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Liu S, Xu Q, Qian J, Liu D, Zhang B, Chen X, Zheng M. Pregnancy outcomes of monochorionic diamniotic and dichorionic diamniotic twin pregnancies conceived by assisted reproductive technology and conceived naturally: a study based on chorionic comparison. BMC Pregnancy Childbirth 2024; 24:337. [PMID: 38698326 PMCID: PMC11067179 DOI: 10.1186/s12884-024-06521-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 04/15/2024] [Indexed: 05/05/2024] Open
Abstract
OBJECTIVE To evaluate monochorionic diamniotic (MCDA) and dichorionic diamniotic (DCDA) twin pregnancies conceived by assisted reproductive technology (ART) and conceived naturally. METHODS We retrospectively analyzed the data on twin pregnancies conceived by ART from January 2015 to January 2022,and compared pregnancy outcomes of MCDA and DCDA twins conceived by ART with those of MCDA and DCDA twins conceived naturally, pregnancy outcomes between MCDA and DCDA twins conceived by ART, and pregnancy outcomes of DCT and TCT pregnancies reduced to DCDA pregnancies with those of DCDA pregnancies conceived naturally. RESULT MCDA pregnancies conceived by ART accounted for 4.21% of the total pregnancies conceived by ART and 43.81% of the total MCDA pregnancies. DCDA pregnancies conceived by ART accounted for 95.79% of the total pregnancies conceived by ART and 93.26% of the total DCDA pregnancies. Women with MCDA pregnancies conceived by ART had a higher premature delivery rate, lower neonatal weights, a higher placenta previa rate, and a lower twin survival rate than those with MCDA pregnancies conceived naturally (all p < 0.05). Women with DCDA pregnancies conceived naturally had lower rates of preterm birth, higher neonatal weights, and higher twin survival rates than women with DCDA pregnancies conceived by ART and those with DCT and TCT pregnancies reduced to DCDA pregnancies (all p < 0.05). CONCLUSION Our study confirms that the pregnancy outcomes of MCDA pregnancies conceived by ART are worse than those of MCDA pregnancies conceived naturally. Similarly, the pregnancy outcomes of naturally-conceived DCDA pregnancies are better than those of DCDA pregnancies conceived by ART and DCT and TCT pregnancies reduced to DCDA pregnancies.
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Affiliation(s)
- Shuhua Liu
- Department of Obstetrics and Gynecology, Hefei Maternal and Child Health Hospital, Hefei, 230001, China.
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center,, Hefei, 230001, China.
- Department of Obstetrics and Gynecology, Maternal and Child Medical Center of Anhui Medical University, Hefei, 230001, China.
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230000, China.
| | - Qianhua Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230000, China
| | - Jingyu Qian
- Department of Obstetrics and Gynecology, Hefei Maternal and Child Health Hospital, Hefei, 230001, China
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center,, Hefei, 230001, China
- Department of Obstetrics and Gynecology, Maternal and Child Medical Center of Anhui Medical University, Hefei, 230001, China
| | - Dehong Liu
- Department of Obstetrics and Gynecology, Hefei Maternal and Child Health Hospital, Hefei, 230001, China
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center,, Hefei, 230001, China
- Department of Obstetrics and Gynecology, Maternal and Child Medical Center of Anhui Medical University, Hefei, 230001, China
| | - Bin Zhang
- Department of Obstetrics and Gynecology, Hefei Maternal and Child Health Hospital, Hefei, 230001, China
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center,, Hefei, 230001, China
- Department of Obstetrics and Gynecology, Maternal and Child Medical Center of Anhui Medical University, Hefei, 230001, China
| | - Xianxia Chen
- Department of Obstetrics and Gynecology, Hefei Maternal and Child Health Hospital, Hefei, 230001, China.
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center,, Hefei, 230001, China.
- Department of Obstetrics and Gynecology, Maternal and Child Medical Center of Anhui Medical University, Hefei, 230001, China.
| | - Mingming Zheng
- Department of Obstetrics and Gynecology, Hefei Maternal and Child Health Hospital, Hefei, 230001, China.
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center,, Hefei, 230001, China.
- Department of Obstetrics and Gynecology, Maternal and Child Medical Center of Anhui Medical University, Hefei, 230001, China.
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Liu S, Xu Q, Liu D, Li Q, Qian J, Zhang B, Chen X. Pregnancy and obstetric outcomes of dichorionic triamniotic triplet pregnancies with selective foetal reduction after assisted reproductive technology. Reprod Biol Endocrinol 2024; 22:30. [PMID: 38491531 PMCID: PMC10941449 DOI: 10.1186/s12958-024-01199-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 02/27/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND It is generally beneficial and recommended that dichorionic triamniotic (DCTA) triplet pregnancies be reduced to monochorionic (MC) twin or singleton pregnancies after assisted reproductive technology (ART). However, some infertile couples still have a firm desire to retain twins. For this reason, the best foetal reduction strategies need to be available for infertile couples and clinicians. Given that data on the elective reduction of DCTA triplet pregnancies to twin pregnancies are scarce, we investigated the outcomes of elective reduction of DCTA triplet pregnancies through the retrospective analysis of previous data. METHOD Patients with DCTA triplet pregnancies who underwent elective foetal reduction between January 2012 and June 2020 were recruited. A total of 67 eligible patients with DCTA triplet pregnancies were divided into two groups: a DCTA-to-dichorionic diamniotic (DCDA) twin group (n = 38) and a DCTA-to-monochorionic diamniotic (MCDA) twin group (n = 29); the basic clinical data of the two groups were collected for comparison. RESULTS Compared with the DCDA-to-MCDA twin group, the DCTA-to-DCDA twin group had lower rates of complete miscarriage (7.89% versus 31.03%, p = 0.014), early complete miscarriage (5.26% versus 24.14%, p = 0.034), late preterm birth (25.71% versus 65.00%, p = 0.009) and very low birth weight (0 versus 11.11%, p = 0.025). In addition, the DCTA-to-DCDA twin group had higher rates of full-term delivery (65.71% versus 25.00%, p = 0.005), survival (92.11% versus 68.97%, p = 0.023), and taking the babies home (92.11% versus 68.97%, p = 0.023) than did the DCTA-to-MCDA twin group. In terms of neonatal outcomes, a significantly greater gestational age (38.06 ± 2.39 versus 36.28 ± 2.30, p = 0.009), average birth weight (3020.77 ± 497.33 versus 2401.39 ± 570.48, p < 0.001), weight of twins (2746.47 ± 339.64 versus 2251.56 ± 391.26, p < 0.001), weight of the larger neonate (2832.94 ± 320.58 versus 2376.25 ± 349.95, p < 0.001) and weight of the smaller neonate (2660.00 ± 345.34 versus 2126.88 ± 400.93, p < 0.001) was observed in the DCTA-to-DCDA twin group compared to the DCTA-to-MCDA twin group. CONCLUSION The DCTA-to-DCDA twin group had better pregnancy and neonatal outcomes than the DCTA-to-MCDA twin group. This reduction approach may be beneficial for patients with dichorionic triamniotic triplet pregnancies who have a strong desire to have DCDA twins.
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Affiliation(s)
- Shuhua Liu
- Department of Obstetrics and Gynecology, Hefei Maternity Child Health Hospital, Hefei, 230000, China.
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, 230000, China.
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China.
| | - Qianhua Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Dehong Liu
- Department of Obstetrics and Gynecology, Hefei Maternity Child Health Hospital, Hefei, 230000, China
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, 230000, China
| | - Qiuru Li
- Department of Obstetrics and Gynecology, Hefei Maternity Child Health Hospital, Hefei, 230000, China
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, 230000, China
| | - Jingyu Qian
- Department of Obstetrics and Gynecology, Hefei Maternity Child Health Hospital, Hefei, 230000, China
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, 230000, China
| | - Bin Zhang
- Department of Obstetrics and Gynecology, Hefei Maternity Child Health Hospital, Hefei, 230000, China.
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, 230000, China.
| | - Xianxia Chen
- Department of Obstetrics and Gynecology, Hefei Maternity Child Health Hospital, Hefei, 230000, China.
- Department of Obstetrics and Gynecology, Anhui Women and Children's Medical Center, Hefei, 230000, China.
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Meireson E, De Rycke L, Bijnens EM, Dehaene I, De Bock S, Derom C, Roelens K. Birth outcomes of twins after multifetal pregnancy reduction compared with primary twins. Am J Obstet Gynecol MFM 2024; 6:101230. [PMID: 37984690 DOI: 10.1016/j.ajogmf.2023.101230] [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: 11/14/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND The introduction of assisted reproductive technology and the trend of increasing maternal age at conception have contributed to a significant rise in the incidence of multiple pregnancies. Multiple pregnancies bear several inherent risks for both mother and child. These risks increase with plurality and type of chorionicity. Multifetal pregnancy reduction is the selective abortion of ≥1 fetuses to improve the outcome of the remaining fetus(es) by decreasing the risk of premature birth and other complications. OBJECTIVE This study aimed to compare birth outcomes of trichorionic triplets reduced to twins with those of trichorionic triplets and primary dichorionic twins. The added value of this study is the comparison with an additional control group, namely primary dichorionic twins. STUDY DESIGN This was a retrospective cohort study. Data from January 1990 to November 2016 were collected from the East Flanders Prospective Twin Survey, one of the largest European multiple birth registries. A total of 85 trichorionic triplet pregnancies (170 neonates) undergoing multifetal pregnancy reduction to twins were compared with 5093 primary dichorionic twin pregnancies (10,186 neonates) and 104 expectantly managed trichorionic triplet pregnancies (309 neonates). The assessed outcomes were gestational age at delivery, birthweight, and small for gestational age. RESULTS Pregnancy reduction from triplets to twins was associated with higher birthweight (+365.44 g; 95% confidence interval, 222.75-508.14 g; P<.0001) and higher gestational age (1.7 weeks; 95% confidence interval, 0.93-2.46; P<.0001) compared with ongoing trichorionic triplets after adjustment for sex, parity, method of conception, birth year, and maternal age. A trend toward lower risk of small for gestational age was observed. Reduced triplets had, on average, lower birthweight (-263.12 g; 95% confidence interval, -371.80 to -154.44 g; P<.0001) and lower gestational age (-1.13 weeks; 95% confidence interval, -1.70 to -0.56; P=.0001) compared with primary twins. No statistically significant difference was observed between primary twins and reduced triplets that reached 32 weeks of gestation. CONCLUSION Multifetal pregnancy reduction from trichorionic triplets to twins significantly improved birth outcomes. This suggests that multifetal pregnancy reduction of trichorionic triplets to twins is medically justifiable. However, the birth outcomes of primary twins before 32 weeks of gestation are still better than those of reduced triplets. The process of multifetal pregnancy reduction includes at least 1 fetal death by definition, and thus prevention of higher-order pregnancies is preferable.
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Affiliation(s)
- Eline Meireson
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium (Ms Meireson and Dr Roelens); Department of Obstetrics and Gynaecology, Ghent University Hospital, Ghent, Belgium (Ms Meireson and Drs De Rycke, Dehaene, Derom, and Roelens).
| | - Laura De Rycke
- Department of Obstetrics and Gynaecology, Ghent University Hospital, Ghent, Belgium (Ms Meireson and Drs De Rycke, Dehaene, Derom, and Roelens)
| | - Esmée M Bijnens
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium (Dr Bijnens); Department of Environmental Sciences, Open University of the Netherlands, Heerlen, The Netherlands (Dr Bijnens)
| | - Isabelle Dehaene
- Department of Obstetrics and Gynaecology, Ghent University Hospital, Ghent, Belgium (Ms Meireson and Drs De Rycke, Dehaene, Derom, and Roelens)
| | - Sophie De Bock
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium (Dr De Bock)
| | - Catherine Derom
- Department of Obstetrics and Gynaecology, Ghent University Hospital, Ghent, Belgium (Ms Meireson and Drs De Rycke, Dehaene, Derom, and Roelens)
| | - Kristien Roelens
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium (Ms Meireson and Dr Roelens); Department of Obstetrics and Gynaecology, Ghent University Hospital, Ghent, Belgium (Ms Meireson and Drs De Rycke, Dehaene, Derom, and Roelens)
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Sileo FG, Accurti V, Baschat A, Binder J, Carreras E, Chianchiano N, Cruz-Martinez R, D'Antonio F, Gielchinsky Y, Hecher K, Johnson A, Lopriore E, Massoud M, Nørgaard LN, Papaioannou G, Prefumo F, Salsi G, Simões T, Umstad M, Vavilala S, Yinon Y, Khalil A. Perinatal outcome of monochorionic triamniotic triplet pregnancy: multicenter cohort study. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2023; 62:540-551. [PMID: 37204929 DOI: 10.1002/uog.26256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/21/2023]
Abstract
OBJECTIVE Monochorionic (MC) triplet pregnancies are extremely rare and information on these pregnancies and their complications is limited. We aimed to investigate the risk of early and late pregnancy complications, perinatal outcome and the timing and methods of fetal intervention in these pregnancies. METHODS This was a multicenter retrospective cohort study of MC triamniotic (TA) triplet pregnancies managed in 21 participating centers around the world from 2007 onwards. Data on maternal age, mode of conception, diagnosis of major fetal structural anomalies or aneuploidy, gestational age (GA) at diagnosis of anomalies, twin-to-twin transfusion syndrome (TTTS), twin anemia-polycythemia sequence (TAPS), twin reversed arterial perfusion (TRAP) sequence and or selective fetal growth restriction (sFGR) were retrieved from patient records. Data on antenatal interventions were collected, including data on selective fetal reduction (three to two or three to one), laser surgery and any other active fetal intervention (including amniodrainage). Data on perinatal outcome were collected, including numbers of live birth, intrauterine demise, neonatal death, perinatal death and termination of fetus or pregnancy (TOP). Neonatal data such as GA at birth, birth weight, admission to neonatal intensive care unit and neonatal morbidity were also collected. Perinatal outcomes were assessed according to whether the pregnancy was managed expectantly or underwent fetal intervention. RESULTS Of an initial cohort of 174 MCTA triplet pregnancies, 11 underwent early TOP, three had an early miscarriage, six were lost to follow-up and one was ongoing at the time of writing. Thus, the study cohort included 153 pregnancies, of which the majority (92.8%) were managed expectantly. The incidence of pregnancy affected by one or more fetal structural abnormality was 13.7% (21/153) and that of TRAP sequence was 5.2% (8/153). The most common antenatal complication related to chorionicity was TTTS, which affected just over one quarter (27.6%; 42/152, after removing a pregnancy with TOP < 24 weeks for fetal anomalies) of the pregnancies, followed by sFGR (16.4%; 25/152), while TAPS (spontaneous or post TTTS with or without laser treatment) occurred in only 4.6% (7/152) of pregnancies. No monochorionicity-related antenatal complication was recorded in 49.3% (75/152) of pregnancies. Survival was apparently associated largely with the development of these complications: there was at least one survivor beyond the neonatal period in 85.1% (57/67) of pregnancies without antenatal complications, in 100% (25/25) of those complicated by sFGR and in 47.6% (20/42) of those complicated by TTTS. The overall rate of preterm birth prior to 28 weeks was 14.5% (18/124) and that prior to 32 weeks' gestation was 49.2% (61/124). CONCLUSION Monochorionicity-related complications, which can impact adversely perinatal outcome, occur in almost half of MCTA triplet pregnancies, creating a challenge with regard to counseling, surveillance and management. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- F G Sileo
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, University of London, London, UK
- 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
- Department of Biomedical, Metabolic and Neural Sciences, International Doctorate School in Clinical and Experimental Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - V Accurti
- Fetal Medicine and Surgery Service, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - A Baschat
- Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA
| | - J Binder
- Department of Obstetrics and Feto-Maternal Medicine, Medical University of Vienna, Vienna, Austria
| | - E Carreras
- Maternal-Fetal Medicine Unit, Department of Obstetrics and Reproductive Medicine, Grup de Recerca en Medicina Materna I Fetal, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
- Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - N Chianchiano
- Fetal Medicine Unit, Bucchieri La Ferla-Fatebenefratelli Hospital, Palermo, Italy
| | - R Cruz-Martinez
- Fetal Surgery Center, Instituto Medicina Fetal México, Queretaro/Guadalajara, Jalisco, Mexico
| | - F D'Antonio
- Center for Fetal Care and High-Risk Pregnancy, Department of Obstetrics and Gynecology, University 'G. d'Annunzio' of Chieti-Pescara, Chieti, Italy
| | - Y Gielchinsky
- Fetal Medicine Center, Helen Schneider Hospital for Women, Rabin Medical Center, Petach Tikvah, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - K Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A Johnson
- Department of Obstetrics and Gynecology, The Fetal Center at Children's Memorial Hermann Hospital, University of Texas Health Science Center, McGovern Medical School, Houston, TX, USA
| | - E Lopriore
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - M Massoud
- Department of Obstetrics and Fetal Medicine, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - L N Nørgaard
- Center of Fetal Medicine and Pregnancy, Department of Obstetrics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - G Papaioannou
- Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens, Athens, Greece
| | - F Prefumo
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - G Salsi
- Obstetric Unit, Department of Medical and Surgical Sciences, University of Bologna and IRCCS Azienda Ospedaliero-Universitaria S.Orsola-Malpighi, Bologna, Italy
| | - T Simões
- Department of Maternal-Fetal Medicine and Maternity Dr. Alfredo da Costa, Nova Medica School, Lisbon, Portugal
| | - M Umstad
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, Victoria, Australia
| | - S Vavilala
- Department of Fetal Medicine, Fernandez Hospital, Hyderabad, Telangana, India
| | - Y Yinon
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer, Israel
| | - A Khalil
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, University of London, London, UK
- Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK
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Liu S, Xu Q, Wang Y, Song B, Wei Z. Pregnancy incidence and associated risk factors of dichorionic triamniotic triplet under assisted reproduction: A large sample of clinical data analysis. Front Endocrinol (Lausanne) 2023; 14:1049239. [PMID: 37008934 PMCID: PMC10063967 DOI: 10.3389/fendo.2023.1049239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/06/2023] [Indexed: 03/19/2023] Open
Abstract
BACKGROUND Dichorionic triamniotic (DCTA) triplet pregnancies are rare in spontaneous pregnancy. The aim was to characterize the incidence and risk factors of DCTA triplet pregnancies after assisted reproductive technology (ART). METHODS A retrospective analysis of 10,289 patients, including 3,429 fresh embryo transfer (ET) cycle and 6,860 frozen ET cycle, was performed from January 2015 to June 2020. The effect of different ART parameters on the incidence of DCTA triplet pregnancies was evaluated by multivariate logistic regression analyses. RESULTS Among all clinical pregnancies after ART, the incidence of DCTA was 1.24%. 1.22% occurred in the fresh ET cycle, while 1.25% occurred in the frozen ET cycle. The number of ET and cycle type has no effect on the occurrence of DCTA triplet pregnancies (p = 0.987; p = 0.056, respectively). There were significant differences in DCTA triplet pregnancies rate among receiving intracytoplasmic sperm injection (ICSI) and receiving in vitro fertilization (IVF) [1.92% vs. 1.02%, p < 0.001, OR = 0.461, 95% confidence interval (CI) 0.315-0.673], blastocyst transfer (BT) versus cleavage-ET (1.66% vs. 0.57%, P < 0.001, OR = 0.329, 95% CI 0.315-0.673), and maternal age ≥ 35 years versus maternal age < 35 years (1.00% vs. 1.30%, P = 0.040, OR = 1.773, 95% CI 1.025-3.066). Based on the regression analysis of cycle type, DCTA triplet pregnancies rate was higher in maternal age < 35 years than in maternal age ≥ 35 years (1.35% vs. 0.97%, P < 0.001, OR = 5.266, 95% CI 2.184-12.701), BT versus cleavage-ET (1.47% vs. 0.94%; P = 0.006, OR = 0.346, 95% CI 0.163-0.735), and receiving ICSI was higher than receiving IVF (3.82% vs. 0.78%, p < 0.001, OR = 0.085, 95% CI 0.039-0.189) in fresh ET cycle. However, DCTA triplet pregnancies rate did not show difference in maternal age, insemination methods, and number of ET, and only BT was found to be associated with a higher DCTA triplet pregnancies rate in the frozen ET cycle (1.73% vs. 0.30%, p < 0.001, OR = 0.179, 95% CI 0.083-0.389). CONCLUSION The prevalence of DCTA triplet pregnancies has increased after ART. Maternal age < 35 years, BT, and receiving ICSI are risk factors for DCTA triplet pregnancies, also in fresh ET cycle. However, in frozen ET cycle, BT is an independent risk factor for increased DCTA triplet pregnancies rate.
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Affiliation(s)
- Shuhua Liu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Obstetrics and Gynecology, Anhui Province Maternity and Child Health Hospital, Hefei, China
| | - Qianhua Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
- Ministry of Education Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, Hefei, China
| | - Yafen Wang
- First Clinical College, Anhui Medical University, Hefei, China
| | - Bing Song
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
- Ministry of Education Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, Hefei, China
- *Correspondence: Bing Song, ; Zhaolian Wei,
| | - Zhaolian Wei
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, China
- Ministry of Education Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, Hefei, China
- *Correspondence: Bing Song, ; Zhaolian Wei,
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