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Thom EA, Saade GR, Askie LM, Ugwu LG, Mol BW, Vayssiere C, Norman JE, Pajkrt E, Clifton RG, Biggio JR, Arnaud C, Berghella V, Canino MG, Carreras E, Dugoff L, Hoffman MK, Pacagnella RC, Reddy UM, Saccone G, van ‘t Hooft J, Dang VQ. PROMPT: Prospective Meta-analysis for Pessary Trials Study Protocol. Am J Perinatol 2024; 41:e2230-e2237. [PMID: 37429323 PMCID: PMC10776795 DOI: 10.1055/s-0043-1771018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
OBJECTIVE Preterm birth, defined as birth before 37 weeks of gestation, is a leading cause of perinatal and infant mortality throughout the world. Preterm birth is also associated with long-term neurological disabilities and other significant health issues in children. A short cervix in the second trimester has been noted to be one of the strongest predictors of subsequent spontaneous preterm birth in both singleton and multiple pregnancies. Some studies have shown that cervical support in the form of an Arabin pessary lowers the risk of preterm birth in women with a singleton gestation and short cervical length; however, other studies have conflicting results. Our objective was to form an international collaborative of planned or ongoing randomized trials of pessary in singleton and twin gestations with a short cervix. STUDY DESIGN In November 2014, an international group of investigators, who had initiated or were planning randomized trials of pessary for pregnant people with a short cervix and singleton or twin gestation to prevent preterm birth, formed a collaboration to plan a prospective individual patient data (IPD) meta-analysis of randomized trials (PROspective Meta-analysis of Pessary Trials [PROMPT]). The PROMPT investigators agreed on meta-analysis IPD hypotheses for singletons and twins, eligibility criteria, and a set of core baseline and outcome measures. The primary outcome is a composite of fetal death or preterm delivery before 32 weeks' gestation. Secondary outcomes include maternal and neonatal morbidities. The PROMPT protocol may be viewed as a written agreement among the study investigators who make up the PROMPT consortium (PROSPERO ID# CRD42018067740). RESULTS Results will be published in phases as the individual participating studies are concluded and published. Results of the first phase of singleton and twin pessary trials are expected to be available in late 2022. Updates are planned as participating trials are completed and published. KEY POINTS · Short cervical length predicts preterm birth.. · Results of prior cervical pessary trials are mixed.. · Meta-analysis of pessary trials protocol..
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Affiliation(s)
- Elizabeth A. Thom
- The George Washington University Biostatistics Center, Washington, District of Columbia
| | - George R. Saade
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas
| | - Lisa M. Askie
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - Lynda G. Ugwu
- The George Washington University Biostatistics Center, Washington, District of Columbia
| | - Ben W.J. Mol
- Department of Obstetrics and Gynecology, Monash University, Monash, Australia
| | - Christophe Vayssiere
- Department of Obstetrics and Gynecology, Toulouse III University, Toulouse, France
| | | | - Eva Pajkrt
- Department of Obstetrics and Gynecology, Academic Medical Center, Amsterdam, The Netherlands
| | - Rebecca G. Clifton
- The George Washington University Biostatistics Center, Washington, District of Columbia
| | - Joseph R. Biggio
- Department of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Catherine Arnaud
- Department of Obstetrics and Gynecology, Toulouse III University, Toulouse, France
| | - Vincenzo Berghella
- Department of Obstetrics and Gynecology, Thomas Jefferson University, Philadelphia, Pennsylvania Am J Perinatol
| | - Maria G. Canino
- Department of Obstetrics and Gynaecology, Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - Elena Carreras
- Department of Obstetrics and Gynaecology, Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - Lorraine Dugoff
- Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Matthew K. Hoffman
- Department of Obstetrics and Gynecology, Columbia University, New York, New York
| | - Rodolfo C. Pacagnella
- Department of Obstetrics and Gynecology, State University of Campinas—UNICAMP, São Paulo, Brazil
| | - Uma M. Reddy
- Division of Extramural Research Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Gabriele Saccone
- Department of Obstetrics and Gynecology, University of Naples Federico II, Naples, Italy
| | - Janneke van ‘t Hooft
- Department of Obstetrics and Gynecology, Academic Medical Center, Amsterdam, The Netherlands
| | - Vinh Q. Dang
- Department of Obstetrics and Gynecology, My Duc Hospital, Ho Chi Minh City, Viet Nam
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Norooznezhad AH, Zargarzadeh N, Javinani A, Nabavian SM, Qaderi S, Mostafaei S, Berghella V, Oyelese Y, Shamshirsaz AA. The effect of cervical pessary on increasing gestational age at delivery in twin pregnancies with asymptomatic short cervix: a systematic review and meta-analysis of randomized controlled trials. AJOG GLOBAL REPORTS 2024; 4:100347. [PMID: 38655568 PMCID: PMC11036094 DOI: 10.1016/j.xagr.2024.100347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
Objective The incidence of preterm delivery is much higher in twin pregnancies than in singletons and even higher if a short cervical length is detected in the second trimester. Studies are contradictory regarding the efficacy of a cervical pessary to decrease preterm birth in twin pregnancies and short cervical length. To conduct a systematic review and meta-analysis investigating the efficacy of cervical pessary in prolonging gestation, preventing preterm birth, and reducing adverse neonatal outcomes in twin pregnancies with an asymptomatic short cervix. Data sources PubMed, Scopus, Web of Science, and ClinicalTrials.org were searched for randomized controlled trials from inception to June 2023. Study eligibility criteria In this study, randomized controlled trials comparing the cervical pessary to expectant management in the pregnant population with twin gestations and asymptomatic short cervix were included. Methods The Cochrane risk-of-bias-2 tool for randomized controlled trials was used for the evaluation of the risk of bias in included studies. A meta-analysis was performed by calculating risk ratio and mean difference with their 95% confidence interval using the random effects model or fixed effect model on the basis of heterogeneity and accounting for potential covariates among the included randomized controlled trials. Results A total of 6 randomized controlled trials were included in the analysis. Cervical pessary did not significantly increase the gestational age at delivery in twin pregnancies with asymptomatic patients (mean difference, 0.36 weeks [-0.27 to 0.99]; P=.270; I2=72.0%). Moreover, the cervical pessary use did not result in a reduction of spontaneous or all-preterm birth before 37 weeks of gestation (risk ratio, 0.88 [0.77-1.00]; P=.061; I2=0.0%). There was no statistically significant difference in the composite neonatal adverse outcomes (risk ratio, 1.001 [0.86-1.16]; P=.981; I2=20.9%), including early respiratory morbidity, intraventricular hemorrhage, necrotizing enterocolitis, and confirmed sepsis. Conclusion The use of cervical pessary in twin pregnancies with asymptomatic short cervix does not seem to be effective in increasing the gestational age at delivery, preventing preterm birth, or reducing adverse neonatal outcomes. This indicates that alternative interventions should be sought for the management of this patient population.
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Affiliation(s)
- Amir Hossein Norooznezhad
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran (Dr. Norooznezhad and Dr. Nabavian)
| | - Nikan Zargarzadeh
- Maternal Fetal Care Center, Division of Maternal Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA (Dr. Zargarzadeh, Dr. Javinani, Dr. Qaderi, Dr. Oyelese, and Dr Shamshirsaz)
| | - Ali Javinani
- Maternal Fetal Care Center, Division of Maternal Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA (Dr. Zargarzadeh, Dr. Javinani, Dr. Qaderi, Dr. Oyelese, and Dr Shamshirsaz)
| | - Seyedeh Maedeh Nabavian
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran (Dr. Norooznezhad and Dr. Nabavian)
| | - Shohra Qaderi
- Maternal Fetal Care Center, Division of Maternal Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA (Dr. Zargarzadeh, Dr. Javinani, Dr. Qaderi, Dr. Oyelese, and Dr Shamshirsaz)
| | - Shayan Mostafaei
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Dr. Mostafaei)
| | - Vincenzo Berghella
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA (Dr. Berghella)
| | - Yinka Oyelese
- Maternal Fetal Care Center, Division of Maternal Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA (Dr. Zargarzadeh, Dr. Javinani, Dr. Qaderi, Dr. Oyelese, and Dr Shamshirsaz)
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (Dr. Oyelese)
| | - Alireza A. Shamshirsaz
- Maternal Fetal Care Center, Division of Maternal Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA (Dr. Zargarzadeh, Dr. Javinani, Dr. Qaderi, Dr. Oyelese, and Dr Shamshirsaz)
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Kyvernitakis I, Baschat AA, Malan M, Rath W, Berger R, Henrich W, Schleussner E, Yousefi B, Timmesfeld N, Maul H. Cervical pessary to prevent preterm birth and poor neonatal outcome: An integrity meta-analysis of randomized controlled trials focusing on adherence to the European Medical Device Regulation. Int J Gynaecol Obstet 2024; 165:607-620. [PMID: 37830250 DOI: 10.1002/ijgo.15169] [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: 06/09/2023] [Revised: 07/28/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Findings from randomized trials (RCTs) on cervical pessary treatment to prevent spontaneous preterm birth are inconsistent. OBJECTIVES Our hypothesis suggests that adhering to the European Medical Device Regulation (MDR) and following the instructions for use are essential prerequisites for successful therapy. Conversely, the non-adherence to these guidelines will probably contribute to its failure. SEARCH STRATEGY AND SELECTION CRITERIA Based on validated criteria from integrity assessments we performed a systematic review identifying 14 RCTs evaluating the effect of cervical pessaries. DATA COLLECTION AND ANALYSIS We analyzed the implications of 14 criteria each accounting for 0-2 points of a score reflecting the clinical evaluation plan (CEP) as proposed by the MDR to evaluate the risk-benefit ratio of medical devices. MAIN RESULTS Seven RCTs in each singleton and twin pregnancies (5193 "cases") were included, detecting a high heterogeneity within control groups (I2 = 85% and 87%, respectively, P < 0.01). The CEP score varied from 11 to 26 points for all studies. The most common reasons for low scores and potential data compromise were poor recruitment rates, no (completed) power analysis, and no pre-registration, but mainly non-adherence to technical, biological, and clinical equivalence to the instructions for use as required by the MDR. All trials with score values greater than 20 had applied audit procedures. Within this group we found significantly reduced rates of spontaneous preterm birth at less than 34 weeks within the pessary group in singleton (odds ratio 0.28; 95% confidence interval 0.12-0.65) and twin pregnancies (odds ratio 0.30; 95% confidence interval 0.13-0.67). Similarly, there was a significant reduction in the composite poor neonatal outcome in singleton (odds ratio 0.25; 95% confidence interval 0.10-0.61) and twin pregnancies (odds ratio 0.54; 95% confidence interval 0.35-0.82) after a pessary as compared with controls. CONCLUSION Non-audited RCTs and meta-analyses mixing studies of different clinical quality as pre-defined by a CEP and the MDR pose the risk for erroneous conclusions.
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Affiliation(s)
- Ioannis Kyvernitakis
- Department of Obstetrics and Prenatal Medicine, Asklepios Clinic Barmbek, Asklepios Medical School, Hamburg, Germany
| | - Ahmet A Baschat
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University, Baltimore, Maryland, USA
| | - Marcel Malan
- Department of Obstetrics and Prenatal Medicine, Asklepios Clinic Barmbek, Asklepios Medical School, Hamburg, Germany
| | - Werner Rath
- Department of Obstetrics and Gynecology, University Hospital of Schleswig-Holstein, Kiel, Germany
| | - Richard Berger
- Department of Obstetrics and Gynecology, Marienhaus Klinikum St. Elisabeth, Neuwied, Germany
| | - Wolfgang Henrich
- Department of Obstetrics, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Ekkehard Schleussner
- Department of Obstetrics and Prenatal Medicine, University of Jena, Jena, Germany
| | - Bahareh Yousefi
- Department of Medical Informatics, Biometry and Epidemiology, Ruhr-University Bochum, Bochum, Germany
| | - Nina Timmesfeld
- Department of Medical Informatics, Biometry and Epidemiology, Ruhr-University Bochum, Bochum, Germany
| | - Holger Maul
- Department of Obstetrics and Prenatal Medicine, Asklepios Clinic Barmbek, Asklepios Medical School, Hamburg, Germany
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Pena-Burgos EM, Sintes Álvarez-Arenas M, Quirós-González V, Bartha JL, De La Calle M. Utility of cervical pessary in the prevention of preterm birth in triplet pregnancies: A single-center observational retrospective study of 165 triplet pregnancies. Eur J Obstet Gynecol Reprod Biol 2024; 295:48-52. [PMID: 38335584 DOI: 10.1016/j.ejogrb.2024.01.036] [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: 10/23/2023] [Revised: 01/25/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024]
Abstract
OBJECTIVE Premature births are a health problem arising in triplet pregnancies, resulting in high levels of morbidity and mortality. The objective of this study is to evaluate the utility of cervical pessaries in reducing prematurity (<34 weeks) in triplet pregnancies. METHODS This is a single-center, retrospective case-control study regarding triplet pregnancies with follow-up at the La Paz University Hospital between 2000 and 2023. Maternal characteristics, obstetric and perinatal outcomes, and the use of cervical pessaries were examined. RESULTS 165 triplet pregnancies were analyzed: 87 (52.7 %) in the case group (premature triplet pregnancies) and 78 in the control group (non-premature triplet pregnancies). A cervical pessary was inserted in 15 (17.2 %) triplet pregnancies in the case group and in 12 (16.7 %) triplet pregnancies in the control group (p = 0.92; OR = 1.04 (0.46-2.35)). A pessary was later inserted in the non-premature group (p = 0.01). The risk of preterm labor and the use of tocolytics ± glucocorticoids were found to be significantly more frequent in the premature group, with p = 0.01; OR = 2.30 (1.21-4.36) and p < 0.01; OR = 2.36 (1.23-4.44), respectively. Protocol-based cesarean sections were more frequent in the non-premature group (p < 0.01), while cesarean sections due to maternal complications (p < 0.01) and premature membrane rupture (p < 0.01) were more frequent in the premature group. CONCLUSION The cervical pessary is not useful in preventing preterm births (< 34 weeks) in triplet pregnancies. It is likely that being pregnant with triplets is a powerful independent factor associated with prematurity, despite other pregnancy conditions. Women who are pregnant with triplets and at risk of preterm labor and those taking tocolytics ± glucocorticoids may benefit from pessary insertion.
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Affiliation(s)
- E M Pena-Burgos
- La Paz University Hospital, Pathology Department, Madrid, Spain.
| | | | - V Quirós-González
- 12 Octubre University Hospital, Strategic Planning Directorate, Madrid, Spain
| | - J L Bartha
- La Paz University Hospital, Obstetrics and Gynaecology Department, Madrid, Spain
| | - M De La Calle
- La Paz University Hospital, Obstetrics and Gynaecology Department, Madrid, Spain
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Bartin R, Andrioli Peralta CF, Peneluppi Horak AC, Rodrigues da Costa KJ, Colmant C, Stirnemann J, Ville Y. Management of short cervix in twin-to-twin transfusion syndrome: a role for pessary placement following fetoscopic laser surgery? Am J Obstet Gynecol 2024; 230:91.e1-91.e12. [PMID: 37453653 DOI: 10.1016/j.ajog.2023.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Preterm labor and delivery is a major concern for patients with twin-to-twin transfusion syndrome undergoing fetoscopic laser surgery. A preoperative short cervix is a risk factor for preterm labor. Pessary placement is a short-acting intervention that may be useful to reduce this adverse event. OBJECTIVE This study aimed to investigate the relationship between pessary placement and preterm delivery in monochorionic twin pregnancies with twin-to-twin transfusion syndrome and a short cervix before fetoscopic laser surgery. STUDY DESIGN This was a retrospective study in 2 centers, including all pregnancies affected by twin-to-twin transfusion syndrome that underwent fetoscopic laser surgery with the Solomon technique between 2013 and 2022 (center A) and 2014 and 2022 (center B) with a preoperative cervical length below 25 mm. This study explored the correlation between cervical length and fetoscopic laser surgery-to-delivery interval following active or expectant management and compared perinatal outcomes between patients managed expectantly and patients managed with pessary placement, using multivariate analysis to control for potential confounders. Patients with a cervical length below 5 mm were not included in the comparative analysis. RESULTS Of 685 patients, 134 met the inclusion criteria. Moreover, 21 patients were treated with a cervical cerclage and excluded from the analysis, leaving 113 patients for the final analysis. There was a significant negative correlation between cervical length at fetoscopic laser surgery and the risk of early delivery (adjusted odds ratio, 0.66; 95% confidence interval, 0.49-0.81; P<.001). The use of a pessary correlated with fewer patients delivering before 28 weeks of gestation (adjusted odds ratio, 0.28; 95% confidence interval, 0.09-0.75), fewer double neonatal demise (adjusted odds ratio, 0.2; 95% confidence interval, 0.05-0.75). Posthoc subgroup analysis suggested that these improvements were essentially noticeable for cervical lengths between 5 and 18 mm, where pessary placement was associated with an increased fetoscopic laser surgery-to-delivery interval (+24 days; 95% confidence interval, 0.86-42; P=.042) and later gestational age at delivery (+3.3 weeks; 95% confidence interval, 0.86-42; P=.035). CONCLUSION Patients with a moderately shortened cervix, between 5 and 18 mm, may benefit from pessary placement after fetoscopic surgery for twin-to-twin transfusion syndrome, resulting in a reduction of adverse neonatal outcomes, double neonatal demise, and severe preterm delivery.
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Affiliation(s)
- Raphael Bartin
- Department of Obstetrics and Fetal Medicine, Necker-Enfants Malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; Faculté de Médecine, Université de Paris, Paris, France
| | - Cleisson Fábio Andrioli Peralta
- Gestar Fetal Medicine and Surgery Center, São Paulo, Brazil; Brazilian Ministry of Health, Programa de Desenvolvimento Institucional do Sistema Único de Saúde, São Paulo, Brazil
| | - Anna Clara Peneluppi Horak
- Heart Hospital Research Institute, São Paulo, Brazil; Brazilian Ministry of Health, Programa de Desenvolvimento Institucional do Sistema Único de Saúde, São Paulo, Brazil
| | - Karina Jorge Rodrigues da Costa
- Heart Hospital Research Institute, São Paulo, Brazil; Brazilian Ministry of Health, Programa de Desenvolvimento Institucional do Sistema Único de Saúde, São Paulo, Brazil
| | - Claire Colmant
- Department of Obstetrics and Fetal Medicine, Necker-Enfants Malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Julien Stirnemann
- Department of Obstetrics and Fetal Medicine, Necker-Enfants Malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; Faculté de Médecine, Université de Paris, Paris, France
| | - Yves Ville
- Department of Obstetrics and Fetal Medicine, Necker-Enfants Malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; Faculté de Médecine, Université de Paris, Paris, France.
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Goodell M, Leechalad L, Soti V. Are Cervical Pessaries Effective in Preventing Preterm Birth? Cureus 2024; 16:e51775. [PMID: 38187016 PMCID: PMC10771609 DOI: 10.7759/cureus.51775] [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] [Received: 11/14/2023] [Accepted: 01/06/2024] [Indexed: 01/09/2024] Open
Abstract
Preterm births are a significant concern, as they can have serious consequences for both infants and mothers. It is crucial to identify risk factors associated with preterm birth and to implement effective interventions, such as progesterone, cervical pessary, and cervical cerclage, to prevent it. This systematic review aims to evaluate the efficacy of cervical pessary in reducing spontaneous preterm delivery. However, cervical pessaries have limited research and conflicting findings when compared to other interventions for preventing preterm labor. Therefore, this review seeks to analyze various studies to evaluate their overall effectiveness and better understand their role in treating this vulnerable population. The literature search was conducted using PubMed between January and September 2023, and the systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The results of this review highlight the importance of continued research into mitigation strategies for preterm birth. There is some evidence that indicates that using cervical pessaries before 34 weeks can be effective. While some studies have reported positive outcomes when cervical pessaries are combined with other treatments like progesterone, there is no solid statistical evidence to support this claim. Furthermore, additional research is needed to comprehend the impact of singleton pregnancies and long-term outcomes for both mothers and infants.
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Affiliation(s)
- Morgan Goodell
- Obstetrics and Gynecology, Lake Erie College of Osteopathic Medicine, Elmira, USA
| | - Leilani Leechalad
- Internal Medicine, Lake Erie College of Osteopathic Medicine, Elmira, USA
| | - Varun Soti
- Pharmacology and Therapeutics, Lake Erie College of Osteopathic Medicine, Elmira, USA
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Roman A. Screening and Prevention of Preterm Birth in Twin Pregnancies. Clin Obstet Gynecol 2023; 66:804-824. [PMID: 37910049 DOI: 10.1097/grf.0000000000000822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Twins represent 3.2% of all live births. However, they account for 20% of all preterm deliveries, 60% delivering <37 weeks, 10.7% <32 weeks, and 5 times higher risk of infant death. Risk factors for preterm birth (PTB) include the history of preterm delivery, monochorionic twins, short cervical length, and cervical surgery. Transvaginal cervical length <24 weeks is the best tool to predict PTB. Only vaginal progesterone in women with transvaginal cervical length <25 mm and physical exam indicated cerclage in women with cervical dilation >1 cm have shown a significant decrease in PTB and improvement in neonatal outcomes.
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Affiliation(s)
- Amanda Roman
- Obstetrics and Gynecology Department, Maternal Fetal Medicine Division, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania
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Rodo C, Maiz N, Arevalo S, Lewi L, Couck I, Hollwitz B, Kyvernitakis I, Carreras E, Hecher K. The Arabin cervical pessary for the prevention of preterm birth in twin-to-twin transfusion syndrome treated by fetoscopic laser coagulation: a multicenter randomized controlled trial. Am J Obstet Gynecol 2023:S0002-9378(23)02059-8. [PMID: 38036166 DOI: 10.1016/j.ajog.2023.11.1245] [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: 07/10/2023] [Revised: 11/08/2023] [Accepted: 11/12/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND Miscarriage and preterm birth are leading causes of loss and disability in monochorionic twins after laser treatment of twin-twin transfusion syndrome. OBJECTIVE This study aimed to investigate the use of cervical pessary to reduce preterm birth before 32 weeks of gestation in monochorionic diamniotic twin pregnancies after fetal surgery for twin-twin transfusion syndrome. STUDY DESIGN In this open-label multicenter randomized trial, pregnant women carrying monochorionic diamniotic twins requiring fetoscopic laser coagulation for twin-twin transfusion syndrome were randomly assigned in a 1:1 ratio to pessary placement or conservative management. The primary outcome was birth before 32 weeks of gestation. The secondary outcomes were birth before 28, 30, 34, or 37 weeks of gestation; preterm premature rupture of membranes; fetal and neonatal survival; and a composite of maternal and neonatal complications. The estimated sample size was 364 patients, with 182 cases in each arm of the study. The analysis was performed according to the intention-to-treat principle. Moreover, 2 interim analyses were planned. RESULTS The trial was stopped prematurely after the first planned interim analysis for futility. Overall, 137 women were included in the analysis, 67 in the pessary group and 70 in the conservative management group. Preterm birth before 32 weeks of gestation occurred in 27 of 67 women (40.3%) in the pessary group and in 25 of 70 women (35.7%) in the conservative management group (adjusted odds ratio, 1.19; 95% confidence interval, 0.58-2.47; P=.63). No differences between groups was observed in the rate of deliveries before 28, 30, 34, and 37 weeks of gestation. Overall survival to delivery was 91.2% (125/137) for at least 1 twin, and 70.8% (97/137) for both twins, with no difference between groups. Neonatal survival at 30 days was 76.5% (208/272). There was no difference between the groups in maternal or neonatal morbidity. CONCLUSION In monochorionic diamniotic twin pregnancies requiring fetal therapy for twin-twin transfusion syndrome, routine use of cervical pessary did not reduce the rate of preterm birth before 32 weeks of gestation.
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Affiliation(s)
- Carlota Rodo
- Maternal-Fetal Medicine Unit, Department of Obstetrics, Vall d'Hebron Institut de Recerca, Vall d'Hebron Hospital Universitari, Barcelona, Spain.
| | - Nerea Maiz
- Maternal-Fetal Medicine Unit, Department of Obstetrics, Vall d'Hebron Institut de Recerca, Vall d'Hebron Hospital Universitari, Barcelona, Spain.
| | - Silvia Arevalo
- Maternal-Fetal Medicine Unit, Department of Obstetrics, Vall d'Hebron Institut de Recerca, Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - Liesbeth Lewi
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium; Department of Development and Regeneration, Biomedical Sciences, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Isabel Couck
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
| | - Bettina Hollwitz
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ioannis Kyvernitakis
- Department of Obstetrics and Prenatal Medicine, Asklepios Klinik Barmbek, Hamburg, Germany
| | - Elena Carreras
- Maternal-Fetal Medicine Unit, Department of Obstetrics, Vall d'Hebron Institut de Recerca, Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - Kurt Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Creswell L, Burke B, O'Sullivan L, Lindow SW, O'Gorman N. A cross-sectional survey of women's views and preferences for preterm birth screening and treatment. Eur J Obstet Gynecol Reprod Biol 2023; 290:14-21. [PMID: 37713943 DOI: 10.1016/j.ejogrb.2023.09.005] [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: 08/15/2023] [Revised: 09/04/2023] [Accepted: 09/09/2023] [Indexed: 09/17/2023]
Abstract
OBJECTIVES Primary outcomes were to determine; 1) the desire for more patient information from healthcare professionals on preterm birth (PTB) prevention 2) the desire for PTB screening surveillance or participation in research or 3) the acceptability of transvaginal ultrasound (TVUS) or vaginal examinations to predict spontaneous PTB. METHODS A 19-question, piloted, self-administered survey was completed by unselected pregnant women in a tertiary maternity hospital in Dublin, Ireland. Data was collected to include maternal socio-demographics, past obstetric history, and current pregnancy details, in addition to views and preferences on PTB screening and preventative treatments. Statistical analysis to include binary and multinomial regression was performed by IBM SPSS Statistics for Windows (Version 29.0). RESULTS 277 women completed the study survey. 9.4% of women had attended the preterm birth surveillance clinic (PSC). 75.1% of respondents indicated a preference for more information from healthcare professionals about PTB. 65% reported that TVUS and vaginal examinations were acceptable in pregnancy. The acceptability of antenatal examinations was significantly influenced by ethnicity; white European (OR 2.58, CI 1.12-5.95, p = 0.003) and Asian (OR 3.39, CI 1.18-9.67, p = 0.02). Discomfort (25.3%) and vaginal bleeding (11.9%) were the most frequently reported concerns about TVUS. 95.7% of unselected women indicated that they would accept treatment to prevent PTB. Vaginal progesterone (53.8%) was preferred treatment compared to cervical cerclage (15.9%) or cervical pessary (16.6%). 55.6% of respondents stated they attend or wish to attend for additional appointments or research opportunities for PTB screening. Women with a previous PTB or second trimester miscarriage were more likely to attend or wish to attend for PTB screening (OR 3.23, CI 1.34-7.79, p = 0.009). CONCLUSION PTB is an important healthcare priority for pregnant women in Ireland. However, women require more information, counselling and reassurance about the utility and safety of TVUS in PSCs.
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Affiliation(s)
| | - B Burke
- The Coombe Hospital, Dublin, Ireland
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Yoshida K. Bioengineering and the cervix: The past, current, and future for addressing preterm birth. Curr Res Physiol 2023; 6:100107. [PMID: 38107784 PMCID: PMC10724223 DOI: 10.1016/j.crphys.2023.100107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/23/2023] [Accepted: 09/20/2023] [Indexed: 12/19/2023] Open
Abstract
The uterine cervix plays two important but opposing roles during pregnancy - as a mechanical barrier that maintains the fetus for nine months and as a compliant structure that dilates to allow for the delivery of a baby. In some pregnancies, however, the cervix softens and dilates prematurely, leading to preterm birth. Bioengineers have addressed and continue to address the lack of reduction in preterm birth rates by developing novel technologies to diagnose, prevent, and understand premature cervical remodeling. This article highlights these existing and emerging technologies and concludes with open areas of research related to the cervix and preterm birth that bioengineers are currently well-positioned to address.
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Affiliation(s)
- Kyoko Yoshida
- Department of Biomedical Engineering, University of Minnesota, 7-105 Nils Hasselmo Hall, 312 Church Street SE, Minneapolis, MN, 55455, USA
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Berger R, Abele H, Bahlmann F, Doubek K, Felderhoff-Müser U, Fluhr H, Garnier Y, Grylka-Baeschlin S, Hayward A, Helmer H, Herting E, Hoopmann M, Hösli I, Hoyme U, Kunze M, Kuon RH, Kyvernitakis I, Lütje W, Mader S, Maul H, Mendling W, Mitschdörfer B, Nothacker M, Olbertz D, Ramsell A, Rath W, Roll C, Schlembach D, Schleußner E, Schütz F, Seifert-Klauss V, Stubert J, Surbek D. Prevention and Therapy of Preterm Birth. Guideline of the DGGG, OEGGG and SGGG (S2k Level, AWMF Registry Number 015/025, September 2022) - Part 2 with Recommendations on the Tertiary Prevention of Preterm Birth and on the Management of Preterm Premature Rupture of Membranes. Geburtshilfe Frauenheilkd 2023; 83:569-601. [PMID: 37169014 PMCID: PMC10166648 DOI: 10.1055/a-2044-0345] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 01/22/2023] [Indexed: 05/13/2023] Open
Abstract
Aim The revision of this guideline was coordinated by the German Society for Gynecology and Obstetrics (DGGG), the Austrian Society for Gynecology and Obstetrics (OEGGG) and the Swiss Society for Gynecology and Obstetrics (SGGG). The aim of the guideline is to improve the prediction, prevention and management of preterm birth based on evidence from the current literature, the experience of members of the guidelines commission, and the viewpoint of self-help organizations. Methods The members of the contributing professional societies and organizations developed recommendations and statements based on international literature. The recommendations and statements were presented and adopted using a formal process (structured consensus conferences with neutral moderation, written Delphi vote). Recommendations Part 2 of this short version of the guideline presents statements and recommendations on the tertiary prevention of preterm birth and the management of preterm premature rupture of membranes.
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Affiliation(s)
- Richard Berger
- Frauenklinik, Marienhaus Klinikum Neuwied, Neuwied, Germany
| | - Harald Abele
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Franz Bahlmann
- Frauenklinik, Bürgerhospital Frankfurt, Frankfurt am Main, Germany
| | | | - Ursula Felderhoff-Müser
- Klinik für Kinderheilkunde I/Perinatalzentrum, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Herbert Fluhr
- Frauenklinik, Universitätsklinikum Graz, Graz, Austria
| | - Yves Garnier
- Frauenklinik, Klinikum Osnabrück, Osnabrück, Germany
| | - Susanne Grylka-Baeschlin
- Zürcher Hochschule für angewandte Wissenschaften, Institut für Hebammenwissenschaft und reproduktive Gesundheit, Zürich, Switzerland
| | | | - Hanns Helmer
- Universitätsklinik für Frauenheilkunde, Medizinische Universität Wien, Wien, Austria
| | - Egbert Herting
- Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Markus Hoopmann
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Irene Hösli
- Frauenklinik, Universitätsspital Basel, Basel, Switzerland
| | - Udo Hoyme
- Frauenklinik, Ilm-Kreis-Kliniken, Arnstadt, Germany
| | - Mirjam Kunze
- Frauenklinik, Universitätsklinikum Freiburg, Freiburg, Germany
| | - Ruben-H. Kuon
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | - Wolf Lütje
- Frauenklinik, Evangelisches Amalie Sieveking-Krankenhaus Hamburg, Hamburg, Germany
| | - Silke Mader
- European Foundation for the Care of Newborn Infants, München, Germany
| | - Holger Maul
- Frauenklinik, Asklepios Kliniken Hamburg, Hamburg, Germany
| | - Werner Mendling
- Frauenklinik, Helios Universitätsklinikum Wuppertal, Wuppertal, Germany
| | | | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften, Berlin
| | - Dirk Olbertz
- Klinik für Neonatologie, Klinikum Südstadt Rostock, Rostock, Germany
| | | | - Werner Rath
- Emeritus, Universitätsklinikum Aachen, Aachen, Germany
| | - Claudia Roll
- Vestische Kinder- und Jugendklinik Datteln, Universität Witten/Herdecke, Datteln, Germany
| | - Dietmar Schlembach
- Klinik für Geburtsmedizin, Klinikum Neukölln/Berlin Vivantes Netzwerk für Gesundheit, Berlin, Germany
| | | | - Florian Schütz
- Frauenklinik, Diakonissen-Stiftungs-Krankenhaus Speyer, Speyer, Germany
| | | | | | - Daniel Surbek
- Universitätsklinik für Frauenheilkunde, Inselspital Bern, Universität Bern, Bern, Switzerland
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Impis Oglou M, Tsakiridis I, Mamopoulos A, Kalogiannidis I, Athanasiadis A, Dagklis T. Cervical length screening for predicting preterm birth: A comparative review of guidelines. JOURNAL OF CLINICAL ULTRASOUND : JCU 2023; 51:472-478. [PMID: 36170160 DOI: 10.1002/jcu.23354] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/24/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
A cervical length (CL) assessment may predict preterm birth (PTB). This study aimed to analyze and compare the recommendations of guidelines on the role of CL in the prediction of PTB. There is no consensus regarding universal screening of asymptomatic women without a history of prior spontaneous PTB (sPTB), using CL. On the other hand, CL assessment is recommended in cases with a history of sPTB due to the high recurrence rate. Finally, there is discrepancy regarding CL assessment in asymptomatic women with multiple pregnancy. Although far from perfect, CL measurement remains the best available method to predict PTB.
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Affiliation(s)
- Mechmet Impis Oglou
- Third Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Tsakiridis
- Third Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Apostolos Mamopoulos
- Third Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Kalogiannidis
- Third Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Apostolos Athanasiadis
- Third Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Themistoklis Dagklis
- Third Department of Obstetrics and Gynaecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Wennerholm UB, Bergman L, Kuusela P, Ljungström E, Möller AC, Hongslo Vala C, Ekelund AC, Liljegren A, Petzold M, Sjögren P, Svensson M, Strandell A, Jacobsson B. Progesterone, cerclage, pessary, or acetylsalicylic acid for prevention of preterm birth in singleton and multifetal pregnancies - A systematic review and meta-analyses. Front Med (Lausanne) 2023; 10:1111315. [PMID: 36936217 PMCID: PMC10015499 DOI: 10.3389/fmed.2023.1111315] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/06/2023] [Indexed: 03/05/2023] Open
Abstract
Background Preterm birth is the leading cause of childhood mortality and morbidity. We aimed to provide a comprehensive systematic review on randomized controlled trials (RCTs) on progesterone, cerclage, pessary, and acetylsalicylic acid (ASA) to prevent preterm birth in asymptomatic women with singleton pregnancies defined as risk of preterm birth and multifetal pregnancies. Methods Six databases (including PubMed, Embase, Medline, the Cochrane Library) were searched up to February 2022. RCTs published in English or Scandinavian languages were included through a consensus process. Abstracts and duplicates were excluded. The trials were critically appraised by pairs of reviewers. The Cochrane risk-of-bias tool was used for risk of bias assessment. Predefined outcomes including preterm birth, perinatal/neonatal/maternal mortality and morbidity, were pooled in meta-analyses using RevMan 5.4, stratified for high and low risk of bias trials. The certainty of evidence was assessed using the GRADE approach. The systematic review followed the PRISMA guideline. Results The search identified 2,309 articles, of which 87 were included in the assessment: 71 original RCTs and 16 secondary publications with 23,886 women and 32,893 offspring. Conclusions were based solely on trials with low risk of bias (n = 50).Singleton pregnancies: Progesterone compared with placebo, reduced the risk of preterm birth <37 gestational weeks: 26.8% vs. 30.2% (Risk Ratio [RR] 0.82 [95% Confidence Interval [CI] 0.71 to 0.95]) (high certainty of evidence, 14 trials) thereby reducing neonatal mortality and respiratory distress syndrome. Cerclage probably reduced the risk of preterm birth <37 gestational weeks: 29.0% vs. 37.6% (RR 0.78 [95% CI 0.69 to 0.88]) (moderate certainty of evidence, four open trials). In addition, perinatal mortality may be reduced by cerclage. Pessary did not demonstrate any overall effect. ASA did not affect any outcome, but evidence was based on one underpowered study.Multifetal pregnancies: The effect of progesterone, cerclage, or pessary was minimal, if any. No study supported improved long-term outcome of the children. Conclusion Progesterone and probably also cerclage have a protective effect against preterm birth in asymptomatic women with a singleton pregnancy at risk of preterm birth. Further trials of ASA are needed. Prevention of preterm birth requires screening programs to identify women at risk of preterm birth. Systematic Review Registration [https://www.crd.york.ac.uk/prospero/], identifier [CRD42021234946].
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Affiliation(s)
- Ulla-Britt Wennerholm
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lina Bergman
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Obstetrics and Gynecology, Stellenbosch University, Cape Town, South Africa
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Pihla Kuusela
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, Södra Älvsborg Hospital, Department of Obstetrics and Gynecology, Borås, Sweden
| | - Elin Ljungström
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden
| | - Anna C. Möller
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden
| | | | - Ann-Catrin Ekelund
- Region Västra Götaland, Skaraborg Hospital, Medical Library, Skövde, Sweden
| | - Ann Liljegren
- Region Västra Götaland, Sahlgrenska University Hospital, Medical Library, Gothenburg, Sweden
| | - Max Petzold
- School of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | | | - Mikael Svensson
- Department of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Annika Strandell
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, HTA-centrum, Gothenburg, Sweden
| | - Bo Jacobsson
- Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Genetics and Bioinformatics, Division of Health Data and Digitalization, Institute of Public Health, Oslo, Norway
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Khalil A, Prasad S. Screening and prevention of preterm birth in twin pregnancies. Best Pract Res Clin Obstet Gynaecol 2022; 84:179-193. [DOI: 10.1016/j.bpobgyn.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 08/29/2022] [Indexed: 11/02/2022]
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Mei-Dan E, Jain V, Melamed N, Lim KI, Aviram A, Ryan G, Barrett J. Directive clinique no 428 : Prise en charge de la grossesse gémellaire bichoriale. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2022; 44:835-851.e1. [DOI: 10.1016/j.jogc.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mei-Dan E, Jain V, Melamed N, Lim KI, Aviram A, Ryan G, Barrett J. Guideline No. 428: Management of Dichorionic Twin Pregnancies. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2022; 44:819-834.e1. [PMID: 35798461 DOI: 10.1016/j.jogc.2022.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To review evidence-based recommendations for the management of dichorionic twin pregnancies. TARGET POPULATION Pregnant women with a dichorionic twin pregnancy. BENEFITS, HARMS, AND COSTS Implementation of the recommendations in this guideline may improve the management of twin pregnancies and reduce neonatal and maternal morbidity and mortality. EVIDENCE Published literature was retrieved through searches of PubMed and the Cochrane Library using appropriate controlled vocabulary (e.g., twin, preterm birth). Results were restricted to systematic reviews, randomized controlled trials, controlled clinical trials, and observational studies. There were no date limits, but results were limited to English- or French-language materials. VALIDATION METHODS The content and recommendations were drafted and agreed upon by the principal authors. The Board of the SOGC approved the final draft for publication. The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. See online Appendix A (Tables A1 for definitions and A2 for interpretations of strong and weak recommendations). INTENDED AUDIENCE Obstetricians, family physicians, nurses, midwives, maternal-fetal medicine specialists, radiologists, and other health care providers who care for women with twin pregnancies. SUMMARY STATEMENTS RECOMMENDATIONS.
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Mol BW. Comment on Abdel Wahab et al.: A randomized controlled trial of two-doses of vaginal progesterone 400 vs. 200 mg for prevention of preterm labor in twin gestations. J Perinat Med 2022; 50:367-368. [PMID: 35041779 DOI: 10.1515/jpm-2021-0524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 11/25/2021] [Indexed: 11/15/2022]
Affiliation(s)
- Ben W Mol
- Department of Obstetrics and Gynaecology, Monash University & Monash Medical Centre. 246 Clayton Rd, Clayton, VIC 3168 Australia
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Groussolles M, Winer N, Sentilhes L, Biquart F, Massoud M, Vivanti AJ, Bouchghoul H, Rozenberg P, Olivier P, Desbriere R, Chauleur C, Perrotin F, Coatleven F, Fuchs F, Bretelle F, Tsatsaris V, Salomon LJ, Sananes N, Kayem G, Houflin-Debarge V, Schmitz T, Benoist G, Arnaud C, Ehlinger V, Vayssière C. Arabin pessary to prevent adverse perinatal outcomes in twin pregnancies with a short cervix: a multicenter randomized controlled trial (PESSARONE). Am J Obstet Gynecol 2022; 227:271.e1-271.e13. [PMID: 35123930 DOI: 10.1016/j.ajog.2022.01.038] [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] [Received: 10/03/2021] [Revised: 01/17/2022] [Accepted: 01/28/2022] [Indexed: 11/01/2022]
Abstract
BACKGROUND The number of twin pregnancies continues to increase worldwide as both the number of pregnancies obtained by medically assisted reproduction and age at first pregnancy keep rising. Preterm delivery is the major complication associated with twin pregnancies. The effectiveness of preventive treatments such as progesterone or cervical cerclage for women with a short cervix is doubtful in twin pregnancies. The effectivity of cervical pessaries in preventing preterm birth and its associated morbidity and mortality is also controversial. OBJECTIVE We sought to investigate if the Arabin pessary reduces adverse neonatal outcomes in twin pregnancies with a short cervix. STUDY DESIGN This open-label, multicenter, randomized controlled trial on twin pregnancies with a cervical length of <35 mm compared pessary placement at 16+0 to 24+0 weeks' gestation with standard care alone. The primary endpoint was a composite of adverse neonatal outcomes, namely peripartum or neonatal death or significant neonatal morbidity before hospital discharge, defined as at least 1 of the following complications: bronchopulmonary dysplasia, intraventricular hemorrhage grade III to IV, periventricular leukomalacia, necrotizing enterocolitis grade II or higher, culture-proven sepsis, and retinopathy requiring treatment. A sample size of 308 pregnancies was planned to ensure 80% power to compare the proportions of women with at least 1 infant with an adverse neonatal outcome. The intention-to-treat analysis after multiple imputation of missing data, was supplemented with a secondary analysis that controlled for gestational age and cervical length, both at inclusion. The primary endpoint was also compared between randomization groups in the per-protocol population, which excluded patients with prespecified major protocol violations (mostly cervical cerclage and/or progesterone after inclusion). Secondary endpoints included preterm birth, spontaneous preterm birth, and pessary side effects. RESULTS In total, 315 women were randomized to either receive a pessary (n=157) or standard management (n=158). Overall, 10.8% (34 women) of participants had a missing value for the primary endpoint, mostly (79%) because of the lack of paternal consent for neonatal data collection. In the intention-to-treat analysis, the adverse neonatal outcome occurred in 16.8% of the pessary group vs in 22.5% of the control group (risk ratio, 0.69; 95% confidence interval, 0.39-1.23; P=.210). The per-protocol analysis did not show any significant difference between groups (risk ratio, 0.78; 95% confidence interval, 0.47-1.28; P=.320). The occurrence of preterm birth or spontaneous preterm birth did not differ significantly between groups. No serious side effects were associated with pessary use. CONCLUSION Pessary use in our study did not significantly reduce adverse neonatal outcomes in twin pregnancies with a short cervix.
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Seravalli V, Strambi N, D’Arienzo A, Magni F, Bernardi L, Morucchio A, Di Tommaso M. Patient’s experience with the Arabin cervical pessary during pregnancy: A questionnaire survey. PLoS One 2022; 17:e0261830. [PMID: 35020768 PMCID: PMC8754293 DOI: 10.1371/journal.pone.0261830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 12/11/2021] [Indexed: 11/18/2022] Open
Abstract
Introduction
The cervical pessary is used in women with precocious cervical ripening to prevent preterm birth. Up to now however, there have been no systematic studies on compliance and tolerance, which vary among different study cohorts.
Material and methods
A questionnaire was administered to 166 women treated with the Arabin cervical pessary in one center. Data were analysed about the patient’s experience before insertion (adequacy of information received), during treatment (follow-up, impact on daily life, perceived discomfort, side effects) and at the time of removal (pain, if the patient’s expectations had been met regarding the treatment).
Results
Information received before the insertion of the Arabin cervical pessary was considered adequate in 163/166 (98.2%) women. An increase in vaginal discharge was experienced by 70/166 (42.2%) women. Discomfort or other side effects were reported in 13.8% and 16.3% of cases, respectively. Overall, 77% of women reported an improved quality of life and 94% considered the follow-up during pregnancy adequate. Removal was moderately painful for 58/166 (35%) of women. Patient’s expectations regarding the treatment were exceeded in the majority of cases (75.3%). In a final step, we compared our results to previous studies regarding the use of the pessary in singleton and twin pregnancies.
Conclusion
Although some trials report high rates of non-compliant patients, this could not be confirmed by our study. In contrast, most women reported having a positive experience and that they were motivated to continue the treatment when they were continuously followed by experienced clinicians.
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Affiliation(s)
- Viola Seravalli
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Noemi Strambi
- Department of Health Sciences, University of Florence, Florence, Italy
| | | | - Francesco Magni
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Ludovico Bernardi
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Anna Morucchio
- Department of Health Sciences, University of Florence, Florence, Italy
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Pessary Plus Progesterone to Prevent Preterm Birth in Women With Short Cervixes: A Randomized Controlled Trial. Obstet Gynecol 2022; 139:41-51. [PMID: 34856583 DOI: 10.1097/aog.0000000000004634] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/16/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To test the effectiveness of cervical pessary in addition to vaginal progesterone for the prevention of preterm birth in women with midpregnancy short cervixes. METHODS We performed a multicenter, open-label, randomized controlled trial in 17 perinatal centers. Asymptomatic women with singleton or twin pregnancies and cervical lengths of 30 mm or less, measured at 18 0/7-22 6/7 weeks of gestation, were randomized to cervical pessary plus vaginal progesterone (pessary plus progesterone group) or vaginal progesterone only (progesterone-only group) (200 mg/day). Treatments were used from randomization to 36 weeks of gestation or delivery. The primary outcome was a composite of neonatal mortality and morbidity. Secondary outcomes were delivery before 37 weeks and before 34 weeks of gestation. Analysis was performed according to intention to treat. RESULTS Between July 9, 2015, and March 29, 2019, 8,168 women were screened, of whom 475 were randomized to pessary and 461 to progesterone only. The composite perinatal outcome occurred in 19.2% (89/463) of the women in the pessary group compared with 20.9% (91/436) of the women in the progesterone-only group (adjusted risk ratio [aRR] 0.88, 95% CI 0.69-1.12). Delivery rates before 37 weeks of gestation were 29.1% compared with 31.4% (aRR 0.86, 95% CI 0.72-1.04); delivery rates before 34 weeks were 9.9% compared with 13.9% (aRR 0.66, 95% CI 0.47-0.93). Women in the pessary group had more vaginal discharge (51.6% [245/476] vs 25.4% [117/479] [P<.001]), pain (33.1% [157/476] vs 24.1% [111/479] [P=.002]), and vaginal bleeding (9.7% [46/476] vs 4.8% [22/479] [P=.004]). CONCLUSION In asymptomatic women with short cervixes, the combination of pessary and progesterone did not decrease rates of neonatal morbidity or mortality when compared with progesterone only. CLINICAL TRIAL REGISTRATION Brazilian Clinical Trial Registry (ReBec), UTN:U1111-1164-2636.
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Schnettler W, Manoharan S, Smith K. Transvaginal Sonographic Assessment Following Cervical Pessary Placement for Preterm Birth Prevention. AJP Rep 2022; 12:e80-e88. [PMID: 35141041 PMCID: PMC8816641 DOI: 10.1055/s-0041-1742273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/08/2021] [Indexed: 11/03/2022] Open
Abstract
Background Transvaginal sonographic cervical length assessment identifies pregnant women at risk for preterm birth, and the subsequent placement of a cervical pessary may reduce this risk. The mechanism of action remains uncertain, and postplacement transvaginal sonography may provide further insight into the controversial efficacy of this therapy. Objective To identify any pre- or postplacement sonographic findings associated with preterm delivery following cervical pessary insertion among at-risk women. Materials and Methods This retrospective cohort study utilized electronic medical record and imaging review of all women identified within a large tertiary care health system having undergone cervical pessary placement for preterm birth risk reduction and subsequently delivered between January 2013 (the adoption of this therapeutic option in our system) and March 2017. Indications for cervical pessary placement were guided by maternal-fetal medicine consultation and required a functional cervical length measurement on transvaginal sonography of 25 mm or less. Criteria for initial transvaginal cervical assessment included obstetric history, multiple gestation, and current concern on transabdominal imaging for cervical shortening. All pre- and postplacement transvaginal sonographic measurements were determined for study purposes by re-review of each patient's images by a single author blinded to outcome. Results A total of 88 women were identified as having undergone cervical pessary placement for preterm birth prevention, and 52 yielded complete delivery and imaging data for inclusion. As expected, this was a high-risk population with 51.9% carrying multiple gestations, 32.7% with a history of prior preterm birth, and 11.6% with a history of cervical conization. Although previously hypothesized to represent the mechanism of action, neither the change in uterocervical or intracervical angle was associated with gestational age at delivery. Alternatively, preplacement imaging measurements of cervical funneling, anterior cervical length, and cervical diameter were significantly associated with appropriate pessary placement and decreased preterm birth. Forty-two subjects (80.8%) demonstrated both the anterior and posterior aspects of the cervix within the pessary (appropriate placement) and 95.2% of these subjects demonstrated cervical funneling on initial imaging compared with 25% of those with inappropriate placement ( p = 0.002). Anterior cervical length less than 20 mm and cervical diameter less than 33 mm were associated with preterm delivery less than 28 weeks (16.7 vs. 0%, p = 0.039), and anterior cervical length less than 20 mm was associated with preterm delivery less than 32 weeks (41.7 vs. 10.7%, p = 0.025). Cervical diameter less than 33 mm correlated with an "inappropriately placed" pessary among 83.3% in comparison to 48.7% ( p = 0.048) of women with a cervical diameter less than 33 mm. Significant associations were noted between postplacement functional cervical length measurements and preplacement anterior cervical length ( p = 0.001) and cervical diameter ( p = 0.012). Conclusion Contrary to current thinking, no significant changes in uterocervical and intracervical angle following cervical pessary placement were identified. However, preplacement sonographic measurement of funneling, anterior cervical length, and cervical diameter are predictive of appropriate pessary placement and extreme preterm birth. These may represent markers for candidacy of cervical pessary placement. Postplacement transvaginal sonography represents an important tool to assess potential efficacy of this therapeutic modality, and further investigation of these factors is warranted.
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Affiliation(s)
- William Schnettler
- Department of Obstetrics and Gynecology, TriHealth-Good Samaritan Hospital, Cincinnati, Ohio.,Division of Maternal-Fetal Medicine, TriHealth-Good Samaritan Hospital, Cincinnati, Ohio
| | - Shwetha Manoharan
- Department of Obstetrics and Gynecology, TriHealth-Good Samaritan Hospital, Cincinnati, Ohio
| | - Kate Smith
- Department of Obstetrics and Gynecology, TriHealth-Good Samaritan Hospital, Cincinnati, Ohio.,Division of Maternal-Fetal Medicine, TriHealth-Good Samaritan Hospital, Cincinnati, Ohio
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Roman A, Ramirez A, Fox NS. Prevention of preterm birth in twin pregnancies. Am J Obstet Gynecol MFM 2021; 4:100551. [PMID: 34896357 DOI: 10.1016/j.ajogmf.2021.100551] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 11/01/2021] [Accepted: 12/03/2021] [Indexed: 11/16/2022]
Abstract
Twins represent 3.2% of all livebirth, however they account for 20% of all preterm deliveries, with 60% of then deliver before 37 weeks, and 10.7% before 32 weeks. Twin pregnancies have five times higher risk of early neonatal and infant death related to prematurity. Monochorionic twins have higher incidence of both indicated and spontaneous preterm delivery compared with dichorionic twins. Transvaginal cervical length before 24 weeks is the best tool to predict preterm birth, independent of other risk factors. Among all the evaluated therapies to decrease or prevent preterm birth in twin pregnancies, vaginal progesterone in women with transvaginal cervical length < 25mm decreased neonatal morbidity and physical exam indicated cerclage in women with cervical dilation > 1 cm have shown a significant decrease in preterm birth at different gestational ages and decreased perinatal mortality.
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Affiliation(s)
- Amanda Roman
- Maternal Fetal Medicine Division, Obstetrics and Gynecology Department, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States.
| | - Alexandra Ramirez
- Maternal Fetal Medicine Division, Obstetrics and Gynecology Department, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States.
| | - Nathan S Fox
- Maternal Fetal Medicine Associates, PLLC, and The Department of Obstetrics, Gynecology, and Reproductive Science, Icahn School of Medicine at Mount Sinai, 70 East 90th Street, New York, NY 10128, USA.
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23
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Prediction and Prevention of Spontaneous Preterm Birth: ACOG Practice Bulletin, Number 234. Obstet Gynecol 2021; 138:e65-e90. [PMID: 34293771 DOI: 10.1097/aog.0000000000004479] [Citation(s) in RCA: 151] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Indexed: 12/30/2022]
Abstract
Preterm birth is among the most complex and important challenges in obstetrics. Despite decades of research and clinical advancement, approximately 1 in 10 newborns in the United States is born prematurely. These newborns account for approximately three-quarters of perinatal mortality and more than one half of long-term neonatal morbidity, at significant social and economic cost (1-3). Because preterm birth is the common endpoint for multiple pathophysiologic processes, detailed classification schemes for preterm birth phenotype and etiology have been proposed (4, 5). In general, approximately one half of preterm births follow spontaneous preterm labor, about a quarter follow preterm prelabor rupture of membranes (PPROM), and the remaining quarter of preterm births are intentional, medically indicated by maternal or fetal complications. There are pronounced racial disparities in the preterm birth rate in the United States. The purpose of this document is to describe the risk factors, screening methods, and treatments for preventing spontaneous preterm birth, and to review the evidence supporting their roles in clinical practice. This Practice Bulletin has been updated to include information on increasing rates of preterm birth in the United States, disparities in preterm birth rates, and approaches to screening and prevention strategies for patients at risk for spontaneous preterm birth.
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Norman JE, Norrie J, MacLennan G, Cooper D, Whyte S, Chowdhry S, Cunningham-Burley S, Neilson AR, Mei XW, Smith JB, Shennan A, Robson SC, Thornton S, Kilby MD, Marlow N, Stock SJ, Bennett PR, Denton J. The Arabin pessary to prevent preterm birth in women with a twin pregnancy and a short cervix: the STOPPIT 2 RCT. Health Technol Assess 2021; 25:1-66. [PMID: 34219633 DOI: 10.3310/hta25440] [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: 11/22/2022] Open
Abstract
BACKGROUND Preterm birth is common in twins and accounts for significant mortality and morbidity. There are no effective preventative treatments. Some studies have suggested that, in twin pregnancy complicated by a short cervix, the Arabin pessary, which fits around the cervix and can be inserted as an outpatient procedure, reduces preterm birth and prevents neonatal morbidity. OBJECTIVE STOPPIT 2 aimed to evaluate the clinical utility of the Arabin cervical pessary in preventing preterm birth in women with a twin pregnancy and a short cervix. DESIGN STOPPIT 2 was a pragmatic, open label, multicentre randomised controlled trial with two treatment group - the Arabin pessary plus standard care (intervention) and standard care alone (control). Participants were initially recruited into the screening phase of the study, when cervical length was measured. Women with a measured cervical length of ≤ 35 mm were then recruited into the treatment phase of the study. An economic evaluation considered cost-effectiveness and a qualitative substudy explored the experiences of participants and clinicians. SETTING Antenatal clinics in the UK and elsewhere in Europe. PARTICIPANTS Women with twin pregnancy at < 21 weeks' gestation with known chorionicity and gestation established by scan at ≤ 16 weeks' gestation. INTERVENTIONS Ultrasound scan to establish cervical length. Women with a cervical length of ≤ 35 mm at 18+ 0-20+ 6 weeks' gestation were randomised to standard care or Arabin pessary plus standard care. Randomisation was performed by computer and accessed through a web-based browser. MAIN OUTCOME MEASURES Obstetric - all births before 34+ 0 weeks' gestation following the spontaneous onset of labour; and neonatal - composite of adverse outcomes, including stillbirth or neonatal death, periventricular leukomalacia, early respiratory morbidity, intraventricular haemorrhage, necrotising enterocolitis or proven sepsis, all measured up to 28 days after the expected date of delivery. RESULTS A total of 2228 participants were recruited to the screening phase, of whom 2170 received a scan and 503 were randomised: 250 to Arabin pessary and 253 to standard care alone. The rate of the primary obstetric outcome was 18.4% (46/250) in the intervention group and 20.6% (52/253) in the control group (adjusted odds ratio 0.87, 95% confidence interval 0.55 to 1.38; p = 0.54). The rate of the primary neonatal outcome was 13.4% (67/500) and 15.0% (76/506) in the intervention group and control group, respectively (adjusted odds ratio 0.86, 95% confidence interval 0.54 to 1.36; p = 0.52). The pessary was largely well tolerated and clinicians found insertion and removal 'easy' or 'fairly easy' in the majority of instances. The simple costs analysis showed that pessary treatment is no more costly than standard care. LIMITATIONS There was the possibility of a type II error around smaller than anticipated benefit. CONCLUSIONS In this study, the Arabin pessary did not reduce preterm birth or adverse neonatal outcomes in women with a twin pregnancy and a short cervix. The pessary either is ineffective at reducing preterm birth or has an effect size of < 0.4. FUTURE WORK Women with twin pregnancy remain at risk of preterm birth; work is required to find treatments for this. TRIAL REGISTRATION Current Controlled Trials ISRCTN98835694 and ClinicalTrials.gov NCT02235181. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 44. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Jane E Norman
- Faculty of Health Sciences, University of Bristol, Bristol, UK
| | - John Norrie
- Edinburgh Clinical Trials Unit, University of Edinburgh, Edinburgh, UK
| | - Graeme MacLennan
- Centre for Healthcare Randomised Trials, University of Aberdeen, Aberdeen, UK
| | - David Cooper
- Centre for Healthcare Randomised Trials, University of Aberdeen, Aberdeen, UK
| | - Sonia Whyte
- Tommy's Centre for Maternal and Fetal Health, MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
| | | | | | | | - Xue W Mei
- Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Joel Be Smith
- Health Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Andrew Shennan
- Tommy's London Research Centre, King's College London, London, UK
| | - Stephen C Robson
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Steven Thornton
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mark D Kilby
- Fetal Medicine Centre, Birmingham Women's and Children's NHS Foundation Trust and College of Medical and Dental Science, University of Birmingham, Birmingham, UK
| | - Neil Marlow
- Institute for Women's Health, University College London, London, UK
| | - Sarah J Stock
- Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Philip R Bennett
- Department of Surgery and Cancer, Imperial College London, London, UK
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Monari F, Salerno C, Torcetta F, Po' G, Facchinetti F. Intrapartum stillbirth for sepsis complicating Arabin cervical pessary placement in a twin pregnancy. Minerva Obstet Gynecol 2021; 73:384-387. [PMID: 34008394 DOI: 10.23736/s2724-606x.20.04721-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
There is little evidence regarding the best treatment in case of dilated cervix and exposed membranes in twins. Current options for its management include vaginal progesterone, cervical cerclage and cervical pessary, but none of them had shown effectiveness compared to expectant management. We presented a case of twin pregnancy at 22 6/7 weeks' gestation admitted to the hospital because of cervical insufficiency with bulging of membranes. An Arabin pessary was positioned after a failed attempt of cervical cerclage and no antibiotic was given in absence of signs of infection. Cesarean delivery was performed at 24 weeks' gestation because of spontaneous preterm labor and spontaneous rupture of membranes with the first baby in a transverse lie position. At the uterus section, the first baby was stillborn, with Arabin pessary strictly adherent to his ecchymotic head, while the second baby was born alive. After diagnostic histopathological and microbiological investigations, we hypothesized that the first twin died for funisitis/sepsis and mechanical insult due to the strict adhesion of the pessary to the fetal head. We concluded that in case of bulging membranes and dilated cervix, antibiotic treatment should be evaluated, also in absence of signs/symptoms of infection or suspicion of rupture of the membranes, and pessary insertion should be avoided, namely at second trimester, because of the risk of its dislocation inside the uterus when contractions start and potential hurt to extremely preterm fetus.
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Affiliation(s)
- Francesca Monari
- Unit of Obstetrics and Gynecology, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy -
| | - Cristina Salerno
- Unit of Obstetrics and Gynecology, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesco Torcetta
- Unit of Neonatal, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Gaia Po'
- Unit of Obstetrics and Gynecology, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Fabio Facchinetti
- Unit of Obstetrics and Gynecology, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
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26
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D'Antonio F, Berghella V, Di Mascio D, Saccone G, Sileo F, Flacco ME, Odibo AO, Liberati M, Manzoli L, Khalil A. Role of progesterone, cerclage and pessary in preventing preterm birth in twin pregnancies: A systematic review and network meta-analysis. Eur J Obstet Gynecol Reprod Biol 2021; 261:166-177. [PMID: 33946019 DOI: 10.1016/j.ejogrb.2021.04.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/10/2021] [Accepted: 04/17/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To determine the role of progesterone, pessary and cervical cerclage in reducing the risk of (preterm birth) PTB in twin pregnancies and compare these interventions using pairwise and network meta-analysis. STUDY DESIGN Medline, Embase, CINAHL and Cochrane databases were explored. The inclusion criteria were studies in which twin pregnancies were randomized to an intervention for the prevention of PTB (any type of progesterone, cervical cerclage, cervical pessary, or any combination of these) or to a control group (e.g. placebo or treatment as usual). Interventions of interest were either progesterone [vaginal or oral natural progesterone or intramuscular 17a-hydroxyprogesterone caproate (17-OHPC)], cerclage (McDonald or Shirodkar), or cervical pessary. The primary outcome was PTB < 34 weeks of gestation. Both primary and secondary outcomes were explored in an unselected population of twin pregnancies and in women at higher risk of PTB (defined as those with cervical length <25 mm). Random-effect head-to-head and a multiple-treatment meta-analyses were used to analyze the data and results expressed as risk ratios. RESULTS 26 studies were included in the meta-analysis. When considering an unselected population of twin pregnancies, vaginal progesterone, intra-muscular17-OHPC or pessary did not reduce the risk of PTB < 34 weeks of gestation (all p > 0.05). When stratifying the analysis for spontaneous PTB, neither pessary, vaginal or intramuscular 17-OHPC were associated with a significant reduction in the risk of PTB compared to controls (all p > 0.05), while there was no study on cerclage which explored this outcome in an unselected population of twin pregnancies. When considering twin pregnancies with short cervical length (≤25 mm), there was no contribution of either pessary, vaginal progesterone, intra-muscular 17-OHPC or cerclage in reducing the risk of overall PTB < 34 weeks of gestation. CONCLUSIONS Cervical pessary, progesterone and cerclage do not show a significant effect in reducing the rate of PTB or perinatal morbidity in twins, either when these interventions are applied to an unselected population of twins or in pregnancies with a short cervix.
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Affiliation(s)
- Francesco D'Antonio
- Center for High-Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy.
| | - Vincenzo Berghella
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
| | - Daniele Di Mascio
- Department of Maternal and Child Health and Urological Sciences, Sapienza University of Rome, Italy
| | - Gabriele Saccone
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Filomena Sileo
- Prenatal Medicine Unit, Obstetrics and Gynecology Unit, Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Anthony O Odibo
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of South Florida, Morsani College of Medicine, United States
| | - Marco Liberati
- Center for High-Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy
| | | | - Asma Khalil
- Fetal Medicine Unit, Saint George's University of London, London, United Kingdom; Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, United Kingdom
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27
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Abstract
PURPOSE OF REVIEW Multifetal pregnancy carries increased risk of preterm delivery, and consensus on management options to prevent early birth in this population has not been reached. This review serves to summarize the most contemporary findings on this controversial topic. RECENT FINDINGS Examination-indicated cerclage is effective in reducing preterm birth in twin pregnancies, whereas cerclages for other indications are less convincing. Cervical pessary may be beneficial for patients with a short cervix and in those who have had threatened preterm labor. Progesterone supplementation for multifetal gestation alone is not beneficial, but it can be considered in those with a history of prior singleton preterm birth. SUMMARY Interventions for preterm birth prevention in multiple gestations remain under investigation, and further data is required in order to reach consensus for this high-risk population.
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Affiliation(s)
- Aaron M Dom
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Rochester Medical Center, Rochester, New York, USA
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28
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Norman JE, Norrie J, MacLennan G, Cooper D, Whyte S, Chowdhry S, Cunningham-Burley S, Mei XW, Smith JBE, Shennan A, Robson SC, Thornton S, Kilby MD, Marlow N, Stock SJ, Bennett PR, Denton J. Evaluation of the Arabin cervical pessary for prevention of preterm birth in women with a twin pregnancy and short cervix (STOPPIT-2): An open-label randomised trial and updated meta-analysis. PLoS Med 2021; 18:e1003506. [PMID: 33780463 PMCID: PMC8041194 DOI: 10.1371/journal.pmed.1003506] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 04/12/2021] [Accepted: 03/08/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Preterm-labour-associated preterm birth is a common cause of perinatal mortality and morbidity in twin pregnancy. We aimed to test the hypothesis that the Arabin pessary would reduce preterm-labour-associated preterm birth by 40% or greater in women with a twin pregnancy and a short cervix. METHODS AND FINDINGS We conducted an open-label randomised controlled trial in 57 hospital antenatal clinics in the UK and Europe. From 1 April 2015 to 14 February 2019, 2,228 women with a twin pregnancy underwent cervical length screening between 18 weeks 0 days and 20 weeks 6 days of gestation. In total, 503 women with cervical length ≤ 35 mm were randomly assigned to pessary in addition to standard care (n = 250, mean age 32.4 years, mean cervical length 29 mm, with pessary inserted in 230 women [92.0%]) or standard care alone (n = 253, mean age 32.7 years, mean cervical length 30 mm). The pessary was inserted before 21 completed weeks of gestation and removed at between 35 and 36 weeks or before birth if earlier. The primary obstetric outcome, spontaneous onset of labour and birth before 34 weeks 0 days of gestation, was present in 46/250 (18.4%) in the pessary group compared to 52/253 (20.6%) following standard care alone (adjusted odds ratio [aOR] 0.87 [95% CI 0.55-1.38], p = 0.54). The primary neonatal outcome-a composite of any of stillbirth, neonatal death, periventricular leukomalacia, early respiratory morbidity, intraventricular haemorrhage, necrotising enterocolitis, or proven sepsis, from birth to 28 days after the expected date of delivery-was present in 67/500 infants (13.4%) in the pessary group compared to 76/506 (15.0%) following standard care alone (aOR 0.86 [95% CI 0.54-1.36], p = 0.50). The positive and negative likelihood ratios of a short cervix (≤35 mm) to predict preterm birth before 34 weeks were 2.14 and 0.83, respectively. A meta-analysis of data from existing publications (4 studies, 313 women) and from STOPPIT-2 indicated that a cervical pessary does not reduce preterm birth before 34 weeks in women with a short cervix (risk ratio 0.74 [95% CI 0.50-1.11], p = 0.15). No women died in either arm of the study; 4.4% of babies in the Arabin pessary group and 5.5% of babies in the standard treatment group died in utero or in the neonatal period (p = 0.53). Study limitations include lack of power to exclude a smaller than 40% reduction in preterm labour associated preterm birth, and to be conclusive about subgroup analyses. CONCLUSIONS These results led us to reject our hypothesis that the Arabin pessary would reduce the risk of the primary outcome by 40%. Smaller treatment effects cannot be ruled out. TRIAL REGISTRATION ISRCTN Registry ISRCTN 02235181. ClinicalTrials.gov NCT02235181.
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Affiliation(s)
- Jane E. Norman
- Faculty of Health Sciences, University of Bristol, Bristol, United Kingdom
- * E-mail:
| | - John Norrie
- Edinburgh Clinical Trials Unit, University of Edinburgh, Edinburgh, United Kingdom
| | - Graeme MacLennan
- Centre for Healthcare Randomised Trials, University of Aberdeen, Aberdeen, United Kingdom
| | - David Cooper
- Centre for Healthcare Randomised Trials, University of Aberdeen, Aberdeen, United Kingdom
| | - Sonia Whyte
- Tommy’s Centre for Maternal and Fetal Health, MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
| | - Sue Chowdhry
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Xue W. Mei
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Joel B. E. Smith
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, Oxford, United Kingdom
| | - Andrew Shennan
- Department of Women’s and Children’s Health, King’s College London, London, United Kingdom
| | - Stephen C. Robson
- Institute of Cellular Medicine, University of Newcastle, Newcastle, United Kingdom
| | - Steven Thornton
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Mark D. Kilby
- Fetal Medicine Centre, Birmingham Women’s and Children’s NHS Foundation Trust and College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Neil Marlow
- Elizabeth Garrett Anderson Institute for Women’s Health, University College London, London, United Kingdom
| | - Sarah J. Stock
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Phillip R. Bennett
- Institute for Reproductive and Developmental Biology, Imperial College London, London, United Kingdom
| | - Jane Denton
- Multiple Births Foundation, London, United Kingdom
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29
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Yüksel Şimşek S, Şimşek E, Doğan Durdağ G, Alemdaroğlu S, Baran ŞY, Kalaycı H. Prevention of preterm delivery by cervical cerclage; a comparison of prophylactic and emergency procedures. J Turk Ger Gynecol Assoc 2021; 22:22-28. [PMID: 32517429 PMCID: PMC7944227 DOI: 10.4274/jtgga.galenos.2020.2019.0183] [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] [Indexed: 12/01/2022] Open
Abstract
Objective: Prophylactic or emergency type cervical cerclage procedures are being used for treatment of cervical insufficiency. The aim was to review and compare the outcomes of these cerclage types and identify factors affecting outcomes. Material and Methods: Retrospective review of seventy-five patients in whom transvaginal cervical cerclage procedures were performed over a seven-year period in a tertiary referral center. Results: Twenty seven of 75 (36%) patients were in the emergency cerclage group and 48 (64%) of them were in the prophylactic group. Mean body mass index (BMI), hospitalization time and gestational week at cerclage were significantly higher, whereas latency period was significantly shorter for the emergency group. Mean gestational ages at delivery were 35.6±4.5 and 33.6±5.9 weeks in the prophylactic and emergency groups, respectively (p=0.117). Delivery rates under 34th gestational week were 20.8% and 37.0% in the prophylactic and emergency groups, respectively (p=0.175). Birthweight, and delivery ≥34th gestational week was higher in the prophylactic group, whereas complication rate was higher in the emergency group, but these differences were not significant. High BMI was associated with more deliveries before 34-week in the prophylactic group. Pre-cerclage cervical length was shorter in patients who delivered before 34 gestational weeks at delivery. Conclusion: Prophylactic and emergency cerclage procedures have comparable results regarding gestational week at delivery. High BMI and low pre-cerclage cervical length may have adverse effects on success of cerclage procedures.
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Affiliation(s)
- Seda Yüksel Şimşek
- Clinic of Obstetrics and Gynecology, Başkent University Adana Dr. Turgut Noyan Application and Research Hospital, Ankara, Turkey
| | - Erhan Şimşek
- Clinic of Obstetrics and Gynecology, Başkent University Adana Dr. Turgut Noyan Application and Research Hospital, Ankara, Turkey
| | - Gülşen Doğan Durdağ
- Clinic of Obstetrics and Gynecology, Başkent University Adana Dr. Turgut Noyan Application and Research Hospital, Ankara, Turkey
| | - Songül Alemdaroğlu
- Clinic of Obstetrics and Gynecology, Başkent University Adana Dr. Turgut Noyan Application and Research Hospital, Ankara, Turkey
| | - Şafak Yılmaz Baran
- Clinic of Obstetrics and Gynecology, Başkent University Adana Dr. Turgut Noyan Application and Research Hospital, Ankara, Turkey
| | - Hakan Kalaycı
- Clinic of Obstetrics and Gynecology, Başkent University Adana Dr. Turgut Noyan Application and Research Hospital, Ankara, Turkey
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30
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Mastantuoni E, Saccone G, Gragnano E, Di Spiezio Sardo A, Zullo F, Locci M. Cervical pessary in singleton gestations with arrested preterm labor: a randomized clinical trial. Am J Obstet Gynecol MFM 2021; 3:100307. [PMID: 33422659 DOI: 10.1016/j.ajogmf.2021.100307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/19/2020] [Accepted: 01/04/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Cervical pessary has been proven to be effective in reducing the rate of preterm birth in asymptomatic women with singleton gestations and short cervical length in the midtrimester of pregnancy; however, the efficacy of this device in women with arrested preterm labor is still a subject of debate. OBJECTIVE This study aimed to test the hypothesis that the use of a cervical pessary in women with singleton pregnancy and arrested preterm labor would reduce the risk of preterm birth at <37 weeks of gestation. STUDY DESIGN This study is a parallel group, nonblinded, randomized trial. Participants included in the study were women with a diagnosis of arrested preterm labor between 24 0/7 and 33 6/7 weeks of gestations. The participants were randomized to either the cervical pessary group or no pessary group in a 1:1 ratio. The primary endpoint was preterm birth at <37 weeks of gestation. A sample size of 120 participants was determined, but the trial was concluded before the completion of enrollment. RESULTS A total of 61 women with singleton pregnancies and arrested preterm labor at 24 0/7 to 33 6/7 weeks of gestation were enrolled in the trial. Of the 61 women, 32 were randomized to the cervical pessary group and 29 to the control group. Preterm birth at <37 weeks of gestation occurred in 14 women (43.8%) in the pessary group and 6 women (20.7%) in the control group (relative risk, 2.98; 95% confidence interval, 0.96-9.30). CONCLUSION In this underpowered trial, among women with singleton pregnancies and arrested preterm labor, compared with no pessary use, the use of a cervical pessary does not result in a lower rate of preterm birth at <37 weeks of gestation.
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Affiliation(s)
- Enrica Mastantuoni
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Gabriele Saccone
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy.
| | - Elisabetta Gragnano
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | | | - Fulvio Zullo
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Mariavittoria Locci
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
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Abstract
Preterm birth remains a major issue in obstetrics. Despite efforts to reduce the incidence of preterm delivery, rates in the United States remain high at 10.2% of all live births with an incidence of 10.8% globally. Preterm birth is the leading cause of neonatal morbidity and mortality worldwide. It is also the leading cause of death in children younger than 5 years. Research into this important health topic has allowed for the identification of risk factors for preterm birth, the most important of which is a history of prior preterm birth. Cervical length screening may allow us to identify those at greatest risk of recurrent preterm birth as well as a de novo risk in women with no prior preterm birth history.
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Affiliation(s)
- Noelle Breslin
- Columbia University Irving Medical Center, Department of Maternal and Fetal Medicine, 622 West 168th Street, Ph 12-28, New York, NY 10032, USA
| | - Cynthia Gyamfi-Bannerman
- Maternal-Fetal Medicine Fellowship Program, Columbia University, CUMC Preterm Birth Prevention Center, 630 West 168th Street, PH-16, New York, NY 10032, USA.
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França MS, Hatanaka AR, Andrade Junior VLD, Elito Junior J, Pares DBS, Hamamoto TENK, Sarmento SGP, Mattar R, Moron AF. Cervical Pessary Plus Progesterone for Twin Pregnancy with Short Cervix Compared to Unselected and Non-Treated Twin Pregnancy: A Historical Equivalence Cohort Study (EPM Twin Pessary Study). REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2020; 42:621-629. [PMID: 33129217 DOI: 10.1055/s-0040-1713806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVE The present study aims to determine if the use of cervical pessary plus progesterone in short-cervix (≤ 25 mm) dichorionic-diamniotic (DC-DA) twin pregnancies is equivalent to the rate of preterm births (PBs) with no intervention in unselected DC-DA twin pregnancies. METHODS A historical cohort study was performed between 2010 and 2018, including a total of 57 pregnant women with DC-DA twin pregnancies. The women admitted from 2010 to 2012 (n = 32) received no treatment, and were not selected by cervical length (Non-Treated group, NTG), whereas those admitted from 2013 to 2018 (n = 25), were routinely submitted to cervical pessary plus progesterone after the diagnosis of short cervix from the 18th to the 27th weeks of gestation (Pessary-Progesterone group, PPG). The primary outcome analyzed was the rate of PBs before 34 weeks. RESULTS There were no statistical differences between the NTG and the PPG regarding PB < 34 weeks (18.8% versus 40.0% respectively; p = 0.07) and the mean birthweight of the smallest twin (2,037 ± 425 g versus 2,195 ± 665 g; p = 0.327). The Kaplan-Meyer Survival analysis was performed, and there were no differences between the groups before 31.5 weeks. Logistic regression showed that a previous PB (< 37 weeks) presented an odds ratio (OR) of 15.951 (95% confidence interval [95%CI]: 1.294-196.557; p = 0.031*) for PB < 34 weeks in the PPG. CONCLUSION In DC-DA twin pregnancies with a short cervix, (which means a higher risk of PB), the treatment with cervical pessary plus progesterone could be considered equivalent in several aspects related to PB in the NTG, despite the big difference between these groups.
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Affiliation(s)
- Marcelo Santucci França
- Obstetrics Department, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Alan Roberto Hatanaka
- Obstetrics Department, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | - Julio Elito Junior
- Obstetrics Department, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - David Baptista Silva Pares
- Obstetrics Department, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | - Stephanno Gomes Pereira Sarmento
- Obstetrics Department, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.,Obstetrics and Gynecology Department, Faculdade de Medicina de Jundiaí, Jundiaí, SP, Brazil
| | - Rosiane Mattar
- Obstetrics Department, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Antonio Fernandes Moron
- Obstetrics Department, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Adra A, Khalife D, Usta IM, Hobeika E, Mirza F, Ghulmiyyah L, Nassar AH. Practice patterns of obstetric care in twin gestations: the value of MFM consultation. J Matern Fetal Neonatal Med 2020; 35:3453-3459. [PMID: 32954875 DOI: 10.1080/14767058.2020.1821640] [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: 10/23/2022]
Abstract
OBJECTIVES To evaluate the practice patterns among Lebanese obstetricians regarding obstetric care of twins and to compare selected practice patterns between general obstetricians and maternal fetal medicine physicians. METHODS Questionnaires distributed during the annual meeting of the Lebanese Society of Obstetrics and Gynecology. RESULTS Questionnaires were returned by 69.2% of the 296 physicians approached. Ten percent had fellowship training in Maternal Fetal Medicine (MFM). Thirty-nine percent perform cervical length measurement at 20-24 weeks of gestation and 34% recommend vaginal progesterone in case of a short cervix. When comparing selected practice patterns between MFM & general obstetricians, MFM specialists were less likely to perform cervical cerclage in the first trimester (5.9% versus 49%, p = .001), more likely to offer prenatal screening for aneuploidy (66.6% vs 46.4%, p = .03), less likely to use vaginal progesterone in the second trimester in the case of a short cervix (42.1% vs 61.8%, p = .04), less likely to perform serial ultrasound exam in the third trimester to assess fetal growth (50% vs 78%, p = .005) and more likely to deliver monoamniotic twins at 32-34 weeks of gestation (55% vs 37%, p = .05). CONCLUSION Because of the different background of the Lebanese physicians, MFM specialists are more likely to follow obstetric care guidelines in twin gestation.
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Affiliation(s)
- Abdallah Adra
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Dalia Khalife
- Department of Obstetrics and Gynecology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ihab M Usta
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Elie Hobeika
- Department of Obstetrics and Gynecology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Fadi Mirza
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Labib Ghulmiyyah
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Anwar H Nassar
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
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Conde-Agudelo A, Romero R, Nicolaides KH. Cervical pessary to prevent preterm birth in asymptomatic high-risk women: a systematic review and meta-analysis. Am J Obstet Gynecol 2020; 223:42-65.e2. [PMID: 32027880 DOI: 10.1016/j.ajog.2019.12.266] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/26/2019] [Accepted: 12/27/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Randomized controlled trials that have assessed the efficacy of cervical pessary to prevent preterm birth in asymptomatic high-risk women have reported conflicting results. OBJECTIVE To evaluate the efficacy and safety of cervical pessary to prevent preterm birth and adverse perinatal outcomes in asymptomatic high-risk women. DATA SOURCES MEDLINE, EMBASE, POPLINE, CINAHL, and LILACS (from their inception to October 31, 2019), Cochrane databases, Google Scholar, bibliographies, and conference proceedings. STUDY ELIGIBILITY CRITERIA Randomized controlled trials that compared cervical pessary with standard care (no pessary) or alternative interventions in asymptomatic women at high risk for preterm birth. STUDY APPRAISAL AND SYNTHESIS METHODS The systematic review was conducted according to the Cochrane Handbook guidelines. The primary outcome was spontaneous preterm birth <34 weeks of gestation. Secondary outcomes included adverse pregnancy, maternal, and perinatal outcomes. Pooled relative risks with 95% confidence intervals were calculated. Quality of evidence was assessed using the GRADE methodology. RESULTS Twelve studies (4687 women and 7167 fetuses/infants) met the inclusion criteria: 8 evaluated pessary vs no pessary in women with a short cervix, 2 assessed pessary vs no pessary in unselected multiple gestations, and 2 compared pessary vs vaginal progesterone in women with a short cervix. There were no significant differences between the pessary and no pessary groups in the risk of spontaneous preterm birth <34 weeks of gestation among singleton gestations with a cervical length ≤25 mm (relative risk, 0.80; 95% confidence interval, 0.43-1.49; 6 trials, 1982 women; low-quality evidence), unselected twin gestations (relative risk, 1.05; 95% confidence interval, 0.79-1.41; 1 trial, 1177 women; moderate-quality evidence), twin gestations with a cervical length <38 mm (relative risk, 0.75; 95% confidence interval, 0.41-1.36; 3 trials, 1128 women; low-quality evidence), and twin gestations with a cervical length ≤25 mm (relative risk; 0.72, 95% confidence interval, 0.25-2.06; 2 trials, 348 women; low-quality evidence). Overall, no significant differences were observed between the pessary and no pessary groups in preterm birth <37, <32, and <28 weeks of gestation, and most adverse pregnancy, maternal, and perinatal outcomes (low- to moderate-quality evidence for most outcomes). There were no significant differences in the risk of spontaneous preterm birth <34 weeks of gestation between pessary and vaginal progesterone in singleton gestations with a cervical length ≤25 mm (relative risk, 0.99; 95% confidence interval, 0.54-1.83; 1 trial, 246 women; low-quality evidence) and twin gestations with a cervical length <38 mm (relative risk, 0.73; 95% confidence interval, 0.46-1.18; 1 trial, 297 women; very low-quality evidence). Vaginal discharge was significantly more frequent in the pessary group than in the no pessary and vaginal progesterone groups (relative risks, ∼2.20; high-quality evidence). CONCLUSION Current evidence does not support the use of cervical pessary to prevent preterm birth or to improve perinatal outcomes in singleton or twin gestations with a short cervix and in unselected twin gestations.
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Affiliation(s)
- Agustin Conde-Agudelo
- 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, US Department of Health and Human Services, Bethesda, MD and Detroit, MI; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI
| | - 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, US Department of Health and Human Services, Bethesda, MD and Detroit, MI; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI; Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI; Detroit Medical Center, Detroit, MI; Department of Obstetrics and Gynecology, Florida International University, Miami, FL.
| | - Kypros H Nicolaides
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
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Dang VQ, He YT, Pham HN, Trieu TT, Bui TQ, Vuong NT, Nguyen LM, Nguyen DT, Le TV, Li W, Le CH, Mol BW, Vuong LN. Effectiveness of cervical pessary compared to cervical cerclage with or without vaginal progesterone for the prevention of preterm birth in women with twin pregnancies and a short cervix: study protocol for a two-by-two factorial randomised clinical trial. BMJ Open 2020; 10:e036587. [PMID: 32554744 PMCID: PMC7304826 DOI: 10.1136/bmjopen-2019-036587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Women with twin pregnancies and a short cervix are at increased risk for preterm birth (PTB). Given the burden of prematurity and its attendant risks, the quest for effective interventions in twins has been an area of considerable research. Studies investigating the effectiveness of cervical cerclage, cervical pessary and vaginal progesterone in preventing PTB have yielded conflicting results. The aim of this study is to compare the effectiveness of cervical pessary and cervical cerclage with or without vaginal progesterone to prevent PTB in women with twin pregnancies and a cervical length (CL) ≤ 28 mm. METHODS AND ANALYSIS This multicentre, randomised clinical trial will be conducted at My Duc Hospital and My Duc Phu Nhuan Hospital, Vietnam. Asymptomatic women with twin pregnancies and a CL ≤28 mm, measured at 16-22 weeks' gestation, will be randomised in a 1:1:1:1 ratio to receive a cerclage, pessary, cerclage plus progesterone or pessary plus progesterone. Primary outcome will be PTB <34 weeks. Secondary outcomes will be maternal and neonatal complications. We preplanned a subgroup analysis according to CL from all women after randomisation and divided into four quartiles. Analysis will be conducted on an intention-to-treat basis. The rate of PTB <34 weeks' gestation in women with twin pregnancies and a cervix ≤28 mm and treated with pessary in our previous study at My Duc Hospital was 24.2%. A sample size of 340 women will be required to show or refute that cervical cerclage decreases the rate of PTB <34 weeks by 50% compared with pessary (from 24.2% to 12.1%, α level 0.05, power 80%, 5% lost to follow-up and protocol deviation). This study is not to be powered to assess interactions between interventions. ETHICS AND DISSEMINATION Ethical approval was obtained from the Institutional Ethics Committee of My Duc Hospital and informed patient consent was obtained before study enrolment. Results of the study will be submitted for publication in a peer-reviewed journal. TRIAL REGISTRATION NUMBER NCT03863613 (date of registration: 4 March 2019).
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Affiliation(s)
- Vinh Q Dang
- Department of Obstetrics and Gynecology, My Duc Hospital, Ho Chi Minh City, Viet Nam
- HOPE Research Center, Ho Chi Minh City, Viet Nam
| | - Yen Tn He
- HOPE Research Center, Ho Chi Minh City, Viet Nam
- Department of Obstetrics and Gynecology, My Duc Phu Nhuan Hospital, Ho Chi Minh City, Viet Nam
| | - Ha Nh Pham
- Department of Obstetrics and Gynecology, My Duc Hospital, Ho Chi Minh City, Viet Nam
| | - Tuyen Tt Trieu
- Department of Obstetrics and Gynecology, My Duc Phu Nhuan Hospital, Ho Chi Minh City, Viet Nam
| | - Trung Q Bui
- Department of Obstetrics and Gynecology, My Duc Hospital, Ho Chi Minh City, Viet Nam
| | - Nhu T Vuong
- Department of Obstetrics and Gynecology, My Duc Hospital, Ho Chi Minh City, Viet Nam
| | | | | | - Thanh V Le
- Department of Obstetrics and Gynecology, My Duc Hospital, Ho Chi Minh City, Viet Nam
| | - Wentao Li
- Department of Obstetrics and Gynecology, Monash University, Clayton, Victoria, Australia
| | - Cam H Le
- Department of Obstetrics and Gynecology, My Duc Phu Nhuan Hospital, Ho Chi Minh City, Viet Nam
| | - Ben W Mol
- Department of Obstetrics and Gynecology, Monash University, Clayton, Victoria, Australia
| | - Lan N Vuong
- Department of Obstetrics and Gynecology, University of Medicine and Pharmacy at HCMC, Ho Chi Minh City, Viet Nam
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Piccioni MG, Del Negro V, Bruno Vecchio RC, Faralli I, Savastano G, Galoppi P, Perrone G. Is the Arabin Pessary really useful in preventing preterm birth? A review of literature. J Gynecol Obstet Hum Reprod 2020; 50:101824. [PMID: 32485317 DOI: 10.1016/j.jogoh.2020.101824] [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: 02/26/2020] [Revised: 05/19/2020] [Accepted: 05/27/2020] [Indexed: 01/04/2023]
Abstract
The aim of this review is to describe the state of the art in the use of Arabin Pessary for the prevention of spontaneous preterm birth (SPTB). We conducted a review of the literature in order to collect relevant studies concerning the efficacy of Arabin Pessary in preventing preterm birth, also considering it in addition or in comparison with other methods such as cervical cerclage or vaginal progesterone and in both singleton and twin pregnancy. Despite the large number of studies available there is not a clear consensus about the superiority of one of this methods over the others. In addition to this, although Arabin Pessary is widely used in clinical practice, no guidelines for management and use of cervical pessary during pregnancy have been assessed.
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Affiliation(s)
- M G Piccioni
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Italy.
| | - V Del Negro
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Italy.
| | - R C Bruno Vecchio
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Italy.
| | - I Faralli
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Italy.
| | - G Savastano
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Italy.
| | - P Galoppi
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Italy.
| | - G Perrone
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Italy.
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Cervical pessary for preterm twin pregnancy in women with a short cervix. Obstet Gynecol Sci 2020; 63:231-238. [PMID: 32489967 PMCID: PMC7231939 DOI: 10.5468/ogs.2020.63.3.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/22/2019] [Accepted: 08/25/2019] [Indexed: 11/08/2022] Open
Abstract
Objective We aimed to evaluate the effectiveness of cervical pessary for extending twin pregnancy in women with a short cervix. Methods Between January 2014 and March 2019, the use of a cervical pessary for twin pregnancy in women with a cervical length of ≤15 mm was investigated between 16 and 28 weeks of gestation. We included women with a shortened cervix after a cerclage procedure and visible fetal membranes and cervical dilatation. Thirteen patients underwent pessary insertion and were matched with a control group of 15 patients. Pregnancy and neonatal outcomes were compared between the groups. We excluded women with major fetal anomalies discovered before or after birth and known placenta previa. Results Women who underwent pessary insertion were diagnosed with a short cervix (0.65±0.47 vs. 0.66±0.51 cm in the pessary and control groups, respectively; P=0.957) at a gestational age similar to that of the controls (23.29 vs. 25.14 weeks, P=0.294). There was no significant difference in gestational age at delivery between them (33.29 vs. 27.29 weeks in the pessary and control groups, respectively, P=0.058). The pessary group had a longer interval between the diagnosis and delivery than the control group (60.7±28.3 vs. 22.6±24.5 days, P=0.001). The number of adverse neonatal outcomes was significantly lower in the pessary group (n=7; 28.0%) than in the control group (n=14; 58.3%; P=0.032). Conclusion The use of a cervical pessary may prolong gestation in twin pregnancies in women with an extremely short cervix until viable gestational age.
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Pessary Compared With Vaginal Progesterone for the Prevention of Preterm Birth in Women With Twin Pregnancies and Cervical Length Less Than 38 mm: A Randomized Controlled Trial. Obstet Gynecol 2020; 134:421-422. [PMID: 31348214 DOI: 10.1097/aog.0000000000003391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Xiong YQ, Tan J, Liu YM, Qi YN, He Q, Li L, Zou K, Sun X. Cervical pessary for preventing preterm birth in singletons and twin pregnancies: an update systematic review and meta-analysis. J Matern Fetal Neonatal Med 2020; 35:100-109. [PMID: 31948303 DOI: 10.1080/14767058.2020.1712705] [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] [Indexed: 02/08/2023]
Abstract
Objectives: To evaluate the effectiveness of cervical pessary in preventing preterm birth (PTB) and improving perinatal outcomes among singleton and twin pregnancies.Methods: Electronic databases were systematically searched from their inception until 14 March 2019. Randomized clinical trials comparing the effectiveness of cervical pessary placement with expectant management were included. The primary outcome was the incidence of PTB <34 weeks.Results: Thirteen studies were included, involving eight studies about singleton and six studies about twin pregnancies. For singleton pregnancies with short cervical length, cervical pessary, comparing with expectant treatment, seemed have no effectiveness in preventing PTB <34 weeks (relative risk, 95% confidence interval, 0.73, 0.42-1.28), <37 weeks (0.69, 0.43-1.09), and <28 weeks (0.79, 0.42-1.48); while for twin pregnancies with short cervical length, cervical pessary also did not reduce the risk of PTB <34 weeks (0.81, 0.49-1.35), <37 weeks (0.93, 0.83-1.05), and <28 weeks (0.72, 0.38-1.38). However, cervical pessary seemed have the effectiveness of reducing the risk of spontaneous PTB <28 weeks (0.50, 0.25-0.99) and low birth weight (<1500 g) (0.68, 0.50-0.94) among twin pregnancies with short cervical length. In addition, cervical pessary increased the rate of vaginal discharge and did not improve perinatal outcomes among both singleton and twin pregnancies.Conclusions: Comparing with the expectant treatment, the effectiveness of cervical pessary for reducing the risk of PTB remains uncertain. Additional trials are warranted to further evaluate the effectiveness of cervical pessary.
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Affiliation(s)
- Yi-Quan Xiong
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Tan
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
| | - Yan-Mei Liu
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
| | - Ya-Na Qi
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
| | - Qiao He
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
| | - Ling Li
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
| | - Kang Zou
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Sun
- Chinese Evidence-Based Medicine Centre and CREAT Group, West China Hospital, Sichuan University, Chengdu, China
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Pessary Compared With Vaginal Progesterone for the Prevention of Preterm Birth in Women With Twin Pregnancies and Cervical Length Less Than 38 mm: A Randomized Controlled Trial. Obstet Gynecol 2019; 133:459-467. [PMID: 30741812 DOI: 10.1097/aog.0000000000003136] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare the effectiveness of cervical pessary to vaginal progesterone for the prevention of preterm birth in women with twin pregnancies and short cervix. METHODS This randomized controlled trial was conducted at My Duc Hospital, Vietnam. Asymptomatic women with twin pregnancies and cervical length less than 38 mm were randomized to Arabin pessary or vaginal progesterone (400 mg once a day) group. The primary outcome was preterm birth at less than 34 weeks of gestation. Secondary outcomes were adverse maternal and perinatal complications. We planned a subgroup analysis according to quartile of cervical length. Analysis was conducted on an intention-to-treat basis. We estimated that the primary outcome would occur in 28.4% of women treated with progesterone. Thus a total sample size of 290 women divided equally into two groups was required to detect a 14% absolute risk difference in the primary outcome between the two groups (power 80%, alpha-error 5%, 10% loss to follow-up). RESULTS Between March 2016 and June 2017, we randomized 300 women, 150 women in each group. Preterm birth at less than 34 weeks of gestation occurred in 24 (16%) women in the pessary group and 33 (22%) women in the progesterone group (relative risk [RR] 0.73, 95% CI 0.46-1.18). The use of pessary significantly reduced the composite of poor perinatal outcomes (19% vs 27%; RR 0.70, 95% CI 0.43-0.93). In women with cervical length of 28 mm or less (25th percentile), pessary significantly reduced the preterm birth rate at less than 34 weeks of gestation from 46% (16/35) to 21% (10/47) (RR 0.47, 95% CI 0.24-0.90) and significantly improved the composite of poor perinatal outcomes. CONCLUSION Cervical pessary and 400 mg vaginal progesterone resulted in similar rates of preterm birth at less than 34 weeks of gestation in women with twin pregnancies and cervical length less than 38 mm. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov, NCT02623881.
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Pacagnella RC, Mol BW, Borovac-Pinheiro A, Passini R, Nomura ML, Andrade KC, Ellovitch N, Fernandes KG, Bortoletto TG, Pereira CM, Miele MJ, França MS, Cecatti JG. A randomized controlled trial on the use of pessary plus progesterone to prevent preterm birth in women with short cervical length (P5 trial). BMC Pregnancy Childbirth 2019; 19:442. [PMID: 31775669 PMCID: PMC6880495 DOI: 10.1186/s12884-019-2513-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 09/16/2019] [Indexed: 01/16/2023] Open
Abstract
Background Preterm birth is the leading cause of mortality and disability in newborn and infants. Having a short cervix increases the risk of preterm birth, which can be accessed by a transvaginal ultrasound scan during the second trimester. In women with a short cervix, vaginal progesterone and pessary can both reduce this risk, which progesterone more established than cervical pessary. The aim of this study is to compare the use of vaginal progesterone alone versus the association of progesterone plus pessary to prevent preterm birth in women with a short cervix. Methods This is a pragmatic open-label randomized controlled trial that will take place in 17 health facilities in Brazil. Pregnant women will be screened for a short cervix with a transvaginal ultrasound between 18 0/7 until 22 6/7 weeks of gestational age. Women with a cervical length below or equal to 30 mm will be randomized to the combination of progesterone (200 mg) and pessary or progesterone (200 mg) alone until 36 + 0 weeks. The primary outcome will be a composite of neonatal adverse events, to be collected at 10 weeks after birth. The analysis will be by intention to treat. The sample size is 936 women, and a prespecified subgroup analysis is planned for cervical length (= < or > 25 mm). Categorical variables will be expressed as a percentage and continuous variables as mean with standard deviation. Time to delivery will be assessed with Kaplan-Meier analysis and Cox proportional hazard analysis. Discussion In clinical practice, the combination of progesterone and pessary is common however, few studies have studied this association. The combination of treatment might act in both the biochemical and mechanical routes related to the onset of preterm birth. Trial registration Brazilian Clinical Trial Registry (ReBec) RBR-3t8prz, UTN: U1111–1164-2636, 2014/11/18.
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Affiliation(s)
- Rodolfo C Pacagnella
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil.
| | - Ben W Mol
- Obstetrics & Gynaecology Monash Health, Monash University, Monash Medical Centre, 246 Clayton Road, Clayton, Victoria, 3168, Australia
| | - Anderson Borovac-Pinheiro
- Obstetric Unit, Woman´s Hospital, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Renato Passini
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Marcelo L Nomura
- Obstetric Unit, Woman´s Hospital, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Kleber Cursino Andrade
- Ultrasound Department, Woman´s Hospital, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitaria Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Nathalia Ellovitch
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Karayna Gil Fernandes
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Thaísa Guedes Bortoletto
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Cynara Maria Pereira
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Maria Julia Miele
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
| | - Marcelo Santucci França
- Federal University of São Paulo - UNIFESP, R. Napoleão de Barros, 715-Vila Clementino, São Paulo, SP, 04024-002, Brasil
| | - Jose G Cecatti
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas - UNICAMP, Rua Alexander Fleming, 101 Cidade Universitária Zeferino Vaz, Campinas, 13087-460, Brasil
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Liu J, Song G, Meng T, Zhao G. Vaginal progesterone combined with cervical pessary in preventing preterm birth: a meta-analysis. J Matern Fetal Neonatal Med 2019; 34:3050-3056. [PMID: 31619103 DOI: 10.1080/14767058.2019.1677596] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Vaginal progesterone and cervical pessary are both shown to be effective in preventing preterm. We conducted a meta-analysis to evaluate whether the combination of these two interventions has any additional benefit in preventing preterm birth and improving perinatal outcomes in asymptomatic women with a singleton gestation who had a midtrimester sonographic short cervix compared with vaginal progesterone alone. METHODS Five databases were searched from their inception to 21 February 2019. We estimated relative risk (RR) and 95% confidence intervals (CIs) for dichotomous outcomes. The primary outcome was preterm birth <34 weeks, and second outcomes included low birth weight (LBW) delivery, perinatal death, and neonatal intensive care unit (NICU) admission. RESULTS Three RCTs with a total of 820 participants were identified. Cervical pessary had no significant prevention effect of preterm birth when combined with vaginal progesterone compared to the control group with vaginal progesterone alone (RR = 0.91; 95% CI, 0.47-1.77). No significant difference has been revealed between groups in LBW delivery (RR = 1.13; 95% CI, 0.86-1.48), perinatal death (RR = 1.27; 95% CI, 0.58-2.78) and NICU admission (RR = 1.24; 95% CI, 0.84-1.85). CONCLUSIONS Comparing with vaginal progesterone alone, cervical pessary plus vaginal progesterone did not reduce the rates of preterm birth at <34 weeks of gestation. There was no difference in LBW delivery, perinatal death, and NICU admission. We need more evidence to balance the benefit and side effects on the combination of vaginal progesterone and cervical pessary for preventing preterm birth.
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Affiliation(s)
- Jing Liu
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Guang Song
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tao Meng
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Ge Zhao
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China
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Abstract
This review underlines the important role that obstetricians play in the prevention of retinopathy of prematurity. Efforts predominately focus on predicting which pregnant women are at highest risk of preterm birth, instigating treatments to prevent pre-eclampsia, fetal growth restriction and maternal infection which could lead to iatrogenic or spontaneous preterm birth, and optimizing care when preterm birth is inevitable. More broadly, optimizing maternal health pre-conception through stopping smoking, improving diet, reducing obesity with its associated gestational diabetes, and treating hypertension may reduce preterm birth and other pregnancy complications. This is a message that all healthcare professionals including obstetricians, neonatologists and GPs, nursing and midwifery staff need to communicate all women and men who are contemplating having a baby.
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Affiliation(s)
- Lindsay M Kindinger
- Institute for Women's Health, Faculty of Population Health Sciences, University College London, London, WC1E 6HX, UK.
| | - Anna L David
- Institute for Women's Health, Faculty of Population Health Sciences, University College London, London, WC1E 6HX, UK
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Berger R, Abele H, Bahlmann F, Bedei I, Doubek K, Felderhoff-Müser U, Fluhr H, Garnier Y, Grylka-Baeschlin S, Helmer H, Herting E, Hoopmann M, Hösli I, Hoyme U, Jendreizeck A, Krentel H, Kuon R, Lütje W, Mader S, Maul H, Mendling W, Mitschdörfer B, Nicin T, Nothacker M, Olbertz D, Rath W, Roll C, Schlembach D, Schleußner E, Schütz F, Seifert-Klauss V, Steppat S, Surbek D. Prevention and Therapy of Preterm Birth. Guideline of the DGGG, OEGGG and SGGG (S2k Level, AWMF Registry Number 015/025, February 2019) - Part 2 with Recommendations on the Tertiary Prevention of Preterm Birth and the Management of Preterm Premature Rupture of Membranes. Geburtshilfe Frauenheilkd 2019; 79:813-833. [PMID: 31423017 DOI: 10.1055/a-0903-2735] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 01/25/2023] Open
Abstract
Aims This is an official guideline of the German Society for Gynecology and Obstetrics (DGGG), the Austrian Society for Gynecology and Obstetrics (ÖGGG) and the Swiss Society for Gynecology and Obstetrics (SGGG). The aim of this guideline is to improve the prediction, prevention and management of preterm birth based on evidence obtained from recently published scientific literature, the experience of the members of the guideline commission and the views of self-help groups. Methods The members of the participating medical societies and organizations developed Recommendations and Statements based on the international literature. The Recommendations and Statements were adopted following a formal consensus process (structured consensus conference with neutral moderation, voting done in writing using the Delphi method to achieve consensus). Recommendations Part 2 of this short version of the guideline presents Statements and Recommendations on the tertiary prevention of preterm birth and the management of preterm premature rupture of membranes.
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Affiliation(s)
- Richard Berger
- Frauenklinik, Marienhaus Klinikum Neuwied, Neuwied, Germany
| | - Harald Abele
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Franz Bahlmann
- Frauenklinik, Bürgerhospital Frankfurt, Frankfurt am Main, Germany
| | - Ivonne Bedei
- Frauenklinik, Klinikum Frankfurt Höchst, Frankfurt am Main, Germany
| | | | - Ursula Felderhoff-Müser
- Klinik für Kinderheilkunde I/Perinatalzentrum, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Herbert Fluhr
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Yves Garnier
- Frauenklinik, Klinikum Osnabrück, Osnabrück, Germany
| | | | - Hanns Helmer
- Universitätsklinik für Frauenheilkunde, Medizinische Universität Wien, Wien, Austria
| | - Egbert Herting
- Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Markus Hoopmann
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Irene Hösli
- Frauenklinik, Universitätsspital Basel, Basel, Switzerland
| | - Udo Hoyme
- Frauenklinik, Ilm-Kreis-Kliniken, Arnstadt, Germany
| | | | - Harald Krentel
- Frauenklinik, Annahospital Herne, Elisabethgruppe Katholische Kliniken Rhein Ruhr, Herne, Germany
| | - Ruben Kuon
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Wolf Lütje
- Frauenklinik, Evangelisches Amalie Sieveking-Krankenhaus Hamburg, Hamburg, Germany
| | - Silke Mader
- European Foundation for the Care of the Newborn Infants
| | - Holger Maul
- Frauenklinik, Asklepios Kliniken Hamburg, Hamburg, Germany
| | - Werner Mendling
- Deutsches Zentrum für Infektionen in Gynäkologie und Geburtshilfe an der Frauenklinik, Helios Universitätsklinikum Wuppertal, Wuppertal, Germany
| | | | | | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften, Berlin, Germany
| | - Dirk Olbertz
- Abteilung Neonatologie und neonatologische Intensivmedizin, Klinikum Südstadt Rostock, Rostock, Germany
| | - Werner Rath
- Emeritus, Universitätsklinikum Aachen, Aachen, Germany
| | - Claudia Roll
- Vestische Kinder- und Jugendklinik Datteln, Universität Witten/Herdecke, Datteln, Germany
| | - Dietmar Schlembach
- Klinik für Geburtsmedizin, Klinikum Neukölln/Berlin Vivantes Netzwerk für Gesundheit, Berlin, Germany
| | | | - Florian Schütz
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | | | - Daniel Surbek
- Universitäts-Frauenklinik, Inselspital, Universität Bern, Bern, Switzerland
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Grantz KL, Kawakita T, Lu YL, Newman R, Berghella V, Caughey A, Caughey A. SMFM Special Statement: State of the science on multifetal gestations: unique considerations and importance. Am J Obstet Gynecol 2019; 221:B2-B12. [PMID: 31002766 DOI: 10.1016/j.ajog.2019.04.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We sought to review the state of the science for research on multiple gestations. A literature search was performed with the use of PubMed for studies to quantify the representation of multiple gestations for a sample period (2012-2016) that were limited to phase III and IV randomized controlled trials, that were written in English, and that addressed at least 1 of 4 major pregnancy complications: fetal growth restriction or small-for-gestational-age fetus, gestational diabetes mellitus, preeclampsia, and preterm delivery. Of the 226 studies that are included in the analysis, multiple pregnancies were most represented in studies of preterm delivery: 17% of trials recruited both singleton and multiple pregnancies; another 18% of trials recruited only multiple pregnancies. For trials that studied preeclampsia, fetal growth restriction, and gestational diabetes mellitus, 17%, 8%, and 2%, respectively, recruited both singleton and multiple gestations. None of the trials on these 3 topics were limited to women with a multiple pregnancy. Women with a multiple pregnancy are at risk for complications similar to those of women with singleton pregnancies, but their risk is usually higher. Also, the pathophysiologic condition for some complications differs in multiple gestations from those that occur in singleton gestations. Conditions that are unique to multiple pregnancies include excess placenta, placental crowding or inability of the uteroplacental unit to support the normal growth of multiple fetuses, or suboptimal placental implantation sites with an increased risk of abnormal placental location. Other adverse outcomes in multiple gestations are also influenced by twin-specific risk factors, most notably chorionicity. Although twins have been well represented in many studies of preterm birth, these studies have failed to identify adequate predictive tests (short cervical length established over 2 decades ago remains the single best predictor), to establish effective interventions, and to differentiate the underlying pathophysiologic condition of twin preterm birth. Questions about fetal growth also remain. Twin growth deviates from that of singleton gestations starting at approximately 32 weeks of gestation; however, research with long-term follow-up is needed to better distinguish pathologic and physiologic growth deviations, which include growth discordance among pairs (or more). There are virtually no clinical trials that are specific to twins for gestational diabetes mellitus or preeclampsia, and subgroups for multiple pregnancies in existing trials are not large enough to allow definite conclusions. Another important area is the determination of appropriate maternal nutrition or micronutrient supplementation to optimize pregnancy and child health. There are also unique aspects to consider for research design in multiple gestations, such as designation and tracking of the correct fetus prenatally and through delivery. The correct statistical methods must be used to account for correlated data because multiple fetuses share the same mother and intrauterine environment. In summary, multiple gestations often are excluded from research studies, despite a disproportionate contribution to national rates of perinatal morbidity, mortality, and health-care costs. It is important to consider the enrollment of multifetal pregnancies in studies that target mainly women with singleton gestations, even when sample size is inadequate, so that insights that are specific to multiple gestations can be obtained when results of smaller studies are pooled together. The care of pregnant women with multiple gestations presents unique challenges; unfortunately, evidence-based clinical management that includes the diagnosis and treatment of common obstetrics problems are not well-defined for this population.
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Affiliation(s)
| | | | | | | | | | | | - Aaron Caughey
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR
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46
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In Reply. Obstet Gynecol 2019; 134:422. [PMID: 31348215 DOI: 10.1097/aog.0000000000003392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Murray SR, Bhattacharya S, Stock SJ, Pell JP, Norman JE. Gestational age at delivery of twins and perinatal outcomes: a cohort study in Aberdeen, Scotland. Wellcome Open Res 2019; 4:65. [PMID: 31448338 PMCID: PMC6688720 DOI: 10.12688/wellcomeopenres.15211.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2019] [Indexed: 11/24/2022] Open
Abstract
Background: Twin pregnancy is associated with a threefold increase in perinatal death compared to singletons. The objective of this study was to determine the risk of perinatal death in twins by week of gestation and to quantify the effect of known risk factors. Methods: A cohort analysis was performed using data from the Aberdeen Maternity and Neonatal Databank (AMND). The exposure was gestational age at delivery and the primary outcome was perinatal death. Adjusted hazard ratios (aHRs) for perinatal death according to gestational age at delivery were determined by multivariate Cox proportional hazards regression modelling with robust standard errors to account for clustering in the twin infants. Confounders and risk factors quantified and adjusted for in the model included maternal age, smoking, parity, marital status and year of birth. Kaplan-Meier time to event analysis was used to determine the differences in survival according to chorionicity and assisted reproduction technologies (ART) conception status. Results: The population comprised of 7,420 twin babies born between 1950 and 2013 in the Grampian area of Northern Scotland. There were 272 stillbirths in the cohort (3.67%) and 273 neonatal deaths (3.68%). Compared to delivery at 37-38 weeks, delivery before 37 weeks was associated with a 2-fold increase in perinatal death. Monochorionic twins had a 2-fold increase in perinatal death compared to dichorionic twins (aHR 2.15, 95% CI 1.60-2.90). Twins conceived by ART did not have a greater risk of perinatal death compared to those naturally conceived (aHR 1.21, 95% CI 0.87-1.68) Conclusion: This study suggests that delivery of twins at 37-38 weeks is associated with the lowest risk of perinatal death.
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Affiliation(s)
- Sarah R. Murray
- MRC Centre for Reproductive Health, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
| | - Sohinee Bhattacharya
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, AB25 2ZL, UK
| | - Sarah J. Stock
- MRC Centre for Reproductive Health, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
| | - Jill P. Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Jane E. Norman
- MRC Centre for Reproductive Health, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
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Simons NE, van de Beek C, van der Lee JH, Opmeer BC, van Wassenaer-Leemhuis AG, van Baar AL, Steenis L, Liem S, Schuit E, Bekedam D, Mol BWJ, Van't Hooft J. Child outcomes after placement of a cervical pessary in women with a multiple pregnancy: A 4-year follow-up of the ProTWIN trial. Acta Obstet Gynecol Scand 2019; 98:1292-1300. [PMID: 31032879 PMCID: PMC6900136 DOI: 10.1111/aogs.13630] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 03/23/2019] [Accepted: 04/14/2019] [Indexed: 01/24/2023]
Abstract
Introduction The ProTWIN trial previously showed no beneficial effect of treatment with a cervical pessary vs usual care to prevent preterm birth in women with a multiple pregnancy. However, in women with a midtrimester short cervix (<38 mm), pessary did reduce the composite outcome of neonatal morbidity and mortality. This follow‐up study evaluates the long‐term outcomes of all children born to mothers who participated in the ProTWIN trial at 4 years of age. Material and methods Parents received the Ages and Stages Questionnaire, Strength and Difficulties Questionnaire and a health questionnaire. All questionnaires were reported separately and as a combined outcome (abnormal child outcome). A linear mixed effects model was used to adjust for correlated data in twins and correction for confounders was performed. In exploratory analysis, a composite outcome of death or survival with abnormal child outcome was used by combining extrapolated data on child outcome with survival data. All data were analyzed for the total group and the subgroup of women with midtrimester short cervix. Results Of the original 813 women of the ProTWIN trial, we approached 579, of whom 258 participated (45%) in follow‐up. We received questionnaires of 514 children (281 pessary vs 233 control), with 119 children in the subgroup of women with midtrimester short cervix. An abnormal child outcome was found in 23% in the pessary group vs 16% in the control group (odds ratio 1.58; 95% confidence interval 0.94‐2.65). In exploratory analysis with extrapolated data on child outcome (n = 815), no difference in abnormal child outcome was seen between the pessary and control group. In the subgroup of women with a short cervix (n = 268), this composite outcome indicated a favorable outcome for children born to mothers with pessary. Conclusions In women with a multiple pregnancy, the use of a cervical pessary did not improve development, behavior or physical outcomes of the surviving children at age 4.
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Affiliation(s)
- Noor E Simons
- Department of Obstetrics and Gynecology, Amsterdam UMC - Location AMC, Amsterdam, The Netherlands
| | - Cornelieke van de Beek
- Department of Obstetrics and Gynecology, Amsterdam UMC - Location AMC, Amsterdam, The Netherlands
| | - Johanna H van der Lee
- Pediatric Clinical Research Office, Emma Children's Hospital Amsterdam UMC - Location AMC, Amsterdam, The Netherlands
| | - Brent C Opmeer
- Clinical Research Unit, Amsterdam UMC - Location AMC, Amsterdam, The Netherlands
| | - Aleid G van Wassenaer-Leemhuis
- Department of Neonatology and Pediatrics, Emma Children's Hospital Amsterdam UMC - Location AMC, Amsterdam, The Netherlands
| | | | - Leonie Steenis
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Sophie Liem
- Department of Obstetrics and Gynecology, Amsterdam UMC - Location AMC, Amsterdam, The Netherlands
| | - Ewoud Schuit
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Dick Bekedam
- Department of Obstetrics and Gynecology, OLVG-Oost, Amsterdam, The Netherlands
| | - Ben W J Mol
- Department of Obstetrics and Gynecology, Monash University, Melbourne, Victoria, Australia
| | - Janneke Van't Hooft
- Department of Obstetrics and Gynecology, Amsterdam UMC - Location AMC, Amsterdam, The Netherlands
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Murray SR, Bhattacharya S, Stock SJ, Pell JP, Norman JE. Gestational age at delivery of twins and perinatal outcomes: a cohort study in Aberdeen, Scotland. Wellcome Open Res 2019; 4:65. [PMID: 31448338 PMCID: PMC6688720 DOI: 10.12688/wellcomeopenres.15211.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2019] [Indexed: 02/15/2024] Open
Abstract
Background: Twin pregnancy is associated with a threefold increase in perinatal death compared to singletons. The objective of this study was to determine the risk of perinatal death in twins by week of gestation and to quantify the effect of known risk factors. Methods: A cohort analysis was performed using data from the Aberdeen Maternity and Neonatal Databank (AMND). The exposure was gestational age at delivery and the primary outcome was perinatal death. Adjusted hazard ratios (aHRs) for perinatal death according to gestational age at delivery were determined by multivariate Cox proportional hazards regression modelling with robust standard errors to account for clustering in the twin infants. Confounders and risk factors quantified and adjusted for in the model included maternal age, smoking, parity, marital status and year of birth. Kaplan-Meier time to event analysis was used to determine the differences in survival according to chorionicity and assisted reproduction technologies (ART) conception status. Results: The population comprised of 7,420 twin babies born between 1950 and 2013 in the Grampian area of Northern Scotland. There were 272 stillbirths in the cohort (3.67%) and 273 neonatal deaths (3.68%). Compared to delivery at 37-38 weeks, delivery at or beyond 39 weeks was associated with a significant increase in perinatal death (aHR 2.00 [95% CI 1.45-2.78]). Monochorionic twins had a 2-fold increase in perinatal death compared to dichorionic twins (aHR 2.15, 95% CI 1.60-2.90). Twins conceived by ART did not have a greater risk of perinatal death compared to those naturally conceived (aHR 1.21, 95% CI 0.87-1.68) Conclusion: This study suggests that delivery of twins at 37-38 weeks is associated with the lowest risk of perinatal death.
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Affiliation(s)
- Sarah R. Murray
- MRC Centre for Reproductive Health, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
| | - Sohinee Bhattacharya
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, AB25 2ZL, UK
| | - Sarah J. Stock
- MRC Centre for Reproductive Health, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
| | - Jill P. Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Jane E. Norman
- MRC Centre for Reproductive Health, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
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50
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Stafford IA, Garite TJ, Maurel K, Combs CA, Heyborne K, Porreco R, Nageotte M, Baker S, Gopalani S, Dola C, How H, Das AF. Cervical Pessary versus Expectant Management for the Prevention of Delivery Prior to 36 Weeks in Women with Placenta Previa: A Randomized Controlled Trial. AJP Rep 2019; 9:e160-e166. [PMID: 31044098 PMCID: PMC6491366 DOI: 10.1055/s-0039-1687871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 02/21/2019] [Indexed: 02/06/2023] Open
Abstract
Objective This multicenter randomized controlled trial compared cervical pessary (CP) versus expectant management (EM) in women with placenta previa between 22.0 and 32.0 in prolonging gestation until ≥ 36.0 weeks' gestation. Study Design This study took place from November 2016 to June 2018. Women were randomized to receive either the Bioteque CP or EM. The pessary was removed at ≥ 36.0 weeks unless indicated. The primary outcome was gestational age (GA) at delivery, with secondary outcomes including need for transfusion, number and duration of antepartum admissions, type of delivery, and neonatal outcomes. A total of 140 patients were needed to show a 3-week prolongation of pregnancy in the pessary group; however, the trial was stopped early due to budgetary issues. Results Of the 33 eligible women, 17 were enrolled. Although not statistically significant, the mean GA at delivery in the CP group was greater than women in the EM group (36.5 ± 1.23 vs. 36.0 ± 2.0; p = 0.1673). The number and duration of antepartum admissions was greater in the EM group (2.7 ± 0.58 vs. 16.0 ± 22.76 days; p = 0.1264) as well. Conclusion Although the study was underpowered to determine the primary outcome, safety and feasibility of CP in pregnancies complicated with previa were demonstrated.
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Affiliation(s)
- Irene A Stafford
- Department of Obstetrics and Gynecology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas.,Touro Infirmary, Louisiana State University Health Science Center, New Orleans, Louisiana
| | - Thomas J Garite
- University of California, Irvine, Orange, California.,The Center for Research, Education, Quality and Safety, Mednax, Inc., Sunrise, Florida
| | - Kimberly Maurel
- The Center for Research, Education, Quality and Safety, Mednax, Inc., Sunrise, Florida
| | - C Andrew Combs
- The Center for Research, Education, Quality and Safety, Mednax, Inc., Sunrise, Florida.,Obstetrix Medical Group, San Jose, California
| | - Kent Heyborne
- Denver Health and Hospital Authority, Denver, Colorado
| | | | | | - Susan Baker
- University of South Alabama Children's and Women's Hospital, Mobile, Alabama
| | | | - Chi Dola
- Tulane Lakeside Hospital for Women and Children, New Orleans, Louisiana
| | - Helen How
- Norton Hospital, Louisville, Kentucky
| | - Anita F Das
- Das Consulting Group, San Francisco, California
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