aOR, 0.05; 95% CI, 0.01-0.21). CONCLUSION Cerclage, indomethacin, and antibiotics in twin pregnancies with dilated cervix ≥1 cm before 24 weeks were associated with significant longer latency period from diagnosis to delivery (6.7 weeks), decreased incidence of spontaneous preterm birth at any given gestational age, and improved perinatal outcome when compared with expectant management.
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Diago Almela VJ, Martinez-Varea A, Perales-Puchalt A, Alonso-Diaz R, Perales A. Good prognosis of cerclage in cases of cervical insufficiency when intra-amniotic inflammation/infection is ruled out. J Matern Fetal Neonatal Med 2016; 28:1563-8. [PMID: 25212978 DOI: 10.3109/14767058.2014.960836] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To determine if absence of sub-clinical intra-amniotic inflammation improves the prognosis of rescue cerclage in cases of bulging membranes. METHODS Cohort study with all women with bulging membranes admitted into our hospital between 2009 and 2013. Patients underwent amniocentesis to quantify amniotic glucose, leukocytes, IL-6 and leukocyte esterase levels and for microbiological culture. All patients without intra-amniotic inflammation or sub-clinical chorioamnionitis were proposed a physical examination-indicated cervical cerclage. Those who did not accept were treated with bed rest. RESULTS We enrolled 31 women. Median gestational age at diagnosis was 23 + 1 (21–25 + 4) weeks. Median interval until delivery was 12 (3–52.5) d. IL-6 had the highest diagnostic accuracy for good prognosis. Patients with IL6 <2.90 ng/ml were diagnosed later in pregnancy and presented a longer interval until delivery (89 versus 4 d), higher gestational age at delivery (35 + 1 versus 23 + 3 weeks) and a lower rate of prematurity (54.5% versus 100%) and perinatal mortality (0% versus 80%) than those with IL-6 ≥2.90 ng/ml. Rescue cerclage and low Il-6 were the best predictors of good outcome. CONCLUSION IL-6 levels in amniotic fluid may be of clinical value for individualizing the management of patients with bulging membranes for placement of rescue cerclage.
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48
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Emergency Cerclage: Outcomes, Patient Selection, and Operative Considerations. Clin Obstet Gynecol 2016; 59:286-94. [DOI: 10.1097/grf.0000000000000197] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Song JE, Park SJ, Lee KY. Amniotic fluid total antioxidant capacity and nitric oxide in emergency cerclage. J Matern Fetal Neonatal Med 2016; 29:3364-7. [PMID: 26768134 DOI: 10.3109/14767058.2015.1127343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Nitric oxide (NO) is one of the reactive oxygen species (ROS) that has been associated with inflammation. Total antioxidant capacity (TAC) neutralizes ROS. We evaluated that amniotic fluid (AF) TAC and NO correlate with the outcome of emergency cerclage. METHODS Thirty-six women with cervical dilatation (≥2 cm) and bulging membranes between 16 and 24 weeks underwent emergency cerclage. Sixty-seven women between 16 and 24 weeks who had amniocentesis for chromosomal test provided control samples. AF samples were tested for TAC, and NO, and then correlated with pregnancy outcome. RESULTS AF TAC was significantly lower in cerclage group than control group (cerclage: 92.6 mmol/L versus control: 127.2 mmol/L, p < 0.001). Higher levels of AF TAC were associated with a longer latency from cerclage to delivery (r = 0.62, p < 0.001). NO was similar between two groups (p = 0.35). The mean gestational age at delivery of control group was better than cerclage group (cerclage: 29.5 weeks versus control: 39.4 weeks, p < 0.01). CONCLUSION Higher levels of AF TAC are correlated with longer prolongation days after cerclage. However, AF NO and iNOS are not different between two groups.
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Affiliation(s)
- Ji Eun Song
- a Department of Obstetrics and Gynecology , Hallym University College of Medicine , Seoul , Republic of Korea and
| | - Seok Joo Park
- b Ilsong Institute of Life Science, Hallym University , Anyang, Gyeonggi-Do , Republic of Korea
| | - Keun Young Lee
- a Department of Obstetrics and Gynecology , Hallym University College of Medicine , Seoul , Republic of Korea and
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Brown JE, Partlow BP, Berman AM, House MD, Kaplan DL. Injectable silk-based biomaterials for cervical tissue augmentation: an in vitro study. Am J Obstet Gynecol 2016; 214:118.e1-9. [PMID: 26314518 PMCID: PMC4698015 DOI: 10.1016/j.ajog.2015.08.046] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 07/23/2015] [Accepted: 08/19/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cerclage therapy is an important treatment option for preterm birth prevention. Several patient populations benefit from cerclage therapy including patients with a classic history of cervical insufficiency; patients who present with advanced cervical dilation prior to viability; and patients with a history of preterm birth and cervical shortening. Although cerclage is an effective treatment option in some patients, it can be associated with limited efficacy and procedure complications. Development of an alternative to cerclage therapy would be an important clinical development. Here we report on an injectable, silk protein-based biomaterial for cervical tissue augmentation. The rationale for the development of an injectable biomaterial is to restore the native properties of cervical tissue. While cerclage provides support to the tissue, it does not address excessive tissue softening, which is a central feature of the pathogenesis of cervical insufficiency. Silk protein-based hydrogels, which are biocompatible and naturally degrade in vivo, are suggested as a platform for restoring the native properties of cervical tissue and improving cervical function. OBJECTIVE We sought to study the properties of an injectable, silk-based biomaterial for potential use as an alternative treatment for cervical insufficiency. These biomaterials were evaluated for mechanical tunability, biocompatibility, facile injection, and in vitro degradation. STUDY DESIGN Silk protein solutions were cross-linked by an enzyme catalyzed reaction to form elastic biomaterials. Biomaterials were formulated to match the native physical properties of cervical tissue during pregnancy. The cell compatibility of the materials was assessed in vitro using cervical fibroblasts, and biodegradation was evaluated using concentrated protease solution. Tissue augmentation or bulking was demonstrated using human cervical tissue from nonpregnant hysterectomy specimens. Mechanical compression tests measured the tissue stiffness as a function of the volume of injected biomaterial. RESULTS Silk protein concentration, molecular weight, and concentration of cross-linking agent were varied to generate biomaterials that functioned from hard gels to viscous fluids. Biomaterials that matched the mechanical features of cervical tissues were chosen for further study. Cervical fibroblasts cultured on these biomaterials were proliferative and metabolically active over 6 days. Biomaterials were degraded in protease solution, with rate of mass loss dependent on silk protein molecular weight. Injection of cervical tissue samples with 100 μL of the biomaterial resulted in a significant volume increase (22.6% ± 8.8%, P < .001) with no significant change in tissue stiffness. CONCLUSION Cytocompatible, enzyme cross-linked silk protein biomaterials show promise as a tissue bulking agent. The biomaterials were formulated to match the native mechanical properties of human cervical tissue. These biomaterials should be explored further as a possible alternative to cerclage for providing support to the cervix during pregnancy.
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Affiliation(s)
- Joseph E Brown
- Department of Biomedical Engineering, Tufts University, Medford, MA
| | | | - Alison M Berman
- Department of Biomedical Engineering, Tufts University, Medford, MA
| | - Michael D House
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Tufts Medical Center, Boston, MA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA.
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