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Costa STB, Costa P, Graça AM, Abrantes M. Delivery Mode and Neurological Complications in Very Low Birth Weight Infants. Am J Perinatol 2024; 41:1238-1244. [PMID: 35378547 DOI: 10.1055/a-1815-1842] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
OBJECTIVE The risk of intraventricular hemorrhage (IVH) and periventricular leukomalacia is associated with low birth weight and gestational age. Caesarean section (CS) may reduce the risk of IVH, although it has been a matter of debate. The aim of this study was to evaluate the influence of the mode of delivery (MOD) on the development of IVH and cystic periventricular leukomalacia (cPVL). STUDY DESIGN We analyzed an initial cohort of 11,023 very low birth weight (VLBW) infants born between January 2010 and December 2019. Infants with major malformations and gestational age <23 weeks and ≥32 weeks were excluded. A final cohort of 8,251 newborns was analyzed. Data was collected from Portuguese National very low birth weight registry. Cases were classified as vaginal delivery (VD) or CS. Outcome was assessed in univariate and logistic regression analyses. RESULTS The median gestational age was 29 weeks (IQR 3.3) and the median weight was 1,100 g (IQR 555). The prevalence of IVH was significantly higher in the VD group versus the CS group, across all grading levels:1,144 newborns had grade I IVH (16% VD vs. 14% CS, p <0.01), 706 had grade II IVH (12% VD vs. 7.6% CS, p <0.01), and 777 had grade III IVH (14% VD vs. 7.9% CS, p <0.01). Post-hemorrhagic ventricular dilatation occurred in 457 newborns (8.3% VD vs. 4.6% CS, p <0.01) and 456 newborns had periventricular hemorrhagic infarction (8.4% VD vs. 4.5% CS, p <0.01). There was no association between MOD and cPVL. After applying a logistic regression analysis, including known risk factors for IVH and cPVL, VD was independently associated with an increased risk of IVH (odds ratio [OR] 1.600[1.423-1.799], p <0.001) and its complications (OR 1.440[1.195-1.735], p <0.001). MOD was not associated with an increased risk of cPVL. CONCLUSION Our study suggests that CS is associated with a reduced risk of IVH and its complications in preterm VLBW infants < 32 weeks of gestational age. A CS should be considered in this group of infants to prevent the development of IVH and its complications. KEY POINTS · IVH and cPVL are risk factors for neurological disabilities.. · CS may decrease the risk of IVH in preterms <32 weeks GA.. · There is no association between the MOD and cPVL..
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Affiliation(s)
- Sara Todo Bom Costa
- Serviço de Neonatologia, Departamento de Pediatria, Centro Hospitalar Universitário de Lisboa Norte, Lisboa, Portugal
| | - Paula Costa
- Serviço de Neonatologia, Departamento de Pediatria, Centro Hospitalar Universitário de Lisboa Norte, Lisboa, Portugal
- Clínica Universitária de Pediatria, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - André Mendes Graça
- Serviço de Neonatologia, Departamento de Pediatria, Centro Hospitalar Universitário de Lisboa Norte, Lisboa, Portugal
- Clínica Universitária de Pediatria, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Margarida Abrantes
- Serviço de Neonatologia, Departamento de Pediatria, Centro Hospitalar Universitário de Lisboa Norte, Lisboa, Portugal
- Clínica Universitária de Pediatria, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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Pineda R, Vesoulis Z, El Ters N, Mathur A. aEEG in the first 3 days after extremely preterm delivery relates to neurodevelopmental outcomes. J Perinatol 2024; 44:857-864. [PMID: 38553599 PMCID: PMC11161402 DOI: 10.1038/s41372-024-01945-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVES Investigate relationships between aEEG in the first 72 h in extremely preterm infants with 1) infant, medical, and environmental factors, and 2) infant feeding and neurobehavioral outcomes at term and school-age. METHODS Sixty-four preterm infants (≤28 weeks gestation) were enrolled within the first 24-hours of life and had two-channel aEEG until 72 h of life. Standardized neurobehavioral and feeding assessments were conducted at term, and parent-reported outcomes were documented at 5-7 years. RESULTS Lower aEEG Burdjalov scores (adjusted for gestational age) were related to vaginal delivery (p = 0.04), cerebral injury (p = 0.01), Black race (p < 0.01) and having unmarried parents (p = 0.02). Lower Burdjalov scores related to less NICU Network Neurobehavioral Scale arousal (p = 0.002) at term and poorer BRIEF global executive function (p = 0.004), inhibition (p = 0.007), working memory (p = 0.02), material organization (p = 0.0008), metacognition (p = 0.01), and behavioral regulation (p = 0.02) at 5-7 years. We did not observe relationships of early aEEG to feeding outcomes or sensory processing measures. CONCLUSION Early aEEG within the first 72 h of life was related to medical and sociodemographic factors as well as cognitive outcome at 5-7 years.
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Affiliation(s)
- Roberta Pineda
- Chan Division of Occupational Science and Occupational Therapy, University of Southern California, Los Angeles, CA, USA.
- Keck School of Medicine, Department of Pediatrics, Los Angeles, CA, USA.
- Gehr Family Center for Health Systems Science and Innovation, University of Southern California, Los Angeles, CA, USA.
- Program in Occupational Therapy, Washington University St. Louis, St. Louis, MO, USA.
| | - Zachary Vesoulis
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Nathalie El Ters
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Amit Mathur
- Department of Pediatrics, St. Louis University, St. Louis, MO, USA
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Korček P, Širc J, Berka I, Kučera J, Straňák Z. Does perinatal management have the potential to reduce the risk of intraventricular hemorrhage in preterm infants? Front Pediatr 2024; 12:1361074. [PMID: 38357510 PMCID: PMC10864433 DOI: 10.3389/fped.2024.1361074] [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: 12/24/2023] [Accepted: 01/18/2024] [Indexed: 02/16/2024] Open
Abstract
Background Intraventricular hemorrhage (IVH) is an important cause of neurodevelopmental impairment in preterm infants. A number of risk factors for IVH have already been proposed; however, some controversies regarding optimal perinatal management persist. This study aimed to identify perinatal and neonatal attributes associated with IVH in a representative population of preterm infants. Methods Perinatal data on 1,279 very preterm infants (<32 weeks of gestation) admitted to a tertiary neonatal intensive care unit were analyzed. The records were assessed using univariate analysis and logistic regression model to evaluate the risk factors for any and high-grade IVH (grade III-IV according to the classification by Papile) within the first week after birth. Results The incidence of any IVH was 14.3% (183/1,279); the rate of low-grade (I-II) and high-grade (III-IV) IVH was 9.0% (115/1,279) and 5.3% (68/1,279), respectively. Univariate analysis revealed multiple factors significantly associated with intraventricular hemorrhage: lower gestational age and birth weight, absence of antenatal steroids, vaginal delivery, low Apgar score at 5 min, delivery room intubation, surfactant administration, high frequency oscillation, pulmonary hypertension, pulmonary hemorrhage, tension pneumothorax, persistent ductus arteriosus, hypotension and early onset sepsis. Logistic regression confirmed lower gestational age, vaginal delivery, ductus arteriosus and early onset sepsis to be independent predictors for any IVH. Pulmonary hemorrhage, tension pneumothorax and early onset sepsis were independent risk factors for high-grade IVH. Complete course of antenatal steroids was associated with a lower risk for any (odds ratio 0.58, 95% confidence interval 0.39-0.85; P = .006) and for high-grade intraventricular hemorrhage (odds ratio 0.36, 95% confidence interval 0.20-0.65; P < .001). Conclusion The use of antenatal steroids and mode of delivery are crucial in the prevention of IVH; however, our study did not confirm the protective effect of placental transfusion. Severe respiratory insufficiency and circulatory instability remain to be powerful contributors to the development of IVH. Early detection and management of perinatal infection may also help to reduce the rate of brain injury and improve neurodevelopment in high-risk newborns.
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Affiliation(s)
- Peter Korček
- Neonatal Intensive Care Unit, Institute for the Care of Mother and Child, Prague, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jan Širc
- Neonatal Intensive Care Unit, Institute for the Care of Mother and Child, Prague, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ivan Berka
- Neonatal Intensive Care Unit, Institute for the Care of Mother and Child, Prague, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jáchym Kučera
- Neonatal Intensive Care Unit, Institute for the Care of Mother and Child, Prague, Czech Republic
| | - Zbyněk Straňák
- Neonatal Intensive Care Unit, Institute for the Care of Mother and Child, Prague, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Huang YY, Chang JH, Chen CH, Peng CC, Hsu CH, Ko MHJ, Chen CY, Chang HY. Association of mode of delivery with short-term and neurodevelopmental outcomes in periviable singleton infants: A nationwide database study. Int J Gynaecol Obstet 2023; 163:307-314. [PMID: 37170688 DOI: 10.1002/ijgo.14833] [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: 01/04/2023] [Revised: 04/01/2023] [Accepted: 04/17/2023] [Indexed: 05/13/2023]
Abstract
OBJECTIVE To evaluate the association of mode of delivery (MOD) with short-term and neurodevelopmental outcomes at 2 years of corrected age (CA) in periviable singleton infants. METHODS This retrospective cohort study of the Taiwan Premature Infant Follow-up Network database between 2010 and 2016 compared non-anomalous singleton deliveries (cesarean delivery [CD] vs vaginal delivery [VD]) between 22 0/7 and 25 6/7 gestational weeks. Major morbidities, mortality, and neurodevelopmental outcomes were evaluated at 2-year CA. RESULTS The CD and VD groups included 354 and 472 infants, respectively. The intraventricular hemorrhage (IVH) rate was lower in the CD group (54% vs 66%, P = 0.001), but severe IVH differed non-significantly between groups (20% vs 26%, P = 0.057). In the small-for-gestational age subgroup, CD was associated with lower IVH (56% vs 84%, adjusted odds ratio [aOR] 0.17, 95% confidence interval [CI] 0.04-0.69) and better survival without neurodevelopmental impairment (29% vs 8%, aOR, 6.64, 95% CI 1.02-43.29) after controlling for potential confounders. CONCLUSION The optimal MOD for periviable singleton birth and its impact are unclear. CD in periviable singleton births is associated with a decreased IVH risk, without improvement in severe IVH, mortality, or neurodevelopment at 2-year CA. The small-for-gestational age subgroup may benefit from CD for better survival without neurodevelopmental impairment.
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Affiliation(s)
- Yi-Ya Huang
- Department of Pediatrics, Hsinchu Municipal MacKay Children's Hospital, Hsinchu, Taiwan
| | - Jui-Hsing Chang
- Division of Neonatology, Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Chia-Huei Chen
- Division of Neonatology, Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan
| | - Chun-Chin Peng
- Division of Neonatology, Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Chyong-Hsin Hsu
- Division of Neonatology, Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan
| | - Mary Hsin-Ju Ko
- Department of Pediatrics, Hsinchu Municipal MacKay Children's Hospital, Hsinchu, Taiwan
| | - Chen-Yu Chen
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Hung-Yang Chang
- Division of Neonatology, Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
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Zhao Y, Zhang W, Tian X. Analysis of risk factors of early intraventricular hemorrhage in very-low-birth-weight premature infants: a single center retrospective study. BMC Pregnancy Childbirth 2022; 22:890. [PMID: 36456995 PMCID: PMC9713978 DOI: 10.1186/s12884-022-05245-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND This study aimed to determine the risk factors of early intraventricular hemorrhage (IVH) in very-low-birth-weight (VLBW) premature infants in China to guide early interventions and improve the survival and quality of life of these infants. METHODS Data on 421 VLBW premature infants admitted to the neonatal intensive care unit of Tianjin Central Hospital of Gynecology Obstetrics between July 2017 and July 2019 were retrospectively evaluated. Data on head ultrasound results, maternal pregnancy complications, and perinatal conditions were reviewed to evaluate the association between maternal and neonatal factors and the development and severity of IVH. RESULTS Univariate analysis showed that the incidence of early IVH was significantly higher in neonates with early gestational age, delivered after spontaneous labor, low birth weight, 5-minute Apgar score ≤ 7, invasive mechanical ventilation, and early onset sepsis (χ2 = 11.087, 16.868, 4.779, 11.170, 6.655, and 6.260, respectively; P < 0.05), but it was significantly lower in the presence of gestational hypertension (χ2 = 4.373, P = 0.037). In addition, severe IVH was significantly associated with early gestational age, low birth weight, 5-minute Apgar score ≤ 7, and neonatal sepsis (χ2 = 11.599, 8.263, 11.172, and 7.749, respectively; P < 0.05). Logistic regression analysis showed that antenatal glucocorticoid use was associated with significantly reduced incidence of severe IVH (OR = 0.095, 95% CI = 0.012-0.739, P = 0.024). CONCLUSION Appropriate mode of delivery may effectively reduce the incidence of IVH in VLBW premature infants. The antenatal glucocorticoid use may also protect against severe IVH. The focus on steroid prophylaxis, mode of delivery and prevention of perinatal asphyxia should be stressed in China.
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Affiliation(s)
- Ying Zhao
- grid.216938.70000 0000 9878 7032Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Tianjin Key Laboratory of Human Development and Reproductive Regulation, Nankai University Maternity Hospital, No.156, Sanlu Road, Nankai district, Tianjin, 300052 China
| | - Wanxian Zhang
- grid.216938.70000 0000 9878 7032Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Tianjin Key Laboratory of Human Development and Reproductive Regulation, Nankai University Maternity Hospital, No.156, Sanlu Road, Nankai district, Tianjin, 300052 China
| | - Xiuying Tian
- grid.216938.70000 0000 9878 7032Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Tianjin Key Laboratory of Human Development and Reproductive Regulation, Nankai University Maternity Hospital, No.156, Sanlu Road, Nankai district, Tianjin, 300052 China
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Luca A, Vinturache A, Ilea C, Avasiloaiei A, Paduraru L, Carauleanu A, Sripcariu I, Socolov D. Birth trauma in preterm spontaneous vaginal and cesarean section deliveries: A 10-years retrospective study. PLoS One 2022; 17:e0275726. [PMID: 36251717 PMCID: PMC9576096 DOI: 10.1371/journal.pone.0275726] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE We compared birth injuries for spontaneous vaginal (VD) and caesarean section (CS) deliveries in preterm and term pregnancies. METHODS A retrospective cohort study was conducted in a single tertiary center, between January 1st, 2007, and December 31st, 2017. The study included 62330 singleton pregnancies delivered after 24 0/7 weeks gestation. Multivariable analyses compared trauma at birth, birth hypoxia and birth asphyxia in term and preterm deliveries, stratified by mode of birth, VD versus CS. Main outcome measure was trauma at birth including intracranial laceration and haemorrhage, injuries to scalp, injuries to central and peripheral nervous system, fractures to skeleton, facial and eye injury. RESULTS The incidence of preterm deliveries was 10.9%. Delivery of preterm babies by CS increased from 37.0% in 2007 to 60.0% in 2017. The overall incidence of all birth trauma was 16.2%. When stratified by mode of delivery, birth trauma was recorded in 23.4% of spontaneous vaginal deliveries and 7.5% of CS deliveries (aOR 3.3, 95%CI 3.1-3.5). When considered all types of birth trauma, incidence of trauma at birth was higher after 28 weeks gestation in VD compared to CS (28-31 weeks, aOR 1.7, 95% CI 1.3-2.3; 32-36 weeks, aOR 4.2, 95% CI 3.6-4.9; >37 weeks, aOR 3.3, 95% CI 3.1-3.5). There was no difference in the incidence of birth trauma before 28 weeks gestation between VD and CS (aOR 0.8, 95% CI 0.5-1.2). Regarding overall life-threatening birth trauma or injuries at birth with severe consequences such as cerebral and intraventricular haemorrhage, cranial and brachial nerve injury, fractures of long bones and clavicle, eye and facial injury, there was no difference in vaginal preterm deliveries compared to CS deliveries (p > 0.05 for all). CONCLUSION CS is not protective of injury at birth. When all types of birth trauma are considered, these are more common in spontaneous VD, thus favoring CS as preferred method of delivery to avoid trauma at birth. However, when stratified by severity of birth trauma, preterm babies delivered vaginally are not at higher risk of major birth trauma than those delivered by CS.
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Affiliation(s)
- Alina Luca
- Department of Obstetrics & Gynecology, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
- CuzaVoda Maternity University Hospital, Iasi, Romania
| | - Angela Vinturache
- Department of Obstetrics and Gynecology, University of Alberta & Department of Nuroscience, University of Lethbridge, Alberta, Canada
- Department of Obstetrics & Gynecology, Grande Prairie Regional Hospital, Alberta, Canada
- * E-mail:
| | - Ciprian Ilea
- Department of Obstetrics & Gynecology, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
- CuzaVoda Maternity University Hospital, Iasi, Romania
| | - Andreea Avasiloaiei
- Department of Obstetrics & Gynecology, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
- CuzaVoda Maternity University Hospital, Iasi, Romania
| | - Luminita Paduraru
- Department of Obstetrics & Gynecology, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
- CuzaVoda Maternity University Hospital, Iasi, Romania
| | - Alexandru Carauleanu
- Department of Obstetrics & Gynecology, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
- CuzaVoda Maternity University Hospital, Iasi, Romania
| | - Ioana Sripcariu
- Department of Obstetrics & Gynecology, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
- CuzaVoda Maternity University Hospital, Iasi, Romania
| | - Demetra Socolov
- Department of Obstetrics & Gynecology, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
- CuzaVoda Maternity University Hospital, Iasi, Romania
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Lu J, Yue G, Wang Q, Zhou X, Ju R. A review on development of placental transfusion in term and preterm infants. Front Pediatr 2022; 10:890988. [PMID: 36186636 PMCID: PMC9520323 DOI: 10.3389/fped.2022.890988] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
In recent years, it has been verified that placental transfusion can replenish blood volume of neonates, improve organ perfusion in the early postnatal stage, and facilitate the transition from fetal circulation to adult circulation. Meanwhile, placental transfusion can reduce the need for blood transfusion and the onset of intraventricular hemorrhage, necrotizing enterocolitis, bronchopulmonary dysplasia, and other complications. Furthermore, it can improve the iron store and the long-term prognosis of central nervous system, and reduce infant mortality. Different methods have been used, including delayed cord clamping, intact umbilical cord milking, and cut umbilical cord milking. The World Health Organization (WHO) and other academic organizations recommend the routine use of delayed cord clamping at birth for the most vigorous term and preterm neonates. However, details of placental transfusion should be clarified, and the short/long-term impacts of this technology on some infants with special conditions still require further study.
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Affiliation(s)
| | | | | | | | - Rong Ju
- Neonatal Department, Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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Norman JE, Lawton J, Stock SJ, Siassakos D, Norrie J, Hallowell N, Chowdhry S, Hart RI, Odd D, Brewin J, Culshaw L, Lee-Davey C, Tebbutt H, Whyte S. Feasibility and design of a trial regarding the optimal mode of delivery for preterm birth: the CASSAVA multiple methods study. Health Technol Assess 2021; 25:1-102. [PMID: 34751645 DOI: 10.3310/hta25610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Around 60,000 babies are born preterm (prior to 37 weeks' gestation) each year in the UK. There is little evidence on the optimal birth mode (vaginal or caesarean section). OBJECTIVE The overall aim of the CASSAVA project was to determine if a trial to define the optimal mode of preterm birth could be carried out and, if so, determine what sort of trial could be conducted and how it could best be performed. We aimed to determine the specific groups of preterm women and babies for whom there are uncertainties about the best planned mode of birth, and if there would be willingness to recruit to, and participate in, a randomised trial to address some, but not all, of these uncertainties. This project was conducted in response to a Heath Technology Assessment programme commissioning call (17/22 'Mode of delivery for preterm infants'). METHODS We conducted clinician and patient surveys (n = 224 and n = 379, respectively) to identify current practice and opinion, and a consensus survey and Delphi workshop (n = 76 and n = 22 participants, respectively) to inform the design of a hypothetical clinical trial. The protocol for this clinical trial/vignette was used in telephone interviews with clinicians (n = 24) and in focus groups with potential participants (n = 13). RESULTS Planned sample size and data saturation was achieved for all groups except for focus groups with participants, as this had to be curtailed because of the COVID-19 pandemic and data saturation was not achieved. There was broad agreement from parents and health-care professionals that a trial is needed. The clinician survey demonstrated a variety of practice and opinion. The parent survey suggested that women and their families generally preferred vaginal birth at later gestations and caesarean section for preterm infants. The interactive workshop and Delphi consensus process confirmed the need for more evidence (hence the case for a trial) and provided rich information on what a future trial should entail. It was agreed that any trial should address the areas with most uncertainty, including the management of women at 26-32 weeks' gestation, with either spontaneous preterm labour (cephalic presentation) or where preterm birth was medically indicated. Clear themes around the challenges inherent in conducting any trial emerged, including the concept of equipoise itself. Specific issues were as follows: different clinicians and participants would be in equipoise for each clinical scenario, effective conduct of the trial would require appropriate resources and expertise within the hospital conducting the trial, potential participants would welcome information on the trial well before the onset of labour and minority ethnic groups would require tailored approaches. CONCLUSION Given the lack of evidence and the variation of practice and opinion in this area, and having listened to clinicians and potential participants, we conclude that a trial should be conducted and the outlined challenges resolved. FUTURE WORK The CASSAVA project could be used to inform the design of a randomised trial and indicates how such a trial could be carried out. Any future trial would benefit from a pilot with qualitative input and a study within a trial to inform optimal recruitment. LIMITATIONS Certainty that a trial could be conducted can be determined only when it is attempted. TRIAL REGISTRATION Current Controlled Trials ISRCTN12295730. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 61. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Jane E Norman
- Faculty of Health Sciences, University of Bristol, Bristol, UK
| | - Julia Lawton
- Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Sarah J Stock
- Usher Institute, University of Edinburgh, Edinburgh, UK
| | | | - John Norrie
- Edinburgh Clinical Trials Unit, University of Edinburgh, Edinburgh, UK
| | - Nina Hallowell
- Ethox Centre and Wellcome Centre for Ethics & Humanities, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | | | - Ruth I Hart
- Usher Institute, University of Edinburgh, Edinburgh, UK
| | - David Odd
- Division of Population Medicine, School of Medicine, University of Cardiff, Cardiff, UK
| | | | | | | | | | - Sonia Whyte
- Tommy's Centre for Maternal and Fetal Health, MRC Centre for Maternal and Fetal Health, University of Edinburgh, Edinburgh, UK
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Wolf HT, Weber T, Schmidt S, Norman M, Varendi H, Piedvache A, Zeitlin J, Huusom LD. Mode of delivery and adverse short- and long-term outcomes in vertex-presenting very preterm born infants: a European population-based prospective cohort study. J Perinat Med 2021; 49:923-931. [PMID: 34280959 DOI: 10.1515/jpm-2020-0468] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/14/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To compare mortality, morbidity and neurodevelopment by mode of delivery (MOD) for very preterm births with low prelabour risk of caesarean section (CS). METHODS The study was a population-based prospective cohort study in 19 regions in 11 European countries. Multivariable mixed effects models and weighted propensity score models were used to estimate adjusted odds ratios (aOR) by observed MOD and the unit's policy regarding MOD. Population: Singleton vertex-presenting live births at 24 + 0 to 31 + 6 weeks of gestation without serious congenital anomalies, preeclampsia, HELLP or eclampsia, antenatal detection of growth restriction and prelabour CS for fetal or maternal indications. RESULTS Main outcome measures: A composite of in-hospital mortality and intraventricular haemorrhage (grade III/IV) or periventricular leukomalacia. Secondary outcomes were components of the primary outcome, 5 min Apgar score <7 and moderate to severe neurodevelopmental impairment at two years of corrected age. The rate of CS was 29.6% but varied greatly between countries (8.0-52.6%). MOD was not associated with the primary outcome (aOR for CS 0.99; 95% confidence interval [CI] 0.65-1.50) when comparing units with a systematic policy of CS or no policy of MOD to units with a policy of vaginal delivery (aOR 0.88; 95% CI 0.59-1.32). No association was observed for two-year neurodevelopment impairment for CS (aOR 1.15; 95% CI 0.66-2.01) or unit policies (aOR 1.04; 95% CI 0.63-1.70). CONCLUSIONS Among singleton vertex-presenting live births without medical complications requiring a CS at 24 + 0 to 31 + 6 weeks of gestation, CS was not associated with improved neonatal or long-term outcomes.
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Affiliation(s)
- Hanne Trap Wolf
- Department of Gynaecology and Obstetrics, Hvidovre University Hospital, Hvidovre, Denmark
| | - Tom Weber
- Department of Gynaecology and Obstetrics, Hvidovre University Hospital, Hvidovre, Denmark
| | - Stephan Schmidt
- Department of Obstetrics, University Hospital, Philipps University, Marburg, Germany
| | - Mikael Norman
- Department of Clinical Science, Intervention and Technology, Division of Paediatrics, Karolinska Institutet, Stockholm, Sweden.,Department of Neonatal Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Heili Varendi
- University of Tartu, Tartu University Hospital, Tartu, Estonia
| | - Aurélie Piedvache
- Inserm UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics Sorbonne Paris Cité, DHU Risks in Pregnancy, Paris Descartes University, Paris, France.,Department of Social Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Jennifer Zeitlin
- Inserm UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics Sorbonne Paris Cité, DHU Risks in Pregnancy, Paris Descartes University, Paris, France
| | - Lene Drasbek Huusom
- Department of Gynaecology and Obstetrics, Hvidovre University Hospital, Hvidovre, Denmark
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Morgan AS, Waheed S, Gajree S, Marlow N, David AL. Maternal and infant morbidity following birth before 27 weeks of gestation: a single centre study. Sci Rep 2021; 11:288. [PMID: 33431902 PMCID: PMC7801674 DOI: 10.1038/s41598-020-79445-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 11/30/2020] [Indexed: 11/09/2022] Open
Abstract
Delivery at extreme preterm gestational ages (GA) [Formula: see text] weeks is challenging with limited evidence often focused only on neonatal outcomes. We reviewed management and short term maternal, fetal and neonatal outcomes of births for 132 women (22 + 0 to 26 + 6 weeks' GA) with a live fetus at admission to hospital and in labour or at planned emergency Caesarean section: 103 singleton and 29 (53 live fetuses) twin gestations. Thirty women (23%) had pre-existing medical problems, 110 (83%) had antenatal complications; only 17 (13%) women experienced neither. Major maternal labour and delivery complications affected 35 women (27%). 151 fetuses (97%) were exposed to antenatal steroids, 24 (15%) to tocolysis and 70 (45%) to magnesium sulphate. Delivery complications affected 11 fetuses, with 12 labour or delivery room deaths; survival to discharge was 75% (117/156), increasing with GA: 25% (1/4), 75% (18/24), 69% (29/42), 73% (33/45) and 88% (36/41) at 22, 23, 24, 25 and 26 weeks GA respectively (p = 0.024). No statistically important impact was seen from twin status, maternal illness or obstetric management. Even in a specialist perinatal unit antenatal and postnatal maternal complications are common in extreme preterm births, emphasising the need to include maternal as well as neonatal outcomes.
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Affiliation(s)
- Andrei S Morgan
- Research Department of Neonatology, Elizabeth Garrett Anderson Institute for Women's Health, University College London, 2nd floor, Medical School Building, 74 Huntley Street, London, WC1E 6AU, UK.,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, Hôpital Tenon, Rue de la Chine, 75020, Paris, France.,SAMU 93-SMUR Pédiatrique, CHI André Gregoire, Groupe Hospitalier Universitaire Paris Seine-Saint-Denis, Assistance Publique des Hôpitaux de Paris, Montreuil, France.,Women's Health Division, University College London Hospitals NHS Foundation Trust, 250 Euston Road, London, NW1 2PG, UK
| | - Saadia Waheed
- Women's Health Division, University College London Hospitals NHS Foundation Trust, 250 Euston Road, London, NW1 2PG, UK
| | - Shivani Gajree
- Women's Health Division, University College London Hospitals NHS Foundation Trust, 250 Euston Road, London, NW1 2PG, UK
| | - Neil Marlow
- Research Department of Neonatology, Elizabeth Garrett Anderson Institute for Women's Health, University College London, 2nd floor, Medical School Building, 74 Huntley Street, London, WC1E 6AU, UK.,Women's Health Division, University College London Hospitals NHS Foundation Trust, 250 Euston Road, London, NW1 2PG, UK.,NIHR University College London Hospitals BRC, Maple House, 149 Tottenham Court Road, London, W1T 7DN, UK
| | - Anna L David
- Women's Health Division, University College London Hospitals NHS Foundation Trust, 250 Euston Road, London, NW1 2PG, UK. .,NIHR University College London Hospitals BRC, Maple House, 149 Tottenham Court Road, London, W1T 7DN, UK. .,Research Department of Maternal Fetal Medicine, Institute for Women's Health, University College London, 2nd floor, Medical School Building, 74 Huntley Street, London, WC1E 6AU, UK.
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11
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MacLeod R, Paulson JN, Okalany N, Okello F, Acom L, Ikiror J, Cowan FM, Tann CJ, Dyet LE, Hagmann CF, Burgoine K. Intraventricular haemorrhage in a Ugandan cohort of low birth weight neonates: the IVHU study. BMC Pediatr 2021; 21:12. [PMID: 33407279 PMCID: PMC7786968 DOI: 10.1186/s12887-020-02464-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/10/2020] [Indexed: 11/10/2022] Open
Abstract
Background Globally, 15 million neonates are born prematurely every year, over half in low income countries (LICs). Premature and low birth weight neonates have a higher risk of intraventricular haemorrhage (IVH). There are minimal data regarding IVH in sub-Saharan Africa. This study aimed to examine the incidence, severity and timing of and modifiable risk factors for IVH amongst low-birth-weight neonates in Uganda. Methods This is a prospective cohort study of neonates with birthweights of ≤2000 g admitted to a neonatal unit (NU) in a regional referral hospital in eastern Uganda. Maternal data were collected from interviews and medical records. Neonates had cranial ultrasound (cUS) scans on the day of recruitment and days 3, 7 and 28 after birth. Risk factors were tabulated and are presented alongside odds ratios (ORs) and adjusted odds ratios (aORs) for IVH incidence. Outcomes included incidence, timing and severity of IVH and 28-day survival. Results Overall, 120 neonates were recruited. IVH was reported in 34.2% of neonates; 19.2% had low grade (Papile grades 1–2) and 15% had high grade (Papile grades 3–4). Almost all IVH (90.2%) occurred by day 7, including 88.9% of high grade IVH. Of those with known outcomes, 70.4% (81/115) were alive on day 28 and survival was not associated with IVH. We found that vaginal delivery, gestational age (GA) < 32 weeks and resuscitation in the NU increased the odds of IVH. Of the 6 neonates who received 2 doses of antenatal steroids, none had IVH. Conclusion In this resource limited NU in eastern Uganda, more than a third of neonates born weighing ≤2000 g had an IVH and the majority of these occurred by day 7. We found that vaginal birth, earlier gestation and need for resuscitation after admission to the NU increased the risk of IVH. This study had a high rate of SGA neonates and the risk factors and relationship of these factors with IVH in this setting needs further investigation. The role of antenatal steroids in the prevention of IVH in LICs also needs urgent exploration. Supplementary Information The online version contains supplementary material available at 10.1186/s12887-020-02464-4.
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Affiliation(s)
- R MacLeod
- Neonatal Unit, Mbale Regional Referral Hospital, P.O. Box 1966, Mbale, Uganda
| | - J N Paulson
- Department of Biostatistics, Product Development, Genentech, Inc., South San Francisco, California, USA
| | - N Okalany
- Neonatal Unit, Mbale Regional Referral Hospital, P.O. Box 1966, Mbale, Uganda
| | - F Okello
- Varimetrics Group Limited, P. O Box 2190, Mbale, Uganda
| | - L Acom
- Neonatal Unit, Mbale Regional Referral Hospital, P.O. Box 1966, Mbale, Uganda
| | - J Ikiror
- Neonatal Unit, Mbale Regional Referral Hospital, P.O. Box 1966, Mbale, Uganda
| | - F M Cowan
- Department of Paediatrics, Imperial College London, London, UK
| | - C J Tann
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK.,MRC/UVRI & LSHTM Uganda Research Unit, PO Box 149, Entebbe, Uganda.,Neonatal Medicine, University College London Hospitals NHS Trust, 235 Euston Road, London, UK
| | - L E Dyet
- Neonatal Medicine, University College London Hospitals NHS Trust, 235 Euston Road, London, UK
| | - C F Hagmann
- Department of Neonatology and Pediatric Intensive Care, Children's University Hospital of Zurich, Zurich, Switzerland.,Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - K Burgoine
- Neonatal Unit, Mbale Regional Referral Hospital, P.O. Box 1966, Mbale, Uganda.
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12
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Gillam-Krakauer M, Slaughter JC, Cotton RB, Robinson BE, Reese J, Maitre NL. Outcomes in infants < 29 weeks of gestation following single-dose prophylactic indomethacin. J Perinatol 2021; 41:109-118. [PMID: 32948814 PMCID: PMC7499931 DOI: 10.1038/s41372-020-00814-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 08/05/2020] [Accepted: 09/02/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Prophylactic indomethacin (3 doses) decreases patent ductus arteriosus (PDA) and intraventricular hemorrhage (IVH) in preterm infants. The study aim was to determine whether single-dose indomethacin (SD-INDO) decreases PDA, IVH, and improves motor function. METHODS A retrospective cohort (2007-2014) compared infants born < 29 weeks who did (n = 299) or did not (n = 85) receive SD-INDO and estimated outcomes association with ordinal logistic regression, adjusting for multiple variables using propensity scores. RESULTS Infants who received SD-INDO were more premature (p < 0.001) but had lower odds of PDA (OR 0.26 [0.15, 0.44], p < 0.005), PDA receiving treatment (OR 0.12 [0.03, 0.47], p < 0.005), death (OR 0.41 [0.20, 0.86], p = 0.02), and CP severity (OR 0.33 [0.12, 0.89], p = 0.03). There was less IVH (OR 0.58 [0.36, 0.94], p = 0.03) when adjusted for gestational age. CONCLUSIONS SD-INDO is associated with decreased PDA and CP severity and improved survival.
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Affiliation(s)
- Maria Gillam-Krakauer
- Mildred T. Stahlman Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - James C. Slaughter
- grid.412807.80000 0004 1936 9916Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN USA
| | - Robert B. Cotton
- grid.412807.80000 0004 1936 9916Mildred T. Stahlman Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN USA
| | - Blaine E. Robinson
- grid.412807.80000 0004 1936 9916Vanderbilt University Medical Center, Nashville, TN USA
| | - Jeff Reese
- grid.412807.80000 0004 1936 9916Mildred T. Stahlman Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN USA ,grid.412807.80000 0004 1936 9916Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN USA
| | - Nathalie L. Maitre
- grid.240344.50000 0004 0392 3476Department of Pediatrics Nationwide Children’s Hospital, Columbus, OH USA ,grid.412807.80000 0004 1936 9916Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN USA
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13
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Mahoney L, Luyt K, Harding D, Odd D. Treatment for Post-hemorrhagic Ventricular Dilatation: A Multiple-Treatment Meta-Analysis. Front Pediatr 2020; 8:238. [PMID: 32656162 PMCID: PMC7324764 DOI: 10.3389/fped.2020.00238] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/20/2020] [Indexed: 11/13/2022] Open
Abstract
Objective: To perform a systematic review and multiple-treatment meta-analysis for the treatment of premature infants with post-hemorrhagic ventricular dilatation (PHVD), to prevent death or long-term neuro-disability. Design/Method: A systematic review was performed using PubMed, EMBASE, and the Cochrane Library. A free-word search was performed to identify likely relevant literature intervention trials of PHVD in preterm infants. Initially, network mapping was performed followed by performing a Bayesian random-effects model using the Markov chain Monte Carlo method. Areas under the cumulative ranking curve (SUCRA) were calculated as a measure of the probability that each intervention was likely to be the 1st, 2nd, 3rd, etc. best therapy. Primary outcome measure was death or moderate or severe neurodevelopmental outcome at or beyond 12 months of corrected age. Results: Ten different trials were identified, enrolling 700 individuals (449 for the primary outcome). Seven intervention categories were identified, and of the 15 possible pair comparisons, 6 have been studied directly. In the multiple-treatment meta-analysis, no comparison reached conventional levels of statistical significance. Drainage Irrigation and Fibrinolytic Therapy (DRIFT) had the highest probability of being the best treatment for the primary outcome (82.1%), followed by CSF removal (10.8%), conservative management (6.7%), and then diuretic therapy (0.4%). Conclusions: PHVD is a significant cause of death and disability in developed countries, yet few therapeutic options have so far been trialed. While new therapies are urgently needed for these infants, at present, NMA shows that DRIFT appears to be the most likely candidate to improve outcomes after sIVH.
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Affiliation(s)
- Liam Mahoney
- Neonatal Unit, North Bristol NHS Trust, Bristol, United Kingdom
- Academic Department of Paediatrics, Brighton and Sussex Medical School, Brighton, United Kingdom
| | - Karen Luyt
- Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - David Harding
- Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - David Odd
- School of Medicine, University of Cardiff, Cardiff, United Kingdom
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14
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Yeo KT, Thomas R, Chow SS, Bolisetty S, Haslam R, Tarnow-Mordi W, Lui K. Improving incidence trends of severe intraventricular haemorrhages in preterm infants <32 weeks gestation: a cohort study. Arch Dis Child Fetal Neonatal Ed 2020; 105:145-150. [PMID: 31201252 DOI: 10.1136/archdischild-2018-316664] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 05/08/2019] [Accepted: 05/14/2019] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To describe the trend and risk factors for severe intraventricular haemorrhage (IVH) among infants <32 weeks gestation. DESIGN Population-based cohort study. SETTING Australia and New Zealand. PATIENTS All preterm infants <32 weeks gestation in the Australian and New Zealand Neonatal Network (ANZNN) from 1995 to 2012. INTERVENTIONS Comparison of IVH incidence between 6-year epochs. MAIN OUTCOME MEASURES Overall IVH and severe IVH incidence. RESULTS A total of 60 068 infants were included, and overall survival to discharge increased from 89% to 93% over the three epochs. As the percentage of infants with IVH decreased from 23.6% to 21.3% and 21.4% (p<0.001) from epoch 1 to 3, respectively, fewer survivors had severe IVH (4.0%, 3.3% and 2.8%, respectively, p<0.001). Over time, there were fewer antenatal complications, higher antenatal steroid usage and more caesarean-section births. Fewer infants were intubated at birth, had low 5 min Apgar score, had sepsis or pneumothorax needing drainage. Adjusted for perinatal confounders, there was significant reduction in odds of severe IVH from epoch 1 to 3 (adjusted OR (AOR) 0.8, 95% CI 0.7 to 0.9). Factors associated with development of severe IVH include no antenatal steroids (AOR 1.7, 95% CI 1.5 to 1.9), male (AOR 1.3, 95% CI 1.2 to 1.4), 5 min Apgar score <7 (AOR 2.0, 95% CI 1.9 to 2.2), intubated at birth (AOR 2.0, 95% CI 1.8 to 2.2), extremely low gestational age (AOR 4.0, 95% CI 3.7 to 4.4), outborn (AOR 1.6, 95% CI 1.5 to 1.8) and vaginal delivery (AOR 1.4, 95% CI 1.3 to 1.6). CONCLUSIONS Along with increased survival among infants born <32 weeks gestation, the incidence of severe IVH has decreased over the 18 years, especially in the most recent period. This coincided with reduction in rates of risk factors for severe IVH development.
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Affiliation(s)
- Kee Thai Yeo
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia.,Department of Neonatology, KK Women's and Children's Hospital, Singapore
| | - Reji Thomas
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia.,Mount Gambier Hospital, Mount Gambier, South Australia, Australia
| | - Sharon Sw Chow
- National Perinatal Epidemiology and Statistics Unit, Centre for Big Data Research in Health, University of New South Wales, Sydney, New South Wales, Australia.,School of Women's & Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Srinivas Bolisetty
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia.,School of Women's & Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Ross Haslam
- Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - William Tarnow-Mordi
- National Health & Medical Research Council Trials Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Kei Lui
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia.,School of Women's & Children's Health, University of New South Wales, Sydney, New South Wales, Australia
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15
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Katheria A, Reister F, Essers J, Mendler M, Hummler H, Subramaniam A, Carlo W, Tita A, Truong G, Davis-Nelson S, Schmölzer G, Chari R, Kaempf J, Tomlinson M, Yanowitz T, Beck S, Simhan H, Dempsey E, O’Donoghue K, Bhat S, Hoffman M, Faksh A, Arnell K, Rich W, Finer N, Vaucher Y, Khanna P, Meyers M, Varner M, Allman P, Szychowski J, Cutter G. Association of Umbilical Cord Milking vs Delayed Umbilical Cord Clamping With Death or Severe Intraventricular Hemorrhage Among Preterm Infants. JAMA 2019; 322:1877-1886. [PMID: 31742630 PMCID: PMC6865839 DOI: 10.1001/jama.2019.16004] [Citation(s) in RCA: 153] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
IMPORTANCE Umbilical cord milking as an alternative to delayed umbilical cord clamping may provide equivalent benefits to preterm infants, but without delaying resuscitation. OBJECTIVE To determine whether the rates of death or severe intraventricular hemorrhage differ among preterm infants receiving placental transfusion with umbilical cord milking vs delayed umbilical cord clamping. DESIGN, SETTING, AND PARTICIPANTS Noninferiority randomized clinical trial of preterm infants (born at 23-31 weeks' gestation) from 9 university and private medical centers in 4 countries were recruited and enrolled between June 2017 and September 2018. Planned enrollment was 750 per group. However, a safety signal comprising an imbalance in the number of severe intraventricular hemorrhage events by study group was observed at the first interim analysis; enrollment was stopped based on recommendations from the data and safety monitoring board. The planned noninferiority analysis could not be conducted and a post hoc comparison was performed instead. Final date of follow-up was December 2018. INTERVENTIONS Participants were randomized to umbilical cord milking (n = 236) or delayed umbilical cord clamping (n = 238). MAIN OUTCOMES AND MEASURES The primary outcome was a composite of death or severe intraventricular hemorrhage to determine noninferiority of umbilical cord milking with a 1% noninferiority margin. RESULTS Among 540 infants randomized, 474 (88%) were enrolled and completed the trial (mean gestational age of 28 weeks; 46% female). Twelve percent (29/236) of the umbilical cord milking group died or developed severe intraventricular hemorrhage compared with 8% (20/238) of the delayed umbilical cord clamping group (risk difference, 4% [95% CI, -2% to 9%]; P = .16). Although there was no statistically significant difference in death, severe intraventricular hemorrhage was statistically significantly higher in the umbilical cord milking group than in the delayed umbilical cord clamping group (8% [20/236] vs 3% [8/238], respectively; risk difference, 5% [95% CI, 1% to 9%]; P = .02). The test for interaction between gestational age strata and treatment group was significant for severe intraventricular hemorrhage only (P = .003); among infants born at 23 to 27 weeks' gestation, severe intraventricular hemorrhage was statistically significantly higher with umbilical cord milking than with delayed umbilical cord clamping (22% [20/93] vs 6% [5/89], respectively; risk difference, 16% [95% CI, 6% to 26%]; P = .002). CONCLUSIONS AND RELEVANCE In this post hoc analysis of a prematurely terminated randomized clinical trial of umbilical cord milking vs delayed umbilical cord clamping among preterm infants born at less than 32 weeks' gestation, there was no statistically significant difference in the rate of a composite outcome of death or severe intraventricular hemorrhage, but there was a statistically significantly higher rate of severe intraventricular hemorrhage in the umbilical cord milking group. The early study termination and resulting post hoc nature of the analyses preclude definitive conclusions. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03019367.
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Affiliation(s)
- Anup Katheria
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, California
| | - Frank Reister
- Department of Obstetrics, University of Ulm, Ulm, Germany
| | - Jochen Essers
- Department of Pediatrics, University of Ulm, Ulm, Germany
| | - Marc Mendler
- Department of Pediatrics, University of Ulm, Ulm, Germany
| | - Helmut Hummler
- Division of Neonatology, Department of Pediatrics, Sidra Medicine, Doha, Qatar
| | | | - Waldemar Carlo
- Department of Pediatrics, University of Alabama at Birmingham
| | - Alan Tita
- Department of Obstetrics, University of Alabama at Birmingham
| | - Giang Truong
- Department of Pediatrics, Loma Linda University, Loma Linda, California
| | | | - Georg Schmölzer
- Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Radha Chari
- Department of Obstetrics, University of Alberta, Edmonton, Canada
| | - Joseph Kaempf
- Women and Children’s Services, Providence St Vincent Medical Center, Portland, Oregon
| | - Mark Tomlinson
- Women and Children’s Services, Providence St Vincent Medical Center, Portland, Oregon
| | - Toby Yanowitz
- Department of Pediatrics, Magee Women’s Hospital of UPMC, Pittsburgh, Pennsylvania
| | - Stacy Beck
- Department of Obstetrics, Magee Women’s Hospital of UPMC, Pittsburgh, Pennsylvania
| | - Hyagriv Simhan
- Department of Obstetrics, Magee Women’s Hospital of UPMC, Pittsburgh, Pennsylvania
| | - Eugene Dempsey
- Department of Paediatrics and Child Health, University College Cork, Cork, Ireland
- INFANT Research Centre, University College Cork, Cork, Ireland
| | | | - Shazia Bhat
- Department of Pediatrics, Christiana Care Health System, Newark, Delaware
| | - Matthew Hoffman
- Department of Obstetrics, Christiana Care Health System, Newark, Delaware
| | - Arij Faksh
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, California
| | - Kathy Arnell
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, California
| | - Wade Rich
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, California
| | - Neil Finer
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, California
| | - Yvonne Vaucher
- Department of Radiology, Children’s Hospital Colorado, University of Colorado School of Medicine, Denver
| | - Paritosh Khanna
- Department of Radiology, Rady Children’s Hospital, San Diego, California
| | - Mariana Meyers
- Department of Radiology, Children’s Hospital Colorado, University of Colorado School of Medicine, Denver
| | - Michael Varner
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City
| | - Phillip Allman
- Department of Biostatistics, University of Alabama at Birmingham
| | - Jeff Szychowski
- Department of Biostatistics, University of Alabama at Birmingham
| | - Gary Cutter
- Department of Biostatistics, University of Alabama at Birmingham
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