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Sotiropoulos JX, Saugstad OD, Oei JL. Aspects on Oxygenation in Preterm Infants before, Immediately after Birth, and Beyond. Neonatology 2024:1-8. [PMID: 39089224 DOI: 10.1159/000540481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 06/21/2024] [Indexed: 08/03/2024]
Abstract
BACKGROUND Oxygen is crucial for life but too little (hypoxia) or too much (hyperoxia) may be fatal or cause lifelong morbidity. SUMMARY In this review, we discuss the challenges of balancing oxygen control in preterm infants during fetal development, the first few minutes after birth, in the neonatal intensive care unit and after hospital discharge, where intensive care monitoring and response to dangerous oxygen levels is more often than not, out of reach with current technologies and services. KEY MESSAGES Appropriate oxygenation is critically important even from before birth, but at no time is the need to strike a balance more important than during the first few minutes after birth, when body physiology is changing at its most rapid pace. Preterm infants, in particular, have a poor control of oxygen balance. Underdeveloped organs, especially of the lungs, require supplemental oxygen to prevent hypoxia. However, they are also at risk of hyperoxia due to immature antioxidant defenses. Existing evidence demonstrate considerable challenges that need to be overcome before we can ensure safe treatment of preterm infants with one of the most commonly used drugs in newborn care, oxygen.
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Affiliation(s)
- James X Sotiropoulos
- NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Ola D Saugstad
- Department of Pediatric Research, University of Oslo, Oslo, Norway
- Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ju Lee Oei
- NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia,
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia,
- Department of Newborn Care, The Royal Hospital for Women, Randwick, New South Wales, Australia,
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2
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Thomas AR, Foglia EE. Delivery Room Oxygen for Preterm Infants-Uncertainty Persists. JAMA Pediatr 2024; 178:746-748. [PMID: 38976277 DOI: 10.1001/jamapediatrics.2024.2116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Affiliation(s)
- Alyssa R Thomas
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Elizabeth E Foglia
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia
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3
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Sotiropoulos JX, Oei JL, Schmölzer GM, Libesman S, Hunter KE, Williams JG, Webster AC, Vento M, Kapadia V, Rabi Y, Dekker J, Vermeulen MJ, Sundaram V, Kumar P, Kaban RK, Rohsiswatmo R, Saugstad OD, Seidler AL. Initial Oxygen Concentration for the Resuscitation of Infants Born at Less Than 32 Weeks' Gestation: A Systematic Review and Individual Participant Data Network Meta-Analysis. JAMA Pediatr 2024; 178:774-783. [PMID: 38913382 PMCID: PMC11197034 DOI: 10.1001/jamapediatrics.2024.1848] [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: 02/06/2024] [Accepted: 04/03/2024] [Indexed: 06/25/2024]
Abstract
Importance Resuscitation with lower fractional inspired oxygen (FiO2) reduces mortality in term and near-term infants but the impact of this practice on very preterm infants is unclear. Objective To evaluate the relative effectiveness of initial FiO2 on reducing mortality, severe morbidities, and oxygen saturations (SpO2) in preterm infants born at less than 32 weeks' gestation using network meta-analysis (NMA) of individual participant data (IPD). Data Sources MEDLINE, Embase, CENTRAL, CINAHL, ClinicalTrials.gov, and WHO ICTRP from 1980 to October 10, 2023. Study Selection Eligible studies were randomized clinical trials enrolling infants born at less than 32 weeks' gestation comparing at least 2 initial oxygen concentrations for delivery room resuscitation, defined as either low (≤0.3), intermediate (0.5-0.65), or high (≥0.90) FiO2. Data Extraction and Synthesis Investigators from eligible studies were invited to provide IPD. Data were processed and checked for quality and integrity. One-stage contrast-based bayesian IPD-NMA was performed with noninformative priors and random effects and adjusted for key covariates. Main Outcomes and Measures The primary outcome was all-cause mortality at hospital discharge. Secondary outcomes were morbidities of prematurity and SpO2 at 5 minutes. Results IPD were provided for 1055 infants from 12 of the 13 eligible studies (2005-2019). Resuscitation with high (≥0.90) initial FiO2 was associated with significantly reduced mortality compared to low (≤0.3) (odds ratio [OR], 0.45; 95% credible interval [CrI], 0.23-0.86; low certainty) and intermediate (0.5-0.65) FiO2 (OR, 0.34; 95% CrI, 0.11-0.99; very low certainty). High initial FiO2 had a 97% probability of ranking first to reduce mortality. The effects on other morbidities were inconclusive. Conclusions and Relevance High initial FiO2 (≥0.90) may be associated with reduced mortality in preterm infants born at less than 32 weeks' gestation compared to low initial FiO2 (low certainty). High initial FiO2 is possibly associated with reduced mortality compared to intermediate initial FiO2 (very low certainty) but more evidence is required.
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Affiliation(s)
- James X. Sotiropoulos
- National Health and Medical Research Council Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
- School of Women’s and Children’s Health, Faculty of Medicine and Health, University of New South Wales, Kensington, New South Wales, Australia
- Department of Newborn Care, the Royal Hospital for Women, Randwick, New South Wales, Australia
| | - Ju Lee Oei
- School of Women’s and Children’s Health, Faculty of Medicine and Health, University of New South Wales, Kensington, New South Wales, Australia
- Department of Newborn Care, the Royal Hospital for Women, Randwick, New South Wales, Australia
| | - Georg M. Schmölzer
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
- Centre for the Studies of Asphyxia and Resuscitation, Neonatology, Royal Alexandra Hospital, Edmonton, Alberta, Canada
| | - Sol Libesman
- National Health and Medical Research Council Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Kylie E. Hunter
- National Health and Medical Research Council Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Jonathan G. Williams
- National Health and Medical Research Council Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Angela C. Webster
- National Health and Medical Research Council Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Maximo Vento
- University and Polytechnic Hospital La Fe, Valencia, Spain
- Health Research Institute La Fe, Valencia, Spain
| | - Vishal Kapadia
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas
| | - Yacov Rabi
- Department of Pediatrics, University of Calgary, Alberta Children’s Hospital Research Institute, Calgary, Alberta, Canada
| | - Janneke Dekker
- Willem-Alexander Children’s Hospital, Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Marijn J. Vermeulen
- Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Venkataseshan Sundaram
- Division of Neonatology, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Praveen Kumar
- Division of Neonatology, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Risma K. Kaban
- Department of Child Health, University of Indonesia Medical School/Dr Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Rinawati Rohsiswatmo
- Department of Child Health, University of Indonesia Medical School/Dr Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Ola D. Saugstad
- Department of Pediatric Research, University of Oslo, Oslo, Norway
- Ann and Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Anna Lene Seidler
- National Health and Medical Research Council Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
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Sotiropoulos JX, Binoy S, Pham TAN, Yates K, Allgood CL, Kunjunju A, Tracy M, Smyth J, Oei JL. Air or Oxygen for Infant Resuscitation: A Prospective Cohort Study of Moderate-Late Preterm Infants Requiring Delivery Room Resuscitation. Neonatology 2024:1-9. [PMID: 38889702 DOI: 10.1159/000539221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/27/2024] [Indexed: 06/20/2024]
Abstract
INTRODUCTION Due to concerns of oxidative stress and injury, most clinicians currently use lower levels of fractional inspired oxygen (FiO2, 0.21-0.3) to initiate respiratory support for moderate to late preterm (MLPT, 32-36 weeks gestation) infants at birth. Whether this practice achieves recommended oxygen saturation (SpO2) targets is unknown. METHODS We aimed to determine SpO2 trajectories of MLPT infants requiring respiratory support at birth. We conducted a prospective, opportunistic, observational study with consent waiver. Preductal SpO2 readings were obtained during the first 10 min of life from infants between 32 and 36 weeks gestation requiring respiratory support in the delivery room. Primary outcome was reaching a minimum SpO2 80% at 5 min of life. The study was prospectively registered (ACTRN12620001252909). RESULTS A total of 76 eligible infants were recruited between February 2021 and March 2022 from 5 hospitals in Australia. Most (n = 58, 76%) had respiratory support initiated with FiO2 0.21 (range 0.21-1.0) using CPAP (92%). Median SpO2 at 5 min was 81% (interquartile range [IQR] 67-90) and 93% (IQR 86-96) at 10 min. At 5 min, 18/43 (42%) infants had SpO2 below 80% and only 8/43 (19%) reached SpO2 80-85%. CONCLUSIONS Many MLPT infants requiring respiratory support do not achieve recommended SpO2 targets. In very preterm infants, SpO2 <80% at 5 min of life increases risk of death, intraventricular haemorrhage, and neurodevelopmental impairment. The implications on this practice on the health outcomes of MLPT infants are unclear and require further research.
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Affiliation(s)
- James X Sotiropoulos
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia,
- NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia,
| | - Sheeba Binoy
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia
| | - Thy A N Pham
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia
| | - Kylie Yates
- Department of Paediatrics, St George Hospital, Kogarah, New South Wales, Australia
| | - Catherine L Allgood
- Department of Paediatrics, Campbelltown Hospital, University of Western Sydney School of Medicine, Campbelltown, New South Wales, Australia
| | - Ansar Kunjunju
- Department of Newborn Care, The Wollongong Hospital, Wollongong, New South Wales, Australia
| | - Mark Tracy
- Department of Newborn Care, Westmead Hospital, Westmead, New South Wales, Australia
| | - John Smyth
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia
| | - Ju Lee Oei
- Department of Newborn Care, Royal Hospital for Women, Randwick, New South Wales, Australia
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Mamidi RR, McEvoy CT. Oxygen in the neonatal ICU: a complicated history and where are we now? Front Pediatr 2024; 12:1371710. [PMID: 38751747 PMCID: PMC11094359 DOI: 10.3389/fped.2024.1371710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/17/2024] [Indexed: 05/18/2024] Open
Abstract
Despite major advances in neonatal care, oxygen remains the most commonly used medication in the neonatal intensive care unit (NICU). Supplemental oxygen can be life-saving for term and preterm neonates in the resuscitation period and beyond, however use of oxygen in the neonatal period must be judicious as there can be toxic effects. Newborns experience substantial hemodynamic changes at birth, rapid energy consumption, and decreased antioxidant capacity, which requires a delicate balance of sufficient oxygen while mitigating reactive oxygen species causing oxidative stress. In this review, we will discuss the physiology of neonates in relation to hypoxia and hyperoxic injury, the history of supplemental oxygen in the delivery room and beyond, supporting clinical research guiding trends for oxygen therapy in neonatal care, current practices, and future directions.
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Affiliation(s)
- Rachna R. Mamidi
- Division of Neonatology, Oregon Health & Science University, Portland, OR, United States
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Schmölzer GM, Asztalos EV, Beltempo M, Boix H, Dempsey E, El-Naggar W, Finer NN, Hudson JA, Mukerji A, Law BHY, Yaskina M, Shah PS, Sheta A, Soraisham A, Tarnow-Mordi W, Vento M. Does the use of higher versus lower oxygen concentration improve neurodevelopmental outcomes at 18-24 months in very low birthweight infants? Trials 2024; 25:237. [PMID: 38576007 PMCID: PMC10996184 DOI: 10.1186/s13063-024-08080-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/29/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND Immediately after birth, the oxygen saturation is between 30 and 50%, which then increases to 85-95% within the first 10 min. Over the last 10 years, recommendations regarding the ideal level of the initial fraction of inspired oxygen (FiO2) for resuscitation in preterm infants have changed from 1.0, to room air to low levels of oxygen (< 0.3), up to moderate concentrations (0.3-0.65). This leaves clinicians in a challenging position, and a large multi-center international trial of sufficient sample size that is powered to look at safety outcomes such as mortality and adverse neurodevelopmental outcomes is required to provide the necessary evidence to guide clinical practice with confidence. METHODS An international cluster, cross-over randomized trial of initial FiO2 of 0.3 or 0.6 during neonatal resuscitation in preterm infants at birth to increase survival free of major neurodevelopmental outcomes at 18 and 24 months corrected age will be conducted. Preterm infants born between 230/7 and 286/7 weeks' gestation will be eligible. Each participating hospital will be randomized to either an initial FiO2 concentration of either 0.3 or 0.6 to recruit for up to 12 months' and then crossed over to the other concentration for up to 12 months. The intervention will be initial FiO2 of 0.6, and the comparator will be initial FiO2 of 0.3 during respiratory support in the delivery room. The sample size will be 1200 preterm infants. This will yield 80% power, assuming a type 1 error of 5% to detect a 25% reduction in relative risk of the primary outcome from 35 to 26.5%. The primary outcome will be a composite of all-cause mortality or the presence of a major neurodevelopmental outcome between 18 and 24 months corrected age. Secondary outcomes will include the components of the primary outcome (death, cerebral palsy, major developmental delay involving cognition, speech, visual, or hearing impairment) in addition to neonatal morbidities (severe brain injury, bronchopulmonary dysplasia; and severe retinopathy of prematurity). DISCUSSION The use of supplementary oxygen may be crucial but also potentially detrimental to preterm infants at birth. The HiLo trial is powered for the primary outcome and will address gaps in the evidence due to its pragmatic and inclusive design, targeting all extremely preterm infants. Should 60% initial oxygen concertation increase survival free of major neurodevelopmental outcomes at 18-24 months corrected age, without severe adverse effects, this readily available intervention could be introduced immediately into clinical practice. TRIAL REGISTRATION The trial was registered on January 31, 2019, at ClinicalTrials.gov with the Identifier: NCT03825835.
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Affiliation(s)
- Georg M Schmölzer
- Centre for the Studies of Asphyxia and Resuscitation, Royal Alexandra Hospital, 10240 Kingsway Avenue NW, Edmonton, AB, T5H 3V9, Canada.
- Dept. of Pediatrics, University of Alberta, Edmonton, Canada.
| | - Elizabeth V Asztalos
- Department of Newborn & Developmental Paediatrics, Sunnybrook Health Sciences Centre and University of Toronto, Toronto, ON, Canada
| | - Marc Beltempo
- Departement of Pediatrics, Montreal Children's HospitalMcGill University Health CenterMcGill University, Montreal, QC, Canada
| | - Hector Boix
- Division of Neonatology, Dexeus Quironsalud University Hospital, Barcelona, Spain
| | - Eugene Dempsey
- INFANT Research Centre, University College Cork, Cork, Ireland
| | - Walid El-Naggar
- Department of Paediatrics, Dalhousie University, Halifax, Canada
| | - Neil N Finer
- School of Medicine, University of California, San Diego, CA, USA
- Sharp Mary Birch Hospital for Women and Newborns, San Diego, USA
| | - Jo-Anna Hudson
- Faculty of Medicine, Memorial University of Newfoundland, St. John's, NF, Canada
| | - Amit Mukerji
- Division of Neonatology, Department of Pediatrics, McMaster University, Hamilton, ON, Canada
| | - Brenda H Y Law
- Centre for the Studies of Asphyxia and Resuscitation, Royal Alexandra Hospital, 10240 Kingsway Avenue NW, Edmonton, AB, T5H 3V9, Canada
- Dept. of Pediatrics, University of Alberta, Edmonton, Canada
| | - Maryna Yaskina
- Women and Children's Health Research Institute (WCHRI), University of Alberta, Edmonton, Canada
| | - Prakesh S Shah
- Department of Pediatrics, Mount Sinai Hospital and University of Toronto, Toronto, Canada
| | - Ayman Sheta
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB, Canada
| | - Amuchou Soraisham
- Department of Pediatrics, Foothills Medical Centre, University of Calgary, Calgary, AB, Canada
- Alberta Childrens Hospital Research Institute, University of Calgary, Alberta, Canada
| | - William Tarnow-Mordi
- Trials Centre, National Health and Medical Research Council Clinical, University of Sydney, Camperdown, Australia
| | - Max Vento
- Department of Pediatrics, La Fe University and Polytechnic Hospital, Valencia, Spain
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Morin C, Simard É, See W, Sage M, Imane R, Nadeau C, Samson N, Lavoie PM, Chabot B, Marouan S, Tremblay S, Praud JP, Micheau P, Fortin-Pellerin É. Total liquid ventilation in an ovine model of extreme prematurity: a randomized study. Pediatr Res 2024; 95:974-980. [PMID: 37833531 DOI: 10.1038/s41390-023-02841-6] [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: 05/01/2023] [Revised: 08/16/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
BACKGROUND This study aimed at comparing cardiorespiratory stability during total liquid ventilation (TLV)-prior to lung aeration-with conventional mechanical ventilation (CMV) in extremely preterm lambs during the first 6 h of life. METHODS 23 lambs (11 females) were born by c-section at 118-120 days of gestational age (term = 147 days) to receive 6 h of TLV or CMV from birth. Lung samples were collected for RNA and histology analyses. RESULTS The lambs under TLV had higher and more stable arterial oxygen saturation (p = 0.001) and cerebral tissue oxygenation (p = 0.02) than the lambs in the CMV group in the first 10 min of transition to extrauterine life. Although histological assessment of the lungs was similar between the groups, a significant upregulation of IL-1a, IL-6 and IL-8 RNA in the lungs was observed after TLV. CONCLUSIONS Total liquid ventilation allowed for remarkably stable transition to extrauterine life in an extremely preterm lamb model. Refinement of our TLV prototype and ventilation algorithms is underway to address specific challenges in this population, such as minimizing tracheal deformation during the active expiration. IMPACT Total liquid ventilation allows for remarkably stable transition to extrauterine life in an extremely preterm lamb model. Total liquid ventilation is systematically achievable over the first 6 h of life in the extremely premature lamb model. This study provides additional incentive to pursue further investigation of total liquid ventilation as a transition tool for the most extreme preterm neonates.
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Affiliation(s)
- Christophe Morin
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Émile Simard
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Wendy See
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Michaël Sage
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Roqaya Imane
- Department of Pediatrics, Université de Montréal, Montreal, QC, Canada
| | - Charlène Nadeau
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Nathalie Samson
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Pascal M Lavoie
- Division of Neonatology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - Benoît Chabot
- Department of Microbiology and Infectiology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Sofia Marouan
- Department of Pathology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Sophie Tremblay
- Department of Pediatrics, Université de Montréal, Montreal, QC, Canada
| | - Jean-Paul Praud
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
- Department of Pediatrics, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Philippe Micheau
- Department of Mechanical Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Étienne Fortin-Pellerin
- Department of Pharmacology-Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada.
- Department of Pediatrics, Université de Sherbrooke, Sherbrooke, QC, Canada.
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Pallapothu B, Priyadarshi M, Singh P, Kumar S, Chaurasia S, Basu S. T-Piece resuscitator versus self-inflating bag for delivery room resuscitation in preterm neonates: a randomized controlled trial. Eur J Pediatr 2023; 182:5565-5576. [PMID: 37792092 DOI: 10.1007/s00431-023-05230-7] [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: 08/16/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 10/05/2023]
Abstract
The establishment of adequate ventilation is the cornerstone of neonatal resuscitation in the delivery room (DR). This parallel-group, accessor-blinded randomized controlled trial compared the changes in peripheral oxygen saturation (SpO2), heart rate (HR), and cerebral regional oxygen saturation (crSO2) with the use of a T-piece resuscitator (TPR) versus self-inflating bag (SIB) as a mode of providing positive pressure ventilation (PPV) during DR resuscitation in preterm neonates. Seventy-two preterm neonates were randomly allocated to receive PPV with TPR (n = 36) or SIB (n = 36). The primary outcome was SpO2 (%) at 5 min. The secondary outcomes included the time to achieve a SpO2 ≥ 80% and > 85%, HR > 100/min, fractional-inspired oxygen (FiO2) requirement, minute-specific SpO2, HR and FiO2 trends for the first 5 min of life, need for DR-intubation, crSO2, need and duration of respiratory support, and other in-hospital morbidities. Mean SpO2 at 5 min was 74.5 ± 17.8% and 69.4 ± 22.4%, in TPR and SIB groups, respectively [Mean difference, 95% Confidence Interval 5.08 (-4.41, 14.58); p = 0.289]. No difference was observed in the time to achieve a SpO2 ≥ 80% and > 85%, HR > 100/min, the requirement of FiO2, DR-intubation, and the need and duration of respiratory support. There was no significant difference in the minute-specific SpO2, HR, and FiO2 requirements for the first 5 min. CrSO2 (%) at one hour was lower by 5% in the TPR group compared to SIB; p = 0.03. Other complications were comparable. CONCLUSIONS TPR and SIB resulted in comparable SpO2 at 5 min along with similar minute-specific SpO2, HR, and FiO2 trends. CLINICAL TRIAL REGISTRATION Clinical trial registry of India, Registration no: CTRI/2021/10/037384, Registered prospectively on: 20/10/2021, https://ctri.icmr.org.in/ . WHAT IS KNOWN • Compared to self-inflating bags (SIB), T-piece resuscitators (TPR) provide more consistent inflation pressure and tidal volume as shown in animal and bench studies. • There is no strong recommendation for one device over the other in view of low certainty evidence. WHAT IS NEW • TPR and SIB resulted in comparable peripheral oxygen saturation (SpO2) at 5 min along with similar minute-specific SpO2, heart rate, and fractional-inspired oxygen requirement trends. • Short-term complications and mortality rates were comparable with both devices.
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Affiliation(s)
- Bhrajishna Pallapothu
- Department of Neonatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India
| | - Mayank Priyadarshi
- Department of Neonatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India
| | - Poonam Singh
- Department of Neonatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India
| | - Sourabh Kumar
- Department of Neonatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India
| | - Suman Chaurasia
- Department of Neonatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India
| | - Sriparna Basu
- Department of Neonatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India.
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9
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Roberts CT, O'Shea JE. Alternatives to neonatal intubation. Semin Fetal Neonatal Med 2023; 28:101488. [PMID: 38000926 DOI: 10.1016/j.siny.2023.101488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2023]
Abstract
Opportunities to learn and maintain competence in neonatal intubation have decreased. As many clinicians providing care to the newborn infant are not skilled in intubation, alternative strategies are critical. Most preterm infants breathe spontaneously, and require stabilisation rather than resuscitation at birth. Use of tactile stimulation, deferred cord clamping, and avoidance of hypoxia can help optimise breathing for these infants. Nasal devices appear a promising alternative to the face mask for early provision of respiratory support. In term and near-term infants, supraglottic airways may be the most effective initial approach to resuscitation. Use of supraglottic airways during resuscitation can be taught to a range of providers, and may reduce need for intubation. While face mask ventilation is an important skill, it is challenging to perform effectively. Identification of the best approach to training the use of these devices during neonatal resuscitation remains an important priority.
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Affiliation(s)
- Calum T Roberts
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia; The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia; Monash Newborn, Monash Children's Hospital, Melbourne, VIC, Australia.
| | - Joyce E O'Shea
- Department of Paediatrics, Royal Hospital for Sick Children, Glasgow, Scotland, United Kingdom
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10
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Sotiropoulos JX, Oei JL. The role of oxygen in the development and treatment of bronchopulmonary dysplasia. Semin Perinatol 2023; 47:151814. [PMID: 37783577 DOI: 10.1016/j.semperi.2023.151814] [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] [Indexed: 10/04/2023]
Abstract
Oxygen (O2) is crucial for both the development and treatment of one of the most important consequences of prematurity: bronchopulmonary dysplasia (BPD). In fetal life, the hypoxic environment is important for alveolar development and maturation. After birth, O2 becomes a double-edged sword. While O2 is needed to prevent hypoxia, it also causes oxidative stress leading to a plethora of morbidities, including retinopathy and BPD. The advent of continuous O2 monitoring with pulse oximeters has allowed clinicians to recognize the narrow therapeutic margins of oxygenation for the preterm infant, but more knowledge is needed to understand what these ranges are at different stages of the preterm infant's life, including at birth, in the neonatal intensive care unit and after hospital discharge. Future research, especially in innovative technologies such as automated O2 control and remote oximetry, will improve the understanding and treatment of the O2 needs of infants with BPD.
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Affiliation(s)
- J X Sotiropoulos
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Australia; Department of Newborn Care, The Royal Hospital for Women, Randwick, New South Wales, Australia; NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Australia
| | - J L Oei
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Australia; Department of Newborn Care, The Royal Hospital for Women, Randwick, New South Wales, Australia; NHMRC Clinical Trials Centre, Faculty of Medicine and Health, University of Sydney, Australia.
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11
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Sahni M, Bhandari V. Invasive and non-invasive ventilatory strategies for early and evolving bronchopulmonary dysplasia. Semin Perinatol 2023; 47:151815. [PMID: 37775369 DOI: 10.1016/j.semperi.2023.151815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
In the age of surfactant and antenatal steroids, neonatal care has improved outcomes of preterm infants dramatically. Since the early 2000's neonatologists have strived to decrease bronchopulmonary dysplasia (BPD) by decreasing ventilator-associated lung injury and utilizing many novel modes of non-invasive respiratory support. After the initial success with nasal continuous positive airway pressure, it was established that discontinuing invasive ventilation early in favor of non-invasive respiratory support is the most effective way to reduce the incidence of BPD. In this review, we discuss the management of the preterm lung from the time of delivery, through the phases of respiratory distress syndrome (early BPD) and then evolving BPD. The goal remains to optimize respiratory support of the preterm lung while minimizing ventilator-associated lung injury and oxygen toxicity. A multidisciplinary approach involving the medical team and family is quintessential in reaching this goal and involves adequate respiratory support, optimizing nutrition and fluid balance as well as preventing infections.
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Affiliation(s)
- Mitali Sahni
- Pediatrix Medical Group, Sunrise Children's Hospital, Las Vegas, NV, United States; University of Nevada, Las Vegas, NV, United States
| | - Vineet Bhandari
- Neonatology Research Laboratory (Room #206), Education and Research Building, Cooper University Hospital, Camden, NJ, United States; The Children's Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ, United States.
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12
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Gunawardana S, Arattu Thodika FMS, Murthy V, Bhat P, Williams EE, Dassios T, Milner AD, Greenough A. Respiratory function monitoring during early resuscitation and prediction of outcomes in prematurely born infants. J Perinat Med 2023; 51:950-955. [PMID: 36800988 DOI: 10.1515/jpm-2022-0538] [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: 11/07/2022] [Accepted: 01/25/2023] [Indexed: 02/21/2023]
Abstract
OBJECTIVES Over the last decade, there has been increased use of end-tidal carbon dioxide (ETCO2) and oxygen saturation (SpO2) monitoring during resuscitation of prematurely born infants in the delivery suite. Our objectives were to test the hypotheses that low end-tidal carbon dioxide (ETCO2) levels, low oxygen saturations (SpO2) and high expiratory tidal volumes (VTE) during the early stages of resuscitation would be associated with adverse outcomes in preterm infants. METHODS Respiratory recordings made in the first 10 min of resuscitation in the delivery suite of 60 infants, median GA 27 (interquartile range 25-29) weeks were analysed. The results were compared of infants who did or did not die or did or did not develop intracerebral haemorrhage (ICH) or bronchopulmonary dysplasia (BPD). RESULTS Twenty-five infants (42%) developed an ICH and 23 (47%) BPD; 11 (18%) died. ETCO2 at approximately 5 min after birth was lower in infants who developed an ICH, this remained significant after adjusting for gestational age, coagulopathy and chorioamnionitis (p=0.03). ETCO2 levels were lower in infants who developed ICH or died compared to those that survived without ICH, which remained significant after adjustment for gestational age, Apgar score at 10 min, chorioamnionitis and coagulopathy (p=0.004). SpO2 at approximately 5 min was lower in the infants who died compared to those who survived which remained significant after adjusting for the 5-min Apgar score and chorioamnionitis (p=0.021). CONCLUSIONS ETCO2 and SpO2 levels during early resuscitation in the delivery suite were associated with adverse outcomes.
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Affiliation(s)
- Shannon Gunawardana
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Fahad M S Arattu Thodika
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Vadivelam Murthy
- Neonatal Intensive Care Centre, Barts Health NHS Trust, London, UK
| | - Prashanth Bhat
- Neonatal Intensive Care Centre, Brighton and Sussex University Hospital, Sussex, UK
| | - Emma E Williams
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Theodore Dassios
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Neonatal Intensive Care Centre, King's College Hospital NHS Foundation Trust, London, UK
| | - Anthony D Milner
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Anne Greenough
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
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Nerdrum Aagaard E, Solevåg AL, Saugstad OD. Significance of Neonatal Heart Rate in the Delivery Room-A Review. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1551. [PMID: 37761512 PMCID: PMC10528538 DOI: 10.3390/children10091551] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Heart rate (HR) is considered the main vital sign in newborns during perinatal transition, with a threshold of 100 beats per minute (bpm), below which, intervention is recommended. However, recent changes in delivery room management, including delayed cord clamping, are likely to have influenced normal HR transition. OBJECTIVE To summarize the updated knowledge about the factors, including measurement methods, that influence HR in newborn infants immediately after birth. Additionally, this paper provides an overview of delivery room HR as a prognostic indicator in different subgroups of newborns. METHODS We searched PubMed, EMBASE, and Google Scholar with the terms infant, heart rate, delivery room, resuscitation, pulse oximetry, and electrocardiogram. RESULTS Seven studies that described HR values in newborn infants immediately after birth were included. Pulse oximetry-derived HR percentiles after immediate cord clamping may not be applicable to the current practice of delayed cord clamping and the increasing use of delivery room electrocardiograms. Mask ventilation may adversely affect HR, particularly in premature and non-asphyxiated infants. Prolonged bradycardia is a negative prognostic factor, especially if combined with hypoxemia in infants <32 weeks of gestation. CONCLUSIONS HR assessment in the delivery room remains important. However, the cardiopulmonary transition is affected by delayed cord clamping, gestational age, and underlying conditions.
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Affiliation(s)
- Ellisiv Nerdrum Aagaard
- Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, 0424 Oslo, Norway; (E.N.A.); (A.L.S.)
| | - Anne Lee Solevåg
- Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, 0424 Oslo, Norway; (E.N.A.); (A.L.S.)
| | - Ola Didrik Saugstad
- Department of Pediatric Research, University of Oslo, 0424 Oslo, Norway
- Department of Pediatrics, Robert H Lurie Medical Research Center, Northwestern University, Chicago, IL 60611, USA
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Edwards H, Dorner RA, Katheria AC. Optimizing transition: Providing oxygen during intact cord resuscitation. Semin Perinatol 2023; 47:151787. [PMID: 37380527 PMCID: PMC10529853 DOI: 10.1016/j.semperi.2023.151787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Delayed clamping and cutting of the umbilical cord at birth is standard practice for management for all newborns. Preterm infants may additionally benefit from a combination of ventilation and oxygen provision during intact cord resuscitation. This review highlights both the potential benefits of such a combined approach and the need for further rigorous studies, including randomized controlled trials, of delivery room management in this population.
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Affiliation(s)
- Hannah Edwards
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, CA, United States
| | - Rebecca A Dorner
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, CA, United States
| | - Anup C Katheria
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women & Newborns, San Diego, CA, United States.
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Wolfsberger CH, Pichler-Stachl E, Höller N, Mileder LP, Schwaberger B, Avian A, Urlesberger B, Pichler G. Cerebral oxygenation immediately after birth and long-term outcome in preterm neonates-a retrospective analysis. BMC Pediatr 2023; 23:145. [PMID: 36997902 PMCID: PMC10061688 DOI: 10.1186/s12887-023-03960-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/20/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND Prematurity is associated with increased risk for morbidity and mortality. Aim of this study was to evaluate whether cerebral oxygenation during fetal-to-neonatal transition period was associated with long-term outcome in very preterm neonates. METHODS Preterm neonates ≤ 32 weeks of gestation and/or ≤ 1500 g with measurements of cerebral regional oxygen saturation (crSO2) and cerebral fractional tissue oxygen extraction (cFTOE) within the first 15 min after birth were analysed retrospectively. Arterial oxygen saturation (SpO2) and heart rate (HR) were measured with pulse oximetry. Long-term outcome was assessed at two years using "Bayley Scales of Infant Development" (BSID-II/III). Included preterm neonates were stratified into two groups: adverse outcome group (BSID-III ≤ 70 or testing not possible due to severe cognitive impairment or mortality) or favorable outcome group (BSID-III > 70). As the association between gestational age and long-term outcome is well known, correction for gestational age might disguise the potential association between crSO2 and neurodevelopmental impairment. Therefore, due to an explorative approach the two groups were compared without correction for gestational age. RESULTS Forty-two preterm neonates were included: adverse outcome group n = 13; favorable outcome group n = 29. Median(IQR) gestational age and birth weight were 24.8 weeks (24.2-29.8) and 760 g (670-1054) in adverse outcome group and 30.6 weeks (28.1-32.0) (p = 0.009*) and 1250 g (972-1390) (p = 0.001*) in the favorable outcome group, respectively. crSO2 was lower (significant in 10 out of 14 min) and cFTOE higher in adverse outcome group. There were no difference in SpO2, HR and fraction of inspired oxygen (FiO2), except for FiO2 in minute 11, with higher FiO2 in the adverse outcome group. CONCLUSION Preterm neonates with adverse outcome had beside lower gestational age also a lower crSO2 during immediate fetal-to-neonatal transition when compared to preterm neonates with age appropriate outcome. Lower gestational age in the adverse outcome group would suggest beside lower crSO2 also lower SpO2 and HR in this group, which were however similar in both groups.
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Affiliation(s)
- Christina H Wolfsberger
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Neonatal Micro- and Macrocirculation, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Elisabeth Pichler-Stachl
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Nina Höller
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Neonatal Micro- and Macrocirculation, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Lukas P Mileder
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Neonatal Micro- and Macrocirculation, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Bernhard Schwaberger
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Neonatal Micro- and Macrocirculation, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Alexander Avian
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Berndt Urlesberger
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Neonatal Micro- and Macrocirculation, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Gerhard Pichler
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria.
- Research Unit for Neonatal Micro- and Macrocirculation, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria.
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Respiratory Management of the Preterm Infant: Supporting Evidence-Based Practice at the Bedside. CHILDREN 2023; 10:children10030535. [PMID: 36980093 PMCID: PMC10047523 DOI: 10.3390/children10030535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/10/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Extremely preterm infants frequently require some form of respiratory assistance to facilitate the cardiopulmonary transition that occurs in the first hours of life. Current resuscitation guidelines identify as a primary determinant of overall newborn survival the establishment, immediately after birth, of adequate lung inflation and ventilation to ensure an adequate functional residual capacity. Any respiratory support provided, however, is an important contributing factor to the development of bronchopulmonary dysplasia. The risks correlated to invasive ventilatory techniques increase inversely with gestational age. Preterm infants are born at an early stage of lung development and are more susceptible to lung injury deriving from mechanical ventilation. Any approach aiming to reduce the global burden of preterm lung disease must implement lung-protective ventilation strategies that begin from the newborn’s first breaths in the delivery room. Neonatologists today must be able to manage both invasive and noninvasive forms of respiratory assistance to treat a spectrum of lung diseases ranging from acute to chronic conditions. We searched PubMed for articles on preterm infant respiratory assistance. Our narrative review provides an evidence-based overview on the respiratory management of preterm infants, especially in the acute phase of neonatal respiratory distress syndrome, starting from the delivery room and continuing in the neonatal intensive care unit, including a section regarding exogenous surfactant therapy.
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17
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Escrig-Fernández R, Zeballos-Sarrato G, Gormaz-Moreno M, Avila-Alvarez A, Toledo-Parreño JD, Vento M. The Respiratory Management of the Extreme Preterm in the Delivery Room. CHILDREN (BASEL, SWITZERLAND) 2023; 10:children10020351. [PMID: 36832480 PMCID: PMC9955623 DOI: 10.3390/children10020351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023]
Abstract
The fetal-to-neonatal transition poses an extraordinary challenge for extremely low birth weight (ELBW) infants, and postnatal stabilization in the delivery room (DR) remains challenging. The initiation of air respiration and the establishment of a functional residual capacity are essential and often require ventilatory support and oxygen supplementation. In recent years, there has been a tendency towards the soft-landing strategy and, subsequently, non-invasive positive pressure ventilation has been generally recommended by international guidelines as the first option for stabilizing ELBW in the delivery room. On the other hand, supplementation with oxygen is another cornerstone of the postnatal stabilization of ELBW infants. To date, the conundrum concerning the optimal initial inspired fraction of oxygen, target saturations in the first golden minutes, and oxygen titration to achieve desired stability saturation and heart rate values has not yet been solved. Moreover, the retardation of cord clamping together with the initiation of ventilation with the patent cord (physiologic-based cord clamping) have added additional complexity to this puzzle. In the present review, we critically address these relevant topics related to fetal-to-neonatal transitional respiratory physiology, ventilatory stabilization, and oxygenation of ELBW infants in the delivery room based on current evidence and the most recent guidelines for newborn stabilization.
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Affiliation(s)
- Raquel Escrig-Fernández
- Department of Neonatology, Hospital Universitari i Politècnic La Fe, 106 Fernando Abril Martorell Avenue, 46026 Valencia, Spain
- Correspondence:
| | | | - María Gormaz-Moreno
- Department of Neonatology, Hospital Universitari i Politècnic La Fe, 106 Fernando Abril Martorell Avenue, 46026 Valencia, Spain
| | - Alejandro Avila-Alvarez
- Division of Neonatology, Pediatric Department, Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, 15006 A Coruña, Spain
| | - Juan Diego Toledo-Parreño
- Department of Neonatology, Hospital Universitari i Politècnic La Fe, 106 Fernando Abril Martorell Avenue, 46026 Valencia, Spain
| | - Máximo Vento
- Department of Neonatology, Hospital Universitari i Politècnic La Fe, 106 Fernando Abril Martorell Avenue, 46026 Valencia, Spain
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18
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Pichler G, Goeral K, Hammerl M, Perme T, Dempsey EM, Springer L, Lista G, Szczapa T, Fuchs H, Karpinski L, Bua J, Avian A, Law B, Urlesberger B, Buchmayer J, Kiechl-Kohlendorfer U, Kornhauser-Cerar L, Schwarz CE, Gründler K, Stucchi I, Schwaberger B, Klebermass-Schrehof K, Schmölzer GM. Cerebral regional tissue Oxygen Saturation to Guide Oxygen Delivery in preterm neonates during immediate transition after birth (COSGOD III): multicentre randomised phase 3 clinical trial. BMJ 2023; 380:e072313. [PMID: 36693654 PMCID: PMC9871806 DOI: 10.1136/bmj-2022-072313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To investigate whether monitoring of cerebral tissue oxygen saturation using near infrared spectroscopy in addition to routine monitoring combined with defined treatment guidelines during immediate transition and resuscitation increases survival without cerebral injury of premature infants compared with standard care alone. DESIGN Multicentre, multinational, randomised controlled phase 3 trial. SETTING 11 tertiary neonatal intensive care units in six countries in Europe and in Canada. PARTICIPANTS 1121 pregnant women (<32 weeks' gestation) were screened prenatally. The primary outcome was analysed in 607 of 655 randomised preterm neonates: 304 neonates in the near infrared spectroscopy group and 303 in the control group. INTERVENTION Preterm neonates were randomly assigned to either standard care (control group) or standard care plus monitoring of cerebral oxygen saturation with a dedicated treatment guideline (near infrared spectroscopy group) during immediate transition (first 15 minutes after birth) and resuscitation. MAIN OUTCOME MEASURE The primary outcome, assessed using all cause mortality and serial cerebral ultrasonography, was a composite of survival without cerebral injury. Cerebral injury was defined as any intraventricular haemorrhage or cystic periventricular leukomalacia, or both, at term equivalent age or before discharge. RESULTS Cerebral tissue oxygen saturation was similar in both groups. 252 (82.9%) out of 304 neonates (median gestational age 28.9 (interquartile range 26.9-30.6) weeks) in the near infrared spectroscopy group survived without cerebral injury compared with 238 (78.5%) out of 303 neonates (28.6 (26.6-30.6) weeks) in the control group (relative risk 1.06, 95% confidence interval 0.98 to 1.14). 28 neonates died (near infrared spectroscopy group 12 (4.0%) v control group 16 (5.3%): relative risk 0.75 (0.33 to 1.70). CONCLUSION Monitoring of cerebral tissue oxygen saturation in combination with dedicated interventions in preterm neonates (<32 weeks' gestation) during immediate transition and resuscitation after birth did not result in substantially higher survival without cerebral injury compared with standard care alone. Survival without cerebral injury increased by 4.3% but was not statistically significant. TRIAL REGISTRATION ClinicalTrials.gov NCT03166722.
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Affiliation(s)
- Gerhard Pichler
- Research Unit for Microcirculation and Macrocirculation of the Newborn, Medical University of Graz, Graz, Austria
- Research Unit for Cerebral Development and Oximetry Research, Medical University of Graz, Graz, Austria
- Division of Neonatology, Medical University of Graz, 8036 Graz, Austria
| | - Katharina Goeral
- Comprehensive Center for Pediatrics, Department of Pediatrics and Adolescent Medicine, Division of Neonatology, Intensive Care and Neuropediatrics, Medical University of Vienna, Vienna, Austria
| | - Marlene Hammerl
- Department of Pediatrics II, Neonatology, Medical University of Innsbruck, Innsbruck, Austria
| | - Tina Perme
- NICU, Department for Perinatology, Division of Gynaecology and Obstetrics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Eugene M Dempsey
- INFANT Research Centre, University College Cork, Cork University Maternity Hospital, Cork, Ireland
| | - Laila Springer
- Department of Neonatology, University Children's Hospital of Tübingen, Tübingen, Germany
| | - Gianluca Lista
- Neonatologia e Terapia Intensiva Neonatale (TIN) Ospedale dei Bambini "V Buzzi," Milano, Italia
| | - Tomasz Szczapa
- II Department of Neonatology, Neonatal Biophysical Monitoring and Cardiopulmonary Therapies Research Unit, Chair of Neonatology, Poznan University of Medical Sciences, Poznan, Poland
| | - Hans Fuchs
- Division of Neonatology and Pediatric Intensive Care Medicine, Center for Pediatrics and Adolescent Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lukasz Karpinski
- II Department of Neonatology, Neonatal Biophysical Monitoring and Cardiopulmonary Therapies Research Unit, Chair of Neonatology, Poznan University of Medical Sciences, Poznan, Poland
| | - Jenny Bua
- Neonatal Intensive Care Unit, Institute for Maternal and Child Health, "IRCCS Burlo Garofolo," Trieste, Italy
| | - Alexander Avian
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Brenda Law
- Centre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB, Canada
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Berndt Urlesberger
- Research Unit for Microcirculation and Macrocirculation of the Newborn, Medical University of Graz, Graz, Austria
- Research Unit for Cerebral Development and Oximetry Research, Medical University of Graz, Graz, Austria
- Division of Neonatology, Medical University of Graz, 8036 Graz, Austria
| | - Julia Buchmayer
- Comprehensive Center for Pediatrics, Department of Pediatrics and Adolescent Medicine, Division of Neonatology, Intensive Care and Neuropediatrics, Medical University of Vienna, Vienna, Austria
| | | | - Lilijana Kornhauser-Cerar
- NICU, Department for Perinatology, Division of Gynaecology and Obstetrics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Christoph E Schwarz
- INFANT Research Centre, University College Cork, Cork University Maternity Hospital, Cork, Ireland
| | - Kerstin Gründler
- Department of Neonatology, University Children's Hospital of Tübingen, Tübingen, Germany
| | - Ilaria Stucchi
- Neonatologia e Terapia Intensiva Neonatale (TIN) Ospedale dei Bambini "V Buzzi," Milano, Italia
| | - Bernhard Schwaberger
- Research Unit for Microcirculation and Macrocirculation of the Newborn, Medical University of Graz, Graz, Austria
- Research Unit for Cerebral Development and Oximetry Research, Medical University of Graz, Graz, Austria
- Division of Neonatology, Medical University of Graz, 8036 Graz, Austria
| | - Katrin Klebermass-Schrehof
- Comprehensive Center for Pediatrics, Department of Pediatrics and Adolescent Medicine, Division of Neonatology, Intensive Care and Neuropediatrics, Medical University of Vienna, Vienna, Austria
| | - Georg M Schmölzer
- Centre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB, Canada
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
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19
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Lung Aeration During Deferred Cord Clamping-No Additional Benefits in Infants Born Preterm? J Pediatr 2022; 255:11-15.e6. [PMID: 36463936 DOI: 10.1016/j.jpeds.2022.11.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
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Sotiropoulos JX, Vento M, Saugstad OD, Oei JL. The quest for optimum oxygenation during newborn delivery room resuscitation: Is it the baby or is it us? Semin Perinatol 2022; 46:151622. [PMID: 35725654 DOI: 10.1016/j.semperi.2022.151622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Achieving "normal oxygenation" in sick newborn infants requiring resuscitation is one of the most difficult and incompletely informed practices in neonatal care. Suboptimal oxygenation, whether too little or too much, has profound repercussions, including death. In the last two decades, clinicians have lost equipoise for the use of higher oxygen strategies due to concerns of hyperoxia but emerging evidence suggests that lower oxygen strategies may also be as detrimental, especially in infants with pulmonary pathologies such as those born at the cusp of viability. Practice at the coalface using rapidly evolving recommendations has also uncovered continuing complexities in the quest to achieve optimum oxygenation during the first critical minutes of life. There are adjustable factors, such as the practical impediments to acquiring knowledge, equipment and expertise as well as unadjustable factors, such as inherent infant pathology, that necessitates agile clinical manipulation to "first do no harm". This review will address the deficiencies in knowledge that currently impede our quest to determine the best and safest means to deliver oxygen to sick infants during the first critical minutes of life and suggest practical solutions for current practice while awaiting definitive evidence from large scale, well defined, randomized controlled studies.
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Affiliation(s)
- James Xavier Sotiropoulos
- Faculty of Medicine, School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia; Department of Newborn Care, The Royal Hospital for Women, Randwick, NSW, Australia
| | - Maximo Vento
- University and Polytechnic Hospital La Fe, Valencia, Spain; Health Research Institute La Fe, Valencia, Spain
| | - Ola D Saugstad
- Northwestern University, Chicago, USA; University of Oslo, Oslo, Norway
| | - Ju Lee Oei
- Faculty of Medicine, School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia; Department of Newborn Care, The Royal Hospital for Women, Randwick, NSW, Australia.
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21
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Physiology of neonatal resuscitation: Giant strides with small breaths. Semin Perinatol 2022; 46:151620. [PMID: 35715254 DOI: 10.1016/j.semperi.2022.151620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The transition of a fetus to a newborn involves a sequence of well-orchestrated physiological events. Most neonates go through this transition without assistance but 5-10% may require varying degrees of resuscitative interventions at birth. The most crucial event during this transition is lung inflation with optimal concentrations of oxygen. Rarely, extensive resuscitation including chest compressions and medication may be required. In the past few decades, significant strides have been made in our understanding of the cardiorespiratory transition at birth from a fetus to a newborn and the subsequent resuscitation. This article reviews the physiology behind neonatal transition at birth and various interventions during neonatal resuscitation.
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22
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Technology in the delivery room supporting the neonatal healthcare provider's task. Semin Fetal Neonatal Med 2022; 27:101333. [PMID: 35400603 DOI: 10.1016/j.siny.2022.101333] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Very preterm infants are a unique and highly vulnerable group of patients that have a narrow physiological margin within which interventions are safe and effective. The increased understanding of the foetal to neonatal transition marks the intricacy of the rapid and major physiological changes that take place, making delivery room stabilisation and resuscitation an increasingly complex and sophisticated activity for caregivers to perform. While modern, automated technologies are progressively implemented in the neonatal intensive care unit (NICU) to enhance the caregivers in providing the right care for these patients, the technology in the delivery room still lags far behind. Diligent translation of well-known and promising technological solutions from the NICU to the delivery room will allow for better support of the caregivers in performing their tasks. In this review we will discuss the current technology used for stabilisation of preterm infants in the delivery room and how this could be optimised in order to further improve care and outcomes of preterm infants in the near future.
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23
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Knol R, Brouwer E, van den Akker T, DeKoninck PLJ, Lopriore E, Onland W, Vermeulen MJ, van den Akker-van Marle ME, van Bodegom-Vos L, de Boode WP, van Kaam AH, Reiss IKM, Polglase GR, Hutten GJ, Prins SA, Mulder EEM, Hulzebos CV, van Sambeeck SJ, van der Putten ME, Zonnenberg IA, Hooper SB, Te Pas AB. Physiological-based cord clamping in very preterm infants: the Aeration, Breathing, Clamping 3 (ABC3) trial-study protocol for a multicentre randomised controlled trial. Trials 2022; 23:838. [PMID: 36183143 PMCID: PMC9526936 DOI: 10.1186/s13063-022-06789-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND International guidelines recommend delayed umbilical cord clamping (DCC) up to 1 min in preterm infants, unless the condition of the infant requires immediate resuscitation. However, clamping the cord prior to lung aeration may severely limit circulatory adaptation resulting in a reduction in cardiac output and hypoxia. Delaying cord clamping until lung aeration and ventilation have been established (physiological-based cord clamping, PBCC) allows for an adequately established pulmonary circulation and results in a more stable circulatory transition. The decline in cardiac output following time-based delayed cord clamping (TBCC) may thus be avoided. We hypothesise that PBCC, compared to TBCC, results in a more stable transition in very preterm infants, leading to improved clinical outcomes. The primary objective is to compare the effect of PBCC on intact survival with TBCC. METHODS The Aeriation, Breathing, Clamping 3 (ABC3) trial is a multicentre randomised controlled clinical trial. In the interventional PBCC group, the umbilical cord is clamped after the infant is stabilised, defined as reaching heart rate > 100 bpm and SpO2 > 85% while using supplemental oxygen < 40%. In the control TBCC group, cord clamping is time based at 30-60 s. The primary outcome is survival without major cerebral and/or intestinal injury. Preterm infants born before 30 weeks of gestation are included after prenatal parental informed consent. The required sample size is 660 infants. DISCUSSION The findings of this trial will provide evidence for future clinical guidelines on optimal cord clamping management in very preterm infants at birth. TRIAL REGISTRATION ClinicalTrials.gov NCT03808051. First registered on January 17, 2019.
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Affiliation(s)
- Ronny Knol
- Division of Neonatology, Department of Paediatrics, Sophia Children's Hospital, Erasmus MC University Medical Center, P.O. Box 2060, 3000 CB, Rotterdam, The Netherlands. .,Division of Neonatology, Department of Paediatrics, Leiden University Medical Center, Leiden, The Netherlands.
| | - Emma Brouwer
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Thomas van den Akker
- Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands.,Athena Institute, VU University, Amsterdam, The Netherlands
| | - Philip L J DeKoninck
- Department of Obstetrics and Gynaecology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,The Ritchie Centre, Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
| | - Enrico Lopriore
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Wes Onland
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Marijn J Vermeulen
- Division of Neonatology, Department of Paediatrics, Sophia Children's Hospital, Erasmus MC University Medical Center, P.O. Box 2060, 3000 CB, Rotterdam, The Netherlands
| | | | - Leti van Bodegom-Vos
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Willem P de Boode
- Division of Neonatology, Department of Paediatrics, Radboud University Medical Center, Radboud Institute for Health Sciences, Amalia Children's Hospital, Nijmegen, The Netherlands
| | - Anton H van Kaam
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Irwin K M Reiss
- Division of Neonatology, Department of Paediatrics, Sophia Children's Hospital, Erasmus MC University Medical Center, P.O. Box 2060, 3000 CB, Rotterdam, The Netherlands
| | - Graeme R Polglase
- The Ritchie Centre, Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
| | - G Jeroen Hutten
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Sandra A Prins
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Estelle E M Mulder
- Department of Neonatology, Isala Women and Children's Hospital, Zwolle, The Netherlands
| | - Christian V Hulzebos
- Department of Paediatrics, Beatrix Children's Hospital, University Medical Center Groningen, Groningen, The Netherlands
| | - Sam J van Sambeeck
- Department of Paediatrics, Maxima Medical Center, Veldhoven, The Netherlands
| | - Mayke E van der Putten
- Department of Paediatrics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Inge A Zonnenberg
- Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Stuart B Hooper
- The Ritchie Centre, Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
| | - Arjan B Te Pas
- Division of Neonatology, Department of Paediatrics, Leiden University Medical Center, Leiden, The Netherlands
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24
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Ali SK, Jayakar RV, Marshall AP, Gale TJ, Dargaville PA. Preliminary study of automated oxygen titration at birth for preterm infants. Arch Dis Child Fetal Neonatal Ed 2022; 107:539-544. [PMID: 35140115 DOI: 10.1136/archdischild-2021-323486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/30/2021] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To study the feasibility of automated titration of oxygen therapy in the delivery room for preterm infants. DESIGN Prospective non-randomised study of oxygenation in sequential preterm cohorts in which FiO2 was adjusted manually or by an automated control algorithm during the first 10 min of life. SETTING Delivery rooms of a tertiary level hospital. PARTICIPANTS Preterm infants <32 weeks gestation (n=20 per group). INTERVENTION Automated oxygen control using a purpose-built device, with SpO2 readings input to a proportional-integral-derivative algorithm, and FiO2 alterations actuated by a motorised blender. The algorithm was developed via in silico simulation using abstracted oxygenation data from the manual control group. For both groups, the SpO2 target was the 25th-75th centile of the Dawson nomogram. MAIN OUTCOME MEASURES Proportion of time in the SpO2 target range (25th-75th centile, or above if in room air) and other SpO2 ranges; FiO2 adjustment frequency; oxygen exposure. RESULTS Time in the SpO2 target range was similar between groups (manual control: median 60% (IQR 48%-72%); automated control: 70 (60-84)%; p=0.31), whereas time with SpO2 >75th centile when receiving oxygen differed (manual: 17 (7.6-26)%; automated: 10 (4.4-13)%; p=0.048). Algorithm-directed FiO2 adjustments were frequent during automated control, but no manual adjustments were required in any infant once valid SpO2 values were available. Oxygen exposure was greater during automated control, but final FiO2 was equivalent. CONCLUSION Automated oxygen titration using a purpose-built algorithm is feasible for delivery room management of preterm infants, and warrants further evaluation.
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Affiliation(s)
- Sanoj Km Ali
- Department of Paediatrics, Royal Hobart Hospital, Hobart, Tasmania, Australia
| | - Rohan V Jayakar
- School of Engineering, University of Tasmania, Hobart, Tasmania, Australia
| | - Andrew P Marshall
- School of Engineering, University of Tasmania, Hobart, Tasmania, Australia
| | - Timothy J Gale
- School of Engineering, University of Tasmania, Hobart, Tasmania, Australia
| | - Peter A Dargaville
- Department of Paediatrics, Royal Hobart Hospital, Hobart, Tasmania, Australia .,Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
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25
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Chandrasekharan P, Gugino S, Koenigsknecht C, Helman J, Nielsen L, Bradley N, Nair J, Sankaran D, Bawa M, Rawat M, Lakshminrusimha S. Placental transfusion during neonatal resuscitation in an asphyxiated preterm model. Pediatr Res 2022; 92:678-684. [PMID: 35490196 PMCID: PMC9588497 DOI: 10.1038/s41390-022-02086-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/24/2022] [Accepted: 04/07/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND Neonatal Resuscitation Program does not recommend placental transfusion in depressed preterm neonates. METHODS Our objectives were to study the effect of delayed cord clamping (DCC) with ventilation for 5 min (DCCV, n-5), umbilical cord milking (UCM) without ventilation (n-6), UCM with ventilation (UCMV, n-6), early cord clamping followed by ventilation (ECCV, n-6) on red cell volume (RCV), and hemodynamic changes in asphyxiated preterm lambs. Twenty-three preterm lambs at 127-128 days gestation were randomized to DCCV, UCM, UCMV, and ECCV. We defined asphyxia as heart rate <100/min. RESULTS The UCMV had the highest neonatal RCV as a percentage of fetoplacental volume compared to the other groups (UCMV 85.5 ± 10%, UCM 72 ± 10%, ECCV 65 ± 14%, DCCV 61 ± 10%, p < 0.01). The DCCV led to better ventilation (66 ± 1 mmHg) and higher pulmonary blood flow (75 ± 24 ml/kg/min). The carotid flow was significantly higher in UCM without ventilation. The fluctuations in carotid flow with milking were 25 ± 6% higher from baseline during UCM, compared to 6 ± 3% in UCMV (p < 0.01). CONCLUSIONS Cord milking with ventilation led to higher RCV than other interventions. Ventilation during cord milking reduced fluctuation in carotid flow compared to UCM alone. DCCV led to better ventilation and pulmonary blood flow but did not increase RCV. IMPACT The best practice of placental transfusion in a depressed preterm neonate remains unknown. Ventilation with an intact cord improves gas exchange and hemodynamics in an asphyxiated preterm model. Cord milking without ventilation led to lower red cell volume but higher carotid blood flow fluctuations compared to milking with ventilation. Our data can be translated to bedside and could impact preterm resuscitation.
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Affiliation(s)
| | - Sylvia Gugino
- Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | | | - Justin Helman
- Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | - Lori Nielsen
- Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | - Nicole Bradley
- Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | - Jayasree Nair
- Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | | | - Mausma Bawa
- Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
| | - Munmun Rawat
- Department of Pediatrics, University at Buffalo, Buffalo, NY, USA
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26
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Oei JL, Kapadia V, Rabi Y, Saugstad OD, Rook D, Vermeulen MJ, Boronat N, Thamrin V, Tarnow-Mordi W, Smyth J, Wright IM, Lui K, van Goudoever JB, Gebski V, Vento M. Neurodevelopmental outcomes of preterm infants after randomisation to initial resuscitation with lower (FiO 2 <0.3) or higher (FiO 2 >0.6) initial oxygen levels. An individual patient meta-analysis. Arch Dis Child Fetal Neonatal Ed 2022; 107:386-392. [PMID: 34725105 DOI: 10.1136/archdischild-2021-321565] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 10/04/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To determine the effects of lower (≤0.3) versus higher (≥0.6) initial fractional inspired oxygen (FiO2) for resuscitation on death and/or neurodevelopmental impairment (NDI) in infants <32 weeks' gestation. DESIGN Meta-analysis of individual patient data from three randomised controlled trials. SETTING Neonatal intensive care units. PATIENTS 543 children <32 weeks' gestation. INTERVENTION Randomisation at birth to resuscitation with lower (≤0.3) or higher (≥0.6) initial FiO2. OUTCOME MEASURES Primary: death and/or NDI at 2 years of age.Secondary: post-hoc non-randomised observational analysis of death/NDI according to 5-minute oxygen saturation (SpO2) below or at/above 80%. RESULTS By 2 years of age, 46 of 543 (10%) children had died. Of the 497 survivors, 84 (17%) were lost to follow-up. Bayley Scale of Infant Development (third edition) assessments were conducted on 377 children. Initial FiO2 was not associated with difference in death and/or disability (difference (95% CI) -0.2%, -7% to 7%, p=0.96) or with cognitive scores <85 (2%, -5% to 9%, p=0.5). Five-minute SpO2 >80% was associated with decreased disability/death (14%, 7% to 21%) and cognitive scores >85 (10%, 3% to 18%, p=0.01). Multinomial regression analysis noted decreased death with 5-minute SpO2 ≥80% (odds (95% CI) 09.62, 0.98 to 0.96) and gestation (0.52, 0.41 to 0.65), relative to children without death or NDI. CONCLUSION Initial FiO2 was not associated with difference in risk of disability/death at 2 years in infants <32 weeks' gestation but CIs were wide. Substantial benefit or harm cannot be excluded. Larger randomised studies accounting for patient differences, for example, gestation and gender are urgently needed.
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Affiliation(s)
- Ju Lee Oei
- Newborn Intensive Care Unit, The Royal Hospital for Women, Randwick, New South Wales, Australia .,School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Vishal Kapadia
- Department of Pediatrics, Howard Hughes Medical Institute-University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
| | - Yacov Rabi
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Ola Didrik Saugstad
- Department of Pediatric Research, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway
| | - Denise Rook
- Department of Pediatrics, Erasmus MC, Rotterdam, The Netherlands
| | - Marijn J Vermeulen
- Division of Neonatology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Nuria Boronat
- La Fe Health Research Institute, La Fe University and Polytechnic Hospital, Valencia, Spain.,Division of Neonatology, La Fe University and Polytechnic Hospital, Valencia, Spain
| | - Valerie Thamrin
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - William Tarnow-Mordi
- NHMRC Clinical Trials Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - John Smyth
- Newborn Intensive Care Unit, The Royal Hospital for Women, Randwick, New South Wales, Australia.,School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Ian M Wright
- College of Medicine and Dentistry, James Cook University, Cairns, Queensland, Australia
| | - Kei Lui
- Newborn Intensive Care Unit, The Royal Hospital for Women, Randwick, New South Wales, Australia.,School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Johannes B van Goudoever
- Department of Pediatrics, Emma Children's Hospital AMC, Amsterdam, The Netherlands.,Department of Pediatrics, Amsterdam UMC-VUMC location, Amsterdam, The Netherlands
| | - Val Gebski
- NHMRC Clinical Trials Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Maximo Vento
- La Fe Health Research Institute, La Fe University and Polytechnic Hospital, Valencia, Spain.,Division of Neonatology, La Fe University and Polytechnic Hospital, Valencia, Spain
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27
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Shah PS, Norman M, Rusconi F, Kusuda S, Reichman B, Battin M, Bassler D, Modi N, Hakansson S, Yang J, Lee SK, Helenius K, Vento M, Lehtonen L, Adams M, Isayama T, Lui K, Gagliardi L. Five-minute Apgar score and outcomes in neonates of 24-28 weeks' gestation. Arch Dis Child Fetal Neonatal Ed 2022; 107:437-446. [PMID: 34782368 DOI: 10.1136/archdischild-2021-322230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 10/26/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To assess associations between 5 min Apgar score and mortality and severe neurological injury (SNI) and to report test characteristics in preterm neonates. DESIGN, SETTING AND PATIENTS Retrospective cohort study of neonates 240 to 286 weeks' gestation born between 2007 and 2016 and admitted to neonatal units in 11 high-income countries. EXPOSURE 5 min Apgar score. MAIN OUTCOME MEASURES In-hospital mortality and SNI defined as grade 3 or 4 periventricular/intraventricular haemorrhage or periventricular leukomalacia. Outcome rates were calculated for each Apgar score and compared after adjustment. The diagnostic characteristics and ORs for each value from 0 versus 1-10 to 0-9 versus 10, with 1-point increments were calculated. RESULTS Among 92 412 included neonates, as 5 min Apgar score increased from 0 to 10, mortality decreased from 60% to 8%. However, no clear increasing or decreasing pattern was identified for SNI. There was an increase in sensitivity and decrease in specificity for both mortality and SNI associated with increasing scores. The Apgar score alone had an area under the curve of 0.64 for predicting mortality, which increased to 0.73 with the addition of gestational age. CONCLUSIONS In neonates of 24-28 weeks' gestation admitted to neonatal units, higher 5 min Apgar score was associated with lower mortality in a graded manner, while the association with SNI remained relatively constant at all scores. Among survivors, low Apgar scores did not predict SNI.
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Affiliation(s)
- Prakesh S Shah
- Department of Paediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada .,Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Mikael Norman
- Department of Neonatal Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Franca Rusconi
- Unit of Epidemiology, Anna Meyer Children's University Hospital and Regional Health Agency, Florence, Italy
| | - 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 Center, Tel Hashomer, Israel
| | - Malcolm Battin
- Department of Neonatology, Auckland District Health Board, Auckland, New Zealand
| | - Dirk Bassler
- Swiss Neonatal Network, Department of Neonatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Neena Modi
- UK Neonatal Collaborative, Neonatal Data Analysis Unit, Section of Neonatal Medicine, Department of Medicine, Imperial College London, London, UK
| | - Stellan Hakansson
- Department of Clinical Science/Pediatrics, Umeå University, Umeå, Sweden
| | - Jie Yang
- Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Shoo K Lee
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.,Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Kjell Helenius
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland.,Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Maximo Vento
- Division of Neonatology, Health Research Institute La Fe, Valencia, Spain
| | - Liisa Lehtonen
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland.,Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Mark Adams
- Swiss Neonatal Network, Department of Neonatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Tetsuya Isayama
- Division of Neonatology, Center for Maternal-Fetal Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Kei Lui
- Department of Newborn Care, Royal Hospital for Women and School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, Sydney, Australia
| | - Luigi Gagliardi
- Division of Neonatology and Pediatrics, Ospedale Versilia, Viareggio, Azienda USL Toscana Nord Ovest, Italy
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28
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Abstract
Advances in perinatal care have seen substantial improvements in survival without disability for extremely preterm infants. Protecting the developing brain and reducing neurodevelopmental sequelae of extremely preterm birth are strategic priorities for both research and clinical care. A number of evidence-based interventions exist for neuroprotection in micropreemies, inclusive of prevention of preterm birth and multiple births with implantation of only one embryo during in vitro fertilisation, as well as antenatal care to optimize fetal wellbeing, strategies for supporting neonatal transition, and neuroprotective developmental care. Avoidance of complications that trigger ischemia and inflammation is vital for minimizing brain dysmaturation and injury, particularly of the white matter. Neurodevelopmental surveillance, early diagnosis of cerebral palsy and early intervention are essential for optimizing long-term outcomes and quality of life. Research priorities include further evaluation of putative neuroprotective agents, and investigation of common neonatal interventions in trials adequately powered to assess neurodevelopmental outcome.
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29
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Baik-Schneditz N, Schwaberger B, Bresesti I, Fuchs H, Lara I, Nakstad B, Lista G, Vento M, Binder-Heschl C, Pichler G, Urlesberger B. Fetal to neonatal transition: what additional information can be provided by cerebral near infrared spectroscopy? Pediatr Res 2022:10.1038/s41390-022-02081-0. [PMID: 35597824 DOI: 10.1038/s41390-022-02081-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 04/04/2022] [Accepted: 04/12/2022] [Indexed: 11/09/2022]
Abstract
This narrative review focuses on the clinical use and relevance of cerebral oxygenation measured by NIRS during fetal to neonatal transition. Cerebral NIRS(cNIRS) offers the possibility of non-invasive, continuous, and objective brain monitoring in addition to the recommended routine monitoring. During the last decade, with growing interest in early and sensitive brain monitoring, many research groups worldwide have been working with cNIRS and verified the feasibility of cNIRS monitoring immediately after birth. Cerebral hypoxia during fetal to neonatal transition, defined as cerebral oxygenation values below10th percentile, seems to have an impact on neurological outcomes. Feasibility to guide clinical support using cNIRS to reduce the burden of cerebral hypoxia has been shown. It is well known that in some cases cerebral oxygenation follows different patterns than SpO2. Cerebral oxygenation does not only depend on systemic oxygenation, hemoglobin content and cerebral blood flow, but also on cardiocirculatory condition, ventilation, and metabolic parameters. Hence, measurement of cerebral oxygenation may uncover problems not detectable by standard monitoring. Therefore, applying NIRS can provide caregivers a more complete clinical overview, especially in critically ill neonates. In this review, we aim to describe the additional information which can be provided by cNIRS during fetal to neonatal transition. IMPACT: This narrative review focuses on the clinical use and relevance of cerebral oxygenation measured by near infrared spectroscopy (NIRS) during fetal to neonatal transition. During the last decade, interest on brain monitoring is growing continuously as the measurement of cerebral oxygenation may uncover problems which are not detectable by routine monitoring. Therefore, it will be crucial to have additional information to get a complete overview, especially in critically ill neonates in need of medical and respiratory support. In this review, we offer additional information which can be provided by cerebral NIRS during fetal to neonatal transition.
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Affiliation(s)
- Nariae Baik-Schneditz
- Division of Neonatology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Cerebral Development and Oximetry, Division of Neonatology, Medical University of Graz, Graz, Austria
| | - Bernhard Schwaberger
- Division of Neonatology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Cerebral Development and Oximetry, Division of Neonatology, Medical University of Graz, Graz, Austria
| | - Ilia Bresesti
- Division of Neonatology, Department of Paediatrics, "F. Del Ponte" Hospital, University of Insubria, Varese, Italy
| | - Hans Fuchs
- Division of Neonatology and Pediatric Intensive Care Medicine, Center for Pediatrics and Adolescent Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Inmaculada Lara
- Division of Neonatology, University and Polytechnic Hospital La Fe, Valencia, Spain
| | - Britt Nakstad
- Division of Pediatric and Adolescent Medicine, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Paediatric and Adolescent Health, University of Botswana, Gaborone, Botswana
| | - Gianluca Lista
- Division of Neonatology, "V.Buzzi" Children's Hospital, ASST-FBF-Sacco, Milan, Italy
| | - Maximo Vento
- Division of Neonatology, University and Polytechnic Hospital La Fe, Valencia, Spain
| | - Corinna Binder-Heschl
- Division of Neonatology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Cerebral Development and Oximetry, Division of Neonatology, Medical University of Graz, Graz, Austria
| | - Gerhard Pichler
- Division of Neonatology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
- Research Unit for Cerebral Development and Oximetry, Division of Neonatology, Medical University of Graz, Graz, Austria
| | - Berndt Urlesberger
- Division of Neonatology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria.
- Research Unit for Cerebral Development and Oximetry, Division of Neonatology, Medical University of Graz, Graz, Austria.
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30
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Abiramalatha T, Ramaswamy VV, Bandyopadhyay T, Somanath SH, Shaik NB, Pullattayil AK, Weiner GM. Interventions to Prevent Bronchopulmonary Dysplasia in Preterm Neonates: An Umbrella Review of Systematic Reviews and Meta-analyses. JAMA Pediatr 2022; 176:502-516. [PMID: 35226067 DOI: 10.1001/jamapediatrics.2021.6619] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
IMPORTANCE Bronchopulmonary dysplasia (BPD) has multifactorial etiology and long-term adverse consequences. An umbrella review enables the evaluation of multiple proposed interventions for the prevention of BPD. OBJECTIVE To summarize and assess the certainty of evidence of interventions proposed to decrease the risk of BPD from published systematic reviews. DATA SOURCES MEDLINE, Cochrane Central Register of Controlled Trials, EMBASE, and Web of Science were searched from inception until November 9, 2020. STUDY SELECTION Meta-analyses of randomized clinical trials comparing interventions in preterm neonates that included BPD as an outcome. DATA EXTRACTION AND SYNTHESIS Data extraction was performed in duplicate. Quality of systematic reviews was evaluated using Assessment of Multiple Systematic Reviews version 2, and certainty of evidence was assessed using Grading of Recommendation, Assessment, Development, and Evaluation. MAIN OUTCOMES AND MEASURES (1) BPD or mortality at 36 weeks' postmenstrual age (PMA) and (2) BPD at 36 weeks' PMA. RESULTS A total of 154 systematic reviews evaluating 251 comparisons were included, of which 110 (71.4%) were high-quality systematic reviews. High certainty of evidence from high-quality systematic reviews indicated that delivery room continuous positive airway pressure compared with intubation with or without routine surfactant (relative risk [RR], 0.80 [95% CI, 0.68-0.94]), early selective surfactant compared with delayed selective surfactant (RR, 0.83 [95% CI, 0.75-0.91]), early inhaled corticosteroids (RR, 0.86 [95% CI, 0.75-0.99]), early systemic hydrocortisone (RR, 0.90 [95% CI, 0.82-0.99]), avoiding endotracheal tube placement with delivery room continuous positive airway pressure and use of less invasive surfactant administration (RR, 0.90 [95% CI, 0.82-0.99]), and volume-targeted compared with pressure-limited ventilation (RR, 0.73 [95% CI, 0.59-0.89]) were associated with decreased risk of BPD or mortality at 36 weeks' PMA. Moderate to high certainty of evidence showed that inhaled nitric oxide, lower saturation targets (85%-89%), and vitamin A supplementation are associated with decreased risk of BPD at 36 weeks' PMA but not the competing outcome of BPD or mortality, indicating they may be associated with increased mortality. CONCLUSIONS AND RELEVANCE A multipronged approach of delivery room continuous positive airway pressure, early selective surfactant administration with less invasive surfactant administration, early hydrocortisone prophylaxis in high-risk neonates, inhaled corticosteroids, and volume-targeted ventilation for preterm neonates requiring invasive ventilation may decrease the combined risk of BPD or mortality at 36 weeks' PMA.
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Affiliation(s)
- Thangaraj Abiramalatha
- Department of Neonatology, Kovai Medical Center and Hospital (KMCH) & KMCH Institute of Health Sciences and Research, Coimbatore, India
| | | | - Tapas Bandyopadhyay
- Department of Neonatology, Dr Ram Manohar Lohia Hospital & Post Graduate Institute of Medical Education and Research, New Delhi, India
| | | | | | | | - Gary M Weiner
- Department of Pediatrics-Neonatology, University of Michigan, Ann Arbor
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Norman M, Nilsson D, Trygg J, Håkansson S. Perinatal risk factors for mortality in very preterm infants-A nationwide, population-based discriminant analysis. Acta Paediatr 2022; 111:1526-1535. [PMID: 35397189 PMCID: PMC9546293 DOI: 10.1111/apa.16356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 02/03/2022] [Accepted: 04/07/2022] [Indexed: 11/29/2022]
Abstract
Aim To assess the strength of associations between interrelated perinatal risk factors and mortality in very preterm infants. Methods Information on all live‐born infants delivered in Sweden at 22–31 weeks of gestational age (GA) from 2011 to 2019 was gathered from the Swedish Neonatal Quality Register, excluding infants with major malformations or not resuscitated because of anticipated poor prognosis. Twenty‐seven perinatal risk factors available at birth were exposures and in‐hospital mortality outcome. Orthogonal partial least squares discriminant analysis was applied to assess proximity between individual risk factors and mortality, and receiver operating characteristic (ROC) curves were used to estimate discriminant ability. Results In total, 638 of 8,396 (7.6%) infants died. Thirteen risk factors discriminated reduced mortality; the most important were higher Apgar scores at 5 and 10 min, GA and birthweight. Restricting the analysis to preterm infants <28 weeks’ GA (n = 2939, 16.9% mortality) added antenatal corticosteroid therapy as significantly associated with lower mortality. The area under the ROC curve (the C‐statistic) using all risk factors was 0.86, as determined after both internal and external validation. Conclusion Apgar scores, gestational age and birthweight show stronger associations with mortality in very preterm infants than several other perinatal risk factors available at birth.
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Affiliation(s)
- Mikael Norman
- Department of Clinical Science, Intervention and Technology Karolinska Institutet Stockholm Sweden
- Department of Neonatal Medicine Karolinska University Hospital Stockholm Sweden
| | - David Nilsson
- Department of Chemistry, Umeå University Umeå Sweden
| | - Johan Trygg
- Department of Chemistry, Umeå University Umeå Sweden
| | - Stellan Håkansson
- Department of Clinical Sciences, Pediatrics Umeå University Umeå Sweden
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Buis ML, Hogeveen M, Turner NM. The new European resuscitation council guidelines on newborn resuscitation and support of the transition of infants at birth: An educational article. Paediatr Anaesth 2022; 32:504-508. [PMID: 35108423 DOI: 10.1111/pan.14406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 01/12/2022] [Accepted: 01/19/2022] [Indexed: 11/29/2022]
Abstract
In this educational article, we summarize the changes in the new European Resuscitation Council guidelines on Newborn Resuscitation and Support of the Transition of Infants at Birth, emphasizing important aspects for the pediatric anesthesiologist including umbilical cord management, airway management, inflation pressure, and oxygen in relation with gestational age and situation. Using a fictitious case to illustrate the main points, we give a summary of the changes and the evidence behind them.
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Affiliation(s)
- Maria L Buis
- Juliana Children's Hospital & Haga Hospital, The Hague, The Netherlands
| | - Marije Hogeveen
- Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nigel M Turner
- Wilhelmina Children's Hospital, University Medical Center Utrecht, The Netherlands
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Avila-Alvarez A, Zozaya C, Pértega-Diaz S, Sanchez-Luna M, Iriondo-Sanz M, Elorza MD, García-Muñoz Rodrigo F. Temporal trends in respiratory care and bronchopulmonary dysplasia in very preterm infants over a 10-year period in Spain. Arch Dis Child Fetal Neonatal Ed 2022; 107:143-149. [PMID: 34321246 DOI: 10.1136/archdischild-2021-322402] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/13/2021] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To evaluate trends in respiratory care practices and bronchopulmonary dysplasia (BPD) among very preterm infants born in Spain between 2010 and 2019. STUDY DESIGN This was a retrospective cohort study of data obtained from a national population-based database (SEN1500 network). Changes in respiratory care and BPD-free survival of infants with gestational age (GA) of 230-316 weeks and <1500 g were assessed over two 5-year periods. Temporal trends were examined by joinpoint and Poisson regression models and expressed as the annual per cent change and adjusted relative risk (RR) for the change per year. RESULTS A total of 17 952 infants were included. In the second period, infants were less frequently intubated in the delivery room and during neonatal intensive care unit stay. This corresponded with an increase in use of non-invasive ventilation techniques. There were no significant differences between the periods in BPD-free survival or survival without moderate-to-severe BPD. After adjusting for covariates, the RR for the change per year was significant for the following variables: never intubated (RR 1.03, 95% CI 1.02 to 1.04); intubation in the delivery room (RR 0.98, 95% CI 0.97 to 0.99); use of nasal intermittent positive pressure ventilation (RR 1.08, 95% CI 1.05 to 1.11); and BPD-free survival (only in the group with the lowest GA; RR 0.98, 95% CI 0.97 to 0.99). CONCLUSION Our findings reveal significant changes in respiratory care practices between 2009 and 2019. Despite an increase in use of non-invasive respiratory strategies, BPD-free survival did not improve and even worsened in the group with the lowest GA (230-256).
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Affiliation(s)
| | - Carlos Zozaya
- Division of Neonatology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sonia Pértega-Diaz
- Research Support Unit, Complexo Hospitalario Universitario A Coruña, A Coruña, Spain
| | - Manuel Sanchez-Luna
- Division of Neonatology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Martin Iriondo-Sanz
- Neonatology Department, Hospital Sant Joan de Déu, BCNatal, Hospital Sant Joan de Déu-Hospital, Barcelona University, Barcelona, Spain
| | | | - Fermín García-Muñoz Rodrigo
- Division of Neonatology, Complejo Hospitalario Universitario Insular Materno-Infantil, Las Palmas de Gran Canaria, Spain
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Zeballos Sarrato G, Ávila-Álvarez A, Escrig Fernández R, Izquierdo Renau M, Ruiz Campillo CW, Gómez Robles C, Iriondo Sanz M. Spanish guide for neonatal stabilization and resuscitation 2021: Analysis, adaptation and consensus on international recommendations. An Pediatr (Barc) 2022; 96:145.e1-145.e9. [PMID: 35216951 DOI: 10.1016/j.anpede.2021.06.011] [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: 05/18/2021] [Accepted: 06/04/2021] [Indexed: 11/18/2022] Open
Abstract
After the publication of the recommendations, agreed by all the scientific societies through the ILCOR, at the end of 2020, the GRN-SENeo began a process of analysis and review of the main changes since the last guidelines, to which a specific consensus positioning on controversial issues, trying to avoid ambiguities and trying to adapt the evidence to our environment. This text summarizes the main conclusions of this work and reflects the positioning of that group.
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Affiliation(s)
| | - Alejandro Ávila-Álvarez
- Unidad de Neonatología, Servicio de Pediatría, Complexo Hospitalario Universitario, A Coruña (CHUAC), Sergas, A Coruña, Spain
| | | | - Montserrat Izquierdo Renau
- Servicio de Neonatología, Sant Joan de Déu, BCNatal, Hospital Sant Joan de Déu-Hospital Clínic, Universidad de Barcelona, Barcelona, Spain
| | | | - Celia Gómez Robles
- Servicio de Neonatología, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Martín Iriondo Sanz
- Servicio de Neonatología, Sant Joan de Déu, BCNatal, Hospital Sant Joan de Déu-Hospital Clínic, Universidad de Barcelona, Barcelona, Spain
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Deng R, Wu Y, Xiao G, Zhong X, Gong H, Chen W, Zhou L, Shen B, Wang Q. With or Without Nasal Continuous Positive Airway Pressure During Delayed Cord Clamping in Premature Infants <32 Weeks: A Randomized Controlled Trial Using an Intention-To-Treat Analysis. Front Pediatr 2022; 10:843372. [PMID: 35433539 PMCID: PMC9008252 DOI: 10.3389/fped.2022.843372] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 02/03/2022] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE To assess whether providing nasal continuous positive airway pressure (nCPAP) during delayed cord clamping is beneficial for preterm infants <32 weeks. STUDY DESIGN A randomized controlled trial was performed from March 2020 to May 2021. Premature infants (<32 weeks of gestational age; n = 160) were allocated to receive at least 60 s of delayed cord clamping with nCPAP (DCC+nCPAP; n = 80) or without nCPAP (DCC only; n = 80). For both groups, after the umbilical cord was clamped, the infants were carried immediately to the resuscitation room to continue receiving standard transition. The primary outcome was the mechanical ventilation (MV) rate within 24 h of life. The measurements related to early respiratory support effect before cord clamping including positive end-expiratory pressure (PEEP) and FiO2 during transition/leaving the delivery room, intubation rate during transition, pulmonary surfactant (PS) administration ≥2 times after birth, extubation failure, and incidence of bronchopulmonary dysplasia (BPD) were collected as the secondary outcomes. Furthermore, other neonatal short-term outcomes and safety assessment were also included. RESULTS The measurements were calculated using intention-to-treat analysis. The median time for cord clamping were 60 s with interquartile range (IQR) (60.00-60.00 vs. 60.00-70.00) in both groups. There were no difference in the primary outcome of MV rate within 24 h of life (p = 0.184). The arterial blood gas pH at 1 h after birth in the DCC+nCPAP group was 7.28 ± 0.08 vs. 7.25 ± 0.07 in the control group (mean difference = 0.01, 95% CI: -0.01-0.05, p = 0.052), which approached statistical significance. There was no significant statistical difference in the other short-term neonatal outcomes and the safety indicators between the two groups. CONCLUSIONS Our study showed that delayed cord clamping with nCPAP was feasible and safe in preterm infants with gestational age <32 weeks. Although there was a trend toward a higher arterial blood gas pH at 1 h after birth in the DCC+nCPAP group, DCC+nCPAP neither resulted in a corresponding measurable clinical improvement nor did it reduce subsequent neonatal morbidity. A larger multi-center study including more infants with gestational age <28 weeks is needed to evaluate the full effects of DCC in combination with nCPAP in preterm infants.
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Affiliation(s)
- Rui Deng
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
| | - Yan Wu
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
| | - Guiyuan Xiao
- Chongqing Health Center for Women and Children, Chongqing, China
| | - Xiaoyun Zhong
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
| | - Hua Gong
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
| | - Wen Chen
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
| | - Ligang Zhou
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
| | - Biao Shen
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
| | - Qi Wang
- Neonatal Department, Chongqing Health Center for Women and Children, Chongqing, China
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Panaviene J, Pacheco A, Schwarz CE, Grygoryev K, Andersson-Engels S, Dempsey EM. Gas in scattering media absorption spectroscopy as a potential tool in neonatal respiratory care. Pediatr Res 2022; 92:1240-1246. [PMID: 35606473 PMCID: PMC9700509 DOI: 10.1038/s41390-022-02110-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/06/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022]
Abstract
Gas in scattering media absorption spectroscopy (GASMAS) is a novel optical technology employing near-infrared light. It has a potential use in the medical setting as a monitoring and diagnostic tool by detecting molecular oxygen within gas pockets and thus may be a useful adjunct in respiratory monitoring. GASMAS has potential advantages over other monitoring devices currently used in clinical practice. It is a non-invasive, continuous, non-ionising technology and provides unique information about molecular oxygen content inside the lungs. GASMAS may have a future role in optimising respiratory management of neonates in different clinical scenarios such as monitoring cardiorespiratory transition in the delivery room, assessing surfactant deficiency, and optimising endotracheal tube positioning. This article aims to summarise current evidence exploring GASMAS application in a neonate, discuss possible clinical benefits, and compare with other devices that are currently used in neonatal care. IMPACT: This article presents a novel optical technique to measure lung oxygen concentrations that may have important clinical uses. This review summarises the current literature investigating the concept of optical lung oxygen measurement. Information from this review can guide researchers in future studies.
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Affiliation(s)
- Jurate Panaviene
- INFANT Research Centre, University College Cork, Cork, Ireland. .,Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland. .,Department of Paediatrics and Child Health, University College Cork, Cork, Ireland.
| | - Andrea Pacheco
- grid.7872.a0000000123318773Biophotonics@Tyndall, Irish Photonic Integration Centre, Tyndall National Institute, University College Cork Lee Maltings, Dyke Parade, Cork, Ireland ,grid.7872.a0000000123318773Department of Physics, University College Cork, Cork, Ireland
| | - Christoph E. Schwarz
- grid.7872.a0000000123318773INFANT Research Centre, University College Cork, Cork, Ireland ,grid.7872.a0000000123318773Department of Paediatrics and Child Health, University College Cork, Cork, Ireland ,grid.488549.cDepartment of Neonatology, University Children’s Hospital, Tübingen, Germany
| | - Konstantin Grygoryev
- grid.7872.a0000000123318773Biophotonics@Tyndall, Irish Photonic Integration Centre, Tyndall National Institute, University College Cork Lee Maltings, Dyke Parade, Cork, Ireland
| | - Stefan Andersson-Engels
- grid.7872.a0000000123318773Biophotonics@Tyndall, Irish Photonic Integration Centre, Tyndall National Institute, University College Cork Lee Maltings, Dyke Parade, Cork, Ireland ,grid.7872.a0000000123318773Department of Physics, University College Cork, Cork, Ireland
| | - Eugene M. Dempsey
- grid.7872.a0000000123318773INFANT Research Centre, University College Cork, Cork, Ireland ,grid.411916.a0000 0004 0617 6269Department of Neonatology, Cork University Maternity Hospital, Cork, Ireland ,grid.7872.a0000000123318773Department of Paediatrics and Child Health, University College Cork, Cork, Ireland
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Niemuth M, Küster H, Simma B, Rozycki H, Rüdiger M, Solevåg AL. A critical appraisal of tools for delivery room assessment of the newborn infant. Pediatr Res 2021:10.1038/s41390-021-01896-7. [PMID: 34969993 DOI: 10.1038/s41390-021-01896-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/19/2021] [Indexed: 11/09/2022]
Abstract
Assessment of an infant's condition in the delivery room represents a prerequisite to adequately initiate medical support. In her seminal paper, Virginia Apgar described five parameters to be used for such an assessment. However, since that time maternal and neonatal care has changed; interventions were improved and infants are even more premature. Nevertheless, the Apgar score is assigned to infants worldwide but there are concerns about low interobserver reliability, especially in preterm infants. Also, resuscitative interventions may preclude the interpretation of the score, which is of concern when used as an outcome parameter in delivery room intervention studies. Within the context of these changes, we performed a critical appraisal on how to assess postnatal condition of the newborn including the clinical parameters of the Apgar score, as well as selected additional parameters and a proposed new scoring system. The development of a new scoring system that guide clinicians in assessing infants and help to decide how to support postnatal adaptation is discussed. IMPACT: This critical paper discusses the reliability of the Apgar score, as well as additional parameters, in order to improve assessment of a newborn's postnatal condition. A revised neonatal scoring system should account for infant maturity and the interventions administered. Delivery room assessment should be directed toward determining how much medical support is needed and how the infant responds to these interventions.
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Affiliation(s)
- Mara Niemuth
- Department for Neonatology and Pediatric Intensive Care, Clinic for Pediatric and Adolescence Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Helmut Küster
- Clinic for Pediatric Cardiology, Intensive Care and Neonatology, University Medical Center Göttingen, Göttingen, Germany
| | - Burkhard Simma
- Department of Paediatrics, Academic Teaching Hospital, Landeskrankenhaus Feldkirch, Feldkirch, Austria
| | - Henry Rozycki
- Division of Neonatal Medicine, Children's Hospital of Richmond, Virginia Commonwealth University, Richmond, VA, USA
| | - Mario Rüdiger
- Department for Neonatology and Pediatric Intensive Care, Clinic for Pediatric and Adolescence Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Saxony Center for Feto-Neonatal Health, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Anne Lee Solevåg
- The Department of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway.
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Higher versus Lower Oxygen Concentration during Respiratory Support in the Delivery Room in Extremely Preterm Infants: A Pilot Feasibility Study. CHILDREN 2021; 8:children8110942. [PMID: 34828655 PMCID: PMC8625238 DOI: 10.3390/children8110942] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/07/2021] [Accepted: 10/15/2021] [Indexed: 11/28/2022]
Abstract
Background: Optimal starting oxygen concentration for delivery room resuscitation of extremely preterm infants (<29 weeks) remains unknown, with recommendations of 21–30% based on uncertain evidence. Individual patient randomized trials designed to answer this question have been hampered by poor enrolment. Hypothesis: It is feasible to compare 30% vs. 60% starting oxygen for delivery room resuscitation of extremely preterm infants using a change in local hospital policy and deferred consent approach. Study design: Prospective, single-center, feasibility study, with each starting oxygen concentration used for two months for all eligible infants. Population: Infants born at 23 + 0–28 + 6 weeks’ gestation who received delivery room resuscitation. Study interventions: Initial oxygen at 30% or 60%, increasing by 10–20% every minute for heart rate < 100 bpm, or increase to 100% for chest compressions. Primary outcome: Feasibility, defined by (i) achieving difference in cumulative supplied oxygen concentration between groups, and (ii) post-intervention rate consent >50%. Results: Thirty-four infants were born during a 4-month period; consent was obtained in 63%. Thirty (n = 12, 30% group; n = 18, 60% group) were analyzed, including limited data from eight who died or were transferred before parents could be approached. Median cumulative oxygen concentrations were significantly different between the two groups in the first 5 min. Conclusion: Randomized control trial of 30% or 60% oxygen at the initiation of resuscitation of extremely preterm neonates with deferred consent is feasible. Trial registration: Clinicaltrials.gov NCT03706586
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Abstract
Bronchopulmonary dysplasia (BPD) is the most common chronic lung disease in infants and is associated with increased mortality, respiratory morbidity, neurodevelopmental impairment, and increased healthcare costs. In parallel with advances made in the field of neonatal intensive care, the phenotype of BPD has evolved from a fibrocystic disease affecting late preterm infants to one of impaired parenchymal development and dysregulated vascular growth predominantly affecting infants born before 29 weeks' gestational age. BPD has been shown to have significant lifelong consequences. Adults with BPD have been found to have abnormal lung function tests, reduced exercise tolerance, and may be at increased risk for developing chronic obstructive pulmonary disease. Evidence shows that BPD occurs secondary to genetic-environmental interactions in an immature lung. In this review, we evaluate the various clinical definitions, imaging modalities, and biomarker data that are helpful in making an early diagnosis of BPD. In addition, we evaluate recent evidence about the prevention and treatment of BPD. We discuss the invasive and non-invasive ventilation strategies and pharmacological agents used in the early, evolving, and established phases of BPD.
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Affiliation(s)
- Margaret Gilfillan
- Division of Neonatology, St Christopher's Hospital for Children, Philadelphia, PA, USA
- Drexel University College of Medicine, Philadelphia, PA, USA
| | - Anita Bhandari
- Division of Pulmonary and Sleep Medicine, Children's Hospital of Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Vineet Bhandari
- Division of Neonatology, The Children's Regional Hospital at Cooper, Camden, NJ, USA
- Cooper Medical School of Rowan University, Camden, NJ, USA
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Behnke J, Dippel CM, Choi Y, Rekers L, Schmidt A, Lauer T, Dong Y, Behnke J, Zimmer KP, Bellusci S, Ehrhardt H. Oxygen Toxicity to the Immature Lung-Part II: The Unmet Clinical Need for Causal Therapy. Int J Mol Sci 2021; 22:10694. [PMID: 34639034 PMCID: PMC8508961 DOI: 10.3390/ijms221910694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/30/2021] [Accepted: 09/30/2021] [Indexed: 12/11/2022] Open
Abstract
Oxygen toxicity continues to be one of the inevitable injuries to the immature lung. Reactive oxygen species (ROS) production is the initial step leading to lung injury and, subsequently, the development of bronchopulmonary dysplasia (BPD). Today, BPD remains the most important disease burden following preterm delivery and results in life-long restrictions in lung function and further important health sequelae. Despite the tremendous progress in the pathomechanistic understanding derived from preclinical models, the clinical needs for preventive or curative therapies remain unmet. This review summarizes the clinical progress on guiding oxygen delivery to the preterm infant and elaborates future directions of research that need to take into account both hyperoxia and hypoxia as ROS sources and BPD drivers. Many strategies have been tested within clinical trials based on the mechanistic understanding of ROS actions, but most have failed to prove efficacy. The majority of these studies were tested in an era before the latest modes of non-invasive respiratory support and surfactant application were introduced or were not appropriately powered. A comprehensive re-evaluation of enzymatic, antioxidant, and anti-inflammatory therapies to prevent ROS injury is therefore indispensable. Strategies will only succeed if they are applied in a timely and vigorous manner and with the appropriate outcome measures.
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Affiliation(s)
- Judith Behnke
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Constanze M. Dippel
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Yesi Choi
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Lisa Rekers
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Annesuse Schmidt
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Tina Lauer
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Ying Dong
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Jonas Behnke
- Department of Internal Medicine V, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Klinikstrasse 33, 35392 Giessen, Germany;
| | - Klaus-Peter Zimmer
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
| | - Saverio Bellusci
- Department of Internal Medicine II, Universities of Giessen and Marburg Lung Center (UGMLC), Cardiopulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig-University, Aulweg 130, 35392 Giessen, Germany;
| | - Harald Ehrhardt
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Lung Research Center (DZL), Feulgenstrasse 12, 35392 Giessen, Germany; (J.B.); (C.M.D.); (Y.C.); (L.R.); (A.S.); (T.L.); (Y.D.); (K.-P.Z.)
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Schwaberger B, Urlesberger B, Schmölzer GM. Delivery Room Care for Premature Infants Born after Less than 25 Weeks' Gestation-A Narrative Review. CHILDREN-BASEL 2021; 8:children8100882. [PMID: 34682147 PMCID: PMC8534639 DOI: 10.3390/children8100882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 11/16/2022]
Abstract
Premature infants born after less than 25 weeks' gestation are particularly vulnerable at birth and stabilization in the delivery room (DR) is challenging. After birth, infants born after <25 weeks' gestation develop respiratory and hemodynamic instability due to their immature physiology and anatomy. Successful stabilization at birth has the potential to reduce morbidities and mortalities, while suboptimal DR care could increase long-term sequelae. This article reviews current neonatal resuscitation guidelines and addresses challenges during DR stabilization in extremely premature infants born after <25 weeks' gestation at the threshold of viability.
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Affiliation(s)
- Bernhard Schwaberger
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, 8036 Graz, Austria; (B.S.); (B.U.)
| | - Berndt Urlesberger
- Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, 8036 Graz, Austria; (B.S.); (B.U.)
| | - Georg M. Schmölzer
- Centre for the Studies of Asphyxia and Resuscitation, Neonatal Research Unit, Royal Alexandra Hospital, Edmonton, AB T5H 3V9, Canada
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T5H 3V9, Canada
- Correspondence: ; Tel.: +1-780-735-4660
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Kapadia V, Oei JL, Finer N, Rich W, Rabi Y, Wright IM, Rook D, Vermeulen MJ, Tarnow-Mordi WO, Smyth JP, Lui K, Brown S, Saugstad OD, Vento M. Outcomes of delivery room resuscitation of bradycardic preterm infants: A retrospective cohort study of randomised trials of high vs low initial oxygen concentration and an individual patient data analysis. Resuscitation 2021; 167:209-217. [PMID: 34425156 PMCID: PMC8603874 DOI: 10.1016/j.resuscitation.2021.08.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 07/23/2021] [Accepted: 08/09/2021] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To determine whether hospital mortality (primary outcome) is associated with duration of bradycardia without chest compressions during delivery room (DR) resuscitation in a retrospective cohort study of randomized controlled trials (RCTs) in preterm infants assigned low versus high initial oxygen concentration. METHODS Medline and EMBASE were searched from 01/01/1990 to 12/01/2020. RCTs of low vs high initial oxygen concentration which recorded serial heart rate (HR) and oxygen saturation (SpO2) during resuscitation of infants <32 weeks gestational age were eligible. Individual patient level data were requested from the authors. Newborns receiving chest compressions in the DR and those with no recorded HR in the first 2 min after birth were excluded. Prolonged bradycardia (PB) was defined as HR < 100 bpm for ≥2 min. Individual patient data analysis and pooled data analysis were conducted. RESULTS Data were collected from 720 infants in 8 RCTs. Neonates with PB had higher odds of hospital death before [OR 3.8 (95% CI 1.5, 9.3)] and after [OR 1.7 (1.2, 2.5)] adjusting for potential confounders. Bradycardia occurred in 58% infants, while 38% had PB. Infants with bradycardia were more premature and had lower birth weights. The incidence of bradycardia in infants resuscitated with low (≤30%) and high (≥60%) oxygen was similar. Neonates with both, PB and SpO2 < 80% at 5 min after birth had higher odds of hospital mortality. [OR 18.6 (4.3, 79.7)]. CONCLUSION In preterm infants who did not receive chest compressions in the DR, prolonged bradycardia is associated with hospital mortality.
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Affiliation(s)
- Vishal Kapadia
- Division of Neonatal-Perinatal Medicine, UT Southwestern Medical Center at Dallas, TX, USA.
| | - Ju Lee Oei
- Department of Newborn Care, The Royal Hospital for Women, Randwick, NSW, Australia; School of Women's and Children's Health, University of New South Wales, Randwick, NSW, Australia; NHMRC Clinical Trials Centre, University of Sydney, Camperdown, NSW, Australia
| | - Neil Finer
- Department of Neonatology, University of California San Diego, San Diego, CA, USA
| | - Wade Rich
- Department of Neonatology, University of California San Diego, San Diego, CA, USA
| | - Yacov Rabi
- University of Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, Alberta, Canada
| | - Ian M Wright
- Illawarra Health and Medical Research Institute and Graduate Medicine, The University of Wollongong, Wollongong, NSW, Australia
| | - Denise Rook
- Department of Pediatrics, Division of Neonatology, Erasmus Medical Centre, Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Marijn J Vermeulen
- Department of Pediatrics, Division of Neonatology, Erasmus Medical Centre, Sophia Children's Hospital, Rotterdam, the Netherlands
| | | | - John P Smyth
- Department of Newborn Care, The Royal Hospital for Women, Randwick, NSW, Australia; School of Women's and Children's Health, University of New South Wales, Randwick, NSW, Australia
| | - Kei Lui
- Department of Newborn Care, The Royal Hospital for Women, Randwick, NSW, Australia; School of Women's and Children's Health, University of New South Wales, Randwick, NSW, Australia
| | - Steven Brown
- Parkland Health and Hospital System, Dallas, TX, USA
| | - Ola D Saugstad
- Department of Pediatric Research, University of Oslo, Oslo University Hospital, Norway; Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University, Feinberg School of Medicine, USA
| | - Maximo Vento
- Division of Neonatology, University and Polytechnic Hospital La Fe, Valencia, Spain
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43
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Stimulating and maintaining spontaneous breathing during transition of preterm infants. Pediatr Res 2021; 90:722-730. [PMID: 31216570 DOI: 10.1038/s41390-019-0468-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/25/2019] [Accepted: 06/03/2019] [Indexed: 01/30/2023]
Abstract
Most preterm infants breathe at birth, but need additional respiratory support due to immaturity of the lung and respiratory control mechanisms. To avoid lung injury, the focus of respiratory support has shifted from invasive towards non-invasive ventilation. However, applying effective non-invasive ventilation is difficult due to mask leak and airway obstruction. The larynx has been overlooked as one of the causes for obstruction, preventing face mask ventilation from inflating the lung. The larynx remains mostly closed at birth, only opening briefly during a spontaneous breath. Stimulating and supporting spontaneous breathing could enhance the success of non-invasive ventilation by ensuring that the larynx remains open. Maintaining adequate spontaneous breathing and thereby reducing the need for invasive ventilation is not only important directly after birth, but also in the first hours after admission to the NICU. Respiratory distress syndrome is an important cause of respiratory failure. Traditionally, treatment of RDS required intubation and mechanical ventilation to administer exogenous surfactant. However, new ways have been implemented to administer surfactant and preserve spontaneous breathing while maintaining non-invasive support. In this narrative review we aim to describe interventions focused on stimulation and maintenance of spontaneous breathing of preterm infants in the first hours after birth.
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Vadakkencherry Ramaswamy V, Abiramalatha T, Weiner GM, Trevisanuto D. A comparative evaluation and appraisal of 2020 American Heart Association and 2021 European Resuscitation Council neonatal resuscitation guidelines. Resuscitation 2021; 167:151-159. [PMID: 34464679 DOI: 10.1016/j.resuscitation.2021.08.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 01/08/2023]
Abstract
AIM The International Liaison Committee on Resuscitation (ILCOR) 2020 Consensus on Science and Treatment Recommendations (CoSTR) for Neonatal Life Support forms the basis for guidelines developed by regional councils such as the American Heart Association (AHA) and the European Resuscitation Council (ERC). We aimed to determine if the updated guidelines are congruent, identify the source of variation, and score their quality. METHODS We compared the approach to developing recommendations, final recommendations, and cited evidence in the AHA 2020 and ERC 2021 neonatal resuscitation guidelines. Two investigators scored guideline quality using the Appraisal of Guidelines for Research and Evaluation II (AGREE II) tool. RESULTS Differences in the recommendations were found between AHA 2020 and ERC 2021 neonatal resuscitation guidelines. The councils gave differing recommendations for practices that had sparse evidence and made recommendations based on expert consensus or observational studies. AGREE II assessment revealed that AHA scored better for the domain 'rigour of development', but ERC had a higher score for 'stakeholder involvement'. Both AHA and ERC scored relatively less for 'applicability'. CONCLUSION AHA and ERC guidelines are predominantly based on the ILCOR CoSTR. Differences in recommendations between the two were largely related to the evidence gathering process for questions not reviewed by ILCOR, paucity of evidence for some recommendations based on existing regional practices and supported by expert opinion, and different interpretation or application of same evidence. Overall, both guidelines scored well on the AGREE II assessment, but each had domains that could be improved in future editions.
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Affiliation(s)
| | - Thangaraj Abiramalatha
- Department of Neonatology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Gary M Weiner
- Department of Pediatrics - Neonatology, University of Michigan, Ann Arbor, MI, United States
| | - Daniele Trevisanuto
- Department of Woman's and Child's Health, University Hospital of Padua, Padua, Italy.
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Çizmeci MN, Akın MA, Özek E. Turkish Neonatal Society Guideline on the Diagnosis and Management of Germinal Matrix Hemorrhage-Intraventricular Hemorrhage and Related Complications. Turk Arch Pediatr 2021; 56:499-512. [PMID: 35110121 PMCID: PMC8849013 DOI: 10.5152/turkarchpediatr.2021.21142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Germinal matrix hemorrhage-intraventricular hemorrhage (GMH-IVH) remains an important cause of brain injury in preterm infants, and is associated with high rates of mortality and adverse neurodevelopmental outcomes, despite the recent advances in perinatal care. Close neuroimaging is recommended for both the detection of GMH-IVH and for the follow-up of serious complications, such as post-hemorrhagic ventricular dilatation (PHVD). Although the question when best to treat PHVD remains a matter of debate, recent literature on this topic shows that later timing of interventions predicted higher rates of neurodevelopmental impairment, emphasizing the importance of a well-structured neuroimaging protocol and timely interventions. In this guideline, pathophysiologic mechanisms, preventive measures, and clinical presentations of GMH-IVH and PHVD will be presented, and a neuroimaging protocol as well as an optimal treatment approach will be proposed in light of the recent literature.
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Affiliation(s)
- Mehmet Nevzat Çizmeci
- Division of Neonatology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Mustafa Ali Akın
- Division of Neonatology, Department of Pediatrics, Ondokuz Mayıs University, Samsun, Turkey
| | - Eren Özek
- Division of Neonatology, Department of Pediatrics, Marmara University, Istanbul, Turkey,Corresponding author:Eren Özek ✉
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Delivery room oxygen physiology and respiratory interventions for newborns with cyanotic congenital heart disease. J Perinatol 2021; 41:2309-2316. [PMID: 33758390 DOI: 10.1038/s41372-021-01029-2] [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: 10/02/2020] [Revised: 02/07/2021] [Accepted: 02/19/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To characterize pulse oxygen saturation (SpO2) trajectories and respiratory interventions after birth for newborns with cyanotic congenital heart disease (CCHD). STUDY DESIGN Retrospective single-site study of newborns ≥32 weeks gestation with CCHD: single ventricle with critical aortic obstruction (SV-CAO), critical pulmonic obstruction (CPO), transposition of the great arteries (TGA). Minute-to-minute SpO2 values and respiratory interventions were summarized and compared. RESULTS Two hundred infants were enrolled. SpO2 at each minute differed across groups (p < 0.01), with the lowest values in TGA. All interventions were most frequent in TGA (p < 0.01). Continuous positive airway pressure was provided in 22% SV-CAO, 23% CPO, and 66% TGA. Positive pressure ventilation occurred in 7% SV-CAO, 14% CPO, and 33% TGA. Intubation occurred in 4% SV-CAO, 10% CPO, and 53% TGA. CONCLUSION We defined SpO2 trajectories and delivery room respiratory interventions for three CCHD phenotypes. These results inform delivery room management of these high-risk populations.
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Zeballos Sarrato G, Avila-Alvarez A, Escrig Fernández R, Izquierdo Renau M, Ruiz Campillo CW, Gómez Robles C, Iriondo Sanz M. [Spanish guide for neonatal stabilization and resuscitation 2021: Analysis, adaptation and consensus on international recommendations]. An Pediatr (Barc) 2021; 96:S1695-4033(21)00213-7. [PMID: 34304987 DOI: 10.1016/j.anpedi.2021.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/01/2021] [Accepted: 06/04/2021] [Indexed: 11/24/2022] Open
Abstract
After the publication of the recommendations, agreed by all the scientific societies through the ILCOR, at the end of 2020, the GRN-SENeo began a process of analysis and review of the main changes since the last guidelines, to which a specific consensus positioning on controversial issues, trying to avoid ambiguities and trying to adapt the evidence to our environment. This text summarizes the main conclusions of this work and reflects the positioning of that group.
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Affiliation(s)
| | - Alejandro Avila-Alvarez
- Unidad de Neonatología, Servicio de Pediatría, Complexo Hospitalario Universitario, A Coruña (CHUAC), Sergas, A Coruña, España
| | | | - Montserrat Izquierdo Renau
- Servicio de Neonatología, Sant Joan de Déu, BCNatal, Hospital Sant Joan de Déu-Hospital Clínic, Universidad de Barcelona, Barcelona, España
| | | | - Celia Gómez Robles
- Servicio de Neonatología, Hospital Regional Universitario de Málaga, Málaga, España
| | - Martín Iriondo Sanz
- Servicio de Neonatología, Sant Joan de Déu, BCNatal, Hospital Sant Joan de Déu-Hospital Clínic, Universidad de Barcelona, Barcelona, España
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A multi-centre randomised controlled trial of respiratory function monitoring during stabilisation of very preterm infants at birth. Resuscitation 2021; 167:317-325. [PMID: 34302924 DOI: 10.1016/j.resuscitation.2021.07.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/30/2021] [Accepted: 07/13/2021] [Indexed: 11/21/2022]
Abstract
AIM To determine whether the use of a respiratory function monitor (RFM) during PPV of extremely preterm infants at birth, compared with no RFM, leads to an increase in percentage of inflations with an expiratory tidal volume (Vte) within a predefined target range. METHODS Unmasked, randomised clinical trial conducted October 2013 - May 2019 in 7 neonatal intensive care units in 6 countries. Very preterm infants (24-27 weeks of gestation) receiving PPV at birth were randomised to have a RFM screen visible or not. The primary outcome was the median proportion of inflations during manual PPV (face mask or intubated) within the target range (Vte 4-8 mL/kg). There were 42 other prespecified monitor measurements and clinical outcomes. RESULTS Among 288 infants randomised (median (IQR) gestational age 26+2 (25+3-27+1) weeks), a total number of 51,352 inflations were analysed. The median (IQR) percentage of inflations within the target range in the RFM visible group was 30.0 (18.0-42.2)% vs 30.2 (14.8-43.1)% in the RFM non-visible group (p = 0.721). There were no differences in other respiratory function measurements, oxygen saturation, heart rate or FiO2. There were no differences in clinical outcomes, except for the incidence of intraventricular haemorrhage (all grades) and/or cystic periventricular leukomalacia (visible RFM: 26.7% vs non-visible RFM: 39.0%; RR 0.71 (0.68-0.97); p = 0.028). CONCLUSION In very preterm infants receiving PPV at birth, the use of a RFM, compared to no RFM as guidance for tidal volume delivery, did not increase the percentage of inflations in a predefined target range. TRIAL REGISTRATION Dutch Trial Register NTR4104, clinicaltrials.gov NCT03256578.
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Fawke J, Scrivens A. Does measuring what is expired reduce the risk of expiring? Resuscitation 2021; 166:139-141. [PMID: 34271126 DOI: 10.1016/j.resuscitation.2021.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 06/25/2021] [Indexed: 11/18/2022]
Affiliation(s)
- Joe Fawke
- University Hospitals Leicester NHS Trust, UK; Resuscitation Council, UK; Health Education England, UK.
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Lakshminrusimha S, Vali P, Chandrasekharan P, Rich W, Katheria A. Differential Alveolar and Systemic Oxygenation during Preterm Resuscitation with 100% Oxygen during Delayed Cord Clamping. Am J Perinatol 2021; 40:630-637. [PMID: 34062568 DOI: 10.1055/s-0041-1730362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Delayed cord clamping (DCC) and 21 to 30% O2 resuscitation is recommended for preterm infants but is commonly associated with low pulmonary blood flow (Qp) and hypoxia. 100% O2 supplementation during DCC for 60 seconds followed by 30% O2 may increase Qp and oxygen saturation (SpO2). STUDY DESIGN Preterm lambs (125-127 days of gestation) were resuscitated with 100% O2 with immediate cord clamping (ICC, n = 7) or ICC + 30% O2, and titrated to target SpO2 (n = 7) or DCC + 100% O2 for 60 seconds, which followed by cord clamping and 30% O2 titration (n = 7). Seven preterm (23-27 weeks of gestation) human infants received continuous positive airway pressure (CPAP) + 100% O2 for 60 seconds during DCC, cord clamping, and 30% O2 supplementation after cord clamping. RESULTS Preterm lambs in the ICC + 100% O2 group resulted in PaO2 (77 ± 25 mmHg), SpO2 (77 ± 11%), and Qp (27 ± 9 mL/kg/min) at 60 seconds. ICC + 30% O2 led to low Qp (14 ± 3 mL/kg/min), low SpO2 (43 ± 26%), and PaO2 (19 ± 7 mmHg). DCC + 100% O2 led to similar Qp (28 ± 6 mL/kg/min) as ICC + 100% O2 with lower PaO2. In human infants, DCC + CPAP with 100% O2 for 60 seconds, which followed by weaning to 30% resulted in SpO2 of 92 ± 11% with all infants >80% at 5 minutes with 100% survival without severe intraventricular hemorrhage. CONCLUSION DCC + 100% O2 for 60 seconds increased Qp probably due to transient alveolar hyperoxia with systemic normoxia due to "dilution" by umbilical venous return. Larger translational and clinical studies are warranted to confirm these findings. KEY POINTS · Transient alveolar hyperoxia during delayed cord clamping can enhance pulmonary vasodilation.. · Placental transfusion buffers systemic oxygen tension and limits hyperoxia.. · Use of 100% oxygen for 60 seconds during DCC was associated with SpO2 ≥80% by 5 minutes..
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Affiliation(s)
| | - Payam Vali
- Department of Pediatrics, University of California Davis, Sacramento, California
| | | | - Wade Rich
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women and Newborns, San Diego, California
| | - Anup Katheria
- Neonatal Research Institute, Sharp Mary Birch Hospital for Women and Newborns, San Diego, California
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