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Alhasoon M, Alqahtani B, Alreefi M, Homedi A, Alnami G, Alsaif S, Ali K. Retrospective Comparative Analysis of Neonatal Mortality and Morbidity in Preterm Singleton and Multiple Births -Single Center Experience. Glob Pediatr Health 2024; 11:2333794X241240571. [PMID: 38533296 PMCID: PMC10964436 DOI: 10.1177/2333794x241240571] [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: 05/04/2023] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024] Open
Abstract
Objective. To compare mortality and major neonatal morbidities between singleton preterm infants and preterm infants of multiple gestations born <33 weeks' gestation. Method. Case-control study of preterm multiples and singletons <33 weeks' born at King Abdul-Aziz Medical City Riyadh (KAMC-R) between January 2017 and December 2020. Out-born infants and infants with lethal congenital abnormalities were excluded from the study. Mortality and major neonatal morbidities including bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP), sepsis and surgical necrotizing enterocolitis (NEC) were compared between preterm singletons and multiples. Results. A total of 803 preterm infants were included: 567 (70.6%) were singletons, 158 (19.6%) were twins and 36 (4.5%) infants were higher multiples. Adjusted mortality before hospital discharge was significantly higher among preterm infants of multiple gestations compared to preterm singletons (12.3% vs 7.9%; P = .003; AOR, 2.2; 95% CI, 1.3-3.7). Retinopathy of prematurity (ROP) needing treatment was significantly higher among preterm infants of multiple pregnancies compared to preterm singletons (11% vs 6.5%, P = .033, AOR 1.1, 95% CI, 1.04-2.99). In addition, the incidence of bronchopulmonary dysplasia (BPD) at 36 weeks post menstrual age (PMA) (29.7% vs 20.5%; P = .003; AOR, 1.7; 95% CI, 1.2-2.5) and culture positive sepsis (24.2% vs 17.5%; P = .044; AOR, 1.5; 95% CI, 1.01-2.2) were significantly higher among preterm infants of multiple pregnancy. There were no differences in mortality and adverse neonatal outcomes between twins and higher multiples. Conclusion. Preterm infants of multiple gestations suffered higher mortality and neonatal morbidities compared to preterm singleton infants despite a higher utilization of maternal antenatal steroids and better antenatal care.
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Affiliation(s)
- Mohammad Alhasoon
- Department of Pediatrics, College of Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Bader Alqahtani
- Neonatal Intensive Care Department, King Abdulaziz Medical City-Riyadh, Ministry of the National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Mohamad Alreefi
- Neonatal Intensive Care Department, King Abdulaziz Medical City-Riyadh, Ministry of the National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Abdulaziz Homedi
- Neonatal Intensive Care Department, King Abdulaziz Medical City-Riyadh, Ministry of the National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Ghadah Alnami
- Neonatal Intensive Care Department, King Abdulaziz Medical City-Riyadh, Ministry of the National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Saif Alsaif
- Neonatal Intensive Care Department, King Abdulaziz Medical City-Riyadh, Ministry of the National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Kamal Ali
- Neonatal Intensive Care Department, King Abdulaziz Medical City-Riyadh, Ministry of the National Guard - Health Affairs, Riyadh, Saudi Arabia
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van Haren JS, Delbressine FLM, Schoberer M, te Pas AB, van Laar JOEH, Oei SG, van der Hout-van der Jagt MB. Transferring an extremely premature infant to an extra-uterine life support system: a prospective view on the obstetric procedure. Front Pediatr 2024; 12:1360111. [PMID: 38425664 PMCID: PMC10902175 DOI: 10.3389/fped.2024.1360111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024] Open
Abstract
To improve care for extremely premature infants, the development of an extrauterine environment for newborn development is being researched, known as Artificial Placenta and Artificial Womb (APAW) technology. APAW facilitates extended development in a liquid-filled incubator with oxygen and nutrient supply through an oxygenator connected to the umbilical vessels. This setup is intended to provide the optimal environment for further development, allowing further lung maturation by delaying gas exposure to oxygen. This innovative treatment necessitates interventions in obstetric procedures to transfer an infant from the native to an artificial womb, while preventing fetal-to-neonatal transition. In this narrative review we analyze relevant fetal physiology literature, provide an overview of insights from APAW studies, and identify considerations for the obstetric procedure from the native uterus to an APAW system. Lastly, this review provides suggestions to improve sterility, fetal and maternal well-being, and the prevention of neonatal transition.
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Affiliation(s)
- Juliette S. van Haren
- Department of Industrial Design, Eindhoven University of Technology, Eindhoven, Netherlands
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
| | | | - Mark Schoberer
- Institute for Applied Medical Engineering and Clinic for Neonatology, University Hospital Aachen, Aachen, Germany
| | - Arjan B. te Pas
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Judith O. E. H. van Laar
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - S. Guid Oei
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - M. Beatrijs van der Hout-van der Jagt
- Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, Netherlands
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
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Jang HG, Choi S, Noh OK, Hwang JH, Lee JH. Comparison of neonatal outcomes between multiples and singletons among very low birth weight infants: the Korean Neonatal Network cohort study. J Matern Fetal Neonatal Med 2023; 36:2245530. [PMID: 37558283 DOI: 10.1080/14767058.2023.2245530] [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: 01/20/2023] [Revised: 04/04/2023] [Accepted: 08/02/2023] [Indexed: 08/11/2023]
Abstract
OBJECTIVE To compare neonatal outcomes between multiples and singletons among very low birth weight infants, this was a prospective cohort study that was conducted by collecting data registered in the Korean Neonatal Network database. METHODS From January 2013 to December 2016, there were 8265 infants in the Korean Neonatal Network database, and 2958 of them were from multiples. Among them, 2636 infants were twins, 308 infants were triplets, and 14 infants were quadruplets. Maternal and neonatal variables including and mortality major morbidity were compared. Finally, the predicted rates of major morbidity between singletons and multiples. RESULTS Multiples had higher gestational age, birth weight, Apgar score at 5 min, rates of cesarean section and artificial reproductive technology but lower maternal hypertension, oligohydramnios, chorioamnionitis rates and Clinical Risk Index for Babies scores II without base excess than the singletons. In univariate analysis, multiples had a lower incidence of respiratory distress syndrome, bronchopulmonary dysplasia, and sepsis. The mortality rate was not significantly different for overall gestational ages except for those born at ≤26 weeks of gestation. In multivariate logistic analysis, the incidences of intraventricular hemorrhage (grade ≥3), and retinopathy of prematurity requiring treatment were significantly higher than the singletons. CONCLUSIONS Mortality was not significantly different between multiples and singletons according to overall gestational age, except for multiples born at ≤26 weeks. A significant higher risk of intraventricular hemorrhage and retinopathy of prematurity requiring treatment was found in multiples. A new strategy to improve the mortality of immature multiples born at ≤26 weeks of gestation should be developed.
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Affiliation(s)
- Hyeon Gu Jang
- Department of Pediatrics, Samcheok-si Public Health Center, Samcheok, South Korea
| | - Seoheui Choi
- Department of Pediatrics, Ajou University School of Medicine, Suwon, South Korea
| | - O Kyu Noh
- Department of Bioinformatics, Department of Radiation Oncology, Ajou University School of Medicine, Suwon, South Korea
| | - Jong Hee Hwang
- Department of Pediatrics, Inje University College of Medicine, Ilsan Paik Hospital, Goyang, South Korea
| | - Jang Hoon Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, South Korea
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Melamed N, Weitzner O, Church P, Banihani R, Barrett J, Yang J, Wong J, Piedboeuf B, Shah PS. Neonatal and Early Childhood Outcomes of Twin and Singleton Infants Born Preterm. J Pediatr 2023; 262:113377. [PMID: 36871787 DOI: 10.1016/j.jpeds.2023.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 02/02/2023] [Accepted: 02/13/2023] [Indexed: 03/07/2023]
Abstract
OBJECTIVE To compare neonatal and early-childhood outcomes of twins and singletons born preterm and explore the association of chorionicity with outcomes. STUDY DESIGN This was a national retrospective cohort study of singleton and twin infants admitted at 230/7-286/7 weeks to level III neonatal intensive care units in Canada (2010-2020). The primary neonatal outcome was a composite of neonatal death or severe neonatal morbidities. The primary early-childhood outcome was a composite of death or significant neurodevelopmental impairment. RESULTS The study cohort included 3554 twin and 12 815 singleton infants. Twin infants born at 230/7-256/7 weeks had a greater risk of the composite neonatal outcome (adjusted risk ratio 1.04, 95% CI 1.01-1.07). However, these differences were limited to the subgroups of same-sex and monochorionic twin pregnancies. Twin infants of 230/7-256/7 weeks were also at an increased risk of the composite early-childhood outcome (adjusted risk ratio 1.22, 95% CI 1.09-1.37). Twin infants of 260/7-286/7 weeks were not at an increased risk of adverse neonatal outcomes or the composite early-childhood outcome compared with singleton infants. CONCLUSIONS Among infants born at 230/7-256/7 weeks, twins have a greater risk of adverse neonatal outcomes and the composite early-childhood outcome than singleton infants. However, the increased risk of adverse neonatal outcomes is mostly limited to monochorionic twins and may thus be driven by complications related to monochorionic placentation.
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Affiliation(s)
- Nir Melamed
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON, Canada.
| | - Omer Weitzner
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Paige Church
- Department of Newborn & Developmental Pediatrics, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Rudaina Banihani
- Department of Newborn & Developmental Pediatrics, Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Jon Barrett
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, ON, Canada
| | - Junmin Yang
- Maternal-infant Care (MiCare) Research Centre, Mount Sinai Hospital, Toronto, ON, Canada
| | - Jonathan Wong
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - Bruno Piedboeuf
- Department of Pediatrics, CHU de Québec - Université Laval, Quebec City, QC, Canada
| | - Prakesh S Shah
- Maternal-infant Care (MiCare) Research Centre, Mount Sinai Hospital, Toronto, ON, Canada; Department of Pediatrics, University of Toronto, Toronto, ON, Canada
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Yum SK, Lee JH. Role of birthweight discordance in preterm twins' outcomes in the Korean neonatal network. Pediatr Neonatol 2023; 64:570-576. [PMID: 36967292 DOI: 10.1016/j.pedneo.2022.12.014] [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: 09/16/2022] [Revised: 11/28/2022] [Accepted: 12/08/2022] [Indexed: 06/18/2023] Open
Abstract
BACKGROUND Twin pregnancies can be complicated by birthweight (BW) discordance. We analyzed the impact of BW discordance on clinical outcomes of very-low-birthweight (VLBW) twins. METHODS The study population was preterm infants in the Korean Neonatal Network registry. Multivariate logistic regression analyses were used to determine the contribution of BW discordance on respiratory morbidities and mortality of VLBW infants. Also, we assessed the effect of small for gestational age (SGA) on morbidity and mortality in discordant twins (DTs) and compared separately the clinical outcomes of smaller and larger DTs with different singletons matched for perinatal factors including BW percentile. RESULTS A total of 935 twin pairs [1548 concordant twins (CTs) and 322 DTs] were included. BW discordance was associated with increased odds of moderate bronchopulmonary dysplasia, mortality, and composite outcomes. Compared with the CTs, the smaller, but not larger, DTs had greater odds of morbidities and mortality. DTs had higher odds of adverse neonatal outcome when combined with SGA. Meanwhile, DTs had morbidities and mortality similar to singletons matched for BW percentile. CONCLUSION BW discordance in VLBW twins adversely affects neonatal mortality or respiratory morbidity which is predominant in smaller DTs. The impact of BW discordance could be increased through SGA.
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Affiliation(s)
- Sook Kyung Yum
- Department of Pediatrics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, South Korea
| | - Jung Hyun Lee
- Department of Pediatrics, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, South Korea.
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Perinatal characteristics and neonatal outcomes of singletons and twins in Chinese very preterm infants: a cohort study. BMC Pregnancy Childbirth 2023; 23:89. [PMID: 36726075 PMCID: PMC9890855 DOI: 10.1186/s12884-023-05409-8] [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: 04/16/2022] [Accepted: 01/25/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The prevalence of preterm birth has been rising, and there is a paucity of nationwide data on the perinatal characteristics and neonatal outcomes of twin deliveries of very preterm infants (VPIs) in China. This study compared the perinatal characteristics and outcomes of singletons and twins admitted to neonatal intensive care units (NICUs) in China. METHODS The study population comprised all infants born before 32 weeks in the Chinese Neonatal Network (CHNN) between January 2019 and December 2019. Three-level and population-average generalized estimating equation (GEE)/alternating logistic regression (ALR) models were used to determine the association of twins with neonatal morbidities and the use of NICU resources. RESULTS During the study period, there were 6634 (71.2%) singletons and 2680 (28.8%) twins, with mean birth weights of 1333.70 g and 1294.63 g, respectively. Twins were significantly more likely to be delivered by caesarean section (p < 0.01), have antenatal steroid usage (p = 0.048), have been conceived by assisted reproductive technology (ART) (p < 0.01), have a higher prevalence of maternal diabetes (p < 0.01) and be inborn (p < 0.01) than singletons. In addition, twins had a lower prevalence of small for gestational age, maternal hypertension, and primigravida mothers than singletons (all p < 0.01). After adjusting for potential confounders, twins had higher mortality rates (adjusted odds ratio [AOR] 1.28, 95% confidence interval [CI] 1.10-1.49), higher incidences of short-term composite outcomes (AOR 1.28, 95% CI 1.09-1.50), respiratory distress syndrome (RDS) (AOR 1.30, 95% CI 1.12-1.50), and bronchopulmonary dysplasia (BPD) (AOR 1.10, 95% CI 1.01-1.21), more surfactant usage (AOR 1.22, 95% CI 1.05-1.41) and prolonged hospital stays (adjusted mean ratio 1.03, 95% CI 1.00-1.06), compared to singletons. CONCLUSION Our work suggests that twins have a greater risk of mortality, a higher incidence of RDS and BPD, more surfactant usage, and longer NICU stays than singletons among VPIs in China.
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Bae SP, Hahn WH, Park S, Jung YH, Park JY, Oh KJ, Choi CW. Effects of antenatal corticosteroids on neonatal outcomes in twin and singleton pregnancies: a Korean national cohort study. BMJ Paediatr Open 2023; 7:e001754. [PMID: 36690386 PMCID: PMC9872481 DOI: 10.1136/bmjpo-2022-001754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 12/17/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE To investigate whether effects of antenatal corticosteroids on neonatal outcomes in preterm infants with very low birth weight were different by plurality. DESIGN Nationwide prospective cohort study. PATIENTS Twins and singletons with very low birth weight (<1500 g) who were born between 23+0 and 33+6 weeks of gestation and registered in the Korean Neonatal Network from January 2014 to December 2019. MAIN OUTCOME MEASURES Morbidity and mortality before discharge from neonatal intensive care unit. RESULTS Among a total of 9531 preterm infants with very low birth weight, there were 2364 (24.8%) twins and 7167 (75.2%) singletons. While 83.9% of singletons were exposed to at least one dose of antenatal corticosteroids, so were 87.9% of twins.Interaction analysis demonstrated that there was no significant difference in the effect of antenatal corticosteroids on morbidities or mortality between twins and singletons in either gestational age group (23-28 weeks or 29-33 weeks).Antenatal corticosteroids significantly decreased the risk of surfactant use (adjusted relative risk (aRR): 0.972 (95% CI: 0.961 to 0.984)), high-grade intraventricular haemorrhage (aRR: 0.621 (95% CI: 0.487 to 0.794)), periventricular leucomalacia (aRR: 0.728 (95% CI: 0.556 to 0.954)) and mortality (aRR: 0.758 (95% CI: 0.679 to 0.846)) in the gestational age group of 23-28 weeks. In the gestational age group of 29-33 weeks, antenatal corticosteroids significantly decreased the risk of surfactant use (aRR: 0.914 (95% CI: 0.862 to 0.970)) and mortality (aRR: 0.409 (95% CI: 0.269 to 0.624)) but increased the risk of sepsis (aRR: 1.416 (95% CI: 1.018 to 1.969)). CONCLUSION This study demonstrates that effect of antenatal corticosteroids on neonatal outcomes of preterm infants with very low birth weight does not differ significantly by plurality (twin or singleton pregnancy).
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Affiliation(s)
- Seong Phil Bae
- Pediatrics, Soonchunhyang University Hospital Seoul, Yongsan-gu, Korea
- Pediatrics, Soonchunhyang University College of Medicine, Cheonan, Korea (the Republic of)
| | - Won-Ho Hahn
- Pediatrics, Soonchunhyang University Hospital Seoul, Yongsan-gu, Korea
- Pediatrics, Soonchunhyang University College of Medicine, Cheonan, Korea (the Republic of)
| | - Suyeon Park
- Biostatistics, Soonchunhyang University Hospital Seoul, Yongsan-gu, Korea (the Republic of)
- Applied Statistics, Chung-Ang University, Seoul, Korea (the Republic of)
| | - Young Hwa Jung
- Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea (the Republic of)
- Pediatrics, Seoul National University College of Medicine, Seoul, Korea (the Republic of)
| | - Jee Yoon Park
- Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea (the Republic of)
- Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea (the Republic of)
| | - Kyung Joon Oh
- Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea (the Republic of)
- Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea (the Republic of)
| | - Chang Won Choi
- Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea (the Republic of)
- Pediatrics, Seoul National University College of Medicine, Seoul, Korea (the Republic of)
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Jordan B, Bernard L, Segel S, Go M, Schilling D, McEvoy C. Premature monochorionic monoamniotic twins have lower lung compliance at birth than matched dichorionic diamniotic twins. J Neonatal Perinatal Med 2022; 16:87-92. [PMID: 36314220 PMCID: PMC10168699 DOI: 10.3233/npm-221113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Premature infants are born with immature lungs that demonstrate abnormal pulmonary function with differences in passive respiratory system compliance and resistance, and functional residual capacity. To our knowledge, no studies have evaluated differences in neonatal pulmonary function based on the type of twin gestation, or chorionicity. Given the effect of chorionicity on outcomes, we aimed to study the effect of twin type, monochorionic monoamniotic (MCMA) vs dichorionic diamniotic (DCDA), on neonatal early pulmonary function tests. METHODS: In this prospective cohort study, 5 sets of DCDA twins were matched to 5 sets of MCMA twins on gestational age at delivery, latency from antenatal corticosteroid exposure, birthweight, race and gender. Mean values were compared for passive respiratory system compliance and resistance, functional residual capacity, and tidal volume. RESULTS: MCMA infants had a significantly lower compliance (0.64 vs 1.25 mL/cm H2O /kg; p = 0.0001) and significantly higher resistance (0.130 vs 0.087 cm H2O /mL/sec; p = 0.0003) than DCDA infants. Functional residual capacity was lower for MCMA than DCDA infants (17.5 vs 23.4 mL/kg; p = 0.17). Further, 80% of MCMA infants required intubation for surfactant administration compared to 20% of DCDA infants, indicating the clinical significance of these objective measures. CONCLUSIONS: Due to the matched case-control design, causality cannot be established. However, we speculate that these differences in lung function may derive from differential exposure to preterm labor and endogenous maternal corticosteroid exposure. Further study is necessary to establish the true causal relationship.
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Affiliation(s)
- B.K. Jordan
- Doernbecher Children’s Hospital, Oregon Health & Science University, Portland, Oregon, USA
| | - L. Bernard
- Asante Physician Partners, Medford, Oregon, USA
| | - S. Segel
- Peace Health Southwest Medical Center, Vancouver, Washington, USA
| | - M.D. Go
- Doernbecher Children’s Hospital, Oregon Health & Science University, Portland, Oregon, USA
| | - D. Schilling
- Doernbecher Children’s Hospital, Oregon Health & Science University, Portland, Oregon, USA
| | - C.T. McEvoy
- Doernbecher Children’s Hospital, Oregon Health & Science University, Portland, Oregon, USA
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Fitzpatrick KE, Quigley MA, Kurinczuk JJ. Planned mode of birth after previous cesarean section: A structured review of the evidence on the associated outcomes for women and their children in high-income setting. Front Med (Lausanne) 2022; 9:920647. [PMID: 36148449 PMCID: PMC9486480 DOI: 10.3389/fmed.2022.920647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 08/08/2022] [Indexed: 12/05/2022] Open
Abstract
In many high-income settings policy consensus supports giving pregnant women who have had a previous cesarean section a choice between planning an elective repeat cesarean section (ERCS) or planning a vaginal birth after previous cesarean (VBAC), provided they have no contraindications to VBAC. To help women make an informed decision regarding this choice, clinical guidelines advise women should be counseled on the associated risks and benefits. The most recent and comprehensive review of the associated risks and benefits of planned VBAC compared to ERCS in high-income settings was published in 2010 by the US Agency for Healthcare Research and Quality (AHRQ). This paper describes a structured review of the evidence in high-income settings that has been published since the AHRQ review and the literature in high-income settings that has been published since 1980 on outcomes not included in the AHRQ review. Three databases (MEDLINE, EMBASE, and PsycINFO) were searched for relevant studies meeting pre-specified eligible criteria, supplemented by searching of reference lists. Forty-seven studies were identified as meeting the eligibility criteria and included in the structured review. The review suggests that while planned VBAC compared to ERCS is associated with an increased risk of various serious birth-related complications for both the mother and her baby, the absolute risk of these complications is small for either birth approach. The review also found some evidence that planned VBAC compared to ERCS is associated with benefits such as a shorter length of hospital stay and a higher likelihood of breastfeeding. The limited evidence available also suggests that planned mode of birth after previous cesarean section is not associated with the child's subsequent risk of experiencing adverse neurodevelopmental or health problems in childhood. This information can be used to manage and counsel women with previous cesarean section about their subsequent birth choices. Collectively, the evidence supports existing consensus that there are risks and benefits associated with both planned VBAC and ERCS, and therefore women without contraindications to VBAC should be given an informed choice about planned mode of birth after previous cesarean section. However, further studies into the longer-term effects of planned mode of birth after previous cesarean section are needed along with more research to address the other key limitations and gaps that have been highlighted with the existing evidence.
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Affiliation(s)
- Kathryn E. Fitzpatrick
- National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
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Assessment of fetal growth in twins: which method to use? Best Pract Res Clin Obstet Gynaecol 2022; 84:104-114. [DOI: 10.1016/j.bpobgyn.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 08/15/2022] [Indexed: 11/21/2022]
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Meshram R, James A. Neonatal outcome of twins and singleton neonates: An experience from tertiary care teaching center of Eastern Maharashtra, India. J Clin Neonatol 2022. [DOI: 10.4103/jcn.jcn_50_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Gremillet L, Netter A, Tosello B, D'Ercole C, Bretelle F, Chau C. Selective intrauterine growth restriction of monochorionic diamniotic twin pregnancies: What is the neonatal prognosis? J Gynecol Obstet Hum Reprod 2021; 51:102304. [PMID: 34974148 DOI: 10.1016/j.jogoh.2021.102304] [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: 07/29/2021] [Revised: 12/12/2021] [Accepted: 12/29/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVE This study compares the neonatal morbidity and mortality of the smallest twins of monochorionic diamniotic (MCDA) pregnancies complicated with selective intrauterine growth restriction (sIUGR) with newborns from singleton pregnancies with intrauterine growth restriction (IUGR). METHODS We conducted a retrospective cohort study of patients managed at the prenatal diagnosis center in a single tertiary care hospital between 2012 and 2019. MCDA twin pregnancies complicated with sIUGR (sIUGR group) were compared with singleton pregnancies with IUGR (IUGR group). The primary outcome was the comparison in neonatal morbidity and mortality between the two groups. RESULTS The analysis included 251 patients: 67 in the sIUGR group and 184 in the IUGR group. The two groups were comparable in gestational age and birth weight (p > 0.05). Multivariate analysis controlling for factors that may influence neonatal status showed no significant difference between the two groups in any of the neonatal morbidity criteria or the composite morbidity-mortality endpoint (adjusted OR = 0.946 [95% CI = 0.317-2.827]; p = 0.921). CONCLUSION Despite supposedly different pathophysiological mechanisms, neonates from MCDA pregnancies complicated with sIUGR and those from singleton pregnancies with IUGR appear to have identical neonatal morbidity and mortality .
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Affiliation(s)
- Letizia Gremillet
- Department of Gynecology and Obstetrics, AP-HM, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - Antoine Netter
- Department of Gynecology and Obstetrics, AP-HM, Assistance Publique-Hôpitaux de Marseille, Marseille, France; Aix Marseille Univ, Avignon University, CNRS, IRD, IMBE, Marseille, France.
| | - Barthélemy Tosello
- Department of Neonatal Medicine, North Hospital, Assistance Publique-Hôpitaux de Marseille, Marseille, France; CNRS, EFS, ADES, Aix-Marseille Univ, Marseille, France
| | - Claude D'Ercole
- Department of Gynecology and Obstetrics, AP-HM, Assistance Publique-Hôpitaux de Marseille, Marseille, France; EA3279, CEReSS, Health Service Research and Quality of Life Center, Aix-Marseille University, 13284, Marseille, France
| | - Florence Bretelle
- Department of Gynecology and Obstetrics, AP-HM, Assistance Publique-Hôpitaux de Marseille, Marseille, France; Research Unit on Tropical and Emerging Infectious Diseases, UM63, CNRS 7278, IRD 198, INSERM 1095, Marseille, France
| | - Cécile Chau
- Department of Gynecology and Obstetrics, AP-HM, Assistance Publique-Hôpitaux de Marseille, Marseille, France
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13
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Hwang JH, Jung E, Lee BS, Kim EAR, Kim KS. Survival and Morbidities in Infants with Birth Weight Less than 500 g: a Nationwide Cohort Study. J Korean Med Sci 2021; 36:e206. [PMID: 34402234 PMCID: PMC8352787 DOI: 10.3346/jkms.2021.36.e206] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 06/28/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND This study aimed to investigate the survival and morbidities of infants in the Korean Neonatal Network (KNN) with birth weight (BW) < 500 g. METHODS The demographic and clinical data of 208 live-born infants with a BW < 500 g at a gestational age of ≥ 22 weeks who were treated in the neonatal intensive care units of the KNN between 2013 and 2017 were reviewed. RESULTS The survival rate of the infants was 28%, with a median gestational age and BW of 243/7 weeks (range, 220/7-336/7) and 440 g (range, 220-499), respectively. Multivariable Cox proportional hazards analysis demonstrated that survival to discharge was associated with longer gestation, higher BW, female sex, singleton gestation, use of any antenatal corticosteroids, and higher Apgar scores at 5 minutes. The overall survival rates were significantly different between the BW categories of < 400 g and 400-499 g. However, there was no significant difference in the incidence of any morbidity between the BW groups. Half of the deaths of infants with BW < 500 g occurred within a week of life, mainly due to cardiopulmonary and neurologic causes. The major causes of death in infants after 1 week of age were infection and gastrointestinal disease. Among the surviving infants, 79% had moderate to severe bronchopulmonary dysplasia, 21% underwent surgical ligation of patent ductus arteriosus, 12% had severe intraventricular hemorrhage (grade III-IV), 38% had sepsis, 9% had necrotizing enterocolitis (stage ≥ 2), and 47% underwent laser treatment for retinopathy of prematurity. The median length of hospital stay was 132 days (range, 69-291), and 53% required assistive devices at discharge. CONCLUSION Despite recent advances in neonatal intensive care, the survival and morbidity rates of infants with BW < 500 g need further improvement.
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Affiliation(s)
- Ji Hye Hwang
- Department of Pediatrics, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Euiseok Jung
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
| | - Byong Sop Lee
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - Ellen Ai Rhan Kim
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - Ki Soo Kim
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
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14
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Isayama T, O'Reilly D, Beyene J, Lee SK, Shah PS, Guttmann A, McDonald SD. Admissions and Emergency Visits by Late Preterm Singletons and Twins in the First 5 Years: A Population-Based Cohort Study. Am J Perinatol 2021; 38:796-803. [PMID: 31891952 DOI: 10.1055/s-0039-3402718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To compare admission and emergency visits of late preterm (340/7-366/7 weeks) versus term infants (370/7-416/7 weeks) in the first 5 years. STUDY DESIGN This population-based cohort study included all singletons and twins born alive at 340/7 to 416/7 weeks' gestation registered in a health administrative database in Ontario, Canada, between April 1, 2002 and December 31, 2012. Admissions and emergency visits from initial postnatal discharge to 5 years were compared between late preterm and term infants adjusting for maternal and infant characteristics. RESULTS A total of 1,316,931 infants (75,364 late preterm infants) were included. Late preterm infants had more frequent admissions than term infants in the first 5 years in both singletons (adjusted incidence rate ratio [95% confidence interval] = 1.46 [1.42-1.49]) and twins (1.21 [1.11-1.31]). The difference in admissions between late preterm and term infants were smaller in twins than singletons and decreased with children's ages. Twins had less frequent admissions than singletons for late preterm infants, but not for term infants. The emergency visits were more frequent in late preterm than term infants in all the periods. CONCLUSION Admissions and emergency visits were more frequent in late preterm than term infants through the first 5 years. Admissions were less frequent in late preterm twins than singletons.
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Affiliation(s)
- Tetsuya Isayama
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.,Department of Newborn and Developmental Paediatrics, Sunnybrook Health Science Centre, Toronto, Ontario, Canada.,Division of Neonatology, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Daria O'Reilly
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.,Programs for Assessment of Technology in Health (PATH) Research Institute, St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Joseph Beyene
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Shoo K Lee
- Department of Paediatrics, Maternal-Infant Care Research Centre, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Prakesh S Shah
- Department of Paediatrics, Maternal-Infant Care Research Centre, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Astrid Guttmann
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.,Institute for Clinical Evaluative Sciences, Sunnybrook Health Science Centre, Toronto, Ontario, Canada
| | - Sarah D McDonald
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.,Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada.,Department of Radiology, McMaster University, Hamilton, Ontario, Canada
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15
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Safi N, Saunders C, Hayen A, Anazodo A, Lui K, Li Z, Remond M, Nicholl M, Wang AY, Sullivan E. Gestational breast cancer in New South Wales: A population-based linkage study of incidence, management, and outcomes. PLoS One 2021; 16:e0245493. [PMID: 33481842 PMCID: PMC7822528 DOI: 10.1371/journal.pone.0245493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 12/30/2020] [Indexed: 12/22/2022] Open
Abstract
Background The incidence of gestational breast cancer (GBC) is increasing in high-income countries. Our study aimed to examine the epidemiology, management and outcomes of women with GBC in New South Wales (NSW), Australia. Methods A retrospective cohort study using linked data from three NSW datasets. The study group comprised women giving birth with a first-time diagnosis of GBC while the comparison group comprised women giving birth without any type of cancer. Outcome measures included incidence of GBC, maternal morbidities, obstetric management, neonatal mortality, and preterm birth. Results Between 1994 and 2013, 122 women with GBC gave birth in NSW (crude incidence 6.8/ 100,000, 95%CI: 5.6–8.0). Women aged ≥35 years had higher odds of GBC (adjusted odds ratio (AOR) 6.09, 95%CI 4.02–9.2) than younger women. Women with GBC were more likely to give birth by labour induction or pre-labour CS compared to women with no cancer (AOR 4.8, 95%CI: 2.96–7.79). Among women who gave birth by labour induction or pre-labour CS, the preterm birth rate was higher for women with GBC than for women with no cancer (52% vs 7%; AOR 17.5, 95%CI: 11.3–27.3). However, among women with GBC, preterm birth rate did not differ significantly by timing of diagnosis or cancer stage. Babies born to women with GBC were more likely to be preterm (AOR 12.93, 95%CI 8.97–18.64), low birthweight (AOR 8.88, 95%CI 5.87–13.43) or admitted to higher care (AOR 3.99, 95%CI 2.76–5.76) than babies born to women with no cancer. Conclusion Women aged ≥35 years are at increased risk of GBC. There is a high rate of preterm birth among women with GBC, which is not associated with timing of diagnosis or cancer stage. Most births followed induction of labour or pre-labour CS, with no major short term neonatal morbidity.
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Affiliation(s)
- Nadom Safi
- School of Public Health, University of Technology Sydney, Sydney, NSW, Australia
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
| | - Christobel Saunders
- Faculty of Health and Medical Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Andrew Hayen
- School of Public Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Antoinette Anazodo
- School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
- Nelune Comprehensive Cancer Centre, Prince of Wales Hospital, Randwick, NSW, Australia
| | - Kei Lui
- School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Zhuoyang Li
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
| | - Marc Remond
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
| | - Michael Nicholl
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Alex Y. Wang
- School of Public Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Elizabeth Sullivan
- School of Public Health, University of Technology Sydney, Sydney, NSW, Australia
- Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
- * E-mail:
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16
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Baud O, Laughon M, Lehert P. Survival without Bronchopulmonary Dysplasia of Extremely Preterm Infants: A Predictive Model at Birth. Neonatology 2021; 118:385-393. [PMID: 34004607 DOI: 10.1159/000515898] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/16/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Early prediction of survival without bronchopulmonary dysplasia (BPD) at 36 weeks of postmenstrual age remains challenging for infants born extremely preterm. We aimed to provide a new predictive model including variables available only at or soon after birth based on the literature and existing models. METHODS We conducted a systematic review to identify all variables considered to be significant predictors of BPD and survival at birth in extremely preterm infants. We then assessed the external validity of the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Neonatal Research Network BPD estimator on the PREMILOC cohort, a recent French study with a large sample of extremely preterm infants and a vast number of variables at baseline. Finally, we attempted to improve this model by testing the added value of other early predictors reported in previous studies. RESULTS Restricted to baseline predictors, the NICHD Neonatal Research Network BPD estimator confirmed its calibration and fair discrimination (area under the receiver operating characteristic [auROC] [95% CI] = 0.73 [0.68-0.77] when used with a published model and auROC [95% CI] = 0.77 [0.73-0.81] when fitted to the PREMILOC dataset). We were able to improve the discriminatory power by adding candidate variables at birth associated with BPD in previous studies. The modified best predicting model included gestational age at birth, birthweight, respiratory support at baseline, gender, center effect, and multiple pregnancy as baseline predictors. This model showed significantly better discrimination (auROC [95% CI] = 0.85 [0.82-0.88]) and better confirmed calibration (Hosmer-Lemeshow test, p = 0.45). CONCLUSION This new model, based on 6 early predictors, appears to improve the prediction soon after birth of BPD-free survival in extremely preterm infants.
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Affiliation(s)
- Olivier Baud
- Division of Neonatology and Pediatric Intensive Care, Children's University Hospital of Geneva and University of Geneva, Geneva, Switzerland.,Université Paris Diderot, Sorbonne Paris Cité, INSERM U1141, Paris, France
| | - Matthew Laughon
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Philippe Lehert
- Faculty of Medicine, University of Melbourne, Melbourne, Victoria, Australia.,Faculty of Economics, University of Louvain, Ottignies-Louvain-la-Neuve, Belgium
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17
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Couck I, Van Nylen L, Deprest J, Lewi L. Monochorionic twins after in-vitro fertilization: do they have poorer outcomes? ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2020; 56:831-836. [PMID: 31909558 DOI: 10.1002/uog.21973] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/10/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To compare the outcome of monochorionic diamniotic (MCDA) twin pregnancies conceived by in-vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) with that of spontaneously conceived MCDA twins. METHODS This was a retrospective cohort study of MCDA twin pregnancies conceived after IVF/ICSI or spontaneously, followed from the first trimester onwards at a single center between January 2002 and September 2018. The primary outcome was survival per fetus from the first trimester until 28 days after birth. Secondary outcome measures were number of survivors, miscarriage, termination of pregnancy, intrauterine and neonatal death, major congenital anomalies, twin-twin transfusion syndrome, selective fetal growth restriction, gestational age at birth, delivery before 32 weeks' gestation, mode of delivery, admission to the neonatal intensive care unit, birth weight and birth-weight discordance. RESULTS Of the 654 MCDA pregnancies included in the analysis, 80 were conceived by IVF/ICSI and 574 spontaneously. Overall fetal and neonatal survival was significantly lower in the IVF/ICSI group than in the spontaneous-conception group (79% vs 90%; P = 0.001). In the IVF/ICSI group, compared with the spontaneous-conception group, loss of one or both twins occurred twice as often (29% vs 14%; P = 0.001) and there was a higher risk of second-trimester miscarriage (8% vs 1%; P = 0.002). CONCLUSIONS MCDA twins conceived after IVF/ICSI have lower overall survival rates and higher rates of second-trimester miscarriage than do spontaneously conceived MCDA twins. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- I Couck
- Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, Cluster Woman and Child, Biomedical Sciences, KU Leuven, Leuven, Belgium
| | - L Van Nylen
- Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - J Deprest
- Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, Cluster Woman and Child, Biomedical Sciences, KU Leuven, Leuven, Belgium
- Institute for Women's Health, University College London Hospital, London, UK
| | - L Lewi
- Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium
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18
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Egesa WI, Odong RJ, Kalubi P, Ortiz Yamile EA, Atwine D, Turyasiima M, Kiconco G, Maren MB, Nduwimana M, Ssebuufu R. Preterm Neonatal Mortality and Its Determinants at a Tertiary Hospital in Western Uganda: A Prospective Cohort Study. PEDIATRIC HEALTH MEDICINE AND THERAPEUTICS 2020; 11:409-420. [PMID: 33117056 PMCID: PMC7548335 DOI: 10.2147/phmt.s266675] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/11/2020] [Indexed: 01/02/2023]
Abstract
Background Prematurity contributes greatly to the neonatal mortality burden in sub-Saharan Africa. This study evaluated the proportion of preterm neonatal death, medical conditions at admission, and determinants of mortality of preterm neonates in the neonatal intensive care unit (NICU) of a tertiary hospital in Western Uganda. Materials and Methods A prospective cohort study of 351 consecutively enrolled preterm neonates was conducted from March to June 2019. Interviewer-administered questionnaires and physical assessment of neonates were used to obtain socio-demographic and clinical data for mothers and their preterm neonates. Descriptive statistics for participants’ characteristics were generated, while bivariate and multivariate logistic regression models were fitted so as to establish the determinants of mortality outcome. A p-value <0.05 was considered statistically significant. Results In-hospital neonatal mortality of 31.6% (95% CI: 26.9–36.7) was noted, with 65.8% of deaths occurring within 72 hours from admission. The most common medical conditions at admission were: hypothermia (67.2%), respiratory distress syndrome (43.0%), small for gestational age (15.7%), and perinatal asphyxia (14.5%). Under multivariate regression modelling, maternal age ≥35 years (AOR: 4.5; 95% CI: 1.35–15.31), no antenatal care (AOR: 4.7; 95% CI: 1.05–21.21), >4 ANC visits (AOR: 5.3; 95% CI: 1.88–15.21), neonatal resuscitation (AOR: 3.4; 95% CI: 1.66–6.82), outborn status (AOR: 2.3; 95% CI: 1.20–4.50), singleton pregnancy (AOR: 3.7; 95% CI: 1.74–7.89), <28 weeks’ gestation (AOR: 12.0; 95% CI: 2.24–64.27), and male sex (AOR: 2.0; 95% CI: 1.04–3.74), respiratory distress syndrome (AOR: 2.6; 95% CI: 1.22–5.70), apnea (AOR: 6.2; 95.5% CI: 1.09–35.38), hypothermia (AOR: 2.3; 95% CI: 1.09–4.92), and small for gestational age (AOR: 4.7; 95% CI: 2.06–10.74) were significantly associated with mortality. Conclusion and Recommendations In-hospital mortality of preterm neonates was high. We identified various maternal and neonatal risk factors, indicating a need for stakeholders to enhance efforts towards prevention of preterm-associated complications and optimize facility-based continuum of care.
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Affiliation(s)
- Walufu Ivan Egesa
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Richard Justin Odong
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Peters Kalubi
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Enedina Arias Ortiz Yamile
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Daniel Atwine
- Department of Clinical Research, SOAR Research Foundation, Mbarara, Uganda
| | - Munanura Turyasiima
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Gloria Kiconco
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Melvis Bernis Maren
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Martin Nduwimana
- Department of Paediatrics and Child Health, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
| | - Robinson Ssebuufu
- Department of Surgery, Faculty of Clinical Medicine and Dentistry, Kampala International University, Bushenyi, Uganda
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19
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Squarza C, Gardon L, Giannì ML, Frigerio A, Gangi S, Porro M, Mosca F, Picciolini O. Neurodevelopmental Outcome and Adaptive Behavior in Preterm Multiples and Singletons at 1 and 2 Years of Corrected Age. Front Psychol 2020; 11:1653. [PMID: 32733348 PMCID: PMC7360726 DOI: 10.3389/fpsyg.2020.01653] [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: 04/03/2020] [Accepted: 06/17/2020] [Indexed: 11/24/2022] Open
Abstract
Background Recent literature has investigated the role of multiple birth on neurodevelopmental outcomes of premature infants, especially extremely preterm ones. Multiple gestations are often associated to increased neurodevelopmental disability. Actually, research findings are controversial. Objective To compare the neurodevelopmental and behavioral outcomes of multiples and singletons in a cohort of preterm infants ≤28 weeks gestational age at 1 and 2 years of corrected age. Methods The study included 86 infants, born from January 2014 to September 2017 and enrolled in the follow-up program provided at authors’ Institution. Exclusion criteria included: major brain lesions and malformations, severe neuro-sensorial deficits, genetic syndromes, single-twin survivors. Thirty four multiples were compared to 52 singletons, using the Griffiths Mental Development Scales and the Child Behavior Checklist 1½–5. Statistical analysis was based on ANOVA techniques to test group differences. A p < 0.05 was considered statistically significant. Results The neurodevelopmental outcomes of multiples and singletons at 1 and 2 years of corrected age did not significantly differ at a general level (p > 0.05). Multiples showed significantly lower mean scores than singletons at 1 year in Locomotor (87.15 ± 11.94 vs. 92.48 ± 11.59) and Personal-Social (84.88 ± 10.25 vs. 89.63 ± 8.19) subscales. Considering the behavioral outcomes, higher rates of externalizing problems were observed in multiples at 2 years (54.27 ± 9.64 vs. 49.31 ± 10.39). Conclusion The slightly lower neurodevelopmental outcome showed by multiples, especially in the gross-motor and personal-social domains at 1 year, might be related to the specific environmental condition they experience. Multiple birth may affect mother’s sensitivity to infant’s needs and infant’s acquisition of emotional and behavioral regulation. This affects the separation process and the acquisition of the independent walking and other gross-motor skills. Being multiples might also induce an hyperstimulation and this could explain their higher vulnerability to externalizing problems (impulsiveness, hyperactivity, attention deficits). Additionally, males are more affected by the multiple condition than females.
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Affiliation(s)
- Chiara Squarza
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit (NICU), Milan, Italy
| | - Laura Gardon
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit (NICU), Milan, Italy
| | - Maria Lorella Giannì
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit (NICU), Milan, Italy.,Department of Clinical Science and Community Health, University of Milan, Milan, Italy
| | - Andrea Frigerio
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit (NICU), Milan, Italy
| | - Silvana Gangi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit (NICU), Milan, Italy
| | - Matteo Porro
- Pediatric Physical Medicine and Rehabilitation Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Fabio Mosca
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neonatal Intensive Care Unit (NICU), Milan, Italy.,Department of Clinical Science and Community Health, University of Milan, Milan, Italy
| | - Odoardo Picciolini
- Pediatric Physical Medicine and Rehabilitation Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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20
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Abstract
Neonatal brachial plexus palsy (NBPP) is a birth injury that can cause severe functional loss in the affected limb. The purpose of this study was to determine the temporal changes in the national incidence of this condition and whether associated risk factors have changed over time. Children born via vaginal delivery were identified in the Kids' Inpatient Database (KID) from 1997 to 2012, and those with NBPP were identified. The trend in incidence and risk factors were assessed through the study period. The nationwide incidence of NBPP decreased during the study period. Infants with shoulder dystocia, fetal macrosomia, and gestational diabetes had the highest risk of developing NBPP, while multiple birth mates during delivery had a protective effect. Multiple risk factors, including shoulder dystocia, macrosomia, and heavy for dates became less predictive of the development of NBPP over time. Several risk factors predispose children to the development of NBPP, and the effect of these risk factors has been changing. This information can guide obstetric treatment to help prevent NBPP. Level of evidence is diagnostic, level 3.
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21
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Neurodevelopmental outcome of preterm twins at 5 years of age. Pediatr Res 2020; 87:1072-1080. [PMID: 31830757 DOI: 10.1038/s41390-019-0688-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 09/26/2019] [Accepted: 11/11/2019] [Indexed: 11/08/2022]
Abstract
BACKGROUND Twins are considered to be at an increased risk for perinatal mortality and morbidities, but it is unclear whether preterm twins are at an increased risk for poor developmental outcomes when compared to preterm singletons. Our aim was to compare the neurodevelopmental outcome of preterm twins vs singletons at 5 years of age. METHODS Very low birth weight and very low gestational age infants (twins n = 66, singletons n = 157) were recruited as a part of the PIPARI project in the Turku University Hospital, covering a regional population. Cognitive development, neuropsychological performance, and neurodevelopmental impairments (including cerebral palsy, hearing deficit, visual impairment, and intellectual disability) were evaluated at 5 years of age. RESULTS Twins and singletons had otherwise similar perinatal background factors, except for the higher proportion of preterm rupture of membranes in singletons. Twins had cognitive and neuropsychological outcomes that were otherwise comparable with singletons, but they had a slightly lower verbal intelligence quotient (estimate -5.81, 95% CI -11.14 to -0.48, p = 0.03). Being a twin was not a risk for neurodevelopmental impairments. CONCLUSIONS Our study shows that, contrary to a common hypothesis, the overall neurodevelopment of very preterm twins does not significantly differ from that of preterm singletons.
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22
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Isayama T, Kusuda S, Reichman B, Lee SK, Lehtonen L, Norman M, Adams M, Bassler D, Helenius K, Hakansson S, Yang J, Jain A, Shah PS. Neonatal Intensive Care Unit-Level Patent Ductus Arteriosus Treatment Rates and Outcomes in Infants Born Extremely Preterm. J Pediatr 2020; 220:34-39.e5. [PMID: 32145968 DOI: 10.1016/j.jpeds.2020.01.069] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/07/2020] [Accepted: 01/31/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES To assess associations between neonatal intensive care unit (NICU)-level patent ductus arteriosus (PDA) treatment rates (pharmacologic or surgical) and neonatal outcomes. STUDY DESIGN This cohort study included infants born at 24-28 weeks of gestation and birth weight <1500 g in 2007-2015 in NICUs caring for ≥100 eligible infants in 6 countries. The ratio of observed/expected (O/E) PDA treatment rates was derived for each NICU by estimating the expected rate using a logistic regression model adjusted for potential confounders and network. The primary composite outcome was death or severe neurologic injury (grades III-IV intraventricular hemorrhage or periventricular leukomalacia). The associations between the NICU-level O/E PDA treatment ratio and neonatal outcomes were assessed using linear regression analyses including a quadratic effect (a square term) of the O/E PDA treatment ratio. RESULTS From 139 NICUs, 39 096 infants were included. The overall PDA treatment rate was 45% in the cohort (13%-77% by NICU) and the O/E PDA treatment ratio ranged from 0.30 to 2.14. The relationship between the O/E PDA treatment ratio and primary composite outcome was U-shaped, with the nadir at a ratio of 1.13 and a significant quadratic effect (P<.001). U-shaped relationships were also identified with death, severe neurologic injury, and necrotizing enterocolitis. CONCLUSIONS Both low and high PDA treatment rates were associated with death or severe neurologic injury, whereas a moderate approach was associated with optimal outcomes.
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Affiliation(s)
- Tetsuya Isayama
- Division of Neonatology, Center for Maternal-Fetal Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Satoshi Kusuda
- Neonatal Research Network Japan, Maternal and Perinatal Center, Tokyo Women's Medical University, Tokyo, Japan
| | - Brian Reichman
- Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Centre, Tel Hashomer, Israel
| | - Shoo K Lee
- Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Maternal-infant Care Research Centre, Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Liisa Lehtonen
- Department of Pediatrics and Adolescent Medicine, Turku University Hospita, Turku, Finland; Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Mikael Norman
- Department of Neonatal Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Mark Adams
- Swiss Neonatal Network, Department of Neonatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Dirk Bassler
- Swiss Neonatal Network, Department of Neonatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Kjell Helenius
- Department of Pediatrics and Adolescent Medicine, Turku University Hospita, Turku, Finland; Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Stellan Hakansson
- Department of Clinical Science/Pediatrics, Umeå University, Umeå, Sweden
| | - Junmin Yang
- Maternal-infant Care Research Centre, Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Amish Jain
- Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Prakesh S Shah
- Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada; Maternal-infant Care Research Centre, Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.
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Tosello B, Garbi A, Blanc J, Lorthe E, Foix-L'Hélias L, D'Ercole C, Winer N, Subtil D, Goffinet F, Kayem G, Resseguier N, Gire C. The impact of chorionicity on pregnancy outcome and neurodevelopment at 2 years old among twins born preterm: the EPIPAGE-2 cohort study. BJOG 2020; 128:281-291. [PMID: 32048439 DOI: 10.1111/1471-0528.16170] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To compare the short- and mid-term outcomes of preterm twins by chorionicity of pregnancy. DESIGN Prospective nationwide population-based EPIPAGE-2 cohort study. SETTING 546 maternity units in France, between March and December 2011. POPULATION A total of 1700 twin neonates born between 24 and 34 weeks of gestation. METHODS The association of chorionicity with outcomes was analysed using multivariate regression models. MAIN OUTCOME MEASURES First, survival at 2-year corrected age with or without neurosensory impairment, and second, perinatal, short-, and mid-term outcomes (survival at discharge, survival at discharge without severe morbidity) were described and compared by chorionicity. RESULTS In the EPIPAGE 2 cohort, 1700 preterm births were included (850 twin pregnancies). In all, 1220 (71.8%) were from dichorionic (DC) pregnancies and 480 from monochorionic (MC) pregnancies. MC pregnancies had three times more medical terminations than DC pregnancies (1.67 versus 0.51%, P < 0.001), whereas there were three times more stillbirths in MC than in DC pregnancies (10.09 versus 3.78%, P < 0.001). Both twins were alive at birth in 86.6% of DC pregnancies compared with 80.0% among MC pregnancies (P = 0.008). No significant difference according to chorionicity was found regarding neonatal deaths and morbidities. Likewise, for children born earlier than 32 weeks, the 2-year follow-up neurodevelopmental results were not significantly different between DC and MC twins. CONCLUSIONS This study confirms that MC pregnancies have a higher risk of adverse outcomes. However, the outcomes among preterm twins admitted to neonatal intensive care units are similar irrespective of chorionicity. TWEETABLE ABSTRACT Monochorionicity is associated with adverse perinatal outcomes, but outcomes for preterm twins are comparable irrespective of their chorionicity.
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Affiliation(s)
- B Tosello
- Department of Neonatology, North Hospital, Assistance Publique des Hôpitaux de Marseille, Marseille, France.,CNRS, EFS, ADES, Aix-Marseille Univ, Marseille, France
| | - A Garbi
- Department of Neonatology, North Hospital, Assistance Publique des Hôpitaux de Marseille, Marseille, France
| | - J Blanc
- Department of Obstetrics and Gynecology, Nord Hospital, Assistance Publique des Hôpitaux de Marseille, Marseille, France.,EA 3279, CEReSS, Health Service Research and Quality of Life Center, Aix-Marseille University, Marseille, France
| | - E Lorthe
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Research Center for Epidemiology and BioStatistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France.,EPIUnit - Institute of Public Health, University of Porto, Porto, Portugal
| | - L Foix-L'Hélias
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Research Center for Epidemiology and BioStatistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France.,Department of Neonatology, Trousseau Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - C D'Ercole
- Department of Obstetrics and Gynecology, Nord Hospital, Assistance Publique des Hôpitaux de Marseille, Marseille, France
| | - N Winer
- Unité Mixte de Recherche 1280 Physiologie des Adaptations Nutritionnelles, Department of Obstetrics and Gynecology, Centre d'Investigation Clinique Mère Enfant, Institut National de la Recherche Agronomique, University Hospital, Nantes, France
| | - D Subtil
- Department of Obstetrics and Gynecology, Jeanne de Flandre Hospital, Lille, France.,Pôle de Recherche et d'Enseignement Supérieur, University of Lille Nord de France, Lille, France
| | - F Goffinet
- Department of Obstetrics and Gynecology, Trousseau Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - G Kayem
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Research Center for Epidemiology and BioStatistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France.,Department of Obstetrics and Gynecology, Trousseau Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - N Resseguier
- EA 3279, CEReSS, Health Service Research and Quality of Life Center, Aix-Marseille University, Marseille, France
| | - C Gire
- Department of Neonatology, North Hospital, Assistance Publique des Hôpitaux de Marseille, Marseille, France
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Dudenhausen JW, Misselwitz B, Piedvache A, Maier RF, Weber T, Zeitlin J, Schmidt S. Characteristics, management and outcomes of very preterm triplets in 19 European regions. Int J Gynaecol Obstet 2019; 147:397-403. [PMID: 31402446 DOI: 10.1002/ijgo.12939] [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] [Received: 09/21/2018] [Revised: 06/11/2019] [Accepted: 08/09/2019] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To describe obstetrical care and in-hospital outcomes in very preterm triplet pregnancies in a European multiregional cohort. METHODS Data from a prospective population-based study of very preterm births between 22 + 0 and 31 + 6 weeks of gestation in 19 regions from 11 European countries participating in the EPICE project in 2011/2012 were used to describe triplet pregnancies and compare them with twins and singletons. RESULTS Triplets constituted 1.1% of very preterm pregnancies (97/8851) and 3.3% of very preterm live births (258/7900); these percentages varied from 0% to 2.6% and 0% to 6% respectively across the regions. In-hospital mortality after live birth was 12.4% and did not differ significantly from singletons or twins or by birth order. However, 28.9% of mothers with a triplet pregnancy experienced at least one neonatal death. Ninety percent of live-born triplets were delivered by cesarean. Vaginal delivery was associated with an Apgar score of less than 7, but not with in-hospital mortality. CONCLUSIONS The prevalence of very preterm triplets varies across European regions. Most triplets were born by cesarean and those born vaginally had lower Apgar scores. Overall, in-hospital mortality after live birth was similar to singletons and twins.
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Affiliation(s)
| | | | - Aurelie Piedvache
- INSERM U1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Paris, France
| | - Rolf F Maier
- Children's Hospital, Philipps University Marburg, Marburg, Germany
| | - Tom Weber
- Department of Obstetrics, Hvidovre University Hospital, Hvidovre, Denmark
| | - Jennifer Zeitlin
- INSERM U1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Paris, France
| | - Stephan Schmidt
- Department of Obstetrics, University Hospital, Philipps University, Marburg, Germany
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25
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Kim SY, Choi BY, Jung EY, Park H, Yoo HN, Park KH. Risk factors for failure in the newborn hearing screen test in very preterm twins. Pediatr Neonatol 2018; 59:586-594. [PMID: 29428705 DOI: 10.1016/j.pedneo.2018.01.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/26/2017] [Accepted: 01/12/2018] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND We aimed to identify prenatal and postnatal risk factors associated with abnormal newborn hearing screen (NHS) results and subsequently confirmed sensorineural hearing loss (SNHL) in preterm twin neonates. METHODS Electronic medical records of 159 twin neonates who were born alive after ≤32 weeks were retrospectively reviewed for hearing loss in both ears. Histopathologic examination of the placenta was performed and clinical data, including method of conception and factors specific to twins, were retrieved from a computerized perinatal database. The main outcome measure was failure to pass the NHS test. The generalized estimation equations model was used for twins. RESULTS Thirty-two neonates (20.1%) had a "refer" result, and, on the confirmation test, permanent SNHL was identified in 4.4% (7/159) of all neonates. Neonates who had a "refer" result on the NHS test were more likely to be of lower birth weight, more likely to have been conceived with the use of in vitro fertilization (IVF), and more likely to have higher rates of intraventricular hemorrhage (IVH) and bronchopulmonary dysplasia. However, monochorionic placentation, death of the co-twin, or being born first was not associated with a "refer" result on the NHS test. Multivariable logistic regression revealed that conception after IVF and the presence of IVH were the only variables to be statistically significantly associated with "refer" on the NHS test. No parameters studied were found to be significantly different between the SNHL and no SNHL groups, probably because of the relatively small number of cases of SNHL. CONCLUSION In preterm twin newborns, IVF and the presence of IVH were independently associated with an increased risk of abnormal NHS results, whereas the factors specific to twins were not associated with abnormal NHS results.
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Affiliation(s)
- So Young Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Byung Yoon Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Eun Young Jung
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Hyunsoo Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Ha-Na Yoo
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Kyo Hoon Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.
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26
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Chiruvolu A, Daoud Y, Inzer RW. Effect of delayed cord clamping on very preterm twins. Early Hum Dev 2018; 124:22-25. [PMID: 30099274 DOI: 10.1016/j.earlhumdev.2018.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 07/27/2018] [Accepted: 08/07/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND The very preterm infants of twin births may particularly benefit from delayed cord clamping (DCC) as the likelihood of unfavorable outcome is greater compared to singletons. Unfortunately, there is paucity of available information regarding safety and efficacy of DCC in this group. OBJECTIVE To report the clinical consequences of delayed cord clamping (DCC) in very preterm twins, born between 230/7 and 316/7 weeks gestation. STUDY DESIGN In this pre and post intervention retrospective cohort study, we compared 30 very preterm infants born from 15 twin deliveries during historic study period to 32 very preterm infants born from 16 twin deliveries during DCC study period. During historic study period (August 19, 2013 to January 31, 2015), infants included were eligible to receive DCC, but their cords were immediately clamped. DCC study period (February 1, 2015 to January 31, 2017) included infants who had DCC performed for 60 s after birth. RESULTS The Apgar scores and other resuscitation variables were similar between both groups. After adjusting for gestational age and mode of delivery, significantly fewer infants in the DCC cohort needed red blood cell (RBC) transfusions in first week of life compared to the historic cohort (15.6% vs. 43.3%; P = 0.03). Death and other major neonatal outcomes were similar between both groups. CONCLUSION DCC in very preterm twins was safe, feasible and not associated with any adverse neonatal outcomes compared to early cord clamping. DCC was associated with a significant reduction in early RBC transfusions.
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Affiliation(s)
- Arpitha Chiruvolu
- Division of Neonatology, Department of Pediatrics, Baylor University Medical Center, Pediatrix Medical Group, Dallas, TX, USA.
| | - Yahya Daoud
- Department of Quantitative Sciences, Center for Clinical Effectiveness, Office of Chief Quality Officer, Baylor Scott & White Health Care System, Dallas, TX, USA
| | - Robert W Inzer
- Department of Obstetrics and Gynecology, Baylor University Medical Center, Dallas, TX, USA
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Mari G, Bursac Z, Goedecke PJ, Dhanireddy R. Factors Associated With Improvements in Mortality and Morbidity Rates of Very-Low-Birth-Weight Infants: A Cohort Study. Glob Pediatr Health 2018; 5:2333794X18765366. [PMID: 29662925 PMCID: PMC5894905 DOI: 10.1177/2333794x18765366] [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: 11/14/2017] [Accepted: 02/12/2018] [Indexed: 11/17/2022] Open
Abstract
Objective. The objective of this study was to determine factors contributing to improvements in infant mortality rates (IMR) and composite morbidity-mortality in very-low-birth-weight (VLBW) infants after initiating a new perinatal program in 2009 at Regional One Health (ROH). VLBW infants account for 67% of infant deaths. Design. This is a pre-/postintervention cohort study of prospectively gathered data. Population. VLBW infants delivered at ROH during the 2004 to 2015 study period. Setting. ROH is a Regional Perinatal Center affiliated with the University of Tennessee Health Science Center. Methods. We studied 2364 consecutive VLBW infants. Multivariate models were applied to determine factors contributing significantly to the reduction in the outcome measures as well as trends over time. Main Outcome Measures. Primary outcomes were IMR and composite morbidity-mortality rates. Standardized, risk-adjusted mortality and composite morbidity ratios were also reported as defined by the Vermont Oxford Network. Results. Mortality declined from 15.5% in Pre-Implementation to 13.1% in Post-Implementation (P = .093), corresponding to an 18% reduction in odds. The combined factors of composite morbidity-mortality rate decreased from 55.7% in Pre-Implementation to 43.9% in Post-Implementation (P < .0001), representing a 38% reduction in odds. Standardized, risk-adjusted mortality and composite morbidity ratios improved during the study period from 20% above to 20% below the expected rate. Increases in the administration of antenatal steroids, surfactant administration, cesarean delivery, and perhaps other programmatic changes that were observational and unaccounted in the model were associated with improvements in outcome measures. Conclusions. Decreased mortality and composite morbidity-mortality in VLBW infants delivered at ROH were found following the initiation of a new perinatal program.
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Affiliation(s)
- Giancarlo Mari
- University of Tennessee Health Science Center, Memphis, TN, USA
| | - Zoran Bursac
- University of Tennessee Health Science Center, Memphis, TN, USA
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Neurodevelopmental Outcomes of Twins Compared With Singleton Children: A Systematic Review. Twin Res Hum Genet 2018; 21:136-145. [PMID: 29415789 DOI: 10.1017/thg.2018.3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
More than 200 million children aged <5 years fail to reach their full cognitive potential, and children born as twins are particularly at risk. In this article, we review studies that examined differences in the neurodevelopmental outcomes of twins compared to singletons. We searched the Medline database for articles on twins, singletons, neuro, and cognitive development. We also inspected bibliographies of relevant publications to identify related articles from 2011 to 2017. Our search criteria yielded 162 studies, 8 of which met the inclusion criteria. Of the eight studies examined, four were prospective follow-up studies, three were cross-sectional studies, and one was a randomized controlled trial. Five of these studies were carried out in developed countries, and they found no statistically significant difference in neurodevelopmental outcomes among twins and singletons. However, two of the three studies carried out in developing countries found a difference with singletons having significantly higher academic ratings than twins. Studies in which neurodevelopmental outcomes were measured early in life (1-5 years) showed no significant twin-singleton differences, while those in which it was measured later in life showed mixed twin-singleton differences. Overall, these studies may have been underpowered and may not have been optimally designed and implemented. There is need for studies with adequate sample sizes, good design, and optimal measurement of all relevant covariates in order to resolve the conflicting reports in the literature.
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29
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Poryo M, Boeckh JC, Gortner L, Zemlin M, Duppré P, Ebrahimi-Fakhari D, Wagenpfeil S, Heckmann M, Mildenberger E, Hilgendorff A, Flemmer AW, Frey G, Meyer S. Ante-, peri- and postnatal factors associated with intraventricular hemorrhage in very premature infants. Early Hum Dev 2018; 116:1-8. [PMID: 29091782 DOI: 10.1016/j.earlhumdev.2017.08.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 08/21/2017] [Accepted: 08/25/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND Intraventricular hemorrhage (IVH) is one of the most serious complications in preterm infants and is associated with neurological sequelae and mortality. Over the past few decades, the rate of IVH has decreased due to improved neonatal intensive care. However, up to 15-25% of very and extremely premature infants (<32 and <28weeks of pregnancy (WOP) respectively) still suffer from IVH. STUDY PURPOSE The aim of this study was to perform an updated, multicenter analysis to identify ante-, peri, and postnatal factors other than gestational age/birth weight associated with IVH of any grade in a large cohort of very and extremely premature infants. METHODS We performed a retrospective analysis in a prospectively conducted multicenter cohort study between 01/01/1998-31/12/2012 at 5 level 3 perinatal centers. All relevant ante-, peri- and neonatal data were collected and univariate as well as multivariate logistic regression analysis was performed. RESULTS 765 inborn infants with a gestational age<32 WOP were enrolled into this study (369 (48.2%) female; 396 (51.8%) male). Birth weight ranged from 315g to 2200g (mean 1149.7g, SD 371.9g); 279 (36.5%) were born ≤27+6 WOP and 486 (63.5%)≥28+0 WOP. IVH was seen in 177 (23.1%) patients. Multivariate analysis revealed that in addition to higher gestational age (OR 0.7, CI [0.6-0.8]), antenatal steroid treatment (OR 0.3, CI [0.2-0.6]) and caesarian section without uterine contraction (OR 0.6, CI [0.4-0.9]) were associated with a lower rate of IVH while RDS (OR 5.6, CI [1.3-24.2]), pneumothorax (OR 2.8, CI [1.4-5.5]) and use of catecholamines (OR 2.7, CI [1.7-4.5]) were associated with an increased risk of IVH. After exclusion of gestational age and birth weight from multivariate analysis, early onset sepsis (OR 1.6, CI [1.01-2.7]) and patent ductus arteriosus (OR 1.9, CI [1.1-3.1]) were associated with a higher rate of IVH. In addition, univariate analysis revealed that Apgar scores at 5min (p<0.001), BDP/ROP/NEC (p<0.001), mechanical ventilation (p<0.001) and inhalative nitric oxide (p<0.001) were significantly associated with IVH. CONCLUSIONS Our comprehensive analysis demonstrated that the occurrence of IVH in very premature infants is significantly associated with ante-, peri- and postnatal factors being either related to the degree of immaturity or indicating a critical clinical course after birth. The analysis reiterates the necessity for a very close cooperation between obstetricians and neonatologists to reduce the incidence of IVH in this susceptible cohort.
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Affiliation(s)
- Martin Poryo
- Department of Pediatric Cardiology, Saarland University Medical Center, Homburg/Saar, Germany.
| | - Judith Caroline Boeckh
- Department of Internal Medicine, Katharinenhospital Klinikum Stuttgart, Stuttgart, Germany
| | - Ludwig Gortner
- Department of Pediatrics and Neonatology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Michael Zemlin
- Department of Pediatrics and Neonatology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Perrine Duppré
- University of Saarland, Medical School, Homburg/Saar, Germany
| | | | - Stefan Wagenpfeil
- Institute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University, Campus Homburg/Saar, Germany
| | - Matthias Heckmann
- Department of Neonatology and Pediatric Intensive Care, University Medicine Greifswald, Germany
| | - Eva Mildenberger
- Department of Neonatology, University Medical Center, Johannes Gutenberg University Mainz, Germany
| | - Anne Hilgendorff
- Department of Neonatology, University Medical Center, Ludwig-Maximilian-University Munich, Germany
| | - Andreas W Flemmer
- Department of Neonatology, University Medical Center, Ludwig-Maximilian-University Munich, Germany
| | - Georg Frey
- Department of Pediatric Cardiology and Neonatology, Darmstaedter Kinderkliniken Prinzessin Margaret, Darmstadt, Germany
| | - Sascha Meyer
- Department of Pediatrics and Neonatology, Saarland University Medical Center, Homburg/Saar, Germany; Department of Pediatric Neurology, Saarland University Medical Center, Homburg/Saar, Germany
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30
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Porta R, Capdevila E, Botet F, Verd S, Ginovart G, Moliner E, Nicolàs M, Rios J. Morbidity and mortality of very low birth weight multiples compared with singletons. J Matern Fetal Neonatal Med 2017; 32:389-397. [PMID: 28936899 DOI: 10.1080/14767058.2017.1379073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Previous studies comparing the neonatal outcome of very low birth weight (VLBW) multiples and singletons have suggested a worse outcome for multiples at gestational ages on the limits of viability. OBJECTIVES The objective of this study is to determine the neonatal mortality and morbidity of VLBW multiples compared to singletons. METHODS This is a retrospective study including all infants registered in the Spanish network for infants under 1500 g (SEN1500), over a 12-year period (from 2002 to 2013). Mortality and major morbidities were compared between singletons and multiples. RESULTS About 32,770 infants were included: 21,123 singletons (64.5%) and 11,647 multiples (35.5%), with a mean gestational age of 29.5 weeks (22-38), and mean birth weight of 1115 g (340-1500). When adjusted by other perinatal factors, multiple pregnancy has a significantly higher risk of mortality than singleton pregnancy (odds ratio (OR) 1.15; IC 95% 1.05-1.26, p = .002), but not a higher risk of major morbidity or composite adverse outcome. In the subgroup of infants born before 26 weeks, multiples showed a higher risk of mortality (63.9% versus 51%, OR 1.7; 95% CI 1.47-1.96) and a higher risk of composite adverse outcome (88.9% versus 81.5%, OR 1.82, 95% CI 1.28-2.24). CONCLUSIONS In preterm infants born with less than 1500 g, multiple pregnancy is a prognostic factor that can slightly increase mortality. Extremely preterm infants born before 26 weeks have a greater risk of mortality and major morbidity if they come from a multiple pregnancy.
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Affiliation(s)
- Roser Porta
- a Department of Neonatology-Pediatrics , Hospital Universitari Dexeus , Barcelona , Spain
| | - Eva Capdevila
- a Department of Neonatology-Pediatrics , Hospital Universitari Dexeus , Barcelona , Spain
| | - Francesc Botet
- b Department of Neonatology , Hospital Clinic de Barcelona , Barcelona , Spain
| | - Sergi Verd
- c Health Sciences Research Institute (IUNICS) , Palma de Mallorca , Spain
| | - Gemma Ginovart
- d Hospital de la Santa Creu i Sant Pau , Barcelona , Spain
| | | | - Marta Nicolàs
- e Department of Neonatology-Pediatrics , Hospital de Terrassa , Terrassa , Spain
| | - Jose Rios
- f IDIBAPS - Hospital Clinic Barcelona , Barcelona , Spain
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31
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Gagliardi L, Lucchini R, Bellù R, Zanini R. Antenatal Corticosteroid Prophylaxis in Singleton and Multiple Pregnancies. Paediatr Perinat Epidemiol 2017; 31:394-401. [PMID: 28767132 DOI: 10.1111/ppe.12385] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND The effects of antenatal corticosteroids (ANS) in multiple pregnancies are disputed. In this article, we examined whether estimated effects differ in singletons and multiples and in small for gestational age (SGA) preterm infants. METHODS We studied 17 073 singletons (81% treated with ANS) and 8274 multiples (86% treated) born at 24-33 weeks from the Italian Neonatal Network (2005-2013). We used Poisson regression models with robust variance to estimate adjusted risk ratios (RR) of in-hospital death, severe intraventricular haemorrhage (IVH), periventricular leukomalacia (PVL), and the composite outcome of severe IVH and death. RESULTS Mortality was lower among ANS-treated vs. ANS-untreated infants, both in singletons (RR 0.63, 95% confidence interval (CI) 0.58, 0.68) and in multiples (RR 0.85, 95% CI 0.73, 0.98). IVH and the composite outcome of IVH and death, but not PVL, also occurred less frequently among ANS-treated infants. For these outcomes, the effect of ANS was stronger in singletons than in multiples (+35%, +32%, and +22% for death, IVH, and the composite outcome, respectively). Also among SGA infants, singletons, and multiples, ANS-treated infants had lower risk of death, IVH and of composite outcome than untreated ones. CONCLUSIONS In this large cohort of preterm infants, both multiples and singletons treated with ANS had a lower risk of mortality, of severe IVH, and of composite outcome of IVH and death, both in the overall sample and in SGA infants. Although ANS effect was weaker in multiples, our results support current recommendations to administer ANS prophylaxis in multiple pregnancies at risk of preterm delivery.
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Affiliation(s)
- Luigi Gagliardi
- Pediatrics and Neonatology Division, Woman and Child Health Department, Ospedale Versilia, Viareggio, Italy
| | - Renato Lucchini
- Department of Pediatrics and Child Neuropsychiatry, Sapienza University, Roma, Italy
| | - Roberto Bellù
- Neonatal Intensive Care Unit, Alessandro Manzoni Hospital, Lecco, Italy
| | - Rinaldo Zanini
- Woman and Child Health Department, Azienda Ospedaliera della Provincia di Lecco, Lecco, Italy
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Zeitlin J, Bonamy AKE, Piedvache A, Cuttini M, Barros H, Van Reempts P, Mazela J, Jarreau PH, Gortner L, Draper ES, Maier RF. Variation in term birthweight across European countries affects the prevalence of small for gestational age among very preterm infants. Acta Paediatr 2017; 106:1447-1455. [PMID: 28470839 DOI: 10.1111/apa.13899] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 02/18/2017] [Accepted: 04/03/2017] [Indexed: 12/14/2022]
Abstract
AIM This study assessed the prevalence of small for gestational age (SGA) among very preterm (VPT) infants using national and European intrauterine references. METHODS We generated country-specific and common European intrauterine growth references for 11 European countries, according to Gardosi's approach and Hadlock's foetal growth model, using national data on birthweights by sex. These references were applied to the Effective Perinatal Intensive Care in Europe (EPICE) cohort, which comprised 7766 live VPT births without severe congenital anomalies under 32 weeks of gestation in 2011-2012, to estimate the prevalence of infants with SGA birthweights, namely those below the 10th percentile. RESULTS The SGA prevalence was 31.8% with country-specific references and 34.0% with common European references. The European references yielded a 10-point difference in the SGA prevalence between countries with lower term birthweights (39.9%) - Portugal, Italy and France - and higher term birthweights, namely Denmark, the Netherlands, Sweden (28.9%; p < 0.001). This was not observed with country-specific references, where the respective figures were 32.4% and 33.9% (p = 0.34), respectively. CONCLUSION One-third of VPT infants were SGA according to intrauterine references. Common European references showed significant differences in SGA prevalence between countries with high and low-term birthweights.
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Affiliation(s)
- Jennifer Zeitlin
- INSERM; Obstetrical, Perinatal and Pediatric Epidemiology Research Team; Centre for Epidemiology and Biostatistics (U1153); Paris-Descartes University; Paris France
| | - Anna-Karin Edstedt Bonamy
- Clinical Epidemiology Unit; Department of Medicine Solna and Department of Women's and Children's Health; Karolinska Institutet; Stockholm Sweden
| | - Aurelie Piedvache
- INSERM; Obstetrical, Perinatal and Pediatric Epidemiology Research Team; Centre for Epidemiology and Biostatistics (U1153); Paris-Descartes University; Paris France
| | - Marina Cuttini
- Clinical Care and Management Innovation Research Area; Bambino Gesù Children's Hospital; IRCCS, Rome Italy
| | - Henrique Barros
- EPIUnit-Institute of Public Health; University of Porto; Porto Portugal
- Department of Clinical Epidemiology, Predictive Medicine and Public Health; University of Porto Medical School; Porto Portugal
| | - Patrick Van Reempts
- Department of Neonatology; Antwerp University Hospital; University of Antwerp; Edegem and Study Centre for Perinatal Epidemiology Flanders; Brussel Belgium
| | - Jan Mazela
- Poznan University of Medical Sciences; Poznan Poland
| | - Pierre-Henri Jarreau
- Université Paris V René Descartes and Assistance Publique Hôpitaux de Paris; Hôpitaux Universitaire Paris Centre Site Cochin; Service de Médecine et Réanimation néonatales de Port-Royal; Paris France
| | - Ludwig Gortner
- Children's Hospital; University Hospital; University of Saarland; Homburg/Saar Germany
| | | | - Rolf F. Maier
- Children's Hospital; University Hospital; Philipps University; Marburg Germany
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Torchin H, Ancel PY. [Epidemiology and risk factors of preterm birth]. ACTA ACUST UNITED AC 2016; 45:1213-1230. [PMID: 27789055 DOI: 10.1016/j.jgyn.2016.09.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 09/14/2016] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To synthesize the available evidence regarding the incidence and several risk factors of preterm birth. To describe neonatal outcomes according to gestational age and to the context of delivery. MATERIALS AND METHODS Consultation of the Medline database. RESULTS In 2010, 11% of live births (15 million babies) occurred before 37 completed weeks of gestation worldwide. About 85% of these births were moderate to late preterm babies (32-36 weeks), 10% were very preterm babies (28-31 weeks) and 5% were extremely preterm babies (<28 weeks). In France, premature birth concerns 60,000 neonates every year, 12,000 of whom are born before 32 completed weeks of gestation. Half of them are delivered after spontaneous onset of labor or preterm premature rupture of the membranes, and the other half are provider-initiated preterm births. Several maternal factors are associated with preterm birth, including sociodemographic, obstetrical, psychological, and genetic factors; paternal and environmental factors are also involved. Gestational age is highly associated with neonatal mortality and with short- and long-term morbidities. Pregnancy complications and the context of delivery also have an impact on neonatal outcomes. CONCLUSION Preterm birth is one of the leading cause of the under-five mortality and of neurodevelopmental impairment worldwide; it remains a major public health issue.
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Affiliation(s)
- H Torchin
- Inserm U1153, DHU risques et grossesse, équipe de recherche en épidémiologie obstétricale, périnatale et pédiatrique, centre de recherche épidémiologie et statistique Sorbonne Paris Cité, bâtiment Port-Royal, 53, avenue de l'Observatoire, 75014 Paris, France; Université Paris Descartes, Paris, France.
| | - P-Y Ancel
- Inserm U1153, DHU risques et grossesse, équipe de recherche en épidémiologie obstétricale, périnatale et pédiatrique, centre de recherche épidémiologie et statistique Sorbonne Paris Cité, bâtiment Port-Royal, 53, avenue de l'Observatoire, 75014 Paris, France; URC - CIC P1419, groupe hospitalier Cochin Hôtel-Dieu, Assistance publique-Hôpitaux de Paris, 75014 Paris, France; Université Paris Descartes, Paris, France
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Abstract
OBJECTIVES A limited body of research is available on the relationships between multiplicity of birth and neuropsychological functioning in preterm children who were conceived in the age of assisted reproductive technology and served by the modern neonatal intensive care unit. Our chief objective was to evaluate whether, after adjustment for sociodemographic factors and perinatal complications, twin birth accounted for a unique portion of developmental outcome variance in children born at-risk in the surfactant era. METHODS We compared the neuropsychological functioning of 77 twins and 144 singletons born preterm (<34 gestational weeks) and served by William Beaumont Hospital, Royal Oak, MI. Children were evaluated at preschool age, using standardized tests of memory, language, perceptual, and motor abilities. RESULTS Multiple regression analyses, adjusting for sociodemographic and perinatal variables, revealed no differences on memory or motor indices between preterm twins and their singleton counterparts. In contrast, performance of language and visual processing tasks was significantly lower in twins despite reduced perinatal risk in comparison to singletons. Effect sizes ranged from .33 to .38 standard deviations for global language and visual processing ability indices, respectively. No significant group by sex interactions were observed, and comparison of first-, or second-born twins with singletons yielded medium effect sizes (Cohen's d=.56 and .40, respectively). CONCLUSIONS The modest twin disadvantage on language and visual processing tasks at preschool-age could not be readily attributable to socioeconomic or perinatal variables. The possibility of biological or social twinning-related phenomena as mechanisms underlying the observed performance gaps are discussed. (JINS, 2016, 22, 865-877).
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Delnord M, Hindori-Mohangoo AD, Smith LK, Szamotulska K, Richards JL, Deb-Rinker P, Rouleau J, Velebil P, Zile I, Sakkeus L, Gissler M, Morisaki N, Dolan SM, Kramer MR, Kramer MS, Zeitlin J. Variations in very preterm birth rates in 30 high-income countries: are valid international comparisons possible using routine data? BJOG 2016; 124:785-794. [PMID: 27613083 DOI: 10.1111/1471-0528.14273] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Concerns about differences in registration practices across countries have limited the use of routine data for international very preterm birth (VPT) rate comparisons. DESIGN Population-based study. SETTING Twenty-seven European countries, the United States, Canada and Japan in 2010. POPULATION A total of 9 376 252 singleton births. METHOD We requested aggregated gestational age data on live births, stillbirths and terminations of pregnancy (TOP) before 32 weeks of gestation, and information on registration practices for these births. We compared VPT rates and assessed the impact of births at 22-23 weeks of gestation, and different criteria for inclusion of stillbirths and TOP on country rates and rankings. MAIN OUTCOME MEASURES Singleton very preterm birth rate, defined as singleton stillbirths and live births before 32 completed weeks of gestation per 1000 total births, excluding TOP if identifiable in the data source. RESULTS Rates varied from 5.7 to 15.7 per 1000 total births and 4.0 to 11.9 per 1000 live births. Country registration practices were related to percentage of births at 22-23 weeks of gestation (between 1% and 23% of very preterm births) and stillbirths (between 6% and 40% of very preterm births). After excluding births at 22-23 weeks, rate variations remained high and with a few exceptions, country rankings were unchanged. CONCLUSIONS International comparisons of very preterm birth rates using routine data should exclude births at 22-23 weeks of gestation and terminations of pregnancy. The persistent large rate variations after these exclusions warrant continued surveillance of VPT rates at 24 weeks and over in high-income countries. TWEETABLE ABSTRACT International comparisons of VPT rates should exclude births at 22-23 weeks of gestation and terminations of pregnancy.
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Affiliation(s)
- M Delnord
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité, DHU Risks in Pregnancy, Paris Descartes University, Paris, France
| | - A D Hindori-Mohangoo
- Department Child Health, TNO, The Netherlands Organisation for Applied Scientific Research, Leiden, The Netherlands.,Department Public Health, Faculty of Medical Sciences, Anton de Kom University of Suriname, Paramaribo, Suriname
| | - L K Smith
- The Infant Mortality and Morbidity Studies Group (TIMMS), Department of Health Sciences, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, UK
| | - K Szamotulska
- Department of Epidemiology and Biostatistics, National Research Institute of Mother and Child, Warsaw, Poland
| | - J L Richards
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - P Deb-Rinker
- Surveillance and Epidemiology Division, Centre for Chronic Disease Prevention, Public Health Agency of Canada, Ottawa, ON, Canada
| | - J Rouleau
- Surveillance and Epidemiology Division, Centre for Chronic Disease Prevention, Public Health Agency of Canada, Ottawa, ON, Canada
| | - P Velebil
- Institute for the Care of Mother and Child, Prague, Czech Republic
| | - I Zile
- Centre for Disease Prevention and Control of Latvia, Riga, Latvia
| | - L Sakkeus
- Estonian Institute for Population Studies, Tallinn University, Tallinn, Estonia
| | - M Gissler
- THL National Institute for Health and Welfare, Helsinki, Finland.,Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Division of Family Medicine, Stockholm, Sweden
| | - N Morisaki
- Department of Lifecourse Epidemiology, Department of Social Medicine, National Centre for Child Health and Development, Setagayaku, Tokyo, Japan
| | - S M Dolan
- Department of Obstetrics & Gynecology and Women's Health, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - M R Kramer
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - M S Kramer
- Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Montreal, QC, Canada
| | - J Zeitlin
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité, DHU Risks in Pregnancy, Paris Descartes University, Paris, France
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Yeo KT, Lee QY, Quek WS, Wang YA, Bolisetty S, Lui K. Trends in Morbidity and Mortality of Extremely Preterm Multiple Gestation Newborns. Pediatrics 2015; 136:263-71. [PMID: 26169427 DOI: 10.1542/peds.2014-4075] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/26/2015] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES To examine the risk of mortality and major morbidities in extremely preterm multiple gestation infants compared with singletons over time. METHODS This is a retrospective study of 15,402 infants born ≤27 weeks' gestation, admitted to NICUs in the Australian and New Zealand Neonatal Network from 1995 to 2009. Mortality and major morbidities were compared between singletons and multiples across three 5-year epochs. RESULTS Extreme preterm multiples were more likely to have lower birth weight; higher maternal age; and higher rates of assisted conception, antenatal steroid use, and cesarean delivery compared with singletons. The mortality rate was significantly higher in multiples compared with singletons even as there was a trend of decreasing gestational-age stratified mortality in multiples over the time period investigated. The rates of major morbidities or composite adverse outcomes were not different between multiples and singletons across all epochs. The adjusted odds ratio (AOR) for mortality in multiples was significantly higher in multiples compared with singletons (AOR 1.20, 95% confidence interval [CI] 1.08-1.34). There were no differences in the adjusted odds for poor outcomes in multiples compared with singletons in the most recent epoch: mortality (AOR 1.00, 95% CI 0.84-1.19), major morbidity (0.95, 95% CI 0.81-1.10), and composite adverse outcome (0.96, 95% CI 0.83-1.11). CONCLUSIONS Over the 15-year period, the odds for mortality in extremely preterm NICU infants of multiple gestation was significantly higher compared with singletons. The adjusted odds of poor outcomes in multiples were not significantly different from that of singletons in the most recent epoch.
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Affiliation(s)
- Kee Thai Yeo
- Department of Newborn Care, Royal Hospital for Women, Randwick, Australia; Department of Neonatology, KK Women's and Children's Hospital, Singapore
| | - Qin Ying Lee
- School of Women's and Child's Health, University of New South Wales, Sydney, Australia; and
| | - Wei Shern Quek
- Department of Newborn Care, Royal Hospital for Women, Randwick, Australia;Department of Neonatology, KK Women's and Children's Hospital, Singapore;School of Women's and Child's Health, University of New South Wales, Sydney, Australia; andFaculty of Health, University of Technology, Sydney, Australia
| | | | - Srinivas Bolisetty
- Department of Newborn Care, Royal Hospital for Women, Randwick, Australia; School of Women's and Child's Health, University of New South Wales, Sydney, Australia; and
| | - Kei Lui
- Department of Newborn Care, Royal Hospital for Women, Randwick, Australia; School of Women's and Child's Health, University of New South Wales, Sydney, Australia; and
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El Ayoubi M, Jarreau PH, Van Reempts P, Cuttini M, Kaminski M, Zeitlin J. Does the antenatal detection of fetal growth restriction (FGR) have a prognostic value for mortality and short-term morbidity for very preterm infants? Results from the MOSAIC cohort. J Matern Fetal Neonatal Med 2015; 29:596-601. [DOI: 10.3109/14767058.2015.1012062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Mayass El Ayoubi
- INSERM, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center for Epidemiology and Biostatistics (U1153), Paris-Descartes University, Paris, France,
- Service de Médecine et Réanimation néonatales de Port-Royal, Hôpitaux Universitaires Paris Centre Site Cochin, Université Paris V René Descartes and Assistance Publique Hôpitaux de Paris, Paris, France,
| | - Pierre-Henri Jarreau
- Service de Médecine et Réanimation néonatales de Port-Royal, Hôpitaux Universitaires Paris Centre Site Cochin, Université Paris V René Descartes and Assistance Publique Hôpitaux de Paris, Paris, France,
| | - Patrick Van Reempts
- Department of Neonatology, Antwerp University Hospital, University of Antwerp and Study Centre for Perinatal Epidemiology Flanders, Belgium, and
| | - Marina Cuttini
- Research Unit of Perinatal Epidemiology, Bambino Gesù Children’s Hospital, Viale Ferdinando Baldelli 41, Roma, Italy
| | - Monique Kaminski
- INSERM, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center for Epidemiology and Biostatistics (U1153), Paris-Descartes University, Paris, France,
| | - Jennifer Zeitlin
- INSERM, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center for Epidemiology and Biostatistics (U1153), Paris-Descartes University, Paris, France,
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Gnanendran L, Bajuk B, Oei J, Lui K, Abdel-Latif ME. Neurodevelopmental outcomes of preterm singletons, twins and higher-order gestations: a population-based cohort study. Arch Dis Child Fetal Neonatal Ed 2015; 100:F106-14. [PMID: 25359876 DOI: 10.1136/archdischild-2013-305677] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To study the neurodevelopmental outcomes of multiple (twins, triplets, quads) compared with singleton extremely preterm infants <29 weeks gestation. DESIGN Population-based retrospective cohort study. SETTING A network of 10 neonatal intensive care units in a geographically defined area of New South Wales and the Australian Capital territory. PATIENTS 1473 infants <29 weeks gestation born between 1 January 1998 and 31 December 2004. INTERVENTION At 2-3 years of corrected age, a neurodevelopmental assessment was conducted using either the Griffiths Mental Developmental Scales or the Bayley Scales of Infant Development II. MAIN OUTCOME MEASURE Moderate-severe functional disability was defined as developmental delay (Griffiths Mental Developmental Scales General Quotient or Bayley Scales of Infant Development-II Mental Development Index >2 SDs below the mean), moderate cerebral palsy (unable to walk without aids), sensorineural or conductive deafness (requiring amplification) or bilateral blindness (visual acuity <6/60 in the better eye). RESULTS Of the 1081 singletons and 392 multiples followed-up, singletons demonstrated higher rates of systemic infections, steroid treatment for chronic lung disease and birth weight <10th percentile. Moderate-severe functional disability did not differ significantly between singletons and multiples (15.8% vs 17.6%, OR 1.14; 95% CI 0.84 to 1.54; p=0.464). Further subgroup analysis of twins, higher-order gestations, 1st-born multiples, 2nd or higher-born multiples, same and unlike gender multiples, did not demonstrate statistically higher rates of functional disability compared with singletons. CONCLUSIONS Premature infants from multiple gestation pregnancies appear to have comparable neurodevelopmental outcomes to singletons.
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Affiliation(s)
- Lokiny Gnanendran
- Department of Medicine, Canberra Hospital, Garran, Australian Capital Territory, Australia
| | - Barbara Bajuk
- Neonatal Intensive Care Units' Data Collection, NSW Pregnancy and Newborn Services Network, New South Wales, Australia
| | - Julee Oei
- Department of Newborn Care, Royal Hospital for Women, New South Wales, Australia School of Women's and Children's Health, University of New South Wales, New South Wales, Australia
| | - Kei Lui
- Department of Newborn Care, Royal Hospital for Women, New South Wales, Australia School of Women's and Children's Health, University of New South Wales, New South Wales, Australia
| | - Mohamed E Abdel-Latif
- Department of Neonatology, Centenary Hospital for Women and Children, Garran, Australian Capital Territory, Australia School of Clinical Medicine, Australian National University, Australian Capital Territory, Australia
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Premru-Srsen T, Verdenik I, Steblovnik L, Ban-Frangez H. Early prediction of spontaneous twin very preterm birth: a population based study 2002-2012. J Matern Fetal Neonatal Med 2014; 28:1784-9. [PMID: 25245228 DOI: 10.3109/14767058.2014.968774] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of this study was to establish early pregnancy risk indicators for spontaneous twin very preterm birth. METHODS We conducted a retrospective observational population-based study. Twenty-one potential early pregnancy risk factors were analyzed using multivariable logistic regression to determine which of them was independently associated with spontaneous twin very preterm birth. RESULTS Of 1815 spontaneous twin births 15.3% (277) occurred before 32 weeks. Previous preterm delivery (aOR 3.73; 95% CI, 2.52-5.52), nulliparity (aOR 2.94; 95% CI, 2.09-4.14), body mass index <18.5 (aOR 1.86; 95% CI, 1.12-3.10), body mass index ≥30 (aOR 1.87; 95% CI, 1.21-2.89), hysteroscopic metroplasty (aOR 1.63; 1.07-2.49), conization (aOR 2.05; 95% CI, 1.07-3.94) and monochorionicity (aOR 1.83; 95% CI, 1.28-2.63) were significantly associated with twin very preterm birth. CONCLUSIONS Pending verification in other populations, twin pregnancies at significant risk for spontaneous very preterm birth can be identified in early pregnancy using several risk indicators.
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Rafael TJ, Berghella V, Alfirevic Z. Cervical stitch (cerclage) for preventing preterm birth in multiple pregnancy. Cochrane Database Syst Rev 2014; 2014:CD009166. [PMID: 25208049 PMCID: PMC10629495 DOI: 10.1002/14651858.cd009166.pub2] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Cervical cerclage is a surgical intervention involving placing a stitch around the uterine cervix. The suture material aims to prevent cervical shortening and opening, thereby reducing the risk of preterm birth. The effectiveness and safety of this procedure in multiple gestations remains controversial. OBJECTIVES To assess whether the use of a cervical cerclage in multiple gestations, either at high risk of pregnancy loss based on just the multiple gestation (history-indicated cerclage), the ultrasound findings of 'short cervix' (ultrasound-indicated cerclage), or the physical exam changes in the cervix (physical exam-indicated cerclage), improves obstetrical and perinatal outcomes. The primary outcomes assessed were perinatal deaths, serious neonatal morbidity, and perinatal deaths and serious neonatal morbidity. SEARCH METHODS We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 June 2014) and reference lists of retrieved studies. SELECTION CRITERIA All randomised controlled trials (RCTs) of cervical cerclage in multiple pregnancies. Quasi-RCTs and RCTs using a cluster-randomised design were eligible for inclusion (but none were identified). Studies using a cross-over design and those presented only as abstracts were not eligible for inclusion.We included studies comparing cervical cerclage with no cervical cerclage in multiple pregnancies.Studies comparing cervical stitch versus any other preventative therapy (e.g. progesterone) in multiple pregnancies, and studies involving comparisons between different cerclage protocols (history-indicated versus ultrasound-indicated versus physical exam-indicated cerclage) were also eligible for inclusion but none were identified. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias. Two review authors extracted data. Data were checked for accuracy. MAIN RESULTS We included five trials, which in total randomised 1577 women, encompassing both singleton and multiple gestations. After excluding singletons, the final analysis included 128 women, of which 122 women had twin gestations, and six women had triplet gestations. Two trials (n = 73 women) assessed history-indicated cerclage, while three trials (n = 55 women) assessed ultrasound-indicated cerclage. The five trials were judged to be of average to above average quality, with three of the trials at unclear risk regarding selection and detection biases.Concerning the primary outcomes, when outcomes for cerclage were pooled together for all indications and compared with no cerclage, there was no statistically significant differences in perinatal deaths (19.2% versus 9.5%; risk ratio (RR) 1.74, 95% confidence intervals (CI) 0.92 to 3.28, five trials, n = 262), serious neonatal morbidity (15.8% versus 13.6%; average RR 0.96, 95% CI 0.13 to 7.10, three trials, n = 116), or composite perinatal death and neonatal morbidity (40.4% versus 20.3%; average RR 1.54, 95% CI 0.58 to 4.11, three trials, n = 116).Among the secondary outcomes, there were no significant differences between the cerclage and the no cerclage groups. To name a few, there were no significant differences among the following: preterm birth less than 34 weeks (average RR 1.16, 95% CI 0.44 to 3.06, four trials, n = 83), preterm birth less than 35 weeks (average RR 1.11, 95% CI 0.58 to 2.14, four trials, n = 83), low birthweight less than 2500 g (average RR 1.10, 95% CI 0.82 to 1.48, four trials, n = 172), very low birthweight less than 1500 g (average RR 1.42, 95% CI 0.52 to 3.85, four trials, n = 172), and respiratory distress syndrome (average RR 1.70, 95% CI 0.15 to 18.77, three trials, n = 116). There were also no significant differences between the cerclage and no cerclage groups when examining caesarean section (elective and emergency) (RR 1.24, 95% CI 0.65 to 2.35, three trials, n = 77) and maternal side-effects (RR 3.92, 95% CI 0.17 to 88.67, one trial, n = 28).Examining the differences between prespecified subgroups, ultrasound-indicated cerclage was associated with an increased risk of low birthweight (average RR 1.39, 95% CI 1.06 to 1.83, Tau² = 0.01, I² = 15%, three trials, n = 98), very low birthweight (average RR 3.31, 95% CI 1.58 to 6.91, Tau² = 0, I² = 0%, three trials, n = 98), and respiratory distress syndrome (average RR 5.07, 95% CI 1.75 to 14.70, Tau² = 0, I² = 0%, three trials, n = 98). However, given the low number of trials, as well as substantial heterogeneity and subgroup differences, these data must be interpreted cautiously.No trials reported on long-term infant neurodevelopmental outcomes. There were no physical exam-indicated cerclages available for comparison among the studies included. AUTHORS' CONCLUSIONS This review is based on limited data from five small studies of average to above average quality. For multiple gestations, there is no evidence that cerclage is an effective intervention for preventing preterm births and reducing perinatal deaths or neonatal morbidity.
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Affiliation(s)
- Timothy J Rafael
- Winthrop University Hospital, MineolaDivision of Maternal‐Fetal Medicine, Department of Obstetrics and GynecologyNew YorkUSA
| | - Vincenzo Berghella
- Jefferson Medical College of Thomas Jefferson UniversityDivision of Maternal‐Fetal Medicine, Department of Obstetrics and Gynecology834 Chestnut StreetSuite 400PhiladelphiaPennsylvaniaUSAPA 19107
| | - Zarko Alfirevic
- The University of LiverpoolDepartment of Women's and Children's HealthFirst Floor, Liverpool Women's NHS Foundation TrustCrown StreetLiverpoolUKL8 7SS
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Corchia C, Da Frè M, Di Lallo D, Gagliardi L, Macagno F, Carnielli V, Miniaci S, Cuttini M. Mortality and major morbidities in very preterm infants born from assisted conception or naturally conceived: results of the area-based ACTION study. BMC Pregnancy Childbirth 2014; 14:307. [PMID: 25193062 PMCID: PMC4177255 DOI: 10.1186/1471-2393-14-307] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Accepted: 07/22/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The use of assisted conception (AC) has been associated with higher risk of adverse perinatal outcome. Few data are available on the outcome of AC-neonates when pregnancy ends before 32 weeks of gestational age.The aim of this study was to compare the short-term outcome of AC- and naturally conceived preterm infants <32 weeks gestation. METHODS The area-based cohort study ACTION collected data on births 22-31 weeks gestation occurred in 2003-05 in 6 Italian regions. Infants born to 2529 mothers with known mode of conception were studied. The main outcomes were hospital mortality and survival free from major morbidities (IVH grade 3-4, cPVL, ROP stage ≥3, BPD), and were assessed separately for single and multiple infants. Other outcomes were also investigated. Multivariable logistic analyses were used to adjust for maternal and infants' characteristics. To account for the correlation of observations within intensive care units, robust variance and standard error estimates of regression parameters were computed. RESULTS AC was used in 6.4% of mothers. Infants were 2934; 314 (10.7%) were born after AC. Multiples were 86.0% among AC and 21.7% among non-AC babies. In multivariable analysis no statistically significant difference in hospital mortality and survival without major morbidities was found between AC and non-AC infants. The risk of BPD was lower in AC than in non-AC multiples (aOR 0.41, CI 0.20-0.87), and this finding did not change after controlling for mechanical ventilation (aOR 0.42, CI 0.20-0.85) or presence of a patent ductus arteriosus (aOR 0.39, CI 0.18-0.84). CONCLUSION When the analysis is restricted to very preterm infants and stratified by multiplicity, no significant associations between AC and increased risk of short-term mortality and survival without major morbidities emerge. This result is consistent with previous studies, and may confirm the hypothesis that the adverse effects of AC are mediated by preterm birth. However, larger appropriately powered studies are needed before definitely excluding the possibility of adverse events linked to AC in infants born before 32 weeks gestation.
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Affiliation(s)
- Carlo Corchia
- ICBD, International Centre on Birth Defects and Prematurity, via Carlo Mirabello 14, 00195 Rome, Italy.
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Bodeau-Livinec F, Zeitlin J, Blondel B, Arnaud C, Fresson J, Burguet A, Subtil D, Marret S, Rozé JC, Marchand-Martin L, Ancel PY, Kaminski M. Do very preterm twins and singletons differ in their neurodevelopment at 5 years of age? Arch Dis Child Fetal Neonatal Ed 2013; 98:F480-7. [PMID: 23864442 DOI: 10.1136/archdischild-2013-303737] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Twins have inconsistently shown poorer outcomes than singletons. Although a high proportion of twins are born very preterm, data are sparse on the long-term outcomes in very preterm twins. The objective of this study was to compare mortality and neurodevelopmental outcomes of very preterm singletons and twins and to study outcomes in relation to factors specific to twins. DESIGN Birth cohort study Etude Epidemiologique sur les Petits Ages Gestationnels (EPIPAGE). SETTING Nine regions in France. PATIENTS All very preterm live births occurring from 22 to 32 weeks of gestation in all maternity wards of nine French regions in 1997 (n=2773). MAIN OUTCOMES MEASURES Neurodevelopmental status, including cerebral palsy, and a cognitive assessment with the Kaufman Assessment Battery for Children, with scores on the Mental Processing Composite (MPC) scale, was available for 1732 and 1473 children at 5 years of age, respectively. RESULTS Among live births, twins had higher hospital mortality than singletons (adjusted (a)OR: 1.4 (95% CI 1.1 to 1.9)). Among survivors, there was no crude difference at 5 years between twins and singletons in the prevalence of cerebral palsy (8.0% vs 9.1%, respectively), MPC <70 (9.5% vs 11.1%) and mean MPC (94.6 vs 94.4). However, after adjustment for sex, gestational age, intrauterine growth restriction and social factors, twins were more likely to have lower MPC scores (mean difference: -2.4 (95% CI-4.8 to 0.01)). Live born twins had a higher risk of mortality when birth weight discordance was present (aOR:2.9 (95% CI 1.7 to 4.8)), but there were no differences in long-term outcomes. CONCLUSIONS Compared with very preterm singletons, twins had higher mortality, no difference with respect to severe deficiencies, but slightly lower MPC scores at 5 years.
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Corchia C, Ferrante P, Da Frè M, Di Lallo D, Gagliardi L, Carnielli V, Miniaci S, Piga S, Macagno F, Cuttini M. Cause-specific mortality of very preterm infants and antenatal events. J Pediatr 2013; 162:1125-32, 1132.e1-4. [PMID: 23337093 DOI: 10.1016/j.jpeds.2012.11.093] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 09/24/2012] [Accepted: 11/09/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To assess the relationship between antenatal factors and cause-specific risk of death in a large area-based cohort of very preterm infants. STUDY DESIGN The ACTION (Accesso alle Cure e Terapie Intensive Ostetriche e Neonatali) study recruited during an 18-month period all infants 22-31 weeks' gestational age admitted to neonatal care in 6 Italian regions (n=3040). We analyzed the data of 2974 babies without lethal or acutely life-threatening malformations. Cause-specific risks of death adjusted for competing causes were calculated, and region-stratified multiple Cox regression analyses were used to study the association between cause-specific mortality and infants' characteristics, pregnancy complications, antenatal steroids, and place of birth. RESULTS Deaths attributable to respiratory problems and intraventricular hemorrhage prevailed in the first 2 weeks of life, and those attributable to infections and gastrointestinal diseases afterwards. Antepartum hemorrhage was associated with respiratory deaths (hazard ratio [HR] 1.6, 95% CI 1.1-2.4), and maternal infection with deaths attributable to asphyxia (HR 32.5, 95% CI 4.1-259.4) and to respiratory problems (HR 2.8, 95% CI 1.6-5.2). Preterm premature rupture of membranes increased the likelihood of deaths due to neonatal infection (HR 1.8, 95% CI 1.0-3.1), and preterm labor/contractions of those due to respiratory (HR 1.5, 95% CI 1.1-2.0) and gastrointestinal diseases (HR 5.8, 95% CI 2.1-16.3). In addition, a birth weight z-score<-1 was associated with increasing hazards of death resulting from asphyxia, late infections, respiratory, and gastrointestinal diseases. CONCLUSIONS Different complications of pregnancy lead to different cause-specific mortality patterns in very preterm infants.
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Affiliation(s)
- Carlo Corchia
- International Center on Birth Defects and Prematurity, Rome, Italy
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Causes of delivery and outcomes of very preterm twins stratified to zygosity. Twin Res Hum Genet 2012; 15:532-6. [PMID: 22853920 DOI: 10.1017/thg.2012.33] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The increasing rates of preterm birth among twins implicate that solid data on associated risks and outcomes are required. Assessment of zygosity is often based on clinical criteria (evaluation of placenta; same gender, birth weight discordance as surrogate criteria for monochorionic/monozygotic twins). The aim of this study was to compare clinical versus genetic assessment of zygosity and to compare causes of preterm delivery as well as outcome data of very-low-birth-weight (VLBW; birth weight <1,500 g) twins stratified to zygosity. In a multicenter study, we selected n=176 sets of same gender twins and determined zygosity genetically. In a subgroup of 123 sets of twins, the attending physicians at the study centers were asked to document the parameter 'zygosity' (monozygotic/dizygotic) on the basis of their clinical judgment. Concordance between genetic and clinical assessment was 62.7% for monozygotic twins and 88.9% for dizygotic twins, respectively. Outcome parameters (death, BPD, ROP, NEC, IVH) were comparable in both groups. Genetically dizygotic twins were significantly more often born due to intrauterine infection (33% vs. 20% in monozygotic twins, p<.01) and antenatal antibiotics were more frequently given to mothers of dizygotic twins (62% vs. 47% in monozygotic twins, p<.01). Obstetric complications such as twin-twin-transfusion-syndrome were only seen in monozygotic twins as expected. The unexpected increase of antenatal antibiotic treatment and birth due to intrauterine infection in dizygotic twins should be confirmed in additional VLBW twin-cohorts.
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Twins born over weekends: are they at risk for elevated infant mortality? Arch Gynecol Obstet 2012; 286:1349-55. [PMID: 22797696 DOI: 10.1007/s00404-012-2463-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 07/03/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To assess the impact of the day of birth on twin mortality in a population sample. METHODS We analyzed weekend versus weekday twin births from the United States national twin birth data for the periods 1989-2002. We computed adjusted hazard ratios (HR) and 95% confidence intervals (CI) to assess the association between infant mortality and weekday of birth using the Cox proportional hazards model. RESULTS The crude rates for all types of mortality were found to be significantly higher for twins born on weekends than on weekdays. After adjustment, only post-neonatal mortality risk was higher on weekends as compared to weekdays [Hazards ratio (HR)=1.19, CI: 1.04, 1.36]. Twins of white mothers were at greater risk for neonatal death (HR=1.16, CI: 1.08, 1.24) but were less likely to experience post-neonatal death (HR=0.68, CI: 0.64, 0.76) as compared to twins of black mothers. We found an interaction between maternal age and weekday of birth. Twins born on weekends to teenage mothers (age<18) had a 35% greater risk for neonatal death (HR=1.35, CI: 1.06, 1.71) while those born on weekends to older mothers did not show elevated risk for any of the mortality indices. CONCLUSION Increased risks for post-neonatal death are significantly higher amongst twins born on weekends as compared to weekdays. Further research is required to identify the detailed differences in structure and procedures that result in the disadvantage associated with weekend birth.
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Corchia C, Orlando SM. Level of activity of neonatal intensive care units and mortality among very preterm infants: a nationwide study in Italy. J Matern Fetal Neonatal Med 2012; 25:2739-45. [PMID: 22708555 DOI: 10.3109/14767058.2012.703721] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVES To investigate the relationships between mortality of infants <32 weeks gestation and neonatal intensive care units' (NICUs) volume of activity, daily number of high-dependent infants (HDIs) and geographical area in Italy. METHODS The study involved 105 neonatal units in 2005. Data were collected prospectically and through monthly cross-sectional investigations. Patients receiving respiratory care were defined as HDIs. Univariate and multivariable methods were used for analysis. RESULTS Babies enrolled were 4014. The overall mortality was 18.8%. An adjusted nearly two-fold increase in mortality was found in Southern compared to Northern regions. Volume of activity was not associated with mortality. When compared to infants admitted to NICUs in the highest tertile of the median number of HDIs/day (>2.5 patients/day), the adjusted odds ratios were 1.52 (95% CI = 1.14-2.02) for those in the 2nd tertile (1.1-2.5 patients/day) and 1.47 (95% CI = 1.02-2.13) for those in the lowest tertile (≤1 patient/day). After stratification by geographical area, this relationship was present in Southern, to a lesser extent in Central, but not in Northern regions. CONCLUSIONS In Italy, striking geographical differences in mortality of very preterm infants are present. NICUs' average daily number of HDIs is a better predictor of mortality than the volume of activity.
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Affiliation(s)
- Carlo Corchia
- International Centre on Birth Defects and Prematurity, Rome, Italy.
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Rafael TJ, Berghella V, Alfirevic Z. Cervical stitch (cerclage) for preventing preterm birth in multiple pregnancy. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2011. [DOI: 10.1002/14651858.cd009166] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schaaf JM, Mol BWJ, Abu-Hanna A, Ravelli ACJ. Trends in preterm birth: singleton and multiple pregnancies in the Netherlands, 2000-2007. BJOG 2011; 118:1196-204. [PMID: 21668771 DOI: 10.1111/j.1471-0528.2011.03010.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Several studies have reported increasing trends in preterm birth in developed countries, mainly attributable to an increase in medically indicated preterm births. Our aim was to describe trends in preterm birth among singleton and multiple pregnancies in the Netherlands. DESIGN Prospective cohort study. SETTING Nationwide study. POPULATION We studied 1,451,246 pregnant women from 2000 to 2007. METHODS We assessed trends in preterm birth. We subdivided preterm birth into spontaneous preterm birth after premature prelabour rupture of membranes (pPROM), medically indicated preterm birth and spontaneous preterm birth without pPROM. We performed analyses separately for singletons and multiples. MAIN OUTCOME MEASURES The primary outcome was preterm birth, defined as birth before 37 weeks of gestation, with very preterm birth (<32 weeks of gestation) being a secondary outcome. RESULTS The risk of preterm birth was 7.7% and the risk of very preterm birth was 1.3%. In singleton pregnancies, the preterm birth risk decreased significantly from 6.4% to 6.0% (P < 0.0001), mainly as a result of the decrease in spontaneous preterm birth without pPROM (3.6-3.1%, P < 0.0001). In multiple pregnancies, the preterm birth risk increased significantly (47.3-47.7%, P = 0.047), mainly as a result of medically indicated preterm birth, which increased from 15.0% to 17.9% (P < 0.0001). CONCLUSION In the Netherlands, the preterm birth risk in singleton pregnancies decreased significantly over the years. The trend of increasing preterm birth risk reported in other countries was only observed in (medically indicated) preterm birth in multiple pregnancies.
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Affiliation(s)
- J M Schaaf
- Department of Medical Informatics Department of Obstetrics and Gynaecology, Academic Medical Centre, Amsterdam, The Netherlands.
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Zeitlin J, El Ayoubi M, Jarreau PH, Draper ES, Blondel B, Künzel W, Cuttini M, Kaminski M, Gortner L, Van Reempts P, Kollée L, Papiernik E. Impact of fetal growth restriction on mortality and morbidity in a very preterm birth cohort. J Pediatr 2010; 157:733-9.e1. [PMID: 20955846 DOI: 10.1016/j.jpeds.2010.05.002] [Citation(s) in RCA: 147] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 04/12/2010] [Accepted: 05/03/2010] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To assess the impact of being small for gestational age (SGA) on very preterm mortality and morbidity rates by using different birthweight percentile thresholds and whether these effects differ by the cause of the preterm birth. STUDY DESIGN The study included singletons and twins alive at onset of labor between 24 and 31 weeks of gestation without congenital anomalies from the Models of Organising Access to Intensive Care for very preterm births very preterm cohort in 10 European regions in 2003 (n = 4525). Outcomes were mortality, intraventricular hemorrhage grade III and IV, cystic periventricular leukomalacia, and bronchopulmonary dysplasia (BPD). Birthweight percentiles in 6 classes were analyzed by pregnancy complication. RESULTS The mortality rate was higher for infants with birthweights <25th percentile when compared with the 50th to 74th percentile (adjusted odds ratio, 3.98 [95% CI, 2.79-5.67] for <10th; adjusted odds ratio, 2.15 [95% CI, 1.54-3.00] for 10th-24th). BPD declined continuously with increasing birthweight. There was no association for periventricular leukomalacia or intraventricular hemorrhage. Seventy-five percent of infants with birthweights <10th percentile were from pregnancies complicated by hypertension or indicated deliveries associated with growth restriction. However, stratifying for pregnancy complications yielded similar risk patterns. CONCLUSIONS A 25th percentile cutoff point was a means of identifying infants at higher risk of death and a continuous measure better described risks of BPD. Lower birthweights were associated with poor outcomes regardless of pregnancy complications.
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Affiliation(s)
- Jennifer Zeitlin
- INSERM, UMR S953, IFR 69, Epidemiological Research Unit on Perinatal Health and Women's and Children's Health, UPMC Université Paris, Paris, France.
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