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Boscarino G, Cardilli V, Conti MG, Liguori F, Repole P, Parisi P, Terrin G. Outcomes of postnatal systemic corticosteroids administration in ventilated preterm newborns: a systematic review of randomized controlled trials. Front Pediatr 2024; 12:1344337. [PMID: 38419972 PMCID: PMC10899705 DOI: 10.3389/fped.2024.1344337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 01/30/2024] [Indexed: 03/02/2024] Open
Abstract
Introduction Prolonged mechanical ventilation, commonly used to assist preterm newborns, increases the risk of developing bronchopulmonary dysplasia (BPD). In recent decades, studies have demonstrated that systemic corticosteroids play a significant role in the prevention and management of BPD. In this systematic review of randomized controlled trials (RCTs), we evaluated the association between the administration of systemic corticosteroids in preterm infants and its long-term outcomes, such as neurodevelopment, growth, extubation rate, and related adverse effects. Methods We conducted an electronic search in Medline, Scopus, and PubMed using the following terms: "premature infants" and "corticosteroids." We considered all RCTs published up to June 2023 as eligible. We included all studies involving preterm newborns treated with systemic corticosteroids and excluded studies on inhaled corticosteroids. Results A total of 39 RCTs were evaluated. The influence of steroids administered systemically during the neonatal period on long-term neurological outcomes remains unknown, with no influence observed for long-term growth. The postnatal administration of systemic corticosteroids has been found to reduce the timing of extubation and improve respiratory outcomes. Dexamethasone appears to be more effective than hydrocortisone, despite causing a higher rate of systemic hypertension and hyperglycemia. However, in the majority of RCTs analyzed, there were no differences in the adverse effects related to postnatal corticosteroid administration. Conclusion Dexamethasone administered during the neonatal period appears to be more effective than hydrocortisone in terms of respiratory outcomes; however, caution should be taken when administering dexamethasone. Data derived from current evidence, including meta-analyses, are inconclusive on the long-term effects of the administration of systemic steroids in preterm infants or the possibility of neurodevelopmental consequences.
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Affiliation(s)
- Giovanni Boscarino
- Department of Maternal and Child Health, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Viviana Cardilli
- Department of Maternal and Child Health, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Maria Giulia Conti
- Department of Maternal and Child Health, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Federica Liguori
- Department of Maternal and Child Health, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Paola Repole
- Department of Maternal and Child Health, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Pasquale Parisi
- Pediatrics Unit, Department of Neuroscience, Mental Health and Sense Organs (NESMOS), Faculty of Medicine and Psychology, Sant’ Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Gianluca Terrin
- Department of Maternal and Child Health, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
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Kwok TC, Szatkowski L, Sharkey D. Impact of postnatal dexamethasone timing on preterm mortality and bronchopulmonary dysplasia: a propensity score analysis. Eur Respir J 2023; 62:2300825. [PMID: 37591537 PMCID: PMC10586235 DOI: 10.1183/13993003.00825-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 08/08/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND Postnatal dexamethasone (PND) is used in high-risk preterm infants after the first week of life to facilitate extubation and prevent bronchopulmonary dysplasia (BPD) but the optimal treatment timing remains unclear. Our objective was to explore the association between the timing of PND commencement and mortality and respiratory outcomes. METHODS This was a retrospective National Neonatal Research Database study of 84 440 premature infants born <32 weeks gestational age from 2010 to 2020 in England and Wales. Propensity score weighting analysis was used to explore the impact of PND commenced at three time-points (2-3 weeks (PND2/3), 4-5 weeks (PND4/5) and after 5 weeks (PND6+) chronological age) on the primary composite outcome of death before neonatal discharge and/or severe BPD (defined as respiratory pressure support at 36 weeks) alongside other secondary respiratory outcomes. RESULTS 3469 infants received PND. Compared with PND2/3, infants receiving PND6+ were more likely to die and/or develop severe BPD (OR 1.68, 95% CI 1.28-2.21), extubate at later postmenstrual age (mean difference 3.1 weeks, 95% CI 2.9-3.4 weeks), potentially require respiratory support at discharge (OR 1.34, 95% CI 1.06-1.70) but had lower mortality before discharge (OR 0.38, 95% CI 0.29-0.51). PND4/5 was not associated with severe BPD or discharge respiratory support. CONCLUSIONS PND treatment after 5 weeks of age was associated with worse respiratory outcomes although residual bias cannot be excluded. A definitive clinical trial to determine the optimal PND treatment window, based on early objective measures to identify high-risk infants, is needed.
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Affiliation(s)
- T'ng Chang Kwok
- Centre for Perinatal Research, Population and Lifespan Science, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Lisa Szatkowski
- Centre for Perinatal Research, Population and Lifespan Science, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Don Sharkey
- Centre for Perinatal Research, Population and Lifespan Science, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, UK
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Hay S, Ovelman C, Zupancic JA, Doyle LW, Onland W, Konstantinidis M, Shah PS, Soll R. Systemic corticosteroids for the prevention of bronchopulmonary dysplasia, a network meta-analysis. Cochrane Database Syst Rev 2023; 8:CD013730. [PMID: 37650547 PMCID: PMC10468918 DOI: 10.1002/14651858.cd013730.pub2] [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] [Indexed: 09/01/2023]
Abstract
BACKGROUND Despite considerable improvement in outcomes for preterm infants, rates of bronchopulmonary dysplasia (BPD) remain high, affecting an estimated 33% of very low birthweight infants, with corresponding long-term respiratory and neurosensory issues. Systemic corticosteroids can address the inflammation underlying BPD, but the optimal regimen for prevention of this disease, balancing of the benefits with the potentially meaningful risks of systemic corticosteroids, continues to be a medical quandary. Numerous studies have shown that systemic corticosteroids, particularly dexamethasone and hydrocortisone, effectively treat or prevent BPD. However, concerning short and long-term side effects have been reported and the optimal approach to corticosteroid treatment remains unclear. OBJECTIVES To determine whether differences in efficacy and safety exist between high-dose dexamethasone, moderate-dose dexamethasone, low-dose dexamethasone, hydrocortisone, and placebo in the prevention of BPD, death, the composite outcome of death or BPD, and other relevant morbidities, in preterm infants through a network meta-analysis, generating both pairwise comparisons between all treatments and rankings of the treatments. SEARCH METHODS We searched the Cochrane Library for all systematic reviews of systemic corticosteroids for the prevention of BPD and searched for completed and ongoing studies in the following databases in January 2023: Cochrane Central Register of Controlled Trials, MEDLINE, Embase, and clinical trial databases. SELECTION CRITERIA We included randomized controlled trials (RCTs) in preterm infants (< 37 weeks' gestation) at risk for BPD that evaluated systemic corticosteroids (high-dose [≥ 4 mg/kg cumulative dose] dexamethasone, moderate-dose [≥ 2 to < 4 mg/kg] dexamethasone, low-dose [< 2 mg/kg] dexamethasone, or hydrocortisone) versus control or another systemic corticosteroid. DATA COLLECTION AND ANALYSIS Our main information sources were the systematic reviews, with reference to the original manuscript only for data not included in these reviews. Teams of two paired review authors independently performed data extraction, with disagreements resolved by discussion. Data were entered into Review Manager 5 and exported to R software for network meta-analysis (NMA). NMA was performed using a frequentist model with random-effects. Two separate networks were constructed, one for early (< seven days) initiation of treatment and one for late (≥ seven days) treatment initiation, to reflect the different patient populations evaluated. We assessed the certainty of evidence derived from the NMA for our primary outcomes using principles of the GRADE framework modified for application to NMA. MAIN RESULTS We included 59 studies, involving 6441 infants, in our analyses. Only six of the included studies provided direct comparisons between any of the treatment (dexamethasone or hydrocortisone) groups, forcing network comparisons between treatments to rely heavily on indirect evidence through comparisons with placebo/no treatment groups. Thirty-one studies evaluated early corticosteroid treatment, 27 evaluated late corticosteroid treatment, and one study evaluated both early and late corticosteroid treatments. Early treatment (prior to seven days after birth): Benefits:NMA for early treatment showed only moderate-dose dexamethasone to decrease the risk of BPD at 36 weeks' postmenstrual age (PMA) compared with control (RR 0.56, 95% CI 0.39 to 0.80; moderate-certainty evidence), although the other dexamethasone dosing regimens may have similar effects compared with control (high-dose dexamethasone, RR 0.71, 95% CI 0.50 to 1.01; low-certainty evidence; low-dose dexamethasone, RR 0.83, 95% CI 0.67 to 1.03; low-certainty evidence). Other early treatment regimens may have little or no effect on the risk of death at 36 weeks' PMA. Only moderate-dose dexamethasone decreased the composite outcome of death or BPD at 36 weeks' PMA compared with control (RR 0.77, 95% CI 0.60 to 0.98; moderate-certainty evidence). HARMS Low-dose dexamethasone increased the risk for cerebral palsy (RR 1.92, 95% CI 1.12 to 3.28; moderate-certainty evidence) compared with control. Hydrocortisone may decrease the risk of major neurosensory disability versus low-dose dexamethasone (RR 0.65, 95% CI 0.41 to 1.01; low-certainty evidence). Late treatment (at seven days or later after birth): Benefits: NMA for late treatment showed high-dose dexamethasone to decrease the risk of BPD both versus hydrocortisone (RR 0.66, 95% CI 0.51 to 0.85; low-certainty evidence) and versus control (RR 0.72, CI 0.59 to 0.87; moderate-certainty evidence). The late treatment regimens evaluated may have little or no effect on the risk of death at 36 weeks' PMA. High-dose dexamethasone decreased risk for the composite outcome of death or BPD compared with all other treatments (control, RR 0.69, 95% CI 0.59 to 0.80, high-certainty evidence; hydrocortisone, RR 0.69, 95% CI 0.58 to 0.84, low-certainty evidence; low-dose dexamethasone, RR 0.73, 95% CI 0.60 to 0.88, low-certainty evidence; moderate-dose dexamethasone, RR 0.76, 95% CI 0.62 to 0.93, low-certainty evidence). HARMS No effect was observed for the outcomes of major neurosensory disability or cerebral palsy. The evidence for the primary outcomes was of overall low certainty, with notable deductions for imprecision and heterogeneity across the networks. AUTHORS' CONCLUSIONS While early treatment with moderate-dose dexamethasone or late treatment with high-dose dexamethasone may lead to the best effects for survival without BPD, the certainty of the evidence is low. There is insufficient evidence to guide this therapy with regard to plausible adverse long-term outcomes. Further RCTs with direct comparisons between systemic corticosteroid treatments are needed to determine the optimal treatment approach, and these studies should be adequately powered to evaluate survival without major neurosensory disability.
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Affiliation(s)
- Susanne Hay
- Department of Neonatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Colleen Ovelman
- Center for Health Informatics and Evidence Synthesis, RTI International, Durham, NC, USA
| | - John Af Zupancic
- Department of Neonatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Lex W Doyle
- Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Australia
| | - Wes Onland
- Department of Neonatology, Emma Children's Hospital AMC, University of Amsterdam, Amsterdam, Netherlands
| | - Menelaos Konstantinidis
- Division of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Prakeshkumar S Shah
- Department of Paediatrics and Institute of Health Policy, Management and Evaluation, University of Toronto Mount Sinai Hospital, Toronto, Canada
| | - Roger Soll
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Larner College of Medicine at the University of Vermont, Burlington, Vermont, USA
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Onland W, van de Loo M, Offringa M, van Kaam A. Systemic corticosteroid regimens for prevention of bronchopulmonary dysplasia in preterm infants. Cochrane Database Syst Rev 2023; 3:CD010941. [PMID: 36912887 PMCID: PMC10015219 DOI: 10.1002/14651858.cd010941.pub3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
BACKGROUND Systematic reviews showed that systemic postnatal corticosteroids reduce the risk of bronchopulmonary dysplasia (BPD) in preterm infants. However, corticosteroids have also been associated with an increased risk of neurodevelopmental impairment. It is unknown whether these beneficial and adverse effects are modulated by differences in corticosteroid treatment regimens related to type of steroid, timing of treatment initiation, duration, pulse versus continuous delivery, and cumulative dose. OBJECTIVES To assess the effects of different corticosteroid treatment regimens on mortality, pulmonary morbidity, and neurodevelopmental outcome in very low birth weight infants. SEARCH METHODS We conducted searches in September 2022 of MEDLINE, the Cochrane Library, Embase, and two trial registries, without date, language or publication- type limits. Other search methods included checking the reference lists of included studies for randomized controlled trials (RCTs) and quasi-randomized trials. SELECTION CRITERIA We included RCTs comparing two or more different treatment regimens of systemic postnatal corticosteroids in preterm infants at risk for BPD, as defined by the original trialists. The following comparisons of intervention were eligible: alternative corticosteroid (e.g. hydrocortisone) versus another corticosteroid (e.g. dexamethasone); lower (experimental arm) versus higher dosage (control arm); later (experimental arm) versus earlier (control arm) initiation of therapy; a pulse-dosage (experimental arm) versus continuous-dosage regimen (control arm); and individually-tailored regimens (experimental arm) based on the pulmonary response versus a standardized (predetermined administered to every infant) regimen (control arm). We excluded placebo-controlled and inhalation corticosteroid studies. DATA COLLECTION AND ANALYSIS Two authors independently assessed eligibility and risk of bias of trials, and extracted data on study design, participant characteristics and the relevant outcomes. We asked the original investigators to verify if data extraction was correct and, if possible, to provide any missing data. We assessed the following primary outcome: the composite outcome mortality or BPD at 36 weeks' postmenstrual age (PMA). Secondary outcomes were: the components of the composite outcome; in-hospital morbidities and pulmonary outcomes, and long-term neurodevelopmental sequelae. We analyzed data using Review Manager 5 and used the GRADE approach to assess the certainty of the evidence. MAIN RESULTS We included 16 studies in this review; of these, 15 were included in the quantitative synthesis. Two trials investigated multiple regimens, and were therefore included in more than one comparison. Only RCTs investigating dexamethasone were identified. Eight studies enrolling a total of 306 participants investigated the cumulative dosage administered; these trials were categorized according to the cumulative dosage investigated, 'low' being < 2 mg/kg, 'moderate' being between 2 and 4 mg/kg, and 'high' > 4 mg/kg; three studies contrasted a high versus a moderate cumulative dose, and five studies a moderate versus a low cumulative dexamethasone dose. We graded the certainty of the evidence low to very low because of the small number of events, and the risk of selection, attrition and reporting bias. Overall analysis of the studies investigating a higher dose versus a lower dosage regimen showed no differences in the outcomes BPD, the composite outcome death or BPD at 36 weeks' PMA, or abnormal neurodevelopmental outcome in survivors assessed. Although there was no evidence of a subgroup difference for the higher versus lower dosage regimens comparisons (Chi2 = 2.91, df = 1 (P = 0.09), I2 = 65.7%), a larger effect was seen in the subgroup analysis of moderate-dosage regimens versus high-dosage regimens for the outcome cerebral palsy in survivors. In this subgroup analysis, there was an increased risk of cerebral palsy (RR 6.85, 95% CI 1.29 to 36.36; RD 0.23, 95% CI 0.08 to 0.37; P = 0.02; I² = 0%; NNTH 5, 95% CI 2.6 to 12.7; 2 studies, 74 infants). There was evidence of subgroup differences for higher versus lower dosage regimens comparisons for the combined outcomes death or cerebral palsy, and death and abnormal neurodevelopmental outcomes (Chi2 = 4.25, df = 1 (P = 0.04), I2 = 76.5%; and Chi2 = 7.11, df = 1 (P = 0.008), I2 = 85.9%, respectively). In the subgroup analysis comparing a high dosage regimen of dexamethasone versus a moderate cumulative-dosage regimen, there was an increased risk of death or cerebral palsy (RR 3.20, 95% CI 1.35 to 7.58; RD 0.25, 95% CI 0.09 to 0.41; P = 0.002; I² = 0%; NNTH 5, 95% CI 2.4 to 13.6; 2 studies, 84 infants; moderate-certainty evidence), and death or abnormal neurodevelopmental outcome (RR 3.41, 95% CI 1.44 to 8.07; RD 0.28, 95% CI 0.11 to 0.44; P = 0.0009; I² = 0%; NNTH 4, 95% CI 2.2 to 10.4; 2 studies, 84 infants; moderate-certainty evidence). There were no differences in outcomes between a moderate- and a low-dosage regimen. Five studies enrolling 797 infants investigated early initiation of dexamethasone therapy versus a moderately early or delayed initiation, and showed no significant differences in the overall analyses for the primary outcomes. The two RCTs investigating a continuous versus a pulse dexamethasone regimen showed an increased risk of the combined outcome death or BPD when using the pulse therapy. Finally, three trials investigating a standard regimen versus a participant-individualized course of dexamethasone showed no difference in the primary outcome and long-term neurodevelopmental outcomes. We assessed the GRADE certainty of evidence for all comparisons discussed above as moderate to very low, because the validity of all comparisons is hampered by unclear or high risk of bias, small samples of randomized infants, heterogeneity in study population and design, non-protocolized use of 'rescue' corticosteroids and lack of long-term neurodevelopmental data in most studies. AUTHORS' CONCLUSIONS The evidence is very uncertain about the effects of different corticosteroid regimens on the outcomes mortality, pulmonary morbidity, and long term neurodevelopmental impairment. Despite the fact that the studies investigating higher versus lower dosage regimens showed that higher-dosage regimens may reduce the incidence of death or neurodevelopmental impairment, we cannot conclude what the optimal type, dosage, or timing of initiation is for the prevention of BPD in preterm infants, based on current level of evidence. Further high quality trials would be needed to establish the optimal systemic postnatal corticosteroid dosage regimen.
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Affiliation(s)
- Wes Onland
- Emma Children's Hospital, Amsterdam University Medical Centers, Department of Neonatology, Amsterdam, Netherlands
- Amsterdam Reproduction & Development, Amsterdam, Netherlands
| | - Moniek van de Loo
- Emma Children's Hospital, Amsterdam University Medical Centers, Department of Neonatology, Amsterdam, Netherlands
- Amsterdam Reproduction & Development, Amsterdam, Netherlands
| | - Martin Offringa
- Child Health Evaluative Sciences, Hospital for Sick Children, Toronto, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
- Division of Neonatology, The Hospital for Sick Children, Toronto, Canada
| | - Anton van Kaam
- Emma Children's Hospital, Amsterdam University Medical Centers, Department of Neonatology, Amsterdam, Netherlands
- Amsterdam Reproduction & Development, Amsterdam, Netherlands
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Puia-Dumitrescu M, Wood TR, Comstock BA, Law JB, German K, Perez KM, Gogcu S, Mayock DE, Heagerty PJ, Juul SE. Dexamethasone, Prednisolone, and Methylprednisolone Use and 2-Year Neurodevelopmental Outcomes in Extremely Preterm Infants. JAMA Netw Open 2022; 5:e221947. [PMID: 35275165 PMCID: PMC8917427 DOI: 10.1001/jamanetworkopen.2022.1947] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
IMPORTANCE Practice variability exists in the use of corticosteroids to treat or prevent bronchopulmonary dysplasia in extremely preterm infants, but there is limited information on longer-term impacts. OBJECTIVE To describe the use of corticosteroids in extremely preterm infants and evaluate the association with neurodevelopmental outcomes. DESIGN, SETTING, AND PARTICIPANTS This cohort study was a secondary analysis of data from the Preterm Erythropoietin Neuroprotection (PENUT) randomized clinical trial, conducted at 19 participating sites and 30 neonatal intensive care units (NICUs) in the US. Inborn infants born between 24 0/7 and 27 6/7 weeks gestational age between December 2013 and September 2016 were included in analysis. Data analysis was conducted between February 2021 and January 2022. EXPOSURES Cumulative dose of dexamethasone and duration of therapy for dexamethasone and prednisolone or methyl prednisolone were evaluated. MAIN OUTCOMES AND MEASURES Demographic and clinical characteristics were described in infants who did or did not receive corticosteroids of interest and survived to discharge. Neurodevelopmental outcomes at 2 years of age were evaluated using the Bayley Scales of Infant Development-Third Edition (BSID-III) at corrected age 2 years. RESULTS A total of 828 extremely preterm infants (403 [49%] girls; median [IQR] gestational age, 26 [25-27] weeks) born at 19 sites who survived to discharge were included in this analysis, and 312 infants (38%) were exposed to at least 1 corticosteroid of interest during their NICU stay, including 279 exposed to dexamethasone, 137 exposed to prednisolone or methylprednisolone, and 79 exposed to both. Exposed infants, compared with nonexposed infants, had a lower birth weight (mean [SD], 718 [168] g vs 868 [180] g) and were born earlier (mean [SD] gestational age, 25 [1] weeks vs 26 [1] weeks). The median (IQR) start day was 29 (20-44) days for dexamethasone and 53 (30-90) days for prednisolone or methylprednisolone. The median (IQR) total days of exposure was 10 (5-15) days for dexamethasone and 13 (6-25) days for prednisolone or methylprednisolone. The median (IQR) cumulative dose of dexamethasone was 1.3 (0.9-2.8) mg/kg. After adjusting for potential confounders, treatment with dexamethasone for longer than 14 days was associated with worse neurodevelopmental outcomes, with mean scores in BSID-III 7.4 (95% CI, -12.3 to -2.5) points lower in the motor domain (P = .003) and 5.8 (95% CI, -10.9 to -0.6) points lower in the language domain (P = .03), compared with unexposed infants. CONCLUSIONS AND RELEVANCE These findings suggest that long duration and higher cumulative dose of dexamethasone were associated with worse neurodevelopmental scores at corrected age 2 years. Potential unmeasured differences in the clinical conditions of exposed vs unexposed infants may contribute to these findings. Improved standardization of treatment and documentation of indications would facilitate replication studies.
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Affiliation(s)
- Mihai Puia-Dumitrescu
- Division of Neonatology, Department of Pediatrics, University of Washington, Seattle
| | - Thomas R. Wood
- Division of Neonatology, Department of Pediatrics, University of Washington, Seattle
| | | | - Janessa B. Law
- Division of Neonatology, Department of Pediatrics, University of Washington, Seattle
| | - Kendell German
- Division of Neonatology, Department of Pediatrics, University of Washington, Seattle
| | - Krystle M. Perez
- Division of Neonatology, Department of Pediatrics, University of Washington, Seattle
| | - Semsa Gogcu
- Division of Neonatology, Department of Pediatrics, Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Dennis E. Mayock
- Division of Neonatology, Department of Pediatrics, University of Washington, Seattle
| | | | - Sandra E. Juul
- Division of Neonatology, Department of Pediatrics, University of Washington, Seattle
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Doyle LW, Cheong JL, Hay S, Manley BJ, Halliday HL. Late (≥ 7 days) systemic postnatal corticosteroids for prevention of bronchopulmonary dysplasia in preterm infants. Cochrane Database Syst Rev 2021; 11:CD001145. [PMID: 34758507 PMCID: PMC8580679 DOI: 10.1002/14651858.cd001145.pub5] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Many infants born preterm develop bronchopulmonary dysplasia (BPD), with lung inflammation playing a role. Corticosteroids have powerful anti-inflammatory effects and have been used to treat individuals with established BPD. However, it is unclear whether any beneficial effects outweigh the adverse effects of these drugs. OBJECTIVES To examine the relative benefits and adverse effects of late (starting at seven or more days after birth) systemic postnatal corticosteroid treatment for preterm infants with evolving or established BPD. SEARCH METHODS We ran an updated search on 25 September 2020 of the following databases: CENTRAL via CRS Web and MEDLINE via OVID. We also searched clinical trials databases and reference lists of retrieved articles for randomised controlled trials (RCTs). We did not include quasi-RCTs. SELECTION CRITERIA We selected for inclusion in this review RCTs comparing systemic (intravenous or oral) postnatal corticosteroid treatment versus placebo or no treatment started at seven or more days after birth for preterm infants with evolving or established BPD. We did not include trials of inhaled corticosteroids. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. We extracted and analysed data regarding clinical outcomes that included mortality, BPD, and cerebral palsy. We used the GRADE approach to assess the certainty of evidence. MAIN RESULTS Use of the GRADE approach revealed that the certainty of evidence was high for most of the major outcomes considered, except for BPD at 36 weeks for all studies combined and for the dexamethasone subgroup, which were downgraded one level to moderate because of evidence of publication bias, and for the combined outcome of mortality or BPD at 36 weeks for all studies combined and for the dexamethasone subgroup, which were downgraded one level to moderate because of evidence of substantial heterogeneity. We included 23 RCTs (1817 infants); 21 RCTS (1382 infants) involved dexamethasone (one also included hydrocortisone) and two RCTs (435 infants) involved hydrocortisone only. The overall risk of bias of included studies was low; all were RCTs and most trials used rigorous methods. Late systemic corticosteroids overall reduce mortality to the latest reported age (risk ratio (RR) 0.81, 95% confidence interval (CI) 0.66 to 0.99; 21 studies, 1428 infants; high-certainty evidence). Within the subgroups by drug, neither dexamethasone (RR 0.85, 95% CI 0.66 to 1.11; 19 studies, 993 infants; high-certainty evidence) nor hydrocortisone (RR 0.74, 95% CI 0.54 to 1.02; 2 studies, 435 infants; high-certainty evidence) alone clearly reduce mortality to the latest reported age. We found little evidence for statistical heterogeneity between the dexamethasone and hydrocortisone subgroups (P = 0.51 for subgroup interaction). Late systemic corticosteroids overall probably reduce BPD at 36 weeks' postmenstrual age (PMA) (RR 0.89, 95% CI 0.80 to 0.99; 14 studies, 988 infants; moderate-certainty evidence). Dexamethasone probably reduces BPD at 36 weeks' PMA (RR 0.76, 95% CI 0.66 to 0.87; 12 studies, 553 infants; moderate-certainty evidence), but hydrocortisone does not (RR 1.10, 95% CI 0.92 to 1.31; 2 studies, 435 infants; high-certainty evidence) (P < 0.001 for subgroup interaction). Late systemic corticosteroids overall probably reduce the combined outcome of mortality or BPD at 36 weeks' PMA (RR 0.85, 95% CI 0.79 to 0.92; 14 studies, 988 infants; moderate-certainty evidence). Dexamethasone probably reduces the combined outcome of mortality or BPD at 36 weeks' PMA (RR 0.75, 95% CI 0.67 to 0.84; 12 studies, 553 infants; moderate-certainty evidence), but hydrocortisone does not (RR 0.98, 95% CI 0.88 to 1.09; 2 studies, 435 infants; high-certainty evidence) (P < 0.001 for subgroup interaction). Late systemic corticosteroids overall have little to no effect on cerebral palsy (RR 1.17, 95% CI 0.84 to 1.61; 17 studies, 1290 infants; high-certainty evidence). We found little evidence for statistical heterogeneity between the dexamethasone and hydrocortisone subgroups (P = 0.63 for subgroup interaction). Late systemic corticosteroids overall have little to no effect on the combined outcome of mortality or cerebral palsy (RR 0.90, 95% CI 0.76 to 1.06; 17 studies, 1290 infants; high-certainty evidence). We found little evidence for statistical heterogeneity between the dexamethasone and hydrocortisone subgroups (P = 0.42 for subgroup interaction). Studies had few participants who were not intubated at enrolment; hence, it is not possible to make any meaningful comments on the effectiveness of late corticosteroids in preventing BPD in non-intubated infants, including those who might in the present day be supported by non-invasive techniques such as nasal continuous positive airway pressure or high-flow nasal cannula oxygen/air mixture, but who might still be at high risk of later BPD. Results of two ongoing studies are awaited. AUTHORS' CONCLUSIONS Late systemic postnatal corticosteroid treatment (started at seven days or more after birth) reduces the risks of mortality and BPD, and the combined outcome of mortality or BPD, without evidence of increased cerebral palsy. However, the methodological quality of studies determining long-term outcomes is limited, and no studies were powered to detect increased rates of important adverse long-term neurodevelopmental outcomes. This review supports the use of late systemic corticosteroids for infants who cannot be weaned from mechanical ventilation. The role of late systemic corticosteroids for infants who are not intubated is unclear and needs further investigation. Longer-term follow-up into late childhood is vital for assessment of important outcomes that cannot be assessed in early childhood, such as effects of late systemic corticosteroid treatment on higher-order neurological functions, including cognitive function, executive function, academic performance, behaviour, mental health, motor function, and lung function. Further RCTs of late systemic corticosteroids should include longer-term survival free of neurodevelopmental disability as the primary outcome.
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Affiliation(s)
- Lex W Doyle
- Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Australia
- Clinical Sciences, Murdoch Children's Research Institute, Parkville, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Australia
- Newborn Research, The Royal Women's Hospital, Parkville, Australia
| | - Jeanie L Cheong
- Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Australia
- Clinical Sciences, Murdoch Children's Research Institute, Parkville, Australia
- Newborn Research, The Royal Women's Hospital, Parkville, Australia
| | - Susanne Hay
- Department of Neonatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Brett J Manley
- Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Australia
- Newborn Research, The Royal Women's Hospital, Parkville, Australia
| | - Henry L Halliday
- Retired Honorary Professor of Child Health, Queen's University Belfast, Belfast, UK
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Ramaswamy VV, Bandyopadhyay T, Nanda D, Bandiya P, Ahmed J, Garg A, Roehr CC, Nangia S. Assessment of Postnatal Corticosteroids for the Prevention of Bronchopulmonary Dysplasia in Preterm Neonates: A Systematic Review and Network Meta-analysis. JAMA Pediatr 2021; 175:e206826. [PMID: 33720274 PMCID: PMC7961472 DOI: 10.1001/jamapediatrics.2020.6826] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
IMPORTANCE The safety of postnatal corticosteroids used for prevention of bronchopulmonary dysplasia (BPD) in preterm neonates is a controversial matter, and a risk-benefit balance needs to be struck. OBJECTIVE To evaluate 14 corticosteroid regimens used to prevent BPD: moderately early-initiated, low cumulative dose of systemic dexamethasone (MoLdDX); moderately early-initiated, medium cumulative dose of systemic dexamethasone (MoMdDX); moderately early-initiated, high cumulative dose of systemic dexamethasone (MoHdDX); late-initiated, low cumulative dose of systemic dexamethasone (LaLdDX); late-initiated, medium cumulative dose of systemic dexamethasone (LaMdDX); late-initiated, high cumulative dose of systemic dexamethasone (LaHdDX); early-initiated systemic hydrocortisone (EHC); late-initiated systemic hydrocortisone (LHC); early-initiated inhaled budesonide (EIBUD); early-initiated inhaled beclomethasone (EIBEC); early-initiated inhaled fluticasone (EIFLUT); late-initiated inhaled budesonide (LIBUD); late-initiated inhaled beclomethasone (LIBEC); and intratracheal budesonide (ITBUD). DATA SOURCES PubMed, Cochrane Central Register of Controlled Trials (CENTRAL), Embase, World Health Organization's International Clinical Trials Registry Platform (ICTRP), and CINAHL were searched from inception through August 25, 2020. STUDY SELECTION In this systematic review and network meta-analysis, the randomized clinical trials selected included preterm neonates with a gestational age of 32 weeks or younger and for whom a corticosteroid regimen was initiated within 4 weeks of postnatal age. Peer-reviewed articles and abstracts in all languages were included. DATA EXTRACTION AND SYNTHESIS Two independent authors extracted data in duplicate. Network meta-analysis used a bayesian model. MAIN OUTCOMES AND MEASURES Primary combined outcome was BPD, defined as oxygen requirement at 36 weeks' postmenstrual age (PMA), or mortality at 36 weeks' PMA. The secondary outcomes included 15 safety outcomes. RESULTS A total of 62 studies involving 5559 neonates (mean [SD] gestational age, 26 [1] weeks) were included. Several regimens were associated with a decreased risk of BPD or mortality, including EHC (risk ratio [RR], 0.82; 95% credible interval [CrI], 0.68-0.97); EIFLUT (RR, 0.75; 95% CrI, 0.55-0.98); LaHdDX (RR, 0.70; 95% CrI, 0.54-0.87); MoHdDX (RR, 0.64; 95% CrI, 0.48-0.82); ITBUD (RR, 0.73; 95% CrI, 0.57-0.91); and MoMdDX (RR, 0.61; 95% CrI, 0.45-0.79). Surface under the cumulative ranking curve (SUCRA) value ranking showed that MoMdDX (SUCRA, 0.91), MoHdDX (SUCRA, 0.86), and LaHdDX (SUCRA, 0.76) were the 3 most beneficial interventions. ITBUD (RR, 4.36; 95% CrI, 1.04-12.90); LaHdDX (RR, 11.91; 95% CrI, 1.64-44.49); LaLdDX (RR, 6.33; 95% CrI, 1.62-18.56); MoHdDX (RR, 4.96; 95% CrI, 1.14-14.75); and MoMdDX (RR, 3.16; 95% CrI, 1.35-6.82) were associated with more successful extubation from invasive mechanical ventilation. EHC was associated with a higher risk of gastrointestinal perforation (RR, 2.77; 95% CrI, 1.09-9.32). MoMdDX showed a higher risk of hypertension (RR, 3.96; 95% CrI, 1.10-30.91). MoHdDX had a higher risk of hypertrophic cardiomyopathy (RR, 5.94; 95% CrI, 1.95-18.11). CONCLUSIONS AND RELEVANCE This study suggested that MoMdDX may be the most appropriate postnatal corticosteroid regimen for preventing BPD or mortality at a PMA of 36 weeks, albeit with a risk of hypertension. The quality of evidence was low.
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Affiliation(s)
- Viraraghavan Vadakkencherry Ramaswamy
- Newborn Services, John Radcliffe Hospital, Oxford University Hospitals National Health Service (NHS) Foundation Trust, Oxford, United Kingdom,Ankura Hospital for Women and Children, Hyderabad, India
| | - Tapas Bandyopadhyay
- Department of Neonatology, Dr Ram Manohar Lohia Hospital and Post Graduate Institute of Medical Education and Research, New Delhi, India
| | - Debasish Nanda
- Department of Neonatology, Institute of Medical Sciences and SUM Hospital, Orissa, India
| | - Prathik Bandiya
- Department of Neonatology, Indira Gandhi Institute of Child Health, Bengaluru, India
| | - Javed Ahmed
- Women’s Wellness and Research Centre, Hamad Medical Corporation, Doha, Qatar
| | - Anip Garg
- Department of Neonatology, James Cook University Hospital, Middlesbrough, United Kingdom
| | - Charles C. Roehr
- Newborn Services, John Radcliffe Hospital, Oxford University Hospitals National Health Service (NHS) Foundation Trust, Oxford, United Kingdom,National Perinatal Epidemiology Unit, Nuffield Department of Population Health, Medical Sciences Division, University of Oxford, Oxford, United Kingdom
| | - Sushma Nangia
- Department of Neonatology, Lady Hardinge Medical College, New Delhi, India
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Doyle LW, Cheong JL, Ehrenkranz RA, Halliday HL. Late (> 7 days) systemic postnatal corticosteroids for prevention of bronchopulmonary dysplasia in preterm infants. Cochrane Database Syst Rev 2017; 10:CD001145. [PMID: 29063594 PMCID: PMC6485440 DOI: 10.1002/14651858.cd001145.pub4] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Many preterm infants who survive go on to develop bronchopulmonary dysplasia, probably as the result of persistent inflammation in the lungs. Corticosteroids have powerful anti-inflammatory effects and have been used to treat individuals with established bronchopulmonary dysplasia. However, it is unclear whether any beneficial effects outweigh the adverse effects of these drugs. OBJECTIVES To examine the relative benefits and adverse effects of late systemic postnatal corticosteroid treatment (> 7 days) for preterm infants with evolving or established bronchopulmonary dysplasia. SEARCH METHODS For the 2017 update, we used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL; 2017, Issue 1); MEDLINE via PubMed (January 2013 to 21 February 2017); Embase (January 2013 to 21 February 2017); and the Cumulative Index to Nursing and Allied Health Literature (CINAHL; January 2013 to 21 February 2017). We also searched clinical trials databases, conference proceedings, and reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials. SELECTION CRITERIA We selected for inclusion in this review randomised controlled trials (RCTs) comparing systemic postnatal corticosteroid treatment versus placebo or nothing initiated more than seven days after birth for preterm infants with evolving or established bronchopulmonary dysplasia. DATA COLLECTION AND ANALYSIS We used the GRADE approach to assess the quality of evidence.We extracted and analysed data regarding clinical outcomes including mortality, bronchopulmonary dysplasia, death or bronchopulmonary dysplasia, failure to extubate, complications during primary hospitalisation, and long-term health outcomes. MAIN RESULTS Twenty-one RCTs enrolling a total of 1424 participants were eligible for this review. All were RCTs, but methods used for random allocation were not always clear. Allocation concealment, blinding of the intervention, and blinding of outcome assessments most often were satisfactory. Late steroid treatment was associated with a reduction in neonatal mortality (at 28 days) but no reduction in mortality at 36 weeks, at discharge, or at latest reported age. Benefits of delayed steroid treatment included reductions in failure to extubate by 3, 7, or 28 days; bronchopulmonary dysplasia both at 28 days of life and at 36 weeks' postmenstrual age; need for late rescue treatment with dexamethasone; discharge on home oxygen; and death or bronchopulmonary dysplasia both at 28 days of life and at 36 weeks' postmenstrual age. Data revealed a trend towards increased risk of infection and gastrointestinal bleeding but no increase in risk of necrotising enterocolitis. Short-term adverse affects included hyperglycaemia, glycosuria, and hypertension. Investigators reported an increase in severe retinopathy of prematurity but no significant increase in blindness. Trial results showed a trend towards reduction in severe intraventricular haemorrhage, but only five studies enrolling 247 infants reported this outcome. Trends towards an increase in cerebral palsy or abnormal neurological examination findings were partly offset by a trend in the opposite direction involving death before late follow-up. The combined rate of death or cerebral palsy was not significantly different between steroid and control groups. Major neurosensory disability and the combined rate of death or major neurosensory disability were not significantly different between steroid and control groups. There were no substantial differences between groups for other outcomes in later childhood, including respiratory health or function, blood pressure, or growth, although there were fewer participants with a clinically important reduction in forced expired volume in one second (FEV1) on respiratory function testing in the dexamethasone group.GRADE findings were high for all major outcomes considered, but review authors degraded the quality of evidence by one level because we found evidence of publication bias (bronchopulmonary dysplasia at 36 weeks). AUTHORS' CONCLUSIONS Benefits of late corticosteroid therapy may not outweigh actual or potential adverse effects. This review of postnatal systemic corticosteroid treatment for bronchopulmonary dysplasia initiated after seven days of age suggests that late therapy may reduce neonatal mortality without significantly increasing the risk of adverse long-term neurodevelopmental outcomes. However, the methodological quality of studies determining long-term outcomes is limited in some cases (some studies assessed surviving children only before school age, when some important neurological outcomes cannot be determined with certainty), and no studies were sufficiently powered to detect increased rates of important adverse long-term neurosensory outcomes. Evidence showing both benefits and harms of treatment and limitations of available evidence suggests that it may be prudent to reserve the use of late corticosteroids for infants who cannot be weaned from mechanical ventilation, and to minimise both dose and duration for any course of treatment.
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Affiliation(s)
- Lex W Doyle
- The University of MelbourneDepartment of Obstetrics and GynaecologyParkvilleVictoriaAustralia3052
| | - Jeanie L Cheong
- The Royal Women’s HospitalNewborn Research Centre and Neonatal ServicesLocked Bag 30020 Flemington RdMelbourneVictoriaAustralia3052
| | - Richard A Ehrenkranz
- Yale UniversityDepartment of PediatricsPO Box 208064333 Cedar StreetNew HavenConnecticutUSA06520‐8064
| | - Henry L Halliday
- Retired Honorary Professor of Child Health, Queen's University74 Deramore Park SouthBelfastNorthern IrelandUKBT9 5JY
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Onland W, De Jaegere APMC, Offringa M, van Kaam A. Systemic corticosteroid regimens for prevention of bronchopulmonary dysplasia in preterm infants. Cochrane Database Syst Rev 2017; 1:CD010941. [PMID: 28141913 PMCID: PMC6464844 DOI: 10.1002/14651858.cd010941.pub2] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Cochrane systematic reviews show that systemic postnatal corticosteroids reduce the risk of bronchopulmonary dysplasia (BPD) in preterm infants. However, corticosteroids have also been associated with an increased risk of neurodevelopmental impairment. It is unknown whether these beneficial and adverse effects are modulated by differences in corticosteroid treatment regimens. OBJECTIVES To assess the effects of different corticosteroid treatment regimens on mortality, pulmonary morbidity, and neurodevelopmental outcome in very low birth weight (VLBW) infants. SEARCH METHODS We used the standard search strategy of the Cochrane Neonatal Review group to search the Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 2) in the Cochrane Library (searched 21 March 2016), MEDLINE via PubMed (1966 to 21 March 2016), Embase (1980 to 21 March 2016), and CINAHL (1982 to 21 March 2016). We also searched clinical trials' databases, conference proceedings, and the reference lists of retrieved articles for randomized controlled trials. SELECTION CRITERIA Randomized controlled trials (RCTs) comparing two or more different treatment regimens of systemic postnatal corticosteroids in preterm infants at risk for BPD, as defined by the original trialists. Studies investigating one treatment regimen of systemic corticosteroids to a placebo or studies using inhalation corticosteroids were excluded. DATA COLLECTION AND ANALYSIS Two authors independently assessed eligibility and quality of trials and extracted data on study design, participant characteristics and the relevant outcomes. We asked the original investigators to verify if data extraction was correct and, if possible, to provide any missing data. The primary outcomes to be assessed were: mortality at 36 weeks' postmenstrual age (PMA) or at hospital discharge; BPD defined as oxygen dependency at 36 weeks' PMA; long-term neurodevelopmental sequelae, including cerebral palsy, measured by the Bayley Mental Developmental Index (MDI); and blindness or poor vision. Secondary outcomes were: duration of mechanical ventilation and failure to extubate at day 3 and 7 after initiating therapy; rescue treatment with corticosteroids outside the study period; and the incidence of hypertension, sepsis and hyperglycemia during hospitalizations. Data were analyzed using Review Manager 5 (RevMan 5). We used the GRADE approach to assess the quality of evidence. MAIN RESULTS Fourteen studies were included in this review. Only RCTs investigating dexamethasone were identified. Eight studies enrolling a total of 303 participants investigated the cumulative dosage administered; three studies contrasted a high versus a moderate and five studies a moderate versus a low cumulative dexamethasone dose.Analysis of the studies investigating a moderate dexamethasone dose versus a high-dosage regimen showed an increased risk of BPD (typical risk ratio (RR) 1.50, 95% confidence interval (CI) 1.01 to 2.22; typical risk difference (RD) 0.26, 95% CI 0.03 to 0.49; number needed to treat for an additional harmful outcome (NNTH) 4, 95% CI 1.9 to 23.3; I² = 0%, 2 studies, 55 infants) as well as an increased risk of abnormal neurodevelopmental outcome (typical RR 8.33, 95% CI 1.63 to 42.48; RD 0.30, 95% CI 0.14 to 0.46; NNTH 4, 95% CI 2.2 to 7.3; I² = 68%, 2 studies, 74 infants) when using a moderate cumulative-dosage regimen. The composite outcomes of death or BPD and death or abnormal neurodevelopmental outcome showed similar results although the former only reached borderline significance.There were no differences in outcomes between a moderate- and a low-dosage regimen.Four other studies enrolling 762 infants investigated early initiation of dexamethasone therapy versus a moderately early or delayed initiation and showed no significant differences in the primary outcomes. The two RCTs investigating a continuous versus a pulse dexamethasone regimen showed an increased risk of the combined outcome death or BPD when using the pulse therapy. Finally, two trials investigating a standard regimen versus a participant-individualized course of dexamethasone showed no difference in the primary outcome and long-term neurodevelopmental outcomes.The quality of evidence for all comparisons discussed above was assessed as low or very low, because the validity of all comparisons is hampered by small samples of randomized infants, heterogeneity in study population and design, non-protocolized use of 'rescue' corticosteroids and lack of long-term neurodevelopmental data in most studies. AUTHORS' CONCLUSIONS Despite the fact that some studies reported a modulating effect of treatment regimens in favor of higher-dosage regimens on the incidence of BPD and neurodevelopmental impairment, recommendations on the optimal type of corticosteroid, the optimal dosage, or the optimal timing of initiation for the prevention of BPD in preterm infants cannot be made based on current level of evidence. A well-designed large RCT is urgently needed to establish the optimal systemic postnatal corticosteroid dosage regimen.
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Affiliation(s)
- Wes Onland
- Emma Children's Hospital AMC, University of AmsterdamDepartment of NeonatologyMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Anne PMC De Jaegere
- Emma Children's Hospital AMC, University of AmsterdamDepartment of NeonatologyMeibergdreef 9AmsterdamNetherlands1105 AZ
| | - Martin Offringa
- Hospital for Sick ChildrenChild Health Evaluative Sciences555 University AvenueTorontoONCanadaM5G 1X8
| | - Anton van Kaam
- Emma Children's Hospital AMC, University of AmsterdamDepartment of NeonatologyMeibergdreef 9AmsterdamNetherlands1105 AZ
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Doyle LW, Ehrenkranz RA, Halliday HL. Late (> 7 days) postnatal corticosteroids for chronic lung disease in preterm infants. Cochrane Database Syst Rev 2014:CD001145. [PMID: 24825542 DOI: 10.1002/14651858.cd001145.pub3] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Many preterm infants who survive go on to develop chronic lung disease. This is probably due to persistent inflammation in the lungs. Corticosteroids have powerful anti-inflammatory effects and have been used to treat established chronic lung disease. However, it is unclear whether any beneficial effects outweigh the adverse effects of these drugs. OBJECTIVES To determine the relative benefits and adverse effects associated with late (> 7 days) postnatal systemic corticosteroid treatment compared with control (placebo or nothing) in the preterm infant with evolving or established chronic lung disease. SEARCH METHODS We sought randomised controlled trials (RCTs) of postnatal corticosteroid therapy from the Cochrane Central Register of Controlled Trials (CENTRAL 2013, Issue 8), MEDLINE (1966 through August 2013), handsearching paediatric and perinatal journals, and by examining previous review articles and information received from practising neonatologists. When possible, we contacted authors of all studies to confirm details of reported follow-up studies or to obtain any information about long-term follow-up where none had been reported. SELECTION CRITERIA We selected RCTs of postnatal corticosteroid treatment initiated after seven days after birth in preterm infants with evolving or established chronic lung disease for this review. DATA COLLECTION AND ANALYSIS We extracted and analysed data regarding clinical outcomes including mortality, chronic lung disease, death or chronic lung disease, failure to extubate, complications in the primary hospitalisation, and long-term health outcomes MAIN RESULTS Twenty-one RCTs enrolling a total of 1424 participants were eligible for this review. All were randomised controlled trials, but the methods for random allocation were not always clear. Allocation concealment, blinding of the intervention and blinding of the outcome assessments were mostly satisfactory. Late steroid treatment was associated with a reduction in neonatal mortality (at 28 days), but not mortality at discharge or latest reported age. Benefits of delayed steroid treatment included reductions in failure to extubate by three, seven or 28 days, chronic lung disease at both 28 days and 36 weeks' postmenstrual age, need for late rescue treatment with dexamethasone, discharge on home oxygen, and death or chronic lung disease at both 28 days and 36 weeks' postmenstrual age. There was a trend towards an increase in risk of infection and gastrointestinal bleeding, but not necrotising enterocolitis. Short-term adverse affects included hyperglycaemia, glycosuria and hypertension. There was an increase in severe retinopathy of prematurity, but no significant increase in blindness. There was a trend towards a reduction in severe intraventricular haemorrhage, but only 247 infants were enrolled in five studies reporting this outcome. The trends to an increase in cerebral palsy or abnormal neurological examination were partly offset by a trend in the opposite direction in death before late follow-up. The combined rate of death or cerebral palsy was not significantly different between steroid and control groups. Major neurosensory disability, and the combined rate of death or major neurosensory disability, were not significantly different between steroid and control groups. There were no substantial differences between groups for other outcomes in later childhood, including respiratory health or function, blood pressure or growth, although there were fewer with a clinically important reduction in the forced expired volume in one second (FEV1) on respiratory function testing. AUTHORS' CONCLUSIONS The benefits of late corticosteroid therapy may not outweigh actual or potential adverse effects. Although there continues to be concern about an increased incidence of adverse neurological outcomes in infants treated with postnatal steroids, this review of postnatal corticosteroid treatment for chronic lung disease initiated after seven days of age suggests that late therapy may reduce neonatal mortality without significantly increasing the risk of adverse long-term neurodevelopmental outcomes. However, the methodological quality of the studies determining the long-term outcome is limited in some cases; in some studies the surviving children have only been assessed before school age, when some important neurological outcomes cannot be determined with certainty, and no study was sufficiently powered to detect increased rates of important adverse long-term neurosensory outcomes. Given the evidence of both benefits and harms of treatment, and the limitations of the evidence at present, it appears prudent to reserve the use of late corticosteroids for infants who cannot be weaned from mechanical ventilation and to minimise the dose and duration of any course of treatment.
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Affiliation(s)
- Lex W Doyle
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, Victoria, Australia, 3052
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Chang YP. Evidence for adverse effect of perinatal glucocorticoid use on the developing brain. KOREAN JOURNAL OF PEDIATRICS 2014; 57:101-9. [PMID: 24778691 PMCID: PMC4000755 DOI: 10.3345/kjp.2014.57.3.101] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 02/04/2014] [Indexed: 11/27/2022]
Abstract
The use of glucocorticoids (GCs) in the perinatal period is suspected of being associated with adverse effects on long-term neurodevelopmental outcomes for preterm infants. Repeated administration of antenatal GCs to mothers at risk of preterm birth may adversely affect fetal growth and head circumference. Fetal exposure to excess GCs during critical periods of brain development may profoundly modify the limbic system (primarily the hippocampus), resulting in long-term effects on cognition, behavior, memory, co-ordination of the autonomic nervous system, and regulation of the endocrine system later in adult life. Postnatal GC treatment for chronic lung disease in premature infants, particularly involving the use of dexamethasone, has been shown to induce neurodevelopmental impairment and increases the risk of cerebral palsy. In contrast to studies involving postnatal dexamethasone, long-term follow-up studies for hydrocortisone therapy have not revealed adverse effects on neurodevelopmental outcomes. In experimental studies on animals, GCs has been shown to impair neurogenesis, and induce neuronal apoptosis in the immature brains of newborn animals. A recent study has demonstrated that dexamethasone-induced hypomyelination may result from the apoptotic degeneration of oligodendrocyte progenitors in the immature brain. Thus, based on clinical and experimental studies, there is enough evidence to advice caution regarding the use of GCs in the perinatal period; and moreover, the potential long-term effects of GCs on brain development need to be determined.
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Affiliation(s)
- Young Pyo Chang
- Department of Pediatrics, Dankook University College of Medicine, Cheonan, Korea
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Stark AR, Carlo WA, Vohr BR, Papile LA, Saha S, Bauer CR, Oh W, Shankaran S, Tyson JE, Wright LL, Poole WK, Das A, Stoll BJ, Fanaroff AA, Korones SB, Ehrenkranz RA, Stevenson DK, Peralta-Carcelen M, Wilson-Costello DE, Bada HS, Heyne RJ, Johnson YR, Lee KG, Steichen JJ. Death or neurodevelopmental impairment at 18 to 22 months corrected age in a randomized trial of early dexamethasone to prevent death or chronic lung disease in extremely low birth weight infants. J Pediatr 2014; 164:34-39.e2. [PMID: 23992673 PMCID: PMC4120744 DOI: 10.1016/j.jpeds.2013.07.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 05/28/2013] [Accepted: 07/18/2013] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To evaluate the incidence of death or neurodevelopmental impairment (NDI) at 18-22 months corrected age in subjects enrolled in a trial of early dexamethasone treatment to prevent death or chronic lung disease in extremely low birth weight infants. STUDY DESIGN Evaluation of infants at 18-22 months corrected age included anthropomorphic measurements, a standard neurological examination, and the Bayley Scales of Infant Development-II, including the Mental Developmental Index and the Psychomotor Developmental Index. NDI was defined as moderate or severe cerebral palsy, Mental Developmental Index or Psychomotor Developmental Index <70, blindness, or hearing impairment. RESULTS Death or NDI at 18-22 months corrected age was similar in the dexamethasone and placebo groups (65% vs 66%, P = .99 among those with known outcome). The proportion of survivors with NDI was also similar, as were mean values for weight, length, and head circumference and the proportion of infants with poor growth (50% vs 41%, P = .42 for weight less than 10th percentile); 49% of infants in the placebo group received treatment with corticosteroid compared with 32% in the dexamethasone group (P = .02). CONCLUSION The risk of death or NDI and rate of poor growth were high but similar in the dexamethasone and placebo groups. The lack of a discernible effect of early dexamethasone on neurodevelopmental outcome may be due to frequent clinical corticosteroid use in the placebo group.
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Affiliation(s)
- Ann R Stark
- Division of Neonatology, Vanderbilt University School of Medicine, Nashville, TN.
| | | | - Betty R Vohr
- Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI
| | - Lu Ann Papile
- Division of Neonatology, Indiana University School of Medicine, Indianapolis, IN
| | - Shampa Saha
- Statistics and Epidemiology Unit, RTI International, Research Triangle Park, NC
| | | | - William Oh
- Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI
| | | | - Jon E Tyson
- Department of Pediatrics, University of Texas Health Science Center, Houston, TX
| | - Linda L Wright
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD
| | - W Kenneth Poole
- Statistics and Epidemiology Unit, RTI International, Research Triangle Park, NC
| | - Abhik Das
- Statistics and Epidemiology Unit, RTI International, Rockville, MD
| | - Barbara J Stoll
- Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA
| | - Avroy A Fanaroff
- Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, OH
| | - Sheldon B Korones
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN
| | | | - David K Stevenson
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine and Lucille Packard Children's Hospital, Palo Alto, CA
| | | | - Deanne E Wilson-Costello
- Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, OH
| | - Henrietta S Bada
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN
| | - Roy J Heyne
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX
| | - Yvette R Johnson
- Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | | | - Jean J Steichen
- Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
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Hitzert MM, Roescher AM, Bos AF. The quality of general movements after treatment with low-dose dexamethasone in preterm infants at risk of bronchopulmonary dysplasia. Neonatology 2014; 106:222-8. [PMID: 25012880 DOI: 10.1159/000362919] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/11/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND High-dose dexamethasone (DXM) treatment of preterms at risk of bronchopulmonary dysplasia leads to a deterioration in quality of their general movements (GMs). It is unknown whether low-dose DXM affects GM quality similarly. OBJECTIVES To assess the effect of low-dose DXM treatment on the quality of GMs and fidgety GMs (FMs). METHODS A prospective study of preterms admitted to our NICU between 2010 and 2012, and treated with DXM (starting dose 0.25 mg/kg/day). We assessed GM/FM quality and calculated their motor optimality score (MOS) before, during, and after treatment up to 3 months postterm. Neurological follow-up was performed between 12 and 36 months. We related risk factors with infants' GM trajectories and MOSs. At 3 months we compared the MOSs of low-dose DXM infants and a historical cohort of infants treated with high-dose DXM or hydrocortisone. RESULTS 17 infants were included. GM/FM quality improved in 9 out of 13 initially abnormal infants (p = 0.004). Shorter periods of mechanical ventilation and higher birth weights were associated with better GM trajectories (p = 0.032 and p = 0.042, respectively). Infants starting treatment later had higher MOSs on day 7 (p = 0.047). Low-dose DXM infants had higher MOSs than high-dose DXM infants (β = -0.535; 95% CI -0.594 to -0.132; p = 0.003). Out of 17 infants, 2 died, 14 developed normally, and 1 developed with mild neurodevelopmental impairments. Infants whose GMs/FMs remained normal or improved had better outcomes than infants whose GMs/FMs remained abnormal (p = 0.019). CONCLUSIONS Out of the 17 infants treated with low-dose DXM, 2 died. Of the surviving infants, neurological functioning improved with the majority having normal neurodevelopment at the age of 12-36 months.
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Affiliation(s)
- Marrit M Hitzert
- Division of Neonatology, Department of Pediatrics, Beatrix Children's Hospital, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Li SX, Fujita Y, Zhang JC, Ren Q, Ishima T, Wu J, Hashimoto K. Role of the NMDA receptor in cognitive deficits, anxiety and depressive-like behavior in juvenile and adult mice after neonatal dexamethasone exposure. Neurobiol Dis 2013; 62:124-34. [PMID: 24051277 DOI: 10.1016/j.nbd.2013.09.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 08/15/2013] [Accepted: 09/07/2013] [Indexed: 01/31/2023] Open
Abstract
Postnatal dexamethasone (DEX) therapy has been used to treat or prevent chronic lung disease after premature births. However, there are many reports of long-term negative neurodevelopmental sequelae following this treatment. In contrast, hydrocortisone (HYD), which has fewer neurodevelopment adverse effects, is used as an alternative for DEX. In this study, we report that neonatal DEX exposure (days 1-3) caused alterations of amino acids affecting N-methyl-d-aspartate (NMDA) receptor neurotransmission in mouse brains. Neonatal DEX, but not HYD, exposure (days 1-3) significantly decreased the GluN2B subunit of NMDA receptor in the hippocampus at juvenile and adult stages. Mice treated with DEX showed cognitive deficits, as well as anxiety and depressive-like behavior at juvenile and adult stages. In contrast, mice treated with HYD (days 1-3) showed no behavioral abnormalities at these stages. In the DEX suppression test, plasma levels of corticosterone in mice exposed neonatally to DEX and HYD were significantly higher at juvenile, but not adult stages. Pretreatment with Ro 63-1908, an antagonist at GluN2B subunit, 30min before each injection of DEX, prevented cognitive deficits, as well as anxiety and depressive-like behavior in juvenile and adult mice. Interestingly, subsequent repeated (days 29-33) administration of Ro 63-1908 or L701324, an antagonist of the glycine modulatory site on the NMDA receptor, significantly suppressed behavioral abnormalities in juvenile and adult mice after neonatal DEX exposure. These results indicate that neonatal DEX, but not HYD, exposure produced behavioral abnormalities in juvenile and adult mice by altering glutamatergic neurotransmission via the NMDA receptor. The NMDA receptor antagonists may prevent or treat these DEX-induced neonatal behavioral abnormalities in later life.
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Affiliation(s)
- Su-Xia Li
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan; National Institute on Drug Dependence, Peking University, Beijing, China
| | - Yuko Fujita
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan
| | - Ji-Chun Zhang
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan
| | - Qian Ren
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan
| | - Tamaki Ishima
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan
| | - Jin Wu
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan.
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Postnatal corticosteroids for prevention and treatment of chronic lung disease in the preterm newborn. Int J Pediatr 2011; 2012:315642. [PMID: 22007245 PMCID: PMC3189570 DOI: 10.1155/2012/315642] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 07/25/2011] [Indexed: 11/22/2022] Open
Abstract
Despite significant progress in the treatment of preterm neonates, bronchopulmonary dysplasia (BPD) continues to be a major cause of neonatal morbidity. Affected infants suffered from long-term pulmonary and nonpulmonary sequel. The pulmonary sequels include reactive airway disease and asthma during childhood and adolescence. Nonpulmonary sequels include poor coordination and muscle tone, difficulty in walking, vision and hearing problems, delayed cognitive development, and poor academic achievement. As inflammation seems to be a primary mediator of injury in pathogenesis of BPD, role of steroids as antiinflammatory agent has been extensively studied and proven to be efficacious in management. However, evidence is insufficient to make a recommendation regarding other glucocorticoid doses and preparations. Numerous studies have been performed to investigate the effects of steroid. The purpose of this paper is to evaluate these studies in order to elucidate the beneficial and harmful effects of steroid on the prevention and treatment of BPD.
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Abstract
The purpose of this revised statement is to review current information on the use of postnatal glucocorticoids to prevent or treat bronchopulmonary dysplasia in the preterm infant and to make updated recommendations regarding their use. High-dose dexamethasone (0.5 mg/kg per day) does not seem to confer additional therapeutic benefit over lower doses and is not recommended. Evidence is insufficient to make a recommendation regarding other glucocorticoid doses and preparations. The clinician must use clinical judgment when attempting to balance the potential adverse effects of glucocorticoid treatment with those of bronchopulmonary dysplasia.
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Halliday HL, Ehrenkranz RA, Doyle LW. Late (>7 days) postnatal corticosteroids for chronic lung disease in preterm infants. Cochrane Database Syst Rev 2009:CD001145. [PMID: 19160189 DOI: 10.1002/14651858.cd001145.pub2] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Many preterm infants who survive go on to develop chronic lung disease (CLD). This is true in infants who have had respiratory distress syndrome (RDS) and in infants without RDS. This is probably due to persistence of inflammation in the lung. Corticosteroids have powerful anti-inflammatory effects and have been used to treat established CLD. However, it is unclear whether any beneficial effects outweigh the adverse effects of these drugs. OBJECTIVES To determine the effect of late (> 7 days) postnatal corticosteroid treatment compared to control (placebo or nothing) in the preterm infant with CLD. SEARCH STRATEGY Randomised controlled trials of postnatal corticosteroid therapy were sought from the Cochrane Central Register of Controlled Trials (The Cochrane Library), MEDLINE 1966 through May 2008, hand searching paediatric and perinatal journals, examining previous review articles and information received from practising neonatologists. When possible, authors of all studies were contacted to confirm details of reported follow-up studies or to obtain any information about long-term follow-up where none had been reported. SELECTION CRITERIA Randomised controlled trials (RCTs) of postnatal corticosteroid treatment initiated after seven days after birth in preterm infants with or developing CLD were selected for this review. DATA COLLECTION AND ANALYSIS Data regarding clinical outcomes including mortality, CLD (including need for home oxygen, or need for late rescue with corticosteroids), death or CLD, failure to extubate, complications in the primary hospitalisation (including infection, hyperglycaemia, glycosuria, hypertension, echodensities on ultrasound scan of brain, necrotising enterocolitis (NEC), gastrointestinal (GI) bleeding, GI perforation, intraventricular hemorrhage (IVH), severe retinopathy of prematurity (ROP), and long-term outcomes (including blindness, deafness, cerebral palsy and major neurosensory disability), were abstracted and analysed using RevMan 5 MAIN RESULTS Nineteen RCTs enrolling a total of 1345 participants were eligible for this review. Late steroid treatment was associated with a reduction in neonatal mortality (at 28 days) but not mortality at discharge or latest reported age. Beneficial effects of delayed steroid treatment included reductions in failure to extubate by 3, 7 or 28 days, CLD at both 28 days and 36 weeks' postmenstrual age (overall and in survivors), need for late rescue treatment with dexamethasone, discharge to home on oxygen therapy, and death or CLD at both 28 days and 36 weeks' postmenstrual age (PMA). There was a trend towards an increase in risk of infection and GI bleeding but not NEC. Short-term adverse affects included hyperglycaemia, glycosuria and hypertension. There was an increase in severe ROP (overall and a trend in survivors) but no significant increase in blindness. There was trend towards a reduction in severe IVH but only 247 infants were enrolled in five studies reporting this outcome. The trends to an increase in cerebral palsy or abnormal neurological examination were partly offset by a trend in the opposite direction in death before late follow-up. The combined rate of death or cerebral palsy was not significantly different between steroid and control groups. Major neurosensory disability, and the combined rate of death or major neurosensory disability, were not significantly different between steroid and control groups. There were no substantial differences between groups for other outcomes in later childhood, including respiratory health or function, blood pressure, or growth. AUTHORS' CONCLUSIONS The benefits of late corticosteroid therapy may not outweigh actual or potential adverse effects. Although there continues to be concern about an increased incidence of adverse neurological outcomes in infants treated with postnatal steroids (see also review of "Early postnatal corticosteroids for preventing chronic lung disease in preterm infants"), this review of postnatal corticosteroid treatment for CLD initiated after seven days of age suggests that late therapy may reduce neonatal mortality without significantly increasing the risk of adverse long-term neurodevelopmental outcomes. However, the methodological quality of the studies determining the long-term outcome is limited in some cases; in some studies the surviving children have only been assessed before school age when some important neurological outcomes cannot be determined with certainty, and no study was sufficiently powered to detect increased rates of important adverse long-term neurosensory outcomes. Given the evidence of both benefits and harms of treatment, and the limitations of the evidence at present, it appears prudent to reserve the use of late corticosteroids to infants who cannot be weaned from mechanical ventilation and to minimise the dose and duration of any course of treatment.
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Affiliation(s)
- Henry L Halliday
- Perinatal Room, Royal-Jubilee Maternity Service, Royal Maternity Hospital, Grosvenor Road, Belfast, Northern Ireland, UK, BT12 6BA.
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18
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Onland W, De Jaegere AP, Offringa M, van Kaam AH. Effects of higher versus lower dexamethasone doses on pulmonary and neurodevelopmental sequelae in preterm infants at risk for chronic lung disease: a meta-analysis. Pediatrics 2008; 122:92-101. [PMID: 18595991 DOI: 10.1542/peds.2007-2258] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Systemic postnatal dexamethasone treatment reduces the risk of chronic lung disease in preterm infants but also may be associated with increased risk of neurodevelopmental impairment. Because it is not known whether these effects are modulated by the cumulative dexamethasone dose, we systematically reviewed the available randomized evidence on the effects of lower versus higher cumulative dexamethasone doses, in terms of death, pulmonary morbidity, and neurodevelopmental outcomes, in preterm infants. METHODS Randomized, controlled trials comparing higher- versus lower-dosage dexamethasone regimens in ventilated preterm infants were identified by searching the main electronic databases, references from relevant studies, and abstracts from the Societies for Pediatric Research (from 1990 onward). Eligibility and quality of trials were assessed, and data on study design, patient characteristics, and relevant outcomes were extracted. RESULTS Six studies that enrolled a total of 209 participants were included; 2 studies contrasted cumulative dexamethasone doses in the higher ranges (>2.7 mg/kg in the higher-dosage regimen) and 4 in the lower ranges (<or=2.7 mg/kg in the higher-dosage regimen). Meta-analysis revealed no effect of dexamethasone dose on rates of death and neurodevelopmental sequelae in these 2 subgroups. Subgroup analysis of the studies contrasting dexamethasone doses in the higher ranges showed that the higher dose of dexamethasone was more effective in reducing the occurrence of chronic lung disease than was the lower dose. Interpretation of these data was hampered by the small samples of randomly assigned children, heterogeneity of study populations and designs, use of late rescue glucocorticoids, and lack of long-term neurodevelopmental data in some studies. CONCLUSIONS Recommendations for optimal dexamethasone doses for preterm infants at risk for chronic lung disease cannot be based on current evidence. A well-designed, large, randomized, controlled trial is urgently needed to establish the optimal dexamethasone dosage regimen.
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Affiliation(s)
- Wes Onland
- Department of Neonatology (Room H3-150), Emma Children's Hospital AMC, PO Box 22700, 1100 DD Amsterdam, Netherlands.
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Washburn LK, Nixon PA, O'Shea TM. Follow-up of a randomized, placebo-controlled trial of postnatal dexamethasone: blood pressure and anthropometric measurements at school age. Pediatrics 2006; 118:1592-9. [PMID: 17015551 DOI: 10.1542/peds.2006-0973] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE The purpose of this work was to evaluate the effects of a 42-day tapering course of dexamethasone on blood pressure and anthropometric measurements in school-age children who were born with very low birth weight. METHODS Sixty-eight children, who as neonates participated in a randomized placebo-controlled trial of a 42-day tapering course of dexamethasone (n = 38, dexamethasone; n = 30, placebo) to facilitate weaning from the ventilator, were seen at a median of 9 years of age. Participants underwent measurements of systolic blood pressure, diastolic blood pressure, mid-arm circumference, triceps skinfold thickness, height, and weight. Mann-Whitney U tests were used to compare groups, and Spearman coefficients were used to examine correlations between variables. RESULTS Comparing dexamethasone- and placebo-treated children, we found no differences in systolic blood pressure, mid-arm circumference, triceps skinfold thickness, height, weight, or body mass index. Twenty-nine percent of all subjects had systolic blood pressure and/or diastolic blood pressure > or = 90th percentile for age and gender. Thirty percent of all subjects had body mass index > or = 85th percentile for age and gender. CONCLUSIONS In a group of preterm very low birth-weight infants at high risk for chronic lung disease, we found no effects of dexamethasone on blood pressure or anthropometric measurements at 8 to 11 years of age. Of concern is that a high proportion in this sample had blood pressure > or = 90th percentile and/or body mass index > or = 85th percentile.
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Affiliation(s)
- Lisa K Washburn
- Department of Pediatrics, Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157, USA.
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Kutschera J, Tomaselli J, Maurer U, Mueller W, Urlesberger B. Minor neurological dysfunction, cognitive development, and somatic development at the age of 3 to 7 years after dexamethasone treatment in very-low birth-weight infants. Early Hum Dev 2005; 81:281-7. [PMID: 15814210 DOI: 10.1016/j.earlhumdev.2004.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2003] [Revised: 07/29/2004] [Accepted: 07/29/2004] [Indexed: 11/12/2022]
Abstract
The objective of this study was to assess minor neurological dysfunction, cognitive development, and somatic development after dexamethasone therapy in very-low-birthweight infants. Thirty-three children after dexamethasone treatment were matched to 33 children without dexamethasone treatment. Data were assessed at the age of 3-7 years. Dexamethasone was started between the 7th and the 28th day of life over 7 days with a total dose of 2.35 mg/kg/day. Exclusion criteria were asphyxia, malformations, major surgical interventions, small for gestational age, intraventricular haemorrhage grades III and IV, periventricular leukomalacia, and severe psychomotor retardation. Each child was examined by a neuropediatrician for minor neurological dysfunctions and tested by a psychologist for cognitive development with a Kaufman Assessment Battery for Children and a Draw-a-Man Test. There were no differences in demographic data, growth, and socio-economic status between the two groups. Fine motor skills and gross motor function were significantly better in the control group (p<0.01). In the Draw-a-Man Test, the control group showed better results (p<0.001). There were no differences in development of speech, social development, and the Kaufman Assessment Battery for Children. After dexamethasone treatment, children showed a higher rate of minor neurological dysfunctions. Neurological development was affected even without neurological diagnosis. Further long-term follow-up studies will be necessary to fully evaluate the impact of dexamethasone on neurological and cognitive development.
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Affiliation(s)
- J Kutschera
- Department of Paediatrics, University Hospital, Auenbruggerplatz 30, Graz A-8036, Austria.
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Odd DE, Armstrong DL, Teele RL, Kuschel CA, Harding JE. A randomized trial of two dexamethasone regimens to reduce side-effects in infants treated for chronic lung disease of prematurity. J Paediatr Child Health 2004; 40:282-9. [PMID: 15151582 DOI: 10.1111/j.1440-1754.2004.00364.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Dexamethasone has been widely used to reduce the incidence of chronic lung disease in preterm infants. However side-effects are common, and the ideal dose of dexamethasone has not been identified. We aimed to determine whether an individualized course of dexamethasone given to preterm babies at risk of chronic lung disease reduced the total dose of dexamethasone administered and reduced side-effects compared with a standard 42-day course. METHODS Thirty-three infants in a regional neonatal unit with a birthweight of < or =1250 g who required mechanical ventilation at 7 days of age were randomly assigned to a 42-day course of dexamethasone or an individualized course tailored to their respiratory status. The primary outcome was linear growth at 36 weeks corrected gestational age. RESULTS Infants in the individualized course received a 40% lower total dose of dexamethasone. However, there was no difference between the two groups in linear growth or in the incidence of any other side-effects of treatment. There was also no difference in respiratory status or neurodevelopmental outcome. CONCLUSION The individualized course of dexamethasone used in this study reduced the total dose of dexamethasone administered but did not significantly reduce side-effects of treatment or alter outcome in infants at risk of chronic lung disease.
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Affiliation(s)
- D E Odd
- Newborn Services, Department of Paediatrics, University of Auckland, Auckland, New Zealand
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22
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Yeh TF, Lin YJ, Lin HC, Huang CC, Hsieh WS, Lin CH, Tsai CH. Outcomes at school age after postnatal dexamethasone therapy for lung disease of prematurity. N Engl J Med 2004; 350:1304-13. [PMID: 15044641 DOI: 10.1056/nejmoa032089] [Citation(s) in RCA: 390] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND We studied the outcomes at school age in children who had participated in a double-blind, placebo-controlled trial of early postnatal dexamethasone therapy (initiated within 12 hours after birth) for the prevention of chronic lung disease of prematurity. METHODS Of the 262 children included in the initial study, 159 lived to school age. Of these children, 146 (72 in the dexamethasone group and 74 in the control group) were included in our study. All the infants had had severe respiratory distress syndrome requiring mechanical ventilation shortly after birth. In the dexamethasone group, 0.25 mg of dexamethasone per kilogram of body weight was given intravenously every 12 hours for one week, and then the dose was tapered. We evaluated the children's growth, neurologic and motor function, cognition, and school performance. RESULTS Children in the dexamethasone group were significantly shorter than the controls (P=0.03 for boys, P=0.01 for girls, and P=0.03 for all children) and had a significantly smaller head circumference (P=0.04). Children in the dexamethasone group had significantly poorer motor skills (P<0.001), motor coordination (P<0.001), and visual-motor integration (P=0.02). As compared with the controls, children in the dexamethasone group also had significantly lower full IQ scores (mean [+/-SD], 78.2+/-15.0 vs. 84.4+/-12.6; P=0.008), verbal IQ scores (84.1+/-13.2 vs. 88.4+/-11.8, P=0.04), and performance IQ scores (76.5+/-14.6 vs. 84.5+/-12.7, P=0.001). The frequency of clinically significant disabilities was higher among children in the dexamethasone group than among controls (28 of 72 [39 percent] vs. 16 of 74 [22 percent], P=0.04). CONCLUSIONS Early postnatal dexamethasone therapy should not be recommended for the routine prevention or treatment of chronic lung disease, because it leads to substantial adverse effects on neuromotor and cognitive function at school age.
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Affiliation(s)
- Tsu F Yeh
- Department of Pediatrics, College of Medicine, China Medical University, Taichung, Taiwan.
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