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Shea SK, Newman RB. Fetal Growth and Antenatal Testing in Uncomplicated Multiple Gestations. Clin Obstet Gynecol 2023; 66:864-883. [PMID: 37910097 DOI: 10.1097/grf.0000000000000815] [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
Multiple gestations experience a slowing of fetal growth in the third trimester and have been described as having a higher risk of growth restriction. Whether this increased diagnosis of fetal growth restriction is physiological or pathologic is controversial. In an attempt to better identify those fetuses most at risk, twin-specific growth charts have been developed and tested. In addition, there are data to suggest that multiple gestations experience an increased risk of unexpected third-trimester stillbirth in apparently uncomplicated pregnancies. This chapter reviews the current data and recommendations for fetal growth assessment, antenatal surveillance, and delivery timing in uncomplicated multiple gestations.
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Affiliation(s)
- Sarah K Shea
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, The Medical University of South Carolina, Charleston, South Carolina
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Salerno C, Melis B, Donno V, Guariglia G, Menichini D, Perrone E, Facchinetti F, Monari F. Risk factors for stillbirth at term: an Italian area-based, prospective cohort study. AJOG GLOBAL REPORTS 2023; 3:100269. [PMID: 37868824 PMCID: PMC10585316 DOI: 10.1016/j.xagr.2023.100269] [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] [Indexed: 10/24/2023] Open
Abstract
BACKGROUND Stillbirth at term has great emotional impact on both parents and professionals. In developed countries, efforts to identify risk factors are mandatory to plan area-specific prevention strategies. OBJECTIVE The aim of the study was to identify independent risk factors that contribute to stillbirth at 37 weeks' gestation or later. STUDY DESIGN This was an area-based, prospective cohort study on pregnancy at term with enrolled from 2014 to 2021 in Emilia-Romagna, a north Italian region. Data were retrieved from both birth certificates and the Stillbirth Surveillance system database. To identify independent risk factors, a multivariate analysis using logistic regression was performed. A descriptive analysis of the causes of stillbirth is also reported. RESULTS In the observation period, 246,437 babies born at term (including 260 stillbirths, giving a rate of 1.06/1000) were considered. The risk factors independently associated with stillbirth were small for gestational age babies (odds ratio, 2.58; 95% confidence interval, 1.88-3.53), pregnancy achieved though fertility treatments (odds ratio, 2.01; 95% confidence interval, 1.15-3.51), and delayed access to pregnancy services (odds ratio, 1.56; 95% confidence interval, 1.10-2.22). In multipara, the presence of a previous stillbirth (odds ratio, 3.91; 95% confidence interval, 1.98-7.72) was also associated with an increased risk for recurrence. Early- rather than late-term was an additional risk factor. The most frequent causes of death were placental and cord disorders (61/260 and 56/260, respectively). However, 28.1% of cases remain unexplained. CONCLUSION The risks for stillbirth at term are known early in pregnancy or could be identified through tailored antenatal management, allowing effective preventive strategies to reduce preventable cases.
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Affiliation(s)
- Cristina Salerno
- Obstetrics and Gynecology Unit, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy (Drs Salerno, Melis, Donno, Guariglia, Facchinetti, and Monari)
| | - Beatrice Melis
- Obstetrics and Gynecology Unit, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy (Drs Salerno, Melis, Donno, Guariglia, Facchinetti, and Monari)
| | - Valeria Donno
- Obstetrics and Gynecology Unit, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy (Drs Salerno, Melis, Donno, Guariglia, Facchinetti, and Monari)
| | - Gloria Guariglia
- Obstetrics and Gynecology Unit, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy (Drs Salerno, Melis, Donno, Guariglia, Facchinetti, and Monari)
| | - Daniela Menichini
- International Doctorate School in Clinical and Experimental Medicine, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy (Dr Menichini)
| | - Enrica Perrone
- Emilia-Romagna Health and Welfare Directorate, Community Care Department, Bologna, Italy (Dr Perrone)
| | - Fabio Facchinetti
- Obstetrics and Gynecology Unit, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy (Drs Salerno, Melis, Donno, Guariglia, Facchinetti, and Monari)
| | - Francesca Monari
- Obstetrics and Gynecology Unit, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy (Drs Salerno, Melis, Donno, Guariglia, Facchinetti, and Monari)
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Oliver E, Navaratnam K, Gent J, Khalil A, Sharp A. Comparison of International Guidelines on the Management of Twin Pregnancy. Eur J Obstet Gynecol Reprod Biol 2023; 285:97-104. [PMID: 37087836 DOI: 10.1016/j.ejogrb.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 04/09/2023]
Abstract
OBJECTIVES To review current international clinical guidelines on the antenatal and intrapartum management of twin pregnancies, examining areas of consensus and conflict. METHODS We conducted a database search using Medline, Pubmed, Scopus, Academic Search Complete, CINAHL and ERCI Guidelines website. Guidelines were screened for eligibility using our inclusion and exclusion criteria. Those deemed eligible were quality assessed using the AGREE II tool and relevant data was extracted. RESULTS We identified 21 relevant guidelines from 16 countries including two international society guidelines. There was consensus in determination of chorionicity and amnionicity within the first trimester, fetal anomaly scan between 18 and 22 weeks and the recommended screening for twin-to-twin transfusion syndrome (TTTS). For those that provided intrapartum guidance, there was agreement in recommending caesarean section to deliver monochorionic monoamniotic (MCMA) twins, epidural anaesthesia for intrapartum analgesia and the use of cardiotocography (CTG) for intrapartum fetal monitoring. The main areas of conflict included cervical length screening, frequency of ultrasound surveillance, timing of delivery of dichorionic twin pregnancies and circumstances for recommending vaginal delivery. There was a lack of advice on intrapartum management. CONCLUSIONS This review has highlighted the need for unified international guidance on the management of twin pregnancy. Comparisons of current guidance demonstrates a lack of confidence in the management of labour in twin pregnancies. Further evidence on intrapartum care of twin pregnancies is needed to inform practice guidelines and improve both short and long term maternal and fetal outcomes.
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Ohkuchi A, Suzuki H, Matsubara K, Watanabe K, Saitou T, Oda H, Obata S, Kondo S, Noda K, Miyoshi J, Ikenoue S, Nomiyama M, Seki H, Sukegawa S, Ichigo S, Ando H, Fuseya C, Shimomura T, Suzuki R, Mimura K, Yasuhi I, Fukuda M, Hara S, Kurashina R, Shiozaki A, Matsubara S, Saito S. Exponential increase of the gestational-age-specific incidence of preeclampsia onset (COPE study): a multicenter retrospective cohort study in women with maternal check-ups at <20 weeks of gestation in Japan. Hypertens Res 2022; 45:1679-1689. [DOI: 10.1038/s41440-022-01013-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 11/09/2022]
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Cho GJ, Cho KD, Kim HY, Ha S, Oh MJ, Won HS, Chung JH. Short-term neonatal and long-term infant outcome of late-preterm twins: nationwide population-based study. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2022; 59:763-770. [PMID: 34931725 DOI: 10.1002/uog.24838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 11/04/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES To evaluate the short- and long-term outcome of late-preterm compared with term birth in twin pregnancy. METHODS This retrospective observational cohort study included all women who had a twin delivery between 1 January 2007 and 31 December 2010 recorded in the claims database of the Korea National Health Insurance, with at least one follow-up recorded in the database of the National Health Screening Program for Infants and Children. Outcomes were analyzed at the pregnancy level, with adverse outcome being defined as an adverse outcome in one or both twins, identified by a diagnosis according to the International Classification of Diseases 10th Revision. The primary short-term outcome was composite morbidity, which included any of the following: transient tachypnea, respiratory distress syndrome, necrotizing enterocolitis, intraventricular hemorrhage and bronchopulmonary dysplasia. Long-term adverse outcome included any neurological or neurodevelopmental outcome, defined by prespecified neurological and developmental diagnoses; these were assessed by following up all neonates until the end of 2018, by which time they were 8-11 years of age. Outcomes were compared between twins delivered late preterm (34 + 0 to 36 + 6 weeks) and those delivered at term (≥ 37 weeks). RESULTS Among 17 189 women who delivered twins at ≥ 34 weeks of gestation during the study period, 5032 (29.27%) women delivered in the late-preterm period. On multivariate analysis, compared with the twins delivered at term, the late-preterm twins had an increased risk for the primary short-term outcome of composite morbidity (adjusted odds ratio (aOR), 2.09; 95% CI, 1.90-2.30), including transient tachypnea (aOR, 1.85; 95% CI, 1.64-2.09), respiratory distress syndrome (aOR, 2.31; 95% CI, 2.04-2.62), necrotizing enterocolitis (aOR, 2.10; 95% CI, 1.20-3.69) and intraventricular hemorrhage (aOR, 2.13; 95% CI, 1.46-3.11). For the long-term outcome, the late-preterm twins also had an increased risk for any neurological or neurodevelopmental outcome (adjusted hazard ratio, 1.14; 95% CI, 1.07-1.21). CONCLUSIONS Twins delivered in the late-preterm period have an increased risk for short- and long-term morbidity compared with twins delivered at term. These results should be considered when determining the timing of delivery in uncomplicated twin pregnancy. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- G J Cho
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - K-D Cho
- Big Data Department, National Health Insurance Service, Gangwon-do, Korea
| | - H Y Kim
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - S Ha
- Graduate School of Statistics, Sungkyunkwan University, Seoul, Korea
| | - M-J Oh
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - H-S Won
- Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - J H Chung
- Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Hiersch L, Barrett J, Fox NS, Rebarber A, Kingdom J, Melamed N. Should twin-specific growth charts be used to assess fetal growth in twin pregnancies? Am J Obstet Gynecol 2022; 227:10-28. [PMID: 35114185 DOI: 10.1016/j.ajog.2022.01.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 11/17/2022]
Abstract
One of the hallmarks of twin pregnancies is the slower rate of fetal growth when compared with singleton pregnancies during the third trimester. The mechanisms underlying this phenomenon and whether it represents pathology or benign physiological adaptation are currently unclear. One important implication of these questions relates to the type growth charts that should be used by care providers to monitor growth of twin fetuses. If the slower growth represents pathology (ie, intrauterine growth restriction caused uteroplacental insufficiency), it would be preferable to use a singleton growth chart to identify a small twin fetus that is at risk for perinatal mortality and morbidity. If, however, the relative smallness of twins is the result of benign adaptive mechanisms, it is likely preferable to use a twin-based charts to avoid overdiagnosis of intrauterine growth restriction in twin pregnancies. In the current review, we addressed this question by describing the differences in fetal growth between twin and singleton pregnancies, reviewing the current knowledge regarding the mechanisms responsible for slower fetal growth in twins, summarizing available empirical evidence on the diagnostic accuracy of the 2 types of charts for intrauterine growth restriction in twin pregnancies, and addressing the question of whether uncomplicated dichorionic twins are at an increased risk for fetal death when compared with singleton fetuses. We identified a growing body of evidence that shows that the use of twin charts can reduce the proportion of twin fetuses identified with suspected intrauterine growth restriction by up to 8-fold and can lead to a diagnosis of intrauterine growth restriction that is more strongly associated with adverse perinatal outcomes and hypertensive disorders than a diagnosis of intrauterine growth restriction based on a singleton-based chart without compromising the detection of twin fetuses at risk for adverse outcomes caused by uteroplacental insufficiency. We further found that small for gestational age twins are less likely to experience adverse perinatal outcomes or to have evidence of uteroplacental insufficiency than small for gestational age singletons and that recent data question the longstanding view that uncomplicated dichorionic twins are at an increased risk for fetal death caused by placental insufficiency. Overall, it seems that, based on existing evidence, the of use twin charts is reasonable and may be preferred over the use of singleton charts when monitoring the growth of twin fetuses. Still, it is important to note that the available data have considerable limitations and are primarily derived from observational studies. Therefore, adequately-powered trials are likely needed to confirm the benefit of twin charts before their use is adopted by professional societies.
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Affiliation(s)
- Liran Hiersch
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada; Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Lis Maternity Hospital, Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jon Barrett
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Nathan S Fox
- Icahn School of Medicine at Mount Sinai, New York, NY; Maternal Fetal Medicine Associates, PLLC, New York, NY
| | - Andrei Rebarber
- Icahn School of Medicine at Mount Sinai, New York, NY; Maternal Fetal Medicine Associates, PLLC, New York, NY
| | - John Kingdom
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Nir Melamed
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Isaacson A, Diseko M, Mayondi G, Mabuta J, Davey S, Mmalane M, Makhema J, Jacobson DL, Luckett R, Shapiro RL, Zash R. Prevalence and outcomes of twin pregnancies in Botswana: a national birth outcomes surveillance study. BMJ Open 2021; 11:e047553. [PMID: 34675010 PMCID: PMC8532549 DOI: 10.1136/bmjopen-2020-047553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 09/24/2021] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES This study aims to evaluate the prevalence and outcome of twin pregnancies in Botswana. SETTING The Tsepamo Study conducted birth outcomes surveillance at 8 government-run hospitals (~45% of all births in Botswana) from August 2014 to June 2018 and expanded to 18 hospitals (~70% of all births in Botswana) from July 2018 to March 2019. PARTICIPANTS Data were collected for all live-born and stillborn in-hospital deliveries with a gestational age (GA) greater than 24 weeks. This analysis included 117 593 singleton and 3718 twin infants (1859 sets (1.6%)) born to 119 477 women between August 2014 and March 2019 and excluded 73 higher order multiples (23 sets of triplets and 1 set of quadruplets). OUTCOMES MEASURED Our primary outcomes were preterm delivery (<37 weeks GA), very preterm delivery (<32 weeks GA) and stillbirth (APGAR (Appearance, Pulse, Grimace, Activity, Respiration) score of 0, 0, 0). RESULTS Women with twin pregnancies had a similar median number of antenatal care visits (9 vs 10), but were more likely to deliver in a tertiary centre (54.8% vs 45.1%, p<0.001) and more likely to have a cesarean-section (54.6% vs 22.0%, p<0.001) than women with singletons. Compared with singletons, twin pregnancies had a higher risk of preterm delivery (<37 weeks GA) (47.6% vs 16.7%, adjusted risk ratio (aRR) 2.8, 95% CI 2.7 to 2.9) and very preterm delivery (<32 weeks) (11.8% vs 4.0%, aRR 3.0 95% CI 2.6 to 3.4). Among all twin pregnancies, 128 (6.9%) had at least one stillborn infant compared with 2845 (2.4%) stillbirths among singletons (aRR 2.8, 95% CI 2.3 to 3.3). CONCLUSION Adverse birth outcomes are common among twins in Botswana, and are often severe. Interventions that allow for earlier identification of twin gestation and improved antenatal management of twin pregnancies may improve infant and child survival.
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Affiliation(s)
- Arielle Isaacson
- Harvard Medical School, Boston, Massachusetts, USA
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Modiegi Diseko
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Gloria Mayondi
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Judith Mabuta
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Sonya Davey
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
- Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Mompati Mmalane
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Joseph Makhema
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Denise L Jacobson
- Center for Biostatistics and AIDS Research, Harvard University T H Chan School of Public Health, Boston, Massachusetts, USA
| | - Rebecca Luckett
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Roger L Shapiro
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
- Harvard University T H Chan School of Public Health, Boston, Massachusetts, USA
| | - Rebecca Zash
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
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Evidence around early induction of labor in women of advanced maternal age and those using assisted reproductive technology. Best Pract Res Clin Obstet Gynaecol 2021; 77:42-52. [PMID: 34538560 DOI: 10.1016/j.bpobgyn.2021.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/20/2021] [Accepted: 08/10/2021] [Indexed: 11/21/2022]
Abstract
Worldwide, there has been a trend toward later motherhood. Concurrently, the incidence of subfertility has been on the rise, necessitating conception using assisted reproductive technologies (ARTs). These pregnancies are considered high risk due to fetal complications such as antepartum stillbirth and growth restriction and maternal complications such as increase in maternal morbidity and mortality. Early induction of labor can help to mitigate these risks. However, this has to be balanced against the iatrogenic harms of earlier delivery to both the baby, including respiratory distress and NICU stay, and the mother who might experience longer labor and other complications such as uterine hyperstimulation. Induction of labor at 39 weeks is the optimal timing for preventing antepartum stillbirth and avoiding iatrogenic harm. Delivery by elective cesarean section is not advocated as its benefits in these patients are unclear compared with the short- and long-term complications of a major abdominal surgery.
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Kehl S, Hösli I, Pecks U, Reif P, Schild RL, Schmidt M, Schmitz D, Schwarz C, Surbek D, Abou-Dakn M. Induction of Labour. Guideline of the DGGG, OEGGG and SGGG (S2k, AWMF Registry No. 015-088, December 2020). Geburtshilfe Frauenheilkd 2021; 81:870-895. [PMID: 34393254 DOI: 10.1055/a-1519-7713] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 01/17/2023] Open
Abstract
Aim The aim of this official guideline published and coordinated by the German Society of Gynaecology and Obstetrics (DGGG) in cooperation with the Austrian Society of Gynaecology and Obstetrics (OEGGG) and the Swiss Society of Gynaecology and Obstetrics (SGGG) is to provide a consensus-based overview of the indications, methods and general management of induction of labour by evaluating the relevant literature. Methods This S2k guideline was developed using a structured consensus process which included representative members from various professions; the guideline was commissioned by the guidelines commission of the DGGG, OEGGG and SGGG. Recommendations The guideline provides recommendations on the indications, management, methods, monitoring and special situations occurring in the context of inducing labour.
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Affiliation(s)
- Sven Kehl
- Frauenklinik, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Irene Hösli
- Frauenklinik, Universitätsspital Basel, Basel, Switzerland
| | - Ulrich Pecks
- Klinik für Gynäkologie und Geburtshilfe, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Philipp Reif
- Frauenheilkunde und Geburtshilfe, Universitätsklinikum Graz, Graz, Austria
| | - Ralf L Schild
- Klinik für Geburtshilfe und Perinatalmedizin, Diakovere Krankenhaus gGmbH, Hannover, Germany
| | - Markus Schmidt
- Frauenheilkunde und Geburtshilfe, Sana Kliniken Duisburg, Duisburg, Germany
| | - Dagmar Schmitz
- Institut für Geschichte, Theorie und Ethik der Medizin, Uniklinik RWTH Aachen, Aachen, Germany
| | - Christiane Schwarz
- Fachbereich Hebammenwissenschaft, Institut für Gesundheitswissenschaften, Universität zu Lübeck, Lübeck, Germany
| | - Daniel Surbek
- Frauenklinik, Inselspital, Universitätsspital Bern, Bern, Switzerland
| | - Michael Abou-Dakn
- Klinik für Gynäkologie, St. Joseph Krankenhaus, Berlin Tempelhof, Berlin, Germany
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Ding G, Vinturache A, Yu J, Lu M, Pang Y, Tian Y, Zhang J. Optimal delivery timing for twin pregnancies: A population-based retrospective cohort study. Int J Clin Pract 2021; 75:e14014. [PMID: 33420725 DOI: 10.1111/ijcp.14014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/13/2020] [Accepted: 10/21/2020] [Indexed: 11/28/2022] Open
Abstract
AIMS The optimal timing of delivery for twin pregnancies remains controversial. This study examined the risks of adverse neonatal outcomes and neonatal deaths according to gestational age at delivery in order to determine the optimal gestational age of delivery for twin pregnancies. METHODS This is a retrospective study of twin pregnancies delivered between 34 and 40 weeks of gestation from 1995 to 2000 in the United States. The primary outcomes evaluated were neonatal morbidity and mortality. The composite outcome of neonatal morbidity included the following variables: Apgar score lower than 7 at 5 minutes, assisted ventilation <30 minutes, assisted ventilation ≥30 minutes, hyaline membrane disease, meconium aspiration syndrome, neonatal seizures, birth injury, anaemia, and congenital malformations. Logistic regressions were applied to calculate adjusted odds ratios of the adverse outcomes according to the gestational week at delivery, with either individual twins or twin pairs as the unit of analysis. RESULTS A total of 466 038 twins from 233 019 pregnancies from the US National Center for Health Statistics matched the multiple birth data set included in the study. The composite neonatal morbidity and mortality risks declined from 34 to 38 weeks of gestation and increased thereafter in both individual and pair twins stratified analyses. Amongst neonatal adverse outcomes, the risk of low Apgar score and hyaline membrane disease decreased progressively towards 38 weeks of gestation, only to increase again towards 40 weeks. The risk of meconium aspiration syndrome increased after 38 weeks, in both individual and pair twins. There were no differences in the risk of birth injury and neonatal seizures when stratified by gestational age. CONCLUSIONS The optimal timing for twin delivery appears to be at 38 weeks of gestation, although individual maternal, foetal, and pregnancy characteristics should be considered when determining the best timing for delivery.
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Affiliation(s)
- Guodong Ding
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Angela Vinturache
- Department of Obstetrics & Gynecology, Queen Elizabeth II Hospital, Alberta, Canada
| | - Jing Yu
- Campus Infirmary, Fudan University, Shanghai, China
| | - Min Lu
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yu Pang
- China Novartis Institutes for BioMedical Research Co., Ltd, Shanghai, China
| | - Ying Tian
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Major Discordant Structural Anomalies in Monochorionic Twins: Spectrum and Outcomes. Twin Res Hum Genet 2018; 21:546-555. [PMID: 30375322 DOI: 10.1017/thg.2018.58] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Monochorionic twins, resulting from a single fertilized egg giving rise to two separate embryos, are monozygotic and considered genetically identical. However, discordant phenotypes have been reported in monozygotic twins. We analyzed a retrospective cohort of 155 monochorionic pregnancies (312 twins) with major discordant structural anomalies coded by the ICD-10 system in order to describe the spectrum of anomalies, the management of the pregnancies, and the perinatal outcome. Treatment options included conservative management, selective feticide with bipolar cord coagulation, or complete termination. All survivors underwent at least 24 months of postnatal follow-up. Discordancy was complicated by twin-to-twin transfusion syndrome in eight pregnancies (5%) and by selective intrauterine growth restriction in 41 (26%). Major structural anomalies affected one system in 139 cases (90%) and multiple systems in 16 (10%). Median gestational age at diagnosis was 19.1 weeks (IQR 16.4-21.3). The most frequent single-system anomalies involved the nervous and circulatory systems. In total, 72 anomalous twins (46%) and 116 normal co-twins (74%) were delivered at a median gestational age of 34.6 weeks (IQR 31.0-36.3). Neonatal/infant death of the anomalous twin occurred in 22 cases (14%), with an overall survival rate of 32% (50/155). Surviving anomalous twins underwent major surgery in 22/50 cases (44%), four of whom (8%) now suffer from severe neurologic morbidity. This study shows that a wide spectrum of major discordant structural anomalies can be found in monochorionic pregnancies. The outcome for the anomalous twin is poor, while the survival rate for the normal co-twin was 71%, with a favorable overall prognosis.
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Vasak B, Verhagen JJ, Koenen SV, Koster MP, de Reu PA, Franx A, Nijhuis JG, Bonsel GJ, Visser GH. Lower perinatal mortality in preterm born twins than in singletons: a nationwide study from The Netherlands. Am J Obstet Gynecol 2017; 216:161.e1-161.e9. [PMID: 27729252 DOI: 10.1016/j.ajog.2016.10.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/16/2016] [Accepted: 10/03/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Twin pregnancies are at increased risk for perinatal morbidity and death because of many factors that include a high incidence of preterm delivery. Compared with singleton pregnancies, overall perinatal risk of death is higher in twin pregnancies; however, for the preterm period, the perinatal mortality rate has been reported to be lower in twins. OBJECTIVE The purpose of this study was to compare perinatal mortality rates in relation to gestational age at birth between singleton and twin pregnancies, taking into account socioeconomic status, fetal sex, and parity. STUDY DESIGN We studied perinatal mortality rates according to gestational age at birth in 1,502,120 singletons pregnancies and 51,658 twin pregnancies without congenital malformations who were delivered between 2002 and 2010 after 28 weeks of gestation. Data were collected from the nationwide Netherlands Perinatal Registry. RESULTS Overall the perinatal mortality rate in twin pregnancies (6.6/1000 infants) was higher than in singleton pregnancies (4.1/1000 infants). However, in the preterm period, the perinatal mortality rate in twin pregnancies was substantially lower than in singleton pregnancies (10.4 per 1000 infants as compared with 34.5 per 1000 infants, respectively) for infants who were born at <37 weeks of gestation; this held especially for antepartum deaths. After 39 weeks of gestation, the perinatal mortality rate was higher in twin pregnancies. Differences in parity, fetal sex, and socioeconomic status did not explain the observed differences in outcome. CONCLUSION Overall the perinatal mortality rate was higher in twin pregnancies than in singleton pregnancies, which is most likely caused by the high preterm birth rate in twins and not by a higher mortality rate for gestation, apart from term pregnancies. During the preterm period, the antepartum mortality rate was much lower in twin pregnancies than in singleton pregnancies. We suggest that this might be partially due to a closer monitoring of twin pregnancies, which indirectly suggests a need for closer surveillance of singleton pregnancies.
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Cheong-See F, Schuit E, Arroyo-Manzano D, Khalil A, Barrett J, Joseph KS, Asztalos E, Hack K, Lewi L, Lim A, Liem S, Norman JE, Morrison J, Combs CA, Garite TJ, Maurel K, Serra V, Perales A, Rode L, Worda K, Nassar A, Aboulghar M, Rouse D, Thom E, Breathnach F, Nakayama S, Russo FM, Robinson JN, Dodd JM, Newman RB, Bhattacharya S, Tang S, Mol BWJ, Zamora J, Thilaganathan B, Thangaratinam S. Prospective risk of stillbirth and neonatal complications in twin pregnancies: systematic review and meta-analysis. BMJ 2016; 354:i4353. [PMID: 27599496 PMCID: PMC5013231 DOI: 10.1136/bmj.i4353] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/06/2016] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To determine the risks of stillbirth and neonatal complications by gestational age in uncomplicated monochorionic and dichorionic twin pregnancies. DESIGN Systematic review and meta-analysis. DATA SOURCES Medline, Embase, and Cochrane databases (until December 2015). REVIEW METHODS Databases were searched without language restrictions for studies of women with uncomplicated twin pregnancies that reported rates of stillbirth and neonatal outcomes at various gestational ages. Pregnancies with unclear chorionicity, monoamnionicity, and twin to twin transfusion syndrome were excluded. Meta-analyses of observational studies and cohorts nested within randomised studies were undertaken. Prospective risk of stillbirth was computed for each study at a given week of gestation and compared with the risk of neonatal death among deliveries in the same week. Gestational age specific differences in risk were estimated for stillbirths and neonatal deaths in monochorionic and dichorionic twin pregnancies after 34 weeks' gestation. RESULTS 32 studies (29 685 dichorionic, 5486 monochorionic pregnancies) were included. In dichorionic twin pregnancies beyond 34 weeks (15 studies, 17 830 pregnancies), the prospective weekly risk of stillbirths from expectant management and the risk of neonatal death from delivery were balanced at 37 weeks' gestation (risk difference 1.2/1000, 95% confidence interval -1.3 to 3.6; I(2)=0%). Delay in delivery by a week (to 38 weeks) led to an additional 8.8 perinatal deaths per 1000 pregnancies (95% confidence interval 3.6 to 14.0/1000; I(2)=0%) compared with the previous week. In monochorionic pregnancies beyond 34 weeks (13 studies, 2149 pregnancies), there was a trend towards an increase in stillbirths compared with neonatal deaths after 36 weeks, with an additional 2.5 per 1000 perinatal deaths, which was not significant (-12.4 to 17.4/1000; I(2)=0%). The rates of neonatal morbidity showed a consistent reduction with increasing gestational age in monochorionic and dichorionic pregnancies, and admission to the neonatal intensive care unit was the commonest neonatal complication. The actual risk of stillbirth near term might be higher than reported estimates because of the policy of planned delivery in twin pregnancies. CONCLUSIONS To minimise perinatal deaths, in uncomplicated dichorionic twin pregnancies delivery should be considered at 37 weeks' gestation; in monochorionic pregnancies delivery should be considered at 36 weeks. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42014007538.
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Affiliation(s)
- Fiona Cheong-See
- Women's Health Research Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London E1 2AB, UK
| | - Ewoud Schuit
- Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, Netherlands Department of Obstetrics and Gynaecology, Academic Medical Centre, Amsterdam, Netherlands Stanford Prevention Research Center, Stanford University, Palo Alto, Stanford, CA 94305, USA
| | - David Arroyo-Manzano
- Clinical Biostatistics Unit, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Asma Khalil
- Fetal Medicine Unit, St George's Healthcare NHS Trust, London SW17 0QT, UK
| | - Jon Barrett
- Evaluative Clinical Sciences, Women and Babies Research Program, Sunnybrook Research Institute, Toronto, ON M4N 3M5, Canada
| | - K S Joseph
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC V6Z 2K5, Canada
| | - Elizabeth Asztalos
- Department of Newborn and Developmental Paediatrics, Women and Babies Research Program, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Karien Hack
- Department of Gynaecology and Obstetrics, Diakonessenhuis, 3582 KE Utrecht, Netherlands
| | - Liesbeth Lewi
- Department of Obstetrics-Gynaecology, University Hospitals, 3000 Leuven, Belgium Department of Development and Regeneration: Pregnancy, Fetus and Neonate, KU Leuven, Belgium
| | - Arianne Lim
- Department of Obstetrics and Gynaecology, Academic Medical Centre, 1105 AZ Amsterdam, Netherlands
| | - Sophie Liem
- Department of Obstetrics and Gynaecology, Academic Medical Centre, 1105 AZ Amsterdam, Netherlands
| | - Jane E Norman
- University of Edinburgh MRC Centre for Reproductive Health, Queen's Medical Research Institute, Edinburgh EH16 4TY, UK
| | - John Morrison
- Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson, MS, USA
| | - C Andrew Combs
- Obstetrix Collaborative Research Network, Center for Research, Education and Quality, Mednax National Medical Group, FL 33323, USA
| | - Thomas J Garite
- Obstetrix Collaborative Research Network, Center for Research, Education and Quality, Mednax National Medical Group, FL 33323, USA University of California Irvine, Irvine, CA 92697, USA
| | - Kimberly Maurel
- Obstetrix Collaborative Research Network, Center for Research, Education and Quality, Mednax National Medical Group, FL 33323, USA
| | - Vicente Serra
- Maternal-Fetal Medicine Unit, Instituto Valenciano de Infertilidad, University of Valencia, Spain Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Valencia, Jefe Servicio Obstetricia Hospital U P La FE, Torre F, Valencia, Espana
| | - Alfredo Perales
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Valencia, Jefe Servicio Obstetricia Hospital U P La FE, Torre F, Valencia, Espana Department of Obstetrics, University Hospital La Fe, Valencia, 46026 València, Spain
| | - Line Rode
- Centre of Fetal Medicine, Department of Obstetrics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Katharina Worda
- Department of Obstetrics and Gynaecology, Medical University of Vienna, 1090 Wien, Austria
| | - Anwar Nassar
- Department of Obstetrics and Gynaecology, American University of Beirut Medical Centre, Riad El Solh, Beirut 1107 2020, Lebanon
| | - Mona Aboulghar
- The Egyptian IVF Centre, Maadi and Department of Obstetrics and Gynaecology, Faculty of Medicine, Cairo University, Oula, Giza, Egypt
| | - Dwight Rouse
- Department of Obstetrics and Gynecology, Women and Infants Hospital, Brown University Women and Infants Hospital, Providence, RI 02905, USA
| | - Elizabeth Thom
- Royal College of Surgeons in Ireland, Rotunda Hospital, Dublin, Republic of Ireland
| | - Fionnuala Breathnach
- Royal College of Surgeons in Ireland, Rotunda Hospital, Dublin, Republic of Ireland
| | - Soichiro Nakayama
- Department of Maternal Fetal Medicine, Osaka Medical Center and Research Institute for Maternal and Child Health, Izumi, Osaka 594-1101, Japan
| | - Francesca Maria Russo
- Department of Obstetrics and Gynecology, University of Milano-Bicocca, 20126 Milan, Italy
| | - Julian N Robinson
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Jodie M Dodd
- Robinson Research Institute, and Discipline of Obstetrics and Gynaecology, University of Adelaide, North Adelaide SA 5006, Australia
| | - Roger B Newman
- Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, SC 29403, USA
| | - Sohinee Bhattacharya
- University of Aberdeen, Dugald Baird Centre for Research on Women's Health, Aberdeen Maternity Hospital, Aberdeen AB25 2ZL, UK
| | - Selphee Tang
- Department of Obstetrics and Gynecology, Alberta Health Services, Calgary, AB T2N 2T9, Canada
| | - Ben Willem J Mol
- Australian Research Centre for Health of Women and Babies, Robinson Institute, University of Adelaide, North Adelaide, SA 5006, Australia
| | - Javier Zamora
- Clinical Biostatistics Unit, Hospital Ramón y Cajal (IRYCIS), Madrid, Spain CIBER Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | | | - Shakila Thangaratinam
- Women's Health Research Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London E1 2AB, UK
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Page JM, Pilliod RA, Snowden JM, Caughey AB. The risk of stillbirth and infant death by each additional week of expectant management in twin pregnancies. Am J Obstet Gynecol 2015; 212:630.e1-7. [PMID: 25797235 DOI: 10.1016/j.ajog.2015.03.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 02/11/2015] [Accepted: 03/17/2015] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The objective of the study was to compare the fetal/infant mortality risk associated with each additional week of expectant management with the mortality risk of immediate delivery in women with twin gestations. STUDY DESIGN A retrospective cohort study was performed utilizing 2006-2008 National linked birth certificate and death certificate data. The incidence of stillbirth and infant death were determined for each week of pregnancy from 32 0/7 weeks' through 40 6/7 weeks' gestation. Pregnancies complicated by fetal anomalies were excluded. These measures were combined to estimate the theoretic risk of remaining pregnant an additional week by adding the risk of stillbirth during the extra week of pregnancy with the risk of infant death encountered with delivery during the following week. This composite fetal/infant mortality risk was compared with the risk of infant death associated with delivery at the corresponding gestational age. RESULTS The risk of stillbirth increased with increasing gestational age, for example, between 37 and 38 weeks' gestation (12.5 per 10,000 vs 22.5 per 10,000; P<.05). As expected, the risk of infant death following delivery gradually decreased as pregnancies approached term gestation. Week-by-week differences were statistically significant (P<.05) between 32 and 36 weeks with decreasing risk of infant death at advancing gestational ages. The composite risk of stillbirth and infant death associated with an additional week of pregnancy had a significant increase from 37 to 38 weeks' gestation (43.9 per 10,000 vs 59.2 per 10,000; P<.05). At 37 weeks' gestation, the relative risk of mortality was statistically significantly lower with immediate delivery as compared with expectant management (relative risk, 0.87; 95% confidence interval, 0.77-0.99). CONCLUSION Our results suggest that fetal/infant death risk is minimized at 37 weeks' gestation; however, individual maternal and fetal characteristics must also be taken into account when determining the optimal timing of delivery for twin pregnancies.
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Affiliation(s)
- Jessica M Page
- Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT.
| | - Rachel A Pilliod
- Department of Obstetrics and Gynecology, Brigham and Womens Hospital and Massachusetts General Hospital, Boston, MA
| | - Jonathan M Snowden
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR
| | - Aaron B Caughey
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR
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A population-based cohort study of stillbirth among twins in Lusaka, Zambia. Int J Gynaecol Obstet 2015; 130:74-8. [PMID: 25862294 DOI: 10.1016/j.ijgo.2014.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 12/17/2014] [Accepted: 03/13/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To determine rates of stillbirth and the associated risk factors for stillbirth among twins delivered in Lusaka, Zambia. METHODS A retrospective cohort analysis was conducted of singletons and twins delivered at 26 public sector facilities between February 1, 2006, and May 31, 2013. Data were obtained from the Zambian Electronic Perinatal Record System. Risk of stillbirth was estimated using logistic regression. RESULTS Overall, 260 657 singletons and 4021 twin pairs were included. There were 5105 stillbirths; 317 twins were stillborn. The crude stillbirth rate for twins was 39.4 per 1000 births (95% confidence interval [CI] 35.2-43.7) whereas the rate for singletons was 18.4 per 1000 births (95% CI 17.9-18.9; P<0.001). Factors associated with stillbirth among twins were increased interval between delivery (>60 minutes), low birth weight (<2500 g), birth order (being the second-born), and difference in birth weights (>30% discordance). CONCLUSION Twins were at an increased risk of stillbirth. Improved understanding of factors associated with stillbirth in this population could help to improve perinatal outcomes globally.
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