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  • 1
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    Mortality, In-Hospital Morbidity, Care Practices, and 2-Year Outcomes for Extremely Preterm Infants in the US, 2013-2018
    American Medical Association (AMA) ; 2022
    In:  JAMA Vol. 327, No. 3 ( 2022-01-18), p. 248-
    Details
    In: JAMA, American Medical Association (AMA), Vol. 327, No. 3 ( 2022-01-18), p. 248-
    Type of Medium: Online Resource
    ISSN: 0098-7484
    URL: Article
    DOI: 10.1001/jama.2021.23580
    RVK:
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    Language: English
    Publisher: American Medical Association (AMA)
    Publication Date: 2022
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  • 2
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    Use of term reference infants in assessing the developmental outcome of extremely preterm infants: lessons learned in a multicenter study
    Springer Science and Business Media LLC ; 2023
    In:  Journal of Perinatology
    Details
    In: Journal of Perinatology, Springer Science and Business Media LLC
    Abstract: Extremely preterm (EP) impairment rates are likely underestimated using the Bayley III norm-based thresholds scores and may be better assessed relative to concurrent healthy term reference (TR) infants born in the same hospital. Study design Blinded, certified examiners in the Neonatal Research Network (NRN) evaluated EP survivors and a sample of healthy TR infants recruited near the 2-year assessment age. Results We assessed 1452 EP infants and 183 TR infants. TR-based thresholds showed higher overall EP impairment than Bayley norm-based thresholds (O.R. = 1.86; [95% CI 1.56–2.23], especially for severe impairment (36% vs. 24%; p  ≤ 0.001). Difficulty recruiting TR patients at 2 years extended the study by 14 months and affected their demographics. Conclusion Impairment rates among EP infants appear to be substantially underestimated from Bayley III norms. These rates may be best assessed by comparison with healthy term infants followed with minimal attrition from birth in the same centers. ClinicalTrials.gov ID Term Reference (under the Generic Database Study): NCT00063063
    Type of Medium: Online Resource
    ISSN: 0743-8346 , 1476-5543
    URL: Article
    DOI: 10.1038/s41372-023-01729-x
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2007668-X
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  • 3
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    Social Determinants of Health and Redirection of Care for Infants Born Extremely Preterm
    American Medical Association (AMA) ; 2024
    In:  JAMA Pediatrics
    Details
    In: JAMA Pediatrics, American Medical Association (AMA)
    Abstract: Redirection of care refers to withdrawal, withholding, or limiting escalation of treatment. Whether maternal social determinants of health are associated with redirection of care discussions merits understanding. Objective To examine associations between maternal social determinants of health and redirection of care discussions for infants born extremely preterm. Design, Setting, and Participants This is a retrospective analysis of a prospective cohort of infants born at less than 29 weeks’ gestation between April 2011 and December 2020 at 19 National Institute of Child Health and Human Development Neonatal Research Network centers in the US. Follow-up occurred between January 2013 and October 2023. Included infants received active treatment at birth and had mothers who identified as Black or White. Race was limited to Black and White based on service disparities between these groups and limited sample size for other races. Maternal social determinant of health exposures were education level (high school nongraduate or graduate), insurance type (public/none or private), race (Black or White), and ethnicity (Hispanic or non-Hispanic). Main Outcomes and Measures The primary outcome was documented discussion about redirection of infant care. Secondary outcomes included subsequent redirection of care occurrence and, for those born at less than 27 weeks’ gestation, death and neurodevelopmental impairment at 22 to 26 months’ corrected age. Results Of the 15 629 infants (mean [SD] gestational age, 26 [2] weeks; 7961 [51%] male) from 13 643 mothers, 2324 (15%) had documented redirection of care discussions. In unadjusted comparisons, there was no significant difference in the percentage of infants with redirection of care discussions by race (Black, 1004/6793 [15%] ; White, 1320/8836 [15%]) or ethnicity (Hispanic, 291/2105 [14%] ; non-Hispanic, 2020/13 408 [15%]). However, after controlling for maternal and neonatal factors, infants whose mothers identified as Black or as Hispanic were less likely to have documented redirection of care discussions than infants whose mothers identified as White (Black vs White adjusted odds ratio [aOR], 0.84; 95% CI, 0.75-0.96) or as non-Hispanic (Hispanic vs non-Hispanic aOR, 0.72; 95% CI, 0.60-0.87). Redirection of care discussion occurrence did not differ by maternal education level or insurance type. Conclusions and Relevance For infants born extremely preterm, redirection of care discussions occurred less often for Black and Hispanic infants than for White and non-Hispanic infants. It is important to explore the possible reasons underlying these differences.
    Type of Medium: Online Resource
    ISSN: 2168-6203
    URL: Article
    DOI: 10.1001/jamapediatrics.2024.0125
    Language: English
    Publisher: American Medical Association (AMA)
    Publication Date: 2024
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  • 4
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    Assessment of Corticosteroid Therapy and Death or Disability According to Pretreatment Risk of Death or Bronchopulmonary Dysplasia in Extremely Preterm Infants
    American Medical Association (AMA) ; 2023
    In:  JAMA Network Open Vol. 6, No. 5 ( 2023-05-08), p. e2312277-
    Details
    In: JAMA Network Open, American Medical Association (AMA), Vol. 6, No. 5 ( 2023-05-08), p. e2312277-
    Abstract: Meta-analyses suggest that corticosteroids may be associated with increased survival without cerebral palsy in infants at high risk of bronchopulmonary dysplasia (BPD) but are associated with adverse neurologic outcomes in low-risk infants. Whether this association exists in contemporary practice is uncertain because most randomized clinical trials administered corticosteroids earlier and at higher doses than currently recommended. Objective To evaluate whether the pretreatment risk of death or grade 2 or 3 BPD at 36 weeks’ postmenstrual age modified the association between postnatal corticosteroid therapy and death or disability at 2 years’ corrected age in extremely preterm infants. Design, Setting, and Participants This cohort study analyzed data on 482 matched pairs of infants from 45 participating US hospitals in the National Institute of Child Health and Human Development Neonatal Research Network Generic Database (GDB). Infants were included in the cohort if they were born at less than 27 weeks’ gestation between April 1, 2011, and March 31, 2017; survived the first 7 postnatal days; and had 2-year death or developmental follow-up data collected between January 2013 and December 2019. Corticosteroid-treated infants were propensity score matched with untreated controls. Data were analyzed from September 1, 2019, to November 30, 2022. Exposure Systemic corticosteroid therapy to prevent BPD that was initiated between day 8 and day 42 after birth. Main Outcomes and Measures The primary outcome was death or moderate to severe neurodevelopmental impairment at 2 years’ corrected age. The secondary outcome was death or moderate to severe cerebral palsy at 2 years’ corrected age. Results A total of 482 matched pairs of infants (mean [SD] gestational age, 24.1 [1.1] weeks]; 270 males [56.0%] ) were included from 656 corticosteroid-treated infants and 2796 potential controls. Most treated infants (363 [75.3%]) received dexamethasone. The risk of death or disability associated with corticosteroid therapy was inversely associated with the estimated pretreatment probability of death or grade 2 or 3 BPD. The risk difference for death or neurodevelopmental impairment associated with corticosteroids decreased by 2.7% (95% CI, 1.9%-3.5%) for each 10% increase in the pretreatment risk of death or grade 2 or 3 BPD. This risk transitioned from estimated net harm to benefit when the pretreatment risk of death or grade 2 or 3 BPD exceeded 53% (95% CI, 44%-61%). For death or cerebral palsy, the risk difference decreased by 3.6% (95% CI, 2.9%-4.4%) for each 10% increase in the risk of death or grade 2 or 3 BPD and transitioned from estimated net harm to benefit at a pretreatment risk of 40% (95% CI, 33%-46%). Conclusions and Relevance Results of this study suggested that corticosteroids were associated with a reduced risk of death or disability in infants at moderate to high pretreatment risk of death or grade 2 or 3 BPD but with possible harm in infants at lower risk.
    Type of Medium: Online Resource
    ISSN: 2574-3805
    URL: Article
    DOI: 10.1001/jamanetworkopen.2023.12277
    Language: English
    Publisher: American Medical Association (AMA)
    Publication Date: 2023
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  • 5
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    Association of Antenatal Steroid Exposure at 21 to 22 Weeks of Gestation With Neonatal Survival and Survival Without Morbidities
    American Medical Association (AMA) ; 2022
    In:  JAMA Network Open Vol. 5, No. 9 ( 2022-09-26), p. e2233331-
    Details
    In: JAMA Network Open, American Medical Association (AMA), Vol. 5, No. 9 ( 2022-09-26), p. e2233331-
    Abstract: The provision of antenatal corticosteroids to pregnant patients at gestational age (GA) 22 6/7 weeks or less remains controversial and lacks support from randomized clinical trials. Objective To compare rates of survival and survival without major morbidities among infants born at GA 22 0/7 to 23 6/7 weeks after exposure to antenatal steroids at 22 6/7 weeks’ gestation or less vs no exposure to antenatal steroids. Design, Setting, and Participants This cohort study enrolled infants born at GA 22 0/7 to 23 6/7 weeks between January 1, 2016, and December 31, 2019, at centers in the National Institute of Child Health and Human Development Neonatal Research Network. Infants who did not receive intensive care and infants with antenatal steroid exposure after GA 22 6/7 weeks were excluded. Exposure Infants were classified as having no, partial, or complete exposure to antenatal steroids. Main Outcomes and Measures The primary outcome was survival to discharge. The main secondary outcome was survival without major neonatal morbidity. The associations of differential exposures to antenatal steroids with outcomes were evaluated using logistic regression, adjusting for GA, sex, race, maternal education, small for GA status, mode of delivery, multiple birth, prolonged rupture of membranes, year of birth, and Neonatal Research Network center. Results A total of 431 infants (mean [SD] GA, 22.6 [0.5] weeks; 232 [53.8%] boys) were included, with 110 infants (25.5%) receiving no antenatal steroids, 80 infants (18.6%) receiving partial antenatal steroids, and 241 infants (55.9%) receiving complete antenatal steroids. Seventeen infants were exposed to antenatal steroids at GA 21 weeks. Among infants exposed to complete antenatal steroids, 130 (53.9%) survived to discharge, compared with 30 infants (37.5%) with partial antenatal steroid exposure and 239 infants (35.5%) with no antenatal steroids. Infants born after complete antenatal steroid exposure, compared with those without antenatal steroid exposure, were more likely to survive to discharge (adjusted odds ratio [aOR] , 1.95 [95% CI, 1.07-3.56]) and to survive without major morbidity (aOR, 2.74 [95% CI, 1.19-6.30] ). Conclusions and Relevance In this retrospective cohort study, among infants born between GA 22 0/7 and 23 6/7 weeks who received intensive care, exposure to a complete course of antenatal steroids at GA 22 6/7 weeks or less was independently associated with greater odds of survival and survival without major morbidity. These data suggest that the use of antenatal steroids in patients at GA 22 6/7 weeks or less could be beneficial when active treatment is considered.
    Type of Medium: Online Resource
    ISSN: 2574-3805
    URL: Article
    DOI: 10.1001/jamanetworkopen.2022.33331
    Language: English
    Publisher: American Medical Association (AMA)
    Publication Date: 2022
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  • 6
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    Incidence of and Neurodevelopmental Outcomes After Late-Onset Meningitis Among Children Born Extremely Preterm
    American Medical Association (AMA) ; 2022
    In:  JAMA Network Open Vol. 5, No. 12 ( 2022-12-08), p. e2245826-
    Details
    In: JAMA Network Open, American Medical Association (AMA), Vol. 5, No. 12 ( 2022-12-08), p. e2245826-
    Abstract: Late-onset meningitis (LOM) has been associated with adverse neurodevelopmental outcomes in children born extremely preterm. Objective To report the incidence of LOM during birth hospitalization and neurodevelopmental outcomes at 18 to 26 months’ corrected age. Design, Setting, and Participants This cohort study is a secondary analysis of a multicenter prospective cohort of children born at 22 to 26 weeks’ gestation between 2003 and 2017 with follow-up from 2004 to 2021. The study was conducted at 25 Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network centers. Exposures Culture-confirmed LOM. Main Outcomes and Measures Incidence and microbiology of LOM (2003-2017); lumbar puncture (LP) performance in late-onset sepsis (LOS) evaluations (2011-2017); composite outcome of death or neurodevelopmental impairment (NDI; 2004-2021). Results Among 13 372 infants (median [IQR] gestational age, 25.4 [24.4-26.1] weeks; 6864 [51%] boys), LOM was diagnosed in 167 (1%); LOS without LOM in 4564 (34%); and neither LOS nor LOM in 8641 (65%). The observed incidence of LOM decreased from 2% (95% CI, 1%-3%) in 2003 to 0.4% (95% CI, 0.7%-1.0%) in 2017 ( P   & amp;lt; .001). LP performance in LOS evaluations decreased from 36% (95% CI, 33%-40%) in 2011 to 24% (95% CI, 21%-27%) in 2017 ( P   & amp;lt; .001). Among infants with culture-confirmed LOS, LP performance decreased from 58% (95% CI, 51%-65%) to 45% (95% CI, 38%-51%; P  = .008). LP performance varied by center among all LOS evaluations (10%-59%, P   & amp;lt; .001) and among those with culture-confirmed LOS (23%-79%, P   & amp;lt; .001). LOM occurred in the absence of concurrent LOS in 27 of 167 cases (16%). The most common LOM isolates were coagulase-negative Staphylococcus (98 [59%]), Candida albicans (38 [23%]), and Escherichia coli (27 [16%]). Death or NDI occurred in 22 of 46 children (48%) with LOM due to coagulase-negative Staphylococcus , 43 of 67 (64%) due to all other bacterial pathogens, and 26 of 33 (79%) due to fungal pathogens. The adjusted relative risk of death or NDI was increased among children with LOM (aOR, 1.53; 95% CI, 1.04-2.25) and among those with LOS without LOM (aOR, 1.41; 95% CI, 1.29-1.54) compared with children with neither infection. Conclusions and Relevance In this cohort study, LP was performed with decreasing frequency, and the observed incidence of LOM also decreased. Both LOM and LOS were associated with increased risk of death or NDI; risk varied by LOM pathogen. The full association of LOM with outcomes of children born extremely preterm may be underestimated by current diagnostic practices.
    Type of Medium: Online Resource
    ISSN: 2574-3805
    URL: Article
    DOI: 10.1001/jamanetworkopen.2022.45826
    Language: English
    Publisher: American Medical Association (AMA)
    Publication Date: 2022
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  • 7
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    Association Between Increased Seizures During Rewarming After Hypothermia for Neonatal Hypoxic Ischemic Encephalopathy and Abnormal Neurodevelopmental Outcomes at 2-Year Follow-up : A Nested Multisite Cohort Study
    American Medical Association (AMA) ; 2021
    In:  JAMA Neurology Vol. 78, No. 12 ( 2021-12-01), p. 1484-
    Details
    In: JAMA Neurology, American Medical Association (AMA), Vol. 78, No. 12 ( 2021-12-01), p. 1484-
    Type of Medium: Online Resource
    ISSN: 2168-6149
    URL: Article
    DOI: 10.1001/jamaneurol.2021.3723
    Language: English
    Publisher: American Medical Association (AMA)
    Publication Date: 2021
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  • 8
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    Early Onset Neonatal Sepsis: The Burden of Group B Streptococcal and E. coli Disease Continues
    American Academy of Pediatrics (AAP) ; 2011
    In:  Pediatrics Vol. 127, No. 5 ( 2011-05-01), p. 817-826
    Details
    In: Pediatrics, American Academy of Pediatrics (AAP), Vol. 127, No. 5 ( 2011-05-01), p. 817-826
    Abstract: Guidelines for prevention of group B streptococcal (GBS) infection have successfully reduced early onset (EO) GBS disease. Study results suggest that Escherichia coli is an important EO pathogen. OBJECTIVE: To determine EO infection rates, pathogens, morbidity, and mortality in a national network of neonatal centers. METHODS: Infants with EO infection were identified by prospective surveillance at Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Network centers. Infection was defined by positive culture results for blood and cerebrospinal fluid obtained from infants aged ≤72 hours plus treatment with antibiotic therapy for ≥5 days. Mother and infant characteristics, treatments, and outcomes were studied. Numbers of cases and total live births (LBs) were used to calculate incidence. RESULTS: Among 396 586 LBs (2006–2009), 389 infants developed EO infection (0.98 cases per 1000 LBs). Infection rates increased with decreasing birth weight. GBS (43%, 0.41 per 1000 LBs) and E coli (29%, 0.28 per 1000 LBs) were most frequently isolated. Most infants with GBS were term (73%); 81% with E coli were preterm. Mothers of 67% of infected term and 58% of infected preterm infants were screened for GBS, and results were positive for 25% of those mothers. Only 76% of mothers with GBS colonization received intrapartum chemoprophylaxis. Although 77% of infected infants required intensive care, 20% of term infants were treated in the normal newborn nursery. Sixteen percent of infected infants died, most commonly with E coli infection (33%). CONCLUSION: In the era of intrapartum chemoprophylaxis to reduce GBS, rates of EO infection have declined but reflect a continued burden of disease. GBS remains the most frequent pathogen in term infants, and E coli the most significant pathogen in preterm infants. Missed opportunities for GBS prevention continue. Prevention of E coli sepsis, especially among preterm infants, remains a challenge.
    Type of Medium: Online Resource
    ISSN: 0031-4005 , 1098-4275
    URL: Article
    DOI: 10.1542/peds.2010-2217
    Language: English
    Publisher: American Academy of Pediatrics (AAP)
    Publication Date: 2011
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  • 9
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    Use of Antihypotensive Therapies in Extremely Preterm Infants
    American Academy of Pediatrics (AAP) ; 2013
    In:  Pediatrics Vol. 131, No. 6 ( 2013-06-01), p. e1865-e1873
    Details
    In: Pediatrics, American Academy of Pediatrics (AAP), Vol. 131, No. 6 ( 2013-06-01), p. e1865-e1873
    Abstract: To investigate the relationships among blood pressure (BP) values, antihypotensive therapies, and in-hospital outcomes to identify a BP threshold below which antihypotensive therapies may be beneficial. METHODS: Prospective observational study of infants 230/7 to 266/7 weeks’ gestational age. Hourly BP values and antihypotensive therapy use in the first 24 hours were recorded. Low BP was investigated by using 15 definitions. Outcomes were examined by using regression analysis controlling for gestational age, the number of low BP values, and illness severity. RESULTS: Of 367 infants enrolled, 203 (55%) received at least 1 antihypotensive therapy. Treated infants were more likely to have low BP by any definition (P & lt; .001), but for the 15 definitions of low BP investigated, therapy was not prescribed to 3% to 49% of infants with low BP and, paradoxically, was administered to 28% to 41% of infants without low BP. Treated infants were more likely than untreated infants to develop severe retinopathy of prematurity (15% vs 8%, P = .03) or severe intraventricular hemorrhage (22% vs 11%, P & lt; .01) and less likely to survive (67% vs 78%, P = .02). However, with regression analysis, there were no significant differences between groups in survival or in-hospital morbidity rates. CONCLUSIONS: Factors other than BP contributed to the decision to use antihypotensive therapies. Infant outcomes were not improved with antihypotensive therapy for any of the 15 definitions of low BP investigated.
    Type of Medium: Online Resource
    ISSN: 0031-4005 , 1098-4275
    URL: Article
    DOI: 10.1542/peds.2012-2779
    Language: English
    Publisher: American Academy of Pediatrics (AAP)
    Publication Date: 2013
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  • 10
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    Individual and Center-Level Factors Affecting Mortality Among Extremely Low Birth Weight Infants
    American Academy of Pediatrics (AAP) ; 2013
    In:  Pediatrics Vol. 132, No. 1 ( 2013-07-01), p. e175-e184
    Details
    In: Pediatrics, American Academy of Pediatrics (AAP), Vol. 132, No. 1 ( 2013-07-01), p. e175-e184
    Abstract: To examine factors affecting center differences in mortality for extremely low birth weight (ELBW) infants. METHODS: We analyzed data for 5418 ELBW infants born at 16 Neonatal Research Network centers during 2006–2009. The primary outcomes of early mortality (≤12 hours after birth) and in-hospital mortality were assessed by using multilevel hierarchical models. Models were developed to investigate associations of center rates of selected interventions with mortality while adjusting for patient-level risk factors. These analyses were performed for all gestational ages (GAs) and separately for GAs & lt;25 weeks and ≥25 weeks. RESULTS: Early and in-hospital mortality rates among centers were 5% to 36% and 11% to 53% for all GAs, 13% to 73% and 28% to 90% for GAs & lt;25 weeks, and 1% to 11% and 7% to 26% for GAs ≥25 weeks, respectively. Center intervention rates significantly predicted both early and in-hospital mortality for infants & lt;25 weeks. For infants ≥25 weeks, intervention rates did not predict mortality. The variance in mortality among centers was significant for all GAs and outcomes. Center use of interventions and patient risk factors explained some but not all of the center variation in mortality rates. CONCLUSIONS: Center intervention rates explain a portion of the center variation in mortality, especially for infants born at & lt;25 weeks’ GA. This finding suggests that deaths may be prevented by standardizing care for very early GA infants. However, differences in patient characteristics and center intervention rates do not account for all of the observed variability in mortality; and for infants with GA ≥25 weeks these differences account for only a small part of the variation in mortality.
    Type of Medium: Online Resource
    ISSN: 0031-4005 , 1098-4275
    URL: Article
    DOI: 10.1542/peds.2012-3707
    Language: English
    Publisher: American Academy of Pediatrics (AAP)
    Publication Date: 2013
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