1
|
Abstract
For more than 30 years, the Neonatal Research Network (NRN) has conducted studies addressing the epidemiology of neonatal infections, including incidence, microbiology, maternal and neonatal risk factors, associated clinical findings, and outcomes. These studies have provided clinicians and policymakers critical data needed to inform national guidance for infection risk assessment and support daily practice. Further, NRN studies have prompted research into optimal approaches to infection diagnosis, treatment, and antimicrobial stewardship. In this article, we summarize the key findings of NRN infection-related studies, with an emphasis on those published in 2000 or later.
Collapse
Affiliation(s)
- Dustin D Flannery
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA; Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Karen M Puopolo
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA; Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Nellie I Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC, USA
| | - Pablo J Sánchez
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Barbara J Stoll
- Department of Pediatrics, Emory University, Atlanta, GA, USA
| |
Collapse
|
2
|
Bell EF, Stoll BJ, Hansen NI, Wyckoff MH, Walsh MC, Sánchez PJ, Rysavy MA, Gabrio JH, Archer SW, Das A, Higgins RD. Contributions of the NICHD neonatal research network's generic database to documenting and advancing the outcomes of extremely preterm infants. Semin Perinatol 2022; 46:151635. [PMID: 35835615 PMCID: PMC9529835 DOI: 10.1016/j.semperi.2022.151635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network (NRN) maintains a database of extremely preterm infants known as the Generic Database (GDB). Begun in 1987, this database now includes more than 91,000 infants, most of whom are extremely preterm (<29 weeks gestation). The GDB has been the backbone of the NRN, providing high quality, prospectively collected data to study the changing epidemiology of extreme prematurity and its outcomes over time. In addition, GDB data have been used to generate hypotheses for prospective studies and to develop new clinical trials by providing information about the numbers and characteristics of available subjects and the expected event rates for conditions and complications to be studied. Since its inception, the GDB has been the basis of more than 200 publications in peer-reviewed journals, many of which have had a significant impact on the field of neonatology.
Collapse
Affiliation(s)
- Edward F Bell
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA.
| | - Barbara J Stoll
- Department of Pediatrics, Emory University, Atlanta, GA, USA; Department of Pediatrics, McGovern Medical School at UTHealth, Houston, TX, USA
| | - Nellie I Hansen
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, NC
| | - Myra H Wyckoff
- Department of Pediatrics, University of Texas Southwestern, Dallas, TX, USA
| | - Michele C Walsh
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - Pablo J Sánchez
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Matthew A Rysavy
- Department of Pediatrics, McGovern Medical School at UTHealth, Houston, TX, USA
| | - Jenna H Gabrio
- Social, Statistical, and Environmental Sciences Unit, RTI International, Berkeley, CA, USA
| | - Stephanie W Archer
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - Abhik Das
- Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville, MD, USA
| | - Rosemary D Higgins
- Office of the Associate VP for Research, Florida Gulf Coast University, Fort Myers, FL, USA
| |
Collapse
|
3
|
Puopolo KM, Mukhopadhyay S, Hansen NI, Flannery DD, Greenberg RG, Sanchez PJ, Bell EF, DeMauro SB, Wyckoff MH, Eichenwald EC, Stoll BJ. Group B Streptococcus Infection in Extremely Preterm Neonates and Neurodevelopmental Outcomes at 2 Years. Clin Infect Dis 2022; 75:1405-1415. [PMID: 35323895 PMCID: PMC9555845 DOI: 10.1093/cid/ciac222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND This study was performed to determine the incidence of group B Streptococcus (GBS) disease among extremely preterm infants and assess to risk of death or neurodevelopmental impairment (NDI) at a corrected age of 18-26 months. METHODS In this observational cohort study of infants enrolled in a multicenter registry, the incidence of GBS disease was assessed in infants born in 1998-2016 at 22-28 weeks' gestation and surviving for >12 hours. The composite outcome, death or NDI, was assessed in infants born in 1998-2014 at 22-26 weeks' gestation. Infection was defined as GBS isolation in blood or cerebrospinal fluid culture at ≤72 hours (early-onset disease [EOD]) or >72 hours (late-onset disease [LOD]) after birth. Using Poisson regression models, the outcome was compared in infants with GBS disease, infants infected with other pathogens, and uninfected infants. RESULTS The incidence of GBS EOD (2.70/1000 births [95% confidence interval (CI), 2.15-3.36]) and LOD (8.47/1000 infants [7.45-9.59]) did not change significantly over time. The adjusted relative risk of death/NDI was higher among infants with GBS EOD than in those with other infections (adjusted relative risk, 1.22 [95% CI, 1.02-1.45]) and uninfected infants (1.44 [1.23-1.69]). Risk of death/NDI did not differ between infants with GBS LOD and comparator groups. GBS LOD occurred at a significantly later age than non-GBS late-onset infection. Among infants surviving >30 days, the risk of death was higher with GBS LOD (adjusted relative risk, 1.90 [95% CI, 1.36-2.67]), compared with uninfected infants. CONCLUSIONS In a cohort of extremely preterm infants, the incidence of GBS disease did not change during the study period. The increased risk of death or NDI with GBS EOD, and of death among some infants with GBS LOD, supports the need for novel preventive strategies for disease reduction. CLINICAL TRIALS REGISTRATION NCT00063063.
Collapse
Affiliation(s)
- Karen M Puopolo
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Center for Pediatric Clinical Excellence, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Sagori Mukhopadhyay
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Center for Pediatric Clinical Excellence, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Nellie I Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina, USA
| | - Dustin D Flannery
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Center for Pediatric Clinical Excellence, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Pablo J Sanchez
- Department of Pediatrics, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Edward F Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Sara B DeMauro
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Myra H Wyckoff
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Eric C Eichenwald
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Barbara J Stoll
- Department of Pediatrics, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, Texas, USA
| |
Collapse
|
4
|
Travers CP, Hansen NI, Das A, Rysavy MA, Bell EF, Ambalavanan N, Peralta-Carcelen M, Tita AT, Van Meurs KP, Carlo WA. Potential missed opportunities for antenatal corticosteroid exposure and outcomes among periviable births: observational cohort study. BJOG 2022; 129:10.1111/1471-0528.17230. [PMID: 35611472 PMCID: PMC9684347 DOI: 10.1111/1471-0528.17230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/22/2022] [Accepted: 03/27/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Test the hypothesis potential missed opportunities for antenatal corticosteroids increase as gestational age decreases and are associated with adverse outcomes. DESIGN Observational cohort study. SETTING 24 US centers in the Neonatal Research Network. POPULATION Actively treated infants 22-25 weeks' gestation and birth weight 401-1000 grams, without major birth defects, born 2006-2018. METHODS Potential missed opportunity was defined as no antenatal corticosteroids but did have prenatal antibiotics, and/or magnesium sulfate, and/or prolonged rupture of membranes. Poisson regression models adjusted for baseline characteristics. MAIN OUTCOME MEASURES Antenatal corticosteroid exposure, mortality, and severe intracranial hemorrhage or periventricular leukomalacia. RESULTS 6966 (87.5%) were exposed to antenatal corticosteroids, 454 (5.7%) had no exposure but potential missed opportunities for antenatal corticosteroid exposure, and 537 (6.7%) had no exposure and no evidence of potential missed opportunities. Compared with infants born at 25 weeks, potential missed opportunities for antenatal corticosteroid exposure were more likely at 22 weeks (adjusted relative risk (aRR) [95% CI] 11.06 [7.52-16.27]) and 23 weeks (3.24 [2.44-4.29]) but did not differ at 24 weeks (1.08 [0.82-1.42]). Potential missed opportunities for antenatal corticosteroids decreased over time at 22-23 weeks' gestation. Antenatal corticosteroid exposed infants had lower risk of death (31.0% vs 54.8%; 0.77 [0.70-0.84]) and survivors had lower risk of severe brain injury (25.0% v 44.5%; 0.64 [0.55-0.73]) compared with infants with potential missed opportunities. CONCLUSION Potential missed opportunities for antenatal corticosteroid exposure increased with decreasing gestational age and were associated with higher rates of death and severe brain injury among actively treated periviable births.
Collapse
Affiliation(s)
- Colm P. Travers
- Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC, United States
| | - Abhik Das
- Social, Statistical and Environmental Sciences Unit, RTI International, Rockville, MD, United States
| | | | - Edward F. Bell
- Pediatrics, University of Iowa, Iowa City, IA, United States
| | | | | | - Alan T. Tita
- Obstetrics & Gynecology, and Center for Women’s Reproductive Health, University of Alabama at Birmingham, Birmingham, AL, United States
| | | | - Waldemar A. Carlo
- Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | | |
Collapse
|
5
|
Abstract
BACKGROUND Empiric administration of ampicillin and gentamicin is recommended for newborns at risk of early-onset sepsis (EOS). There are limited data on antimicrobial susceptibility of all EOS pathogens. METHODS Retrospective review of antimicrobial susceptibility data from a prospective EOS surveillance study of infants born ≥22 weeks' gestation and cared for in Neonatal Research Network centers April 2015-March 2017. Nonsusceptible was defined as intermediate or resistant on final result. RESULTS We identified 239 pathogens (235 bacteria, 4 fungi) in 235 EOS cases among 217,480 live-born infants. Antimicrobial susceptibility data were available for 189/239 (79.1%) isolates. Among 81 Gram-positive isolates with ampicillin and gentamicin susceptibility data, all were susceptible in vitro to either ampicillin or gentamicin. Among Gram-negative isolates with ampicillin and gentamicin susceptibility data, 72/94 (76.6%) isolates were nonsusceptible to ampicillin, 8/94 (8.5%) were nonsusceptible to gentamicin, and 7/96 (7.3%) isolates were nonsusceptible to both. Five percent or less of tested Gram-negative isolates were nonsusceptible to each of third or fourth generation cephalosporins, piperacillin-tazobactam, and carbapenems. Overall, we estimated that 8% of EOS cases were caused by isolates nonsusceptible to both ampicillin and gentamicin; these were most likely to occur among preterm, very-low birth weight infants. CONCLUSIONS The vast majority of contemporary EOS pathogens are susceptible to the combination of ampicillin and gentamicin. Clinicians may consider the addition of broader-spectrum therapy among newborns at highest risk of EOS, but we caution that neither the substitution nor the addition of 1 single antimicrobial agent is likely to provide adequate empiric therapy in all cases.
Collapse
Affiliation(s)
- Dustin D. Flannery
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
- Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Karen M. Puopolo
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
- Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC
| | - Jeffrey S. Gerber
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
- Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia, Philadelphia, PA
- Division of Infectious Diseases, Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Pablo J. Sánchez
- Department of Pediatrics, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, OH
| | - Barbara J. Stoll
- Department of Pediatrics, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX
| | | |
Collapse
|
6
|
Bell EF, Hintz SR, Hansen NI, Bann CM, Wyckoff MH, DeMauro SB, Walsh MC, Vohr BR, Stoll BJ, Carlo WA, Van Meurs KP, Rysavy MA, Patel RM, Merhar SL, Sánchez PJ, Laptook AR, Hibbs AM, Cotten CM, D’Angio CT, Winter S, Fuller J, Das A. Mortality, In-Hospital Morbidity, Care Practices, and 2-Year Outcomes for Extremely Preterm Infants in the US, 2013-2018. JAMA 2022; 327:248-263. [PMID: 35040888 PMCID: PMC8767441 DOI: 10.1001/jama.2021.23580] [Citation(s) in RCA: 212] [Impact Index Per Article: 106.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 12/10/2021] [Indexed: 12/19/2022]
Abstract
IMPORTANCE Despite improvement during recent decades, extremely preterm infants continue to contribute disproportionately to neonatal mortality and childhood morbidity. OBJECTIVE To review survival, in-hospital morbidities, care practices, and neurodevelopmental and functional outcomes at 22-26 months' corrected age for extremely preterm infants. DESIGN, SETTING, AND PARTICIPANTS Prospective registry for extremely preterm infants born at 19 US academic centers that are part of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. The study included 10 877 infants born at 22-28 weeks' gestational age between January 1, 2013, and December 31, 2018, including 2566 infants born before 27 weeks between January 1, 2013, and December 31, 2016, who completed follow-up assessments at 22-26 months' corrected age. The last assessment was completed on August 13, 2019. Outcomes were compared with a similar cohort of infants born in 2008-2012 adjusting for gestational age. EXPOSURES Extremely preterm birth. MAIN OUTCOMES AND MEASURES Survival and 12 in-hospital morbidities were assessed, including necrotizing enterocolitis, infection, intracranial hemorrhage, retinopathy of prematurity, and bronchopulmonary dysplasia. Infants were assessed at 22-26 months' corrected age for 12 health and functional outcomes, including neurodevelopment, cerebral palsy, vision, hearing, rehospitalizations, and need for assistive devices. RESULTS The 10 877 infants were 49.0% female and 51.0% male; 78.3% (8495/10848) survived to discharge, an increase from 76.0% in 2008-2012 (adjusted difference, 2.0%; 95% CI, 1.0%-2.9%). Survival to discharge was 10.9% (60/549) for live-born infants at 22 weeks and 94.0% (2267/2412) at 28 weeks. Survival among actively treated infants was 30.0% (60/200) at 22 weeks and 55.8% (535/958) at 23 weeks. All in-hospital morbidities were more likely among infants born at earlier gestational ages. Overall, 8.9% (890/9956) of infants had necrotizing enterocolitis, 2.4% (238/9957) had early-onset infection, 19.9% (1911/9610) had late-onset infection, 14.3% (1386/9705) had severe intracranial hemorrhage, 12.8% (1099/8585) had severe retinopathy of prematurity, and 8.0% (666/8305) had severe bronchopulmonary dysplasia. Among 2930 surviving infants with gestational ages of 22-26 weeks eligible for follow-up, 2566 (87.6%) were examined. By 2-year follow-up, 8.4% (214/2555) of children had moderate to severe cerebral palsy, 1.5% (38/2555) had bilateral blindness, 2.5% (64/2527) required hearing aids or cochlear implants, 49.9% (1277/2561) had been rehospitalized, and 15.4% (393/2560) required mobility aids or other supportive devices. Among 2458 fully evaluated infants, 48.7% (1198/2458) had no or mild neurodevelopmental impairment at follow-up, 29.3% (709/2419) had moderate neurodevelopmental impairment, and 21.2% (512/2419) had severe neurodevelopmental impairment. CONCLUSIONS AND RELEVANCE Among extremely preterm infants born in 2013-2018 and treated at 19 US academic medical centers, 78.3% survived to discharge, a significantly higher rate than for infants born in 2008-2012. Among infants born at less than 27 weeks' gestational age, rehospitalization and neurodevelopmental impairment were common at 2 years of age.
Collapse
Affiliation(s)
| | - Susan R. Hintz
- Department of Pediatrics, Stanford University, Palo Alto, California
| | - Nellie I. Hansen
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | - Carla M. Bann
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | - Myra H. Wyckoff
- Department of Pediatrics, University of Texas Southwestern, Dallas
| | - Sara B. DeMauro
- Department of Pediatrics, University of Pennsylvania, Philadelphia
| | - Michele C. Walsh
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Betty R. Vohr
- Department of Pediatrics, Brown University, Providence, Rhode Island
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | | | | | | | - Ravi M. Patel
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | | | - Pablo J. Sánchez
- Department of Pediatrics, The Ohio State University and Nationwide Children’s Hospital, Columbus
| | - Abbot R. Laptook
- Department of Pediatrics, Brown University, Providence, Rhode Island
| | - Anna Maria Hibbs
- Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio
| | | | - Carl T. D’Angio
- Department of Pediatrics, University of Rochester, Rochester, New York
| | - Sarah Winter
- Department of Pediatrics, University of Utah, Salt Lake City
| | - Janell Fuller
- Department of Pediatrics, University of New Mexico, Albuquerque
| | - Abhik Das
- Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville, Maryland
| |
Collapse
|
7
|
Shane AL, Hansen NI, Moallem M, Wyckoff MH, Sánchez PJ, Stoll BJ. Surgery-Associated Infections among Infants Born Extremely Preterm. J Pediatr 2022; 240:58-65.e6. [PMID: 34461060 PMCID: PMC8712381 DOI: 10.1016/j.jpeds.2021.08.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/18/2021] [Accepted: 08/23/2021] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To assess the burden of invasive infection following surgery (surgery-associated infections [SAI]) among infants born extremely premature. STUDY DESIGN This was an observational, prospective study of infants born at gestational age 22-28 weeks hospitalized for >3 days, between April 1, 2011, to March 31, 2015, in academic centers of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. SAI was defined by culture-confirmed bacteremia, fungemia, or meningitis ≤14 days following a surgical procedure. RESULTS Of 6573 infants, 1154 (18%) who underwent surgery were of lower gestational age (mean [SD]: 25.5 [1.6] vs 26.2 [1.6], P < .001), lower birth weight (803 [220] vs 886 [244], P < .001), and more likely to have a major birth defect (10% vs 3%, P < .001); 64% had 1 surgery (range 1-10 per infant). Most underwent gastrointestinal procedures (873, 76%) followed by central nervous system procedures (150, 13%). Eighty-five (7%) infants had 90 SAIs (78 bacteremia, 5 fungemia, 1 bacteremia and meningitis, 6 meningitis alone). Coagulase-negative staphylococci were isolated in 36 (40%) SAI and were isolated with another organism in 5 episodes. Risk of SAI or death ≤14 days after surgery was greater after gastrointestinal compared with central nervous system procedures (16% vs 7%, adjusted relative risk [95% CI]: 1.95 [1.15-3.29], P = .01). Death ≤14 days after surgery occurred in 141 of the 1154 infants; 128 deaths occurred after gastrointestinal surgeries. CONCLUSIONS Surgical procedures were associated with bacteremia, fungemia, or meningitis in 7% of infants. The epidemiology of invasive postoperative infections as described in this report may inform the selection of empiric antimicrobial therapy and postoperative preventive care.
Collapse
Affiliation(s)
- Andi L Shane
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA.
| | - Nellie I Hansen
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, NC, United States
| | - Mohannad Moallem
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Myra H. Wyckoff
- Department of Pediatrics, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, United States
| | - Pablo J Sánchez
- Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Barbara J Stoll
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, GA, United States,Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston, TX, United States
| | | |
Collapse
|
8
|
Mukhopadhyay S, Puopolo KM, Hansen NI, Lorch SA, DeMauro SB, Greenberg RG, Cotten CM, Sánchez PJ, Bell EF, Eichenwald EC, Stoll BJ. Neurodevelopmental outcomes following neonatal late-onset sepsis and blood culture-negative conditions. Arch Dis Child Fetal Neonatal Ed 2021; 106:467-473. [PMID: 33478957 PMCID: PMC8292446 DOI: 10.1136/archdischild-2020-320664] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/12/2020] [Accepted: 12/16/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Determine risk of death or neurodevelopmental impairment (NDI) in infants with late-onset sepsis (LOS) versus late-onset, antibiotic-treated, blood culture-negative conditions (LOCNC). DESIGN Retrospective cohort study. SETTING 24 neonatal centres. PATIENTS Infants born 1/1/2006-31/12/2014, at 22-26 weeks gestation, with birth weight 401-1000 g and surviving >7 days were included. Infants with early-onset sepsis, necrotising enterocolitis, intestinal perforation or both LOS and LOCNC were excluded. EXPOSURES LOS and LOCNC were defined as antibiotic administration for ≥5 days with and without a positive blood/cerebrospinal fluid culture, respectively. Infants with these diagnoses were also compared with infants with neither condition. OUTCOMES Death or NDI was assessed at 18-26 months corrected age follow-up. Modified Poisson regression models were used to estimate relative risks adjusting for covariates occurring ≤7 days of age. RESULTS Of 7354 eligible infants, 3940 met inclusion criteria: 786 (20%) with LOS, 1601 (41%) with LOCNC and 1553 (39%) with neither. Infants with LOS had higher adjusted relative risk (95% CI) for death/NDI (1.14 (1.05 to 1.25)) and death before follow-up (1.71 (1.44 to 2.03)) than those with LOCNC. Among survivors, risk for NDI did not differ between the two groups (0.99 (0.86 to 1.13)) but was higher for LOCNC infants (1.17 (1.04 to 1.31)) compared with unaffected infants. CONCLUSIONS Infants with LOS had higher risk of death, but not NDI, compared with infants with LOCNC. Surviving infants with LOCNC had higher risk of NDI compared with unaffected infants. Improving outcomes for infants with LOCNC requires study of the underlying conditions and the potential impact of antibiotic exposure.
Collapse
Affiliation(s)
- Sagori Mukhopadhyay
- Pediatrics, Neonatology, The Children's Hospital of Philadelphia and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Karen M. Puopolo
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC, USA
| | - Scott A. Lorch
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Sara B. DeMauro
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | | | | | - Pablo J. Sánchez
- Neonatology and Pediatric Infectious Diseases, Nationwide Children’s Hospital, The Ohio State University College of Medicine, The Center for Perinatal Research, The Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, USA
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - Eric C. Eichenwald
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Barbara J. Stoll
- Department of Pediatrics, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX, USA
| | | |
Collapse
|
9
|
Bell M, Cole CR, Hansen NI, Duncan AF, Hintz SR, Adams-Chapman I. Neurodevelopmental and Growth Outcomes of Extremely Preterm Infants with Short Bowel Syndrome. J Pediatr 2021; 230:76-83.e5. [PMID: 33246015 PMCID: PMC8861973 DOI: 10.1016/j.jpeds.2020.11.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To determine if preterm infants with surgical necrotizing enterocolitis (sNEC) or spontaneous intestinal perforation (SIP) with short bowel syndrome (SBS) have worse neurodevelopmental and growth outcomes than those with sNEC/SIP without SBS, and those with no necrotizing enterocolitis, SIP, or SBS. STUDY DESIGN We undertook a retrospective analysis of prospectively collected data from infants born between 22 and 26 weeks of gestation in the National Institute of Child Health and Human Development Neonatal Research Network centers from January 1, 2008, to December 31, 2016. Survivors were assessed at 18-26 months corrected age by standardized neurologic examination and Bayley Scales of Infant and Toddler Development, Third Edition. The primary outcome was moderate-severe neurodevelopmental impairment. Growth was assessed using World Health Organization z-score standards. Adjusted relative risks were estimated using modified Poisson regression models. RESULTS Mortality was 32%, 45%, and 21% in the 3 groups, respectively. Eighty-nine percent of survivors were seen at 18-26 months corrected age. Moderate-severe neurodevelopmental impairment was present in 77% of children with SBS compared with 62% with sNEC/SIP without SBS (adjusted relative risk, 1.22; 95% CI, 1.02-1.45; P = .03) and 44% with no necrotizing enterocolitis, SIP, or SBS (adjusted relative risk, 1.60; 95% CI, 1.37-1.88; P < .001). Children with SBS had lowcognitive, language, and motor scores than children with sNEC/SIP without SBS. At follow-up, length and head circumference z-scores remained more than 1 SD below the mean for children with SBS. CONCLUSIONS Preterm infants with sNEC/SIP and SBS had increased risk of adverse neurodevelopmental outcomes at 18-26 months corrected age and impaired growth compared with peers with sNEC/SIP without SBS or without any of these conditions.
Collapse
Affiliation(s)
- Mercedes Bell
- The Permanente Medical Group, Kaiser Oakland Medical Center, Oakland, CA
| | - Conrad R. Cole
- Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC
| | - Andrea F. Duncan
- Department of Pediatrics, University of Pennsylvania, Philadelphia, PA
| | - Susan R. Hintz
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, CA
| | - Ira Adams-Chapman
- Emory University School of Medicine, Department of Pediatrics, Children’s Healthcare of Atlanta, Atlanta, GA
| | | |
Collapse
|
10
|
Stoll BJ, Puopolo KM, Hansen NI, Sánchez PJ, Bell EF, Carlo WA, Cotten CM, D’Angio CT, Kazzi SNJ, Poindexter BB, Van Meurs KP, Hale EC, Collins MV, Das A, Baker CJ, Wyckoff MH, Yoder BA, Watterberg KL, Walsh MC, Devaskar U, Laptook AR, Sokol GM, Schrag SJ, Higgins RD. Early-Onset Neonatal Sepsis 2015 to 2017, the Rise of Escherichia coli, and the Need for Novel Prevention Strategies. JAMA Pediatr 2020; 174:e200593. [PMID: 32364598 PMCID: PMC7199167 DOI: 10.1001/jamapediatrics.2020.0593] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Early-onset sepsis (EOS) remains a potentially fatal newborn condition. Ongoing surveillance is critical to optimize prevention and treatment strategies. OBJECTIVE To describe the current incidence, microbiology, morbidity, and mortality of EOS among a cohort of term and preterm infants. DESIGN, SETTING, AND PARTICIPANTS This prospective surveillance study included a cohort of infants born at a gestational age (GA) of at least 22 weeks and birth weight of greater than 400 g from 18 centers of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network from April 1, 2015, to March 31, 2017. Data were analyzed from June 14, 2019, to January 28, 2020. MAIN OUTCOMES AND MEASURES Early-onset sepsis defined by isolation of pathogenic species from blood or cerebrospinal fluid culture within 72 hours of birth and antibiotic treatment for at least 5 days or until death. RESULTS A total of 235 EOS cases (127 male [54.0%]) were identified among 217 480 newborns (1.08 [95% CI, 0.95-1.23] cases per 1000 live births). Incidence varied significantly by GA and was highest among infants with a GA of 22 to 28 weeks (18.47 [95% CI, 14.57-23.38] cases per 1000). No significant differences in EOS incidence were observed by sex, race, or ethnicity. The most frequent pathogens were Escherichia coli (86 [36.6%]) and group B streptococcus (GBS; 71 [30.2%]). E coli disease primarily occurred among preterm infants (68 of 131 [51.9%]); GBS disease primarily occurred among term infants (54 of 104 [51.9%]), with 24 of 45 GBS cases (53.3%) seen in infants born to mothers with negative GBS screening test results. Intrapartum antibiotics were administered to 162 mothers (68.9%; 110 of 131 [84.0%] preterm and 52 of 104 [50.0%] term), most commonly for suspected chorioamnionitis. Neonatal empirical antibiotic treatment most frequently included ampicillin and gentamicin. All GBS isolates were tested, but only 18 of 81 (22.2%) E coli isolates tested were susceptible to ampicillin; 6 of 77 E coli isolates (7.8%) were resistant to both ampicillin and gentamicin. Nearly all newborns with EOS (220 of 235 [93.6%]) displayed signs of illness within 72 hours of birth. Death occurred in 38 of 131 infected infants with GA of less than 37 weeks (29.0%); no term infants died. Compared with earlier surveillance (2006-2009), the rate of E coli infection increased among very low-birth-weight (401-1500 g) infants (8.68 [95% CI, 6.50-11.60] vs 5.07 [95% CI, 3.93-6.53] per 1000 live births; P = .008). CONCLUSIONS AND RELEVANCE In this study, EOS incidence and associated mortality disproportionately occurred in preterm infants. Contemporary cases have demonstrated the limitations of current GBS prevention strategies. The increase in E coli infections among very low-birth-weight infants warrants continued study. Ampicillin and gentamicin remained effective antibiotics in most cases, but ongoing surveillance should monitor antibiotic susceptibilities of EOS pathogens.
Collapse
Affiliation(s)
- Barbara J. Stoll
- Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center, Houston and Children’s Memorial Hermann Hospital, Houston
| | - Karen M. Puopolo
- Department of Pediatrics, Children’s Hospital of Philadelphia, University of Pennsylvania, Philadelphia
| | - Nellie I. Hansen
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | - Pablo J. Sánchez
- Department of Pediatrics, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus
| | | | | | | | - Carl T. D’Angio
- Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | | | - Brenda B. Poindexter
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio,Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Krisa P. Van Meurs
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Lucile Packard Children’s Hospital, Stanford University School of Medicine, Palo Alto, California
| | - Ellen C. Hale
- Department of Pediatrics, Emory University School of Medicine, Children’s Healthcare of Atlanta, Atlanta, Georgia
| | | | - Abhik Das
- Social, Statistical and Environmental Sciences Unit, RTI International, Rockville, Maryland
| | - Carol J. Baker
- Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center, Houston and Children’s Memorial Hermann Hospital, Houston
| | - Myra H. Wyckoff
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas
| | - Bradley A. Yoder
- Division of Neonatology, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City
| | - Kristi L. Watterberg
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque
| | - Michele C. Walsh
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Uday Devaskar
- Department of Pediatrics, UCLA (University of California, Los Angeles)
| | - Abbot R. Laptook
- Department of Pediatrics, Women & Infants Hospital, Brown University, Providence, Rhode Island
| | - Gregory M. Sokol
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis
| | | | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, Maryland,Office of Research, George Mason University College of Health and Human Services, Fairfax, Virginia
| | | |
Collapse
|
11
|
Mukhopadhyay S, Puopolo KM, Hansen NI, Lorch SA, DeMauro SB, Greenberg RG, Cotten CM, Sánchez PJ, Bell EF, Eichenwald EC, Stoll BJ. Impact of Early-Onset Sepsis and Antibiotic Use on Death or Survival with Neurodevelopmental Impairment at 2 Years of Age among Extremely Preterm Infants. J Pediatr 2020; 221:39-46.e5. [PMID: 32446491 PMCID: PMC7248124 DOI: 10.1016/j.jpeds.2020.02.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 02/05/2020] [Accepted: 02/17/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To evaluate the hypothesis that early-onset sepsis increases risk of death or neurodevelopmental impairment (NDI) among preterm infants; and that among infants without early-onset sepsis, prolonged early antibiotics alters risk of death/NDI. STUDY DESIGN Retrospective cohort study of infants born at the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network centers (2006-2014) at 22-26 weeks of gestation and birth weight 401-1000 g. Early-onset sepsis defined as growth of a pathogen from blood or cerebrospinal fluid culture ≤72 hours after birth. Prolonged early antibiotics was defined as antibiotics initiated ≤72 hours and continued ≥5 days without culture-confirmed infection, necrotizing enterocolitis, or spontaneous perforation. Primary outcome was death before follow-up or NDI assessed at 18-26 months corrected age. Poisson regression was used to estimate adjusted relative risk (aRR) and CI for early-onset sepsis outcomes. A propensity score for receiving prolonged antibiotics was derived from early clinical factors and used to match infants (1:1) with and without prolonged antibiotic exposure. Log binomial models were used to estimate aRR for outcomes in matched infants. RESULTS Among 6565 infants, those with early-onset sepsis had higher aRR (95% CI) for death/NDI compared with infants managed with prolonged antibiotics (1.18 [1.06-1.32]) and to infants without prolonged antibiotics (1.23 [1.10-1.37]). Propensity score matching was achieved for 4362 infants. No significant difference in death/NDI (1.04 [0.98-1.11]) was observed with or without prolonged antibiotics among the matched cohort. CONCLUSIONS Early-onset sepsis was associated with increased risk of death/NDI among extremely preterm infants. Among matched infants without culture-confirmed infection, prolonged early antibiotic administration was not associated with death/NDI.
Collapse
Affiliation(s)
- Sagori Mukhopadhyay
- Division of Neonatology, Department of Pediatrics, Children's Hospital of Philadelphia; Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.
| | - Karen M. Puopolo
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC
| | - Scott A. Lorch
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Sara B. DeMauro
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | | | | | - Pablo J. Sánchez
- Neonatology and Pediatric Infectious Diseases, Nationwide Children’s Hospital, The Ohio State University College of Medicine, The Center for Perinatal Research, The Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, IA
| | - Eric C. Eichenwald
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, PA,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Barbara J. Stoll
- Department of Pediatrics, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX
| | | |
Collapse
|
12
|
Greenberg RG, Chowdhury D, Hansen NI, Smith PB, Stoll BJ, Sánchez PJ, Das A, Puopolo KM, Mukhopadhyay S, Higgins RD, Cotten CM. Prolonged duration of early antibiotic therapy in extremely premature infants. Pediatr Res 2019; 85:994-1000. [PMID: 30737489 PMCID: PMC6531328 DOI: 10.1038/s41390-019-0300-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/04/2019] [Accepted: 01/08/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND Prolonged early antibiotics in extremely premature infants may have negative effects. We aimed to assess prevalence and outcomes of provision of prolonged early antibiotics to extremely premature infants in the absence of culture-confirmed infection or NEC. METHODS Cohort study of infants from 13 centers born without a major birth defect from 2008-2014 who were 401-1000 grams birth weight, 22-28 weeks gestation, and survived ≥5 days without culture-confirmed infection, NEC, or spontaneous intestinal perforation. We determined the proportion of infants who received prolonged early antibiotics, defined as ≥5 days of antibiotic therapy started at ≤72 h of age, by center and over time. Associations between prolonged early antibiotics and adverse outcomes were assessed using multivariable logistic regression. RESULTS A total of 5730 infants were included. The proportion of infants receiving prolonged early antibiotics varied from 30-69% among centers and declined from 49% in 2008 to 35% in 2014. Prolonged early antibiotics was not significantly associated with death (adjusted odds ratio 1.17 [95% CI: 0.99-1.40], p = 0.07) and was not associated with NEC. CONCLUSIONS The proportion of extremely premature infants receiving prolonged early antibiotics decreased, but significant center variation persists. Prolonged early antibiotics were not significantly associated with increased odds of death or NEC.
Collapse
Affiliation(s)
- Rachel G Greenberg
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA.
| | - Dhuly Chowdhury
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC, Durham, USA
| | - Nellie I Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC, Durham, USA
| | - P Brian Smith
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Barbara J Stoll
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, TX, USA
| | - Pablo J Sánchez
- Department of Pediatrics, Nationwide Children's Hospital, Columbus, OH, USA
| | - Abhik Das
- Social, Statistical and Environmental Sciences Unit, RTI International, Rockville, MD, USA
| | - Karen M Puopolo
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Sagori Mukhopadhyay
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Rosemary D Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - C Michael Cotten
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| |
Collapse
|
13
|
Brumbaugh JE, Hansen NI, Bell EF, Sridhar A, Carlo WA, Hintz SR, Vohr BR, Colaizy TT, Duncan AF, Wyckoff MH, Baack ML, Rysavy MA, DeMauro SB, Stoll BJ, Das A, Higgins RD. Outcomes of Extremely Preterm Infants With Birth Weight Less Than 400 g. JAMA Pediatr 2019; 173:434-445. [PMID: 30907941 PMCID: PMC6503635 DOI: 10.1001/jamapediatrics.2019.0180] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
IMPORTANCE Birth weight (BW) is an important predictor of mortality and morbidity. At extremely early gestational ages (GAs), BW may influence decisions regarding initiation of resuscitation. OBJECTIVE To characterize outcomes of liveborn infants with a BW less than 400 g. DESIGN, SETTING, AND PARTICIPANTS This retrospective multicenter cohort study analyzed extremely preterm infants born between January 2008 and December 2016 within the National Institute of Child Health and Human Development Neonatal Research Network. Infants with a BW less than 400 g and a GA of 22 to 26 weeks were included. Active treatment was defined as the provision of any potentially lifesaving intervention after birth. Survival was analyzed for the entire cohort; neurodevelopmental impairment (NDI) was examined for those born between January 2008 and December 2015 (birth years with outcomes available for analysis). Neurodevelopmental impairment at 18 to 26 months' corrected age (CA) was defined as a Bayley Scales of Infant and Toddler Development, Third Edition, cognitive composite score less than 85, a motor composite score less than 85, moderate or severe cerebral palsy, gross motor function classification system score of 2 or greater, bilateral blindness, and/or hearing impairment. Data were analyzed from September 2017 to October 2018. EXPOSURES Birth weight less than 400 g. MAIN OUTCOMES AND MEASURES The primary outcome was survival to discharge among infants who received active treatment. Analysis of follow-up data was limited to infants born from 2008 to 2015 to ensure children had reached assessment age. Within this cohort, neurodevelopmental outcomes were assessed for infants who survived to 18 to 26 months' CA and returned for a comprehensive visit. RESULTS Of the 205 included infants, 121 (59.0%) were female, 133 (64.9%) were singletons, and 178 (86.8%) were small for gestational age. Almost half (101 of 205 [49.3%]) received active treatment at birth. A total of 26 of 205 infants (12.7%; 95% CI, 8.5-18.9) overall survived to discharge, and 26 of 101 actively treated infants (25.7%; 95% CI, 17.6-35.4) survived to discharge. Within the subset of infants with a BW less than 400 g and a GA of 22 to 23 weeks, 6 of 36 actively treated infants (17%; 95% CI, 6-33) survived to discharge. Among infants born between 2008 and 2015, 23 of 90 actively treated infants (26%; 95% CI, 17-36) survived to discharge. Two infants died after discharge, and 2 were lost to follow-up. Thus, 19 of 90 actively treated infants (21%; 95% CI, 13-31) were evaluated at 18 to 26 months' CA. Moderate or severe NDI occurred in 14 of 19 infants (74%). CONCLUSIONS AND RELEVANCE Infants born with a BW less than 400 g are at high risk of mortality and significant morbidity. Although 21% of infants survived to 18 to 26 months' CA with active treatment, NDI was common among survivors.
Collapse
Affiliation(s)
- Jane E. Brumbaugh
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
| | - Nellie I. Hansen
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | | | - Amaanti Sridhar
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | | | - Susan R. Hintz
- Department of Pediatrics, Stanford University, Palo Alto, California
| | - Betty R. Vohr
- Department of Pediatrics, Brown University, Providence, Rhode Island
| | | | - Andrea F. Duncan
- Department of Pediatrics, University of Texas Health Science Center at Houston
| | - Myra H. Wyckoff
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas
| | - Michelle L. Baack
- Children’s Health Research Center, Sanford Research, Sioux Falls, South Dakota
| | | | - Sara B. DeMauro
- Department of Pediatrics, University of Pennsylvania, Philadelphia
| | - Barbara J. Stoll
- Department of Pediatrics, University of Texas Health Science Center at Houston
| | - Abhik Das
- Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville, Maryland
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | | |
Collapse
|
14
|
Do BT, Hansen NI, Bann C, Lander RL, Goudar SS, Pasha O, Chomba E, Dhaded SM, Thorsten VR, Wallander JL, Biasini FJ, Derman R, Goldenberg RL, Carlo WA. Associations between feeding practices and growth and neurodevelopmental outcomes at 36 months among children living in low- and low-middle income countries who participated in the BRAIN-HIT trial. BMC Nutr 2018; 4:19. [PMID: 32123571 PMCID: PMC7050755 DOI: 10.1186/s40795-018-0228-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 04/12/2018] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Feeding practices over the first several years of a child's life can critically influence development. The purpose of this study was to examine associations between feeding practices and growth and neurodevelopmental outcomes at 36 months of age among children from low- and low-middle-income countries (LMIC). METHODS We conducted a secondary analysis using data collected from children in India, Pakistan, and Zambia who were enrolled in a randomized controlled trial of a home-based early development intervention program called Brain Research to Ameliorate Impaired Neurodevelopment Home-based Intervention Trial. Qualitative dietary data collected at 36 months was used to assess the modified Minimum Acceptable Diet (mMAD), a measure based on a core indicator developed by the World Health Organization to measure whether young children receive the minimum number of meals recommended and adequate diversity of major food groups in their diet. Regression models were used to assess cross-sectional associations between diet and growth indices, including Z-scores for height-for-age (HAZ), weight-for-age (WAZ), weight-for-height (WHZ), head circumference (HCZ), and Bayley Scales of Infant Development II mental and psychomotor developmental measures at 36 months of age. RESULTS Of 371 children, 174 (47%) consumed the mMAD, with significantly higher mean adjusted WHZ than those who did not meet mMAD (0.20 vs - 0.08, p = 0.05). Egg consumption was found to be significantly associated with a decreased risk of wasting [adjusted RR (95% CI): 0.37 (0.15, 0.89), p = 0.03]. HCZ at 36 months did not differ significantly for children who did and did not receive the mMAD. CONCLUSION Meeting the mMAD was associated with better weight-for-height outcomes at 36 months in children in these three LMIC, highlighting the importance of adequate food quantity and quality. TRIAL REGISTRATION registered on March 20, 2008.
Collapse
Affiliation(s)
- Barbara T. Do
- RTI International, Research Triangle Park, North Carolina USA
| | | | - Carla Bann
- RTI International, Research Triangle Park, North Carolina USA
| | | | | | - Omrana Pasha
- Department of Population, Family & Reproductive Health, John Hopkins University Bloomberg School of Public Health, Baltimore, Maryland USA
| | | | | | | | | | - Fred J. Biasini
- Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, Alabama USA
| | - Richard Derman
- Thomas Jefferson University, Philadelphia, Pennsylvania USA
| | | | - Waldemar A. Carlo
- Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, Alabama USA
| |
Collapse
|
15
|
Puopolo KM, Mukhopadhyay S, Hansen NI, Cotten CM, Stoll BJ, Sanchez PJ, Bell EF, Das A, Hensman AM, Van Meurs KP, Wyckoff MH. Identification of Extremely Premature Infants at Low Risk for Early-Onset Sepsis. Pediatrics 2017; 140:peds.2017-0925. [PMID: 28982710 PMCID: PMC5654397 DOI: 10.1542/peds.2017-0925] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/31/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Premature infants are at high risk of early-onset sepsis (EOS) relative to term infants, and most are administered empirical antibiotics after birth. We aimed to determine if factors evident at birth could be used to identify premature infants at lower risk of EOS. METHODS Study infants were born at 22 to 28 weeks' gestation in Neonatal Research Network centers from 2006 to 2014. EOS was defined by isolation of pathogenic species from blood or cerebrospinal fluid culture at ≤72 hours age. Infants were hypothesized as "low risk" for EOS when delivered via cesarean delivery, with membrane rupture at delivery, and absence of clinical chorioamnionitis. Frequency of prolonged antibiotics (≥5 days) was compared between low-risk infants and all others. Risks of mortality, EOS, and other morbidities were assessed by using regression models adjusted for center, race, antenatal steroid use, multiple birth, sex, gestation, and birth weight. RESULTS Of 15 433 infants, 5759 (37%) met low-risk criteria. EOS incidence among infants surviving >12 hours was 29 out of 5640 (0.5%) in the low-risk group versus 209 out of 8422 (2.5%) in the comparison group (adjusted relative risk = 0.24 [95% confidence interval, 0.16-0.36]). Low-risk infants also had significantly lower combined risk of EOS or death ≤12 hours. Prolonged antibiotics were administered to 34% of low-risk infants versus 47% of comparison infants without EOS. CONCLUSIONS Delivery characteristics of extremely preterm infants can be used to identify those with significantly lower incidence of EOS. Recognition of differential risk may help guide decisions to limit early antibiotic use among approximately one-third of these infants.
Collapse
Affiliation(s)
- Karen M. Puopolo
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania;,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sagori Mukhopadhyay
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania;,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Nellie I. Hansen
- Biostatistics and Epidemiology Division, RTI International, Research Triangle Park, North Carolina;
| | - C. Michael Cotten
- Division of Neonatology, Duke University Medical Center, Duke University, Durham, North Carolina
| | - Barbara J. Stoll
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas
| | - Pablo J. Sanchez
- Section of Neonatology, Nationwide Children’s Hospital, The Ohio State University, Columbus, Ohio
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | - Abhik Das
- Biostatistics and Epidemiology Division, RTI International, Rockville, Maryland
| | - Angelita M. Hensman
- Warren Alpert Medical School, Brown University and Women & Infants Hospital of Rhode Island, Providence, Rhode Island
| | - Krisa P. Van Meurs
- Department of Pediatrics, School of Medicine, Stanford University, Stanford, California;,Lucile Packard Children’s Hospital, Palo Alto, California; and
| | - Myra H. Wyckoff
- Department of Pediatrics, University of Texas Southwestern Medical Center at Dallas, Parkland Health & Hospital System, and Children’s Medical Center Dallas, Dallas, Texas
| | | |
Collapse
|
16
|
Bukowski R, Hansen NI, Pinar H, Willinger M, Reddy UM, Parker CB, Silver RM, Dudley DJ, Stoll BJ, Saade GR, Koch MA, Hogue C, Varner MW, Conway DL, Coustan D, Goldenberg RL. Altered fetal growth, placental abnormalities, and stillbirth. PLoS One 2017; 12:e0182874. [PMID: 28820889 PMCID: PMC5562325 DOI: 10.1371/journal.pone.0182874] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 07/26/2017] [Indexed: 11/19/2022] Open
Abstract
Background Worldwide, stillbirth is one of the leading causes of death. Altered fetal growth and placental abnormalities are the strongest and most prevalent known risk factors for stillbirth. The aim of this study was to identify patterns of association between placental abnormalities, fetal growth, and stillbirth. Methods and findings Population-based case-control study of all stillbirths and a representative sample of live births in 59 hospitals in 5 geographic areas in the U.S. Fetal growth abnormalities were categorized as small (<10th percentile) and large (>90th percentile) for gestational age at death (stillbirth) or delivery (live birth) using a published algorithm. Placental examination by perinatal pathologists was performed using a standardized protocol. Data were weighted to account for the sampling design. Among 319 singleton stillbirths and 1119 singleton live births at ≥24 weeks at death or delivery respectively, 25 placental findings were investigated. Fifteen findings were significantly associated with stillbirth. Ten of the 15 were also associated with fetal growth abnormalities (single umbilical artery; velamentous insertion; terminal villous immaturity; retroplacental hematoma; parenchymal infarction; intraparenchymal thrombus; avascular villi; placental edema; placental weight; ratio birth weight/placental weight) while 5 of the 15 associated with stillbirth were not associated with fetal growth abnormalities (acute chorioamnionitis of placental membranes; acute chorioamionitis of chorionic plate; chorionic plate vascular degenerative changes; perivillous, intervillous fibrin, fibrinoid deposition; fetal vascular thrombi in the chorionic plate). Five patterns were observed: placental findings associated with (1) stillbirth but not fetal growth abnormalities; (2) fetal growth abnormalities in stillbirths only; (3) fetal growth abnormalities in live births only; (4) fetal growth abnormalities in stillbirths and live births in a similar manner; (5) a different pattern of fetal growth abnormalities in stillbirths and live births. Conclusions The patterns of association between placental abnormalities, fetal growth, and stillbirth provide insights into the mechanism of impaired placental function and stillbirth. They also suggest implications for clinical care, especially for placental findings amenable to prenatal diagnosis using ultrasound that may be associated with term stillbirths.
Collapse
Affiliation(s)
- Radek Bukowski
- The University of Texas at Austin Dell Medical School, Austin, Texas, United States of America
- * E-mail:
| | - Nellie I. Hansen
- RTI International, Research Triangle Park, North Carolina, United States of America
| | - Halit Pinar
- Brown University School of Medicine, Providence, Rhode Island, United States of America
| | - Marian Willinger
- The Pregnancy and Perinatology Branch, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Uma M. Reddy
- The Pregnancy and Perinatology Branch, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Corette B. Parker
- RTI International, Research Triangle Park, North Carolina, United States of America
| | - Robert M. Silver
- University of Utah School of Medicine and Intermountain Health Care, Salt Lake City, Utah, United States of America
| | - Donald J. Dudley
- University of Virginia School of Medicine, Charlottesville, Virginia, United States of America
| | - Barbara J. Stoll
- University of Texas Health Science Center Houston, Houston, Texas, United States of America
| | - George R. Saade
- University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America
| | - Matthew A. Koch
- RTI International, Research Triangle Park, North Carolina, United States of America
| | - Carol Hogue
- Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Michael W. Varner
- University of Utah School of Medicine and Intermountain Health Care, Salt Lake City, Utah, United States of America
| | - Deborah L. Conway
- University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Donald Coustan
- Brown University School of Medicine, Providence, Rhode Island, United States of America
| | - Robert L. Goldenberg
- Columbia University Medical Center, New York, New York, United States of America
| | | |
Collapse
|
17
|
Panigrahi P, Chandel DS, Hansen NI, Sharma N, Kandefer S, Parida S, Satpathy R, Pradhan L, Mohapatra A, Mohapatra SS, Misra PR, Banaji N, Johnson JA, Morris JG, Gewolb IH, Chaudhry R. Neonatal sepsis in rural India: timing, microbiology and antibiotic resistance in a population-based prospective study in the community setting. J Perinatol 2017; 37:911-921. [PMID: 28492525 PMCID: PMC5578903 DOI: 10.1038/jp.2017.67] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/07/2017] [Accepted: 04/11/2017] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To examine the timing and microbiology of neonatal sepsis in a population-based surveillance in the Indian community setting. STUDY DESIGN All live born infants in 223 villages of Odisha state were followed at home for 60 days. Suspect sepsis cases were referred to study hospitals for further evaluation including blood culture. RESULTS Of 12 622 births, 842 were admitted with suspected sepsis of whom 95% were 4 to 60 days old. Culture-confirmed incidence of sepsis was 6.7/1000 births with 51% Gram negatives (Klebsiella predominating) and 26% Gram positives (mostly Staphylococcus aureus). A very high level of resistance to penicillin and ampicillin, moderate resistance to cephalosporins and extremely low resistance to Gentamicin and Amikacin was observed. CONCLUSION The bacterial burden of sepsis in the Indian community is not high. Judicious choice of empiric antibiotics, antibiotic stewardship and alternate modalities should be considered for the management or prevention of neonatal sepsis in India.
Collapse
Affiliation(s)
- Pinaki Panigrahi
- Correspondence: Pinaki Panigrahi, MD, PhD, Professor of Epidemiology, Pediatrics, and Environmental-Agricultural-and-Occupational Health, Director, Center for Global Health and Development, College of Public Health, University of Nebraska Medical Center, 984385 Nebraska Medical Center, Omaha, NE 68198-4385, Tel. Office: 402-559-4960 Fax: 402-559-2330,
| | - Dinesh S. Chandel
- Department of Environmental, Agricultural, & Occupational Health, Center for Global Health and Development, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA 68198-7696
| | - Nellie I. Hansen
- Biostatistics & Epidemiology Division, RTI International, Research Triangle Park, NC, USA 27709
| | - Nidhi Sharma
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India 110029
| | - Sarah Kandefer
- Social Policy, Health, & Economics Research Division, RTI International, Atlanta, GA 30329
| | | | | | - Lingaraj Pradhan
- Department of Pediatrics, Capital Hospital, Bhubaneswar, Odisha, India 751001
| | - Arjit Mohapatra
- Asian Institute of Public Health, Bhubaneswar, Odisha, India 751002
| | | | - Pravas R. Misra
- Asian Institute of Public Health, Bhubaneswar, Odisha, India 751002
| | - Nandita Banaji
- Department of Microbiology, Indira Gandhi Medical College & Research Institute, Puducherry, India 605009
| | - Judith A. Johnson
- Emerging Pathogens Institute, University of Florida, Gainesville FL 32611
| | - John Glenn Morris
- Epidemiology, Pediatrics, & Human Development, Michigan State University College of Human Medicine, East Lansing MI 48824
| | - Ira H. Gewolb
- Department of Pediatrics/Neonatology, Sparrow Hospital - Neonatology, 1215 E Michigan Ave, Lansing MI 48912, Tel- 517-364-2591 Fax- 517-364-3994
| | - Rama Chaudhry
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India 110029
| |
Collapse
|
18
|
Wang ME, Patel AB, Hansen NI, Arlington L, Prakash A, Hibberd PL. Risk factors for possible serious bacterial infection in a rural cohort of young infants in central India. BMC Public Health 2016; 16:1097. [PMID: 27760543 PMCID: PMC5070173 DOI: 10.1186/s12889-016-3688-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 09/20/2016] [Indexed: 11/13/2022] Open
Abstract
Background Possible serious bacterial infection (PBSI) is a major cause of neonatal mortality worldwide. We studied risk factors for PSBI in a large rural population in central India where facility deliveries have increased as a result of a government financial assistance program. Methods We studied 37,379 pregnant women and their singleton live born infants with birth weight ≥ 1.5 kg from 20 rural primary health centers around Nagpur, India, using data from the 2010–13 population-based Maternal and Newborn Health Registry supported by NICHD’s Global Network for Women’s and Children’s Health Research. Factors associated with PSBI were identified using multivariable Poisson regression. Results Two thousand one hundred twenty-three infants (6 %) had PSBI. Risk factors for PSBI included nulliparity (RR 1.13, 95 % CI 1.03–1.23), parity > 2 (RR 1.30, 95 % CI 1.07–1.57) compared to parity 1–2, first antenatal care visit in the 2nd/3rd trimester (RR 1.46, 95 % CI 1.08–1.98) compared to 1st trimester, administration of antenatal corticosteroids (RR 2.04, 95 % CI 1.60–2.61), low birth weight (RR 3.10, 95 % CI 2.17–4.42), male sex (RR 1.20, 95 % CI 1.10–1.31) and lack of early initiation of breastfeeding (RR 3.87, 95 % CI 2.69–5.58). Conclusion Infants who are low birth weight, born to mothers who present late to antenatal care or receive antenatal corticosteroids, or born to nulliparous women or those with a parity > 2, could be targeted for interventions before and after delivery to improve early recognition of signs and symptoms of PSBI and prompt referral. There also appears to be a need for a renewed focus on promoting early initiation of breastfeeding following delivery in facilities. Trial registration This trial is registered at ClinicalTrials.gov (NCT01073475). Electronic supplementary material The online version of this article (doi:10.1186/s12889-016-3688-3) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Marie E Wang
- Division of Infectious Diseases, Department of Medicine, Boston Children's Hospital, Boston, MA, USA. .,Division of Global Health, Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA.
| | - Archana B Patel
- Lata Medical Research Foundation, Nagpur, Maharashtra, India
| | | | - Lauren Arlington
- Department of Global Health, Boston University School of Public Health, Boston University, Boston, MA, USA
| | - Amber Prakash
- Lata Medical Research Foundation, Nagpur, Maharashtra, India
| | - Patricia L Hibberd
- Department of Global Health, Boston University School of Public Health, Boston University, Boston, MA, USA
| |
Collapse
|
19
|
Weissman SJ, Hansen NI, Zaterka-Baxter K, Higgins RD, Stoll BJ. Emergence of Antibiotic Resistance-Associated Clones Among Escherichia coli Recovered From Newborns With Early-Onset Sepsis and Meningitis in the United States, 2008-2009. J Pediatric Infect Dis Soc 2016; 5:269-76. [PMID: 26407251 PMCID: PMC5125450 DOI: 10.1093/jpids/piv013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 02/24/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND Escherichia coli associated with early-onset sepsis (EOS) have historically been antibiotic-susceptible and K1-encapsulated. In the era of emerging antibiotic resistance, however, the clonal makeup of E coli associated with EOS has not been well characterized. METHODS Escherichia coli isolates were collected from 28 cases of EOS and early-onset meningitis (EOM) from April 2008 through December 2009, during a parent study conducted at National Institute of Child Health and Human Development Neonatal Research Network centers from February 2006 through December 2009. Clinical and microbiologic data were collected for the parent study. We applied polymerase chain reaction- and sequence-based molecular techniques to determine clonal, virulence-associated and antibiotic resistance-associated traits of the E coli isolates. RESULTS Among 28 E coli strains, phylogroup B2 strains predominated (68%), of which more than half were K1-encapsulated (53%). Phylogroup D strains were prominent as well (18%), but none were K1-encapsulated. Across the strain collection, the rate of ampicillin resistance was high (78%). The sole strain resistant to either extended-spectrum cephalosporins or fluoroquinolones represented ST131 H30-Rx, the multidrug-resistant subclone that has emerged worldwide in the last decade. This strain encoded extended-spectrum β-lactamase CTX-M-15 and carried an IncF plasmid of type F2:A1:B-. CONCLUSIONS In this collection of EOS/EOM-associated E coli isolates, we observed a high rate of ampicillin resistance, a low rate of fluoroquinolone resistance, and no aminoglycoside resistance, with resistance to third-generation cephalosporins appearing in only a single strain, from the worldwide emerging ST131 clone. Ongoing surveillance of antibiotic resistance among EOS isolates is warranted, to ensure that standard empiric regimens remain effective.
Collapse
Affiliation(s)
- Scott J. Weissman
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Washington
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences, RTI International, Research Triangle Park, North Carolina
| | - Kristen Zaterka-Baxter
- Social, Statistical and Environmental Sciences, RTI International, Research Triangle Park, North Carolina
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia,Children's Healthcare of Atlanta, Georgia,Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network, Bethesda, Maryland
| |
Collapse
|
20
|
Boghossian NS, Hansen NI, Bell EF, Brumbaugh JE, Stoll BJ, Laptook AR, Shankaran S, Wyckoff MH, Colaizy TT, Das A, Higgins RD. Outcomes of Extremely Preterm Infants Born to Insulin-Dependent Diabetic Mothers. Pediatrics 2016; 137:peds.2015-3424. [PMID: 27244849 PMCID: PMC4894251 DOI: 10.1542/peds.2015-3424] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/07/2016] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Little is known about in-hospital morbidities and neurodevelopmental outcomes among extremely preterm infants born to women with insulin-dependent diabetes mellitus (IDDM). We examined risks of mortality, in-hospital morbidities, and neurodevelopmental outcomes at 18 to 22 months' corrected age between extremely preterm infants of women with insulin use before pregnancy (IBP), with insulin use started during pregnancy (IDP), and without IDDM. METHODS Infants 22 to 28 weeks' gestation born or cared for at a Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network center (2006-2011) were studied. Regression models compared the association between maternal IDDM and timing of insulin use and the outcomes of the 3 groups. RESULTS Of 10 781 infants, 536 (5%) were born to women with IDDM; 58% had IBP, and 36% had IDP. Infants of mothers with IBP had higher risks of necrotizing enterocolitis (adjusted relative risk [RR] = 1.55 [95% confidence interval (CI) 1.17-2.05]) and late-onset sepsis (adjusted RR = 1.26 [95% CI 1.07-1.48]) than infants of mothers without IDDM. There was some indication of higher in-hospital mortality risk among infants of mothers with IBP compared with those with IDP (adjusted RR = 1.33 [95% CI 1.00-1.79]). Among survivors evaluated at 18 to 22 months' corrected age, average head circumference z score was lower for infants of mothers with IBP compared with those without IDDM, but there were no differences in risk of neurodevelopmental impairment. CONCLUSIONS In this cohort of extremely preterm infants, infants of mothers with IBP had higher risks of necrotizing enterocolitis, sepsis, and small head circumference.
Collapse
Affiliation(s)
- Nansi S. Boghossian
- Department of Epidemiology & Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina
| | - Nellie I. Hansen
- Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | | | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Abbot R. Laptook
- Department of Pediatrics, Brown University and Women & Infants Hospital of Rhode Island, Providence, Rhode Island
| | - Seetha Shankaran
- Department of Pediatrics, Wayne State University, Detroit, Michigan
| | - Myra H. Wyckoff
- Department of Pediatrics, University of Texas Southwestern Medical Center at Dallas, Parkland Health & Hospital System and Children’s Medical Center Dallas, Dallas, Texas
| | | | - Abhik Das
- Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville, Maryland; and
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | | |
Collapse
|
21
|
Althabe F, Thorsten V, Klein K, McClure EM, Hibberd PL, Goldenberg RL, Carlo WA, Garces A, Patel A, Pasha O, Chomba E, Krebs NF, Goudar S, Derman RJ, Esamai F, Liechty EA, Hansen NI, Meleth S, Wallace DD, Koso-Thomas M, Jobe AH, Buekens PM, Belizán JM. The Antenatal Corticosteroids Trial (ACT)'s explanations for neonatal mortality - a secondary analysis. Reprod Health 2016; 13:62. [PMID: 27220987 PMCID: PMC4878056 DOI: 10.1186/s12978-016-0175-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 05/05/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Antenatal Corticosteroid Trial assessed the feasibility, effectiveness, and safety of a multifaceted intervention to increase the use of antenatal corticosteroids (ACS) in mothers at risk of preterm birth at all levels of care in low and middle-income countries. The intervention effectively increased the use of ACS but was associated with an overall increase in neonatal deaths. We aimed to explore plausible pathways through which this intervention increased neonatal mortality. METHODS We conducted a series of secondary analyses to assess whether ACS or other components of the multifaceted intervention that might have affected the quality of care contributed to the increased mortality observed: 1) we compared the proportion of neonatal deaths receiving ACS between the intervention and control groups; 2) we compared the antenatal and delivery care process in all births between groups; 3) we compared the rates of possible severe bacterial infection between groups; and 4) we compared the frequency of factors related to ACS administration or maternal high risk conditions at administration between the babies who died and those who survived 28 days among all births in the intervention group identified as high risk for preterm birth and received ACS. RESULTS The ACS exposure among the infants who died up to 28 days was 29 % in the intervention group compared to 6 % in controls. No substantial differences were observed in antenatal and delivery care process between groups. The risk of pSBI plus neonatal death was significantly increased in intervention clusters compared to controls (2.4 % vs. 2.0 %, adjusted RR 1.17, 95 % CI 1.04-1.30, p = 0.008], primarily for infants with birth weight at or above the 25(th) percentile. Regarding factors related to ACS administration, term infants who died were more likely to have mothers who received ACS within 7 days of delivery compared to those who survived 28 days (26.5 % vs 17.9 %, p = 0.014), and their mothers were more likely to have been identified as high risk for hypertension and less likely for signs of preterm labor. CONCLUSIONS These results suggest that ACS more than other components of the intervention may have contributed to the overall increased neonatal mortality. ACS may have also been involved in the observed increased risk of neonatal infection and death. Further trials are urgently needed to clarify the effectiveness and safety of ACS on neonatal health in low resource settings.
Collapse
Affiliation(s)
- Fernando Althabe
- Institute for Clinical Effectiveness and Health Policy (IECS), Buenos Aires, Argentina.
| | | | - Karen Klein
- Institute for Clinical Effectiveness and Health Policy (IECS), Buenos Aires, Argentina
| | | | | | - Robert L Goldenberg
- Department of Obstetrics and Gynecology, Columbia University, New York, NY, USA
| | | | - Ana Garces
- Fundación para la Alimentación y Nutrición de Centro América y Panamá, Guatemala City, Guatemala
| | - Archana Patel
- Lata Medical Research Foundation, Indira Gandhi Government Medical College, Nagpur, India
| | - Omrana Pasha
- Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan
| | | | - Nancy F Krebs
- University of Colorado School of Medicine, Denver, CO, USA
| | - Shivaprasad Goudar
- KLE University's Jawaharlal Nehru Medical College, Belgaum, Karnataka, India
| | | | | | | | | | | | | | - Marion Koso-Thomas
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - Alan H Jobe
- Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Pierre M Buekens
- Tulane School of Public Health & Tropical Medicine, New Orleans, LA, USA
| | - José M Belizán
- Institute for Clinical Effectiveness and Health Policy (IECS), Buenos Aires, Argentina
| |
Collapse
|
22
|
Hibberd PL, Hansen NI, Wang ME, Goudar SS, Pasha O, Esamai F, Chomba E, Garces A, Althabe F, Derman RJ, Goldenberg RL, Liechty EA, Carlo WA, Hambidge KM, Krebs NF, Buekens P, McClure EM, Koso-Thomas M, Patel AB. Trends in the incidence of possible severe bacterial infection and case fatality rates in rural communities in Sub-Saharan Africa, South Asia and Latin America, 2010-2013: a multicenter prospective cohort study. Reprod Health 2016; 13:65. [PMID: 27221099 PMCID: PMC4877736 DOI: 10.1186/s12978-016-0177-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 05/05/2016] [Indexed: 11/24/2022] Open
Abstract
Background Possible severe bacterial infections (pSBI) continue to be a leading cause of global neonatal mortality annually. With the recent publications of simplified antibiotic regimens for treatment of pSBI where referral is not possible, it is important to know how and where to target these regimens, but data on the incidence and outcomes of pSBI are limited. Methods We used data prospectively collected at 7 rural community-based sites in 6 low and middle income countries participating in the NICHD Global Network’s Maternal and Newborn Health Registry, between January 1, 2010 and December 31, 2013. Participants included pregnant women and their live born neonates followed for 6 weeks after delivery and assessed for maternal and infant outcomes. Results In a cohort of 248,539 infants born alive between 2010 and 2013, 32,088 (13 %) neonates met symptomatic criteria for pSBI. The incidence of pSBI during the first 6 weeks of life varied 10 fold from 3 % (Zambia) to 36 % (Pakistan), and overall case fatality rates varied 8 fold from 5 % (Kenya) to 42 % (Zambia). Significant variations in incidence of pSBI during the study period, with proportions decreasing in 3 sites (Argentina, Kenya and Nagpur, India), remaining stable in 3 sites (Zambia, Guatemala, Belgaum, India) and increasing in 1 site (Pakistan), cannot be explained solely by changing rates of facility deliveries. Case fatality rates did not vary over time. Conclusions In a prospective population based registry with trained data collectors, there were wide variations in the incidence and case fatality of pSBI in rural communities and in trends over time. Regardless of these variations, the burden of pSBI is still high and strategies to implement timely diagnosis and treatment are still urgently needed to reduce neonatal mortality. Trial registration The study was registered at ClinicalTrials.gov (NCT01073475).
Collapse
Affiliation(s)
| | - Nellie I Hansen
- RTI International, Research Triangle Park, North Carolina, USA
| | - Marie E Wang
- Massachusetts General Hospital for Children, Boston, MA, USA
| | | | | | | | | | - Ana Garces
- Institute of Nutrition of Central America and Panama (INCAP), Guatemala City, Guatemala
| | - Fernando Althabe
- Institute for Clinical Effectiveness and Health Policy, Buenos Aires, Argentina
| | | | | | | | | | | | - Nancy F Krebs
- University of Colorado Health Sciences Center, Denver, CO, USA
| | - Pierre Buekens
- Tulane School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | | | - Marion Koso-Thomas
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | | |
Collapse
|
23
|
Wortham JM, Hansen NI, Schrag SJ, Hale E, Van Meurs K, Sánchez PJ, Cantey JB, Faix R, Poindexter B, Goldberg R, Bizzarro M, Frantz I, Das A, Benitz WE, Shane AL, Higgins R, Stoll BJ. Chorioamnionitis and Culture-Confirmed, Early-Onset Neonatal Infections. Pediatrics 2016; 137:peds.2015-2323. [PMID: 26719293 PMCID: PMC4702021 DOI: 10.1542/peds.2015-2323] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/14/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Current guidelines for prevention of neonatal group B streptococcal disease recommend diagnostic evaluations and empirical antibiotic therapy for well-appearing, chorioamnionitis-exposed newborns. Some clinicians question these recommendations, citing the decline in early-onset group B streptococcal disease rates since widespread intrapartum antibiotic prophylaxis implementation and potential antibiotic risks. We aimed to determine whether chorioamnionitis-exposed newborns with culture-confirmed, early-onset infections can be asymptomatic at birth. METHODS Multicenter, prospective surveillance for early-onset neonatal infections was conducted during 2006-2009. Early-onset infection was defined as isolation of a pathogen from blood or cerebrospinal fluid collected ≤ 72 hours after birth. Maternal chorioamnionitis was defined by clinical diagnosis in the medical record or by histologic diagnosis by placental pathology. Hospital records of newborns with early-onset infections born to mothers with chorioamnionitis were reviewed retrospectively to determine symptom onset. RESULTS Early-onset infections were diagnosed in 389 of 396,586 live births, including 232 (60%) chorioamnionitis-exposed newborns. Records for 229 were reviewed; 29 (13%) had no documented symptoms within 6 hours of birth, including 21 (9%) who remained asymptomatic at 72 hours. Intrapartum antibiotic prophylaxis exposure did not differ significantly between asymptomatic and symptomatic infants (76% vs 69%; P = .52). Assuming complete guideline implementation, we estimated that 60 to 1400 newborns would receive diagnostic evaluations and antibiotics for each infected asymptomatic newborn, depending on chorioamnionitis prevalence. CONCLUSIONS Some infants born to mothers with chorioamnionitis may have no signs of sepsis at birth despite having culture-confirmed infections. Implementation of current clinical guidelines may result in early diagnosis, but large numbers of uninfected asymptomatic infants would be treated.
Collapse
Affiliation(s)
- Jonathan M. Wortham
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Nellie I. Hansen
- Social, Statistical, and Environmental Sciences, RTI International, Research Triangle Park, North Carolina
| | - Stephanie J. Schrag
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Ellen Hale
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia;,Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Krisa Van Meurs
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, California
| | - Pablo J. Sánchez
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Joseph B. Cantey
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Roger Faix
- Division of Neonatology, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah
| | - Brenda Poindexter
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ronald Goldberg
- Department of Pediatrics, Duke University, Durham, North Carolina
| | - Matthew Bizzarro
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut
| | - Ivan Frantz
- Department of Pediatrics, Floating Hospital for Children, Tufts Medical Center, Boston, Massachusetts; and
| | - Abhik Das
- Social, Statistical, and Environmental Sciences, RTI International, Rockville, Maryland
| | - William E. Benitz
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, California
| | - Andi L. Shane
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia;,Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Rosemary Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia;,Children’s Healthcare of Atlanta, Atlanta, Georgia
| | | |
Collapse
|
24
|
Stoll BJ, Hansen NI, Bell EF, Walsh MC, Carlo WA, Shankaran S, Laptook AR, Sánchez PJ, Van Meurs KP, Wyckoff M, Das A, Hale EC, Ball MB, Newman NS, Schibler K, Poindexter BB, Kennedy KA, Cotten CM, Watterberg KL, D’Angio CT, DeMauro SB, Truog WE, Devaskar U, Higgins RD. Trends in Care Practices, Morbidity, and Mortality of Extremely Preterm Neonates, 1993-2012. JAMA 2015; 314:1039-51. [PMID: 26348753 PMCID: PMC4787615 DOI: 10.1001/jama.2015.10244] [Citation(s) in RCA: 1726] [Impact Index Per Article: 191.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Extremely preterm infants contribute disproportionately to neonatal morbidity and mortality. OBJECTIVE To review 20-year trends in maternal/neonatal care, complications, and mortality among extremely preterm infants born at Neonatal Research Network centers. DESIGN, SETTING, PARTICIPANTS Prospective registry of 34,636 infants, 22 to 28 weeks' gestation, birth weight of 401 to 1500 g, and born at 26 network centers between 1993 and 2012. EXPOSURES Extremely preterm birth. MAIN OUTCOMES AND MEASURES Maternal/neonatal care, morbidities, and survival. Major morbidities, reported for infants who survived more than 12 hours, were severe necrotizing enterocolitis, infection, bronchopulmonary dysplasia, severe intracranial hemorrhage, cystic periventricular leukomalacia, and/or severe retinopathy of prematurity. Regression models assessed yearly changes and were adjusted for study center, race/ethnicity, gestational age, birth weight for gestational age, and sex. RESULTS Use of antenatal corticosteroids increased from 1993 to 2012 (24% [348 of 1431 infants]) to 87% (1674 of 1919 infants]; P < .001), as did cesarean delivery (44% [625 of 1431 births] to 64% [1227 of 1921]; P < .001). Delivery room intubation decreased from 80% (1144 of 1433 infants) in 1993 to 65% (1253 of 1922) in 2012 (P < .001). After increasing in the 1990s, postnatal steroid use declined to 8% (141 of 1757 infants) in 2004 (P < .001), with no significant change thereafter. Although most infants were ventilated, continuous positive airway pressure without ventilation increased from 7% (120 of 1666 infants) in 2002 to 11% (190 of 1756 infants) in 2012 (P < .001). Despite no improvement from 1993 to 2004, rates of late-onset sepsis declined between 2005 and 2012 for infants of each gestational age (median, 26 weeks [37% {109 of 296} to 27% {85 of 320}]; adjusted relative risk [RR], 0.93 [95% CI, 0.92-0.94]). Rates of other morbidities declined, but bronchopulmonary dysplasia increased between 2009 and 2012 for infants at 26 to 27 weeks' gestation (26 weeks, 50% [130 of 258] to 55% [164 of 297]; P < .001). Survival increased between 2009 and 2012 for infants at 23 weeks' gestation (27% [41 of 152] to 33% [50 of 150]; adjusted RR, 1.09 [95% CI, 1.05-1.14]) and 24 weeks (63% [156 of 248] to 65% [174 of 269]; adjusted RR, 1.05 [95% CI, 1.03-1.07]), with smaller relative increases for infants at 25 and 27 weeks' gestation, and no change for infants at 22, 26, and 28 weeks' gestation. Survival without major morbidity increased approximately 2% per year for infants at 25 to 28 weeks' gestation, with no change for infants at 22 to 24 weeks' gestation. CONCLUSIONS AND RELEVANCE Among extremely preterm infants born at US academic centers over the last 20 years, changes in maternal and infant care practices and modest reductions in several morbidities were observed, although bronchopulmonary dysplasia increased. Survival increased most markedly for infants born at 23 and 24 weeks' gestation and survival without major morbidity increased for infants aged 25 to 28 weeks. These findings may be valuable in counseling families and developing novel interventions. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00063063.
Collapse
MESH Headings
- Adrenal Cortex Hormones/therapeutic use
- Adult
- Bronchopulmonary Dysplasia/epidemiology
- Cesarean Section/statistics & numerical data
- Cesarean Section/trends
- Continuous Positive Airway Pressure/statistics & numerical data
- Continuous Positive Airway Pressure/trends
- Enterocolitis, Necrotizing/epidemiology
- Female
- Gestational Age
- Humans
- Infant, Extremely Premature
- Infant, Newborn
- Infant, Premature
- Infant, Premature, Diseases/epidemiology
- Infant, Premature, Diseases/mortality
- Infant, Premature, Diseases/therapy
- Infections/epidemiology
- Intensive Care, Neonatal/statistics & numerical data
- Intracranial Hemorrhages/epidemiology
- Leukomalacia, Periventricular/epidemiology
- Male
- Pregnancy
- Retinopathy of Prematurity/epidemiology
- Survival Analysis
- United States/epidemiology
Collapse
Affiliation(s)
- Barbara J. Stoll
- Emory University School of Medicine, Department of Pediatrics, Children’s Healthcare of Atlanta, Atlanta, GA
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, NC
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, IA
| | - Michele C. Walsh
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH
| | - Waldemar A. Carlo
- Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL
| | | | - Abbot R. Laptook
- Department of Pediatrics, Women & Infants Hospital, Brown University, Providence, RI
| | - Pablo J. Sánchez
- Department of Pediatrics, Center for Perinatal Research, Nationwide Children’s Hospital, The Ohio State University, Columbus, OH
| | - Krisa P. Van Meurs
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, CA
| | - Myra Wyckoff
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX
| | - Abhik Das
- Social, Statistical and Environmental Sciences Unit, RTI International, Rockville, MD
| | - Ellen C. Hale
- Emory University School of Medicine, Department of Pediatrics, Children’s Healthcare of Atlanta, Atlanta, GA
| | - M. Bethany Ball
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, CA
| | - Nancy S. Newman
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH
| | - Kurt Schibler
- Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Brenda B. Poindexter
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN
| | - Kathleen A. Kennedy
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, TX
| | | | | | - Carl T. D’Angio
- University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Sara B. DeMauro
- Department of Pediatrics, University of Pennsylvania, Philadelphia, PA
| | - William E. Truog
- Department of Pediatrics, Children’s Mercy Hospital, Kansas City, MO
| | - Uday Devaskar
- Department of Pediatrics, University of California, Los Angeles, CA
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| |
Collapse
|
25
|
Bukowski R, Hansen NI, Willinger M, Reddy UM, Parker CB, Pinar H, Silver RM, Dudley DJ, Stoll BJ, Saade GR, Koch MA, Rowland Hogue CJ, Varner MW, Conway DL, Coustan D, Goldenberg RL. Fetal growth and risk of stillbirth: a population-based case-control study. PLoS Med 2014; 11:e1001633. [PMID: 24755550 PMCID: PMC3995658 DOI: 10.1371/journal.pmed.1001633] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 03/11/2014] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Stillbirth is strongly related to impaired fetal growth. However, the relationship between fetal growth and stillbirth is difficult to determine because of uncertainty in the timing of death and confounding characteristics affecting normal fetal growth. METHODS AND FINDINGS We conducted a population-based case-control study of all stillbirths and a representative sample of live births in 59 hospitals in five geographic areas in the US. Fetal growth abnormalities were categorized as small for gestational age (SGA) (<10th percentile) or large for gestational age (LGA) (>90th percentile) at death (stillbirth) or delivery (live birth) using population, ultrasound, and individualized norms. Gestational age at death was determined using an algorithm that considered the time-of-death interval, postmortem examination, and reliability of the gestational age estimate. Data were weighted to account for the sampling design and differential participation rates in various subgroups. Among 527 singleton stillbirths and 1,821 singleton live births studied, stillbirth was associated with SGA based on population, ultrasound, and individualized norms (odds ratio [OR] [95% CI]: 3.0 [2.2 to 4.0]; 4.7 [3.7 to 5.9]; 4.6 [3.6 to 5.9], respectively). LGA was also associated with increased risk of stillbirth using ultrasound and individualized norms (OR [95% CI]: 3.5 [2.4 to 5.0]; 2.3 [1.7 to 3.1], respectively), but not population norms (OR [95% CI]: 0.6 [0.4 to 1.0]). The associations were stronger with more severe SGA and LGA (<5th and >95th percentile). Analyses adjusted for stillbirth risk factors, subset analyses excluding potential confounders, and analyses in preterm and term pregnancies showed similar patterns of association. In this study 70% of cases and 63% of controls agreed to participate. Analysis weights accounted for differences between consenting and non-consenting women. Some of the characteristics used for individualized fetal growth estimates were missing and were replaced with reference values. However, a sensitivity analysis using individualized norms based on the subset of stillbirths and live births with non-missing variables showed similar findings. CONCLUSIONS Stillbirth is associated with both growth restriction and excessive fetal growth. These findings suggest that, contrary to current practices and recommendations, stillbirth prevention strategies should focus on both severe SGA and severe LGA pregnancies. Please see later in the article for the Editors' Summary.
Collapse
Affiliation(s)
- Radek Bukowski
- University of Texas Medical Branch at Galveston, United States of America
- * E-mail:
| | - Nellie I. Hansen
- RTI International, Research Triangle Park, North Carolina, United States of America
| | - Marian Willinger
- The Pregnancy and Perinatology Branch, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Uma M. Reddy
- The Pregnancy and Perinatology Branch, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Corette B. Parker
- RTI International, Research Triangle Park, North Carolina, United States of America
| | - Halit Pinar
- Brown University School of Medicine, Providence, Rhode Island, United States of America
| | - Robert M. Silver
- University of Utah School of Medicine and Intermountain Health Care, Salt Lake City, Utah, United States of America
| | - Donald J. Dudley
- University of Texas Health Science Center at San Antonio, United States of America
| | - Barbara J. Stoll
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia, United States of America
| | - George R. Saade
- University of Texas Medical Branch at Galveston, United States of America
| | - Matthew A. Koch
- RTI International, Research Triangle Park, North Carolina, United States of America
| | - Carol J. Rowland Hogue
- Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Michael W. Varner
- University of Utah School of Medicine and Intermountain Health Care, Salt Lake City, Utah, United States of America
| | - Deborah L. Conway
- University of Texas Health Science Center at San Antonio, United States of America
| | - Donald Coustan
- Brown University School of Medicine, Providence, Rhode Island, United States of America
| | - Robert L. Goldenberg
- Columbia University Medical Center, New York, New York, United States of America
| | | |
Collapse
|
26
|
Boghossian NS, Hansen NI, Bell EF, Stoll BJ, Murray JC, Carey JC, Adams-Chapman I, Shankaran S, Walsh MC, Laptook AR, Faix RG, Newman NS, Hale EC, Das A, Wilson LD, Hensman AM, Grisby C, Collins MV, Vasil DM, Finkle J, Maffett D, Ball MB, Lacy CB, Bara R, Higgins RD. Mortality and morbidity of VLBW infants with trisomy 13 or trisomy 18. Pediatrics 2014; 133:226-35. [PMID: 24446439 PMCID: PMC3904274 DOI: 10.1542/peds.2013-1702] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE Little is known about how very low birth weight (VLBW) affects survival and morbidities among infants with trisomy 13 (T13) or trisomy 18 (T18). We examined the care plans for VLBW infants with T13 or T18 and compared their risks of mortality and neonatal morbidities with VLBW infants with trisomy 21 and VLBW infants without birth defects. METHODS Infants with birth weight 401 to 1500 g born or cared for at a participating center of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network during the period 1994-2009 were studied. Poisson regression models were used to examine risk of death and neonatal morbidities among infants with T13 or T18. RESULTS Of 52,262 VLBW infants, 38 (0.07%) had T13 and 128 (0.24%) had T18. Intensity of care in the delivery room varied depending on whether the trisomy was diagnosed before or after birth. The plan for subsequent care for the majority of the infants was to withdraw care or to provide comfort care. Eleven percent of infants with T13 and 9% of infants with T18 survived to hospital discharge. Survivors with T13 or T18 had significantly increased risk of patent ductus arteriosus and respiratory distress syndrome compared with infants without birth defects. No infant with T13 or T18 developed necrotizing enterocolitis. CONCLUSIONS In this cohort of liveborn VLBW infants with T13 or T18, the timing of trisomy diagnosis affected the plan for care, survival was poor, and death usually occurred early.
Collapse
Affiliation(s)
- Nansi S. Boghossian
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | | | - John C. Carey
- Department of Pediatrics, University of Utah, Salt Lake City, Utah
| | - Ira Adams-Chapman
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Seetha Shankaran
- Department of Pediatrics, Wayne State University, Detroit, Michigan
| | - Michele C. Walsh
- Department of Pediatrics, Case Western Reserve University and Rainbow Babies & Children’s Hospital, Cleveland, Ohio
| | - Abbot R. Laptook
- Department of Pediatrics, Brown University and Women & Infants Hospital of Rhode Island, Providence, Rhode Island
| | - Roger G. Faix
- Department of Pediatrics, University of Utah, Salt Lake City, Utah
| | - Nancy S. Newman
- Department of Pediatrics, Case Western Reserve University and Rainbow Babies & Children’s Hospital, Cleveland, Ohio
| | - Ellen C. Hale
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Abhik Das
- Social, Statistical and Environmental Sciences Unit, RTI International, Rockville, Maryland
| | - Leslie D. Wilson
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Angelita M. Hensman
- Department of Pediatrics, Brown University and Women & Infants Hospital of Rhode Island, Providence, Rhode Island
| | - Cathy Grisby
- Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Monica V. Collins
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Diana M. Vasil
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Joanne Finkle
- Department of Pediatrics, Duke University, Durham, North Carolina
| | - Deanna Maffett
- Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - M. Bethany Ball
- Department of Pediatrics, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, California; and
| | - Conra B. Lacy
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Rebecca Bara
- Department of Pediatrics, Wayne State University, Detroit, Michigan
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | | |
Collapse
|
27
|
Bell EF, Hansen NI, Brion LP, Ehrenkranz RA, Kennedy KA, Walsh MC, Shankaran S, Acarregui MJ, Johnson KJ, Hale EC, Messina LA, Crawford MM, Laptook AR, Goldberg RN, Van Meurs KP, Carlo WA, Poindexter BB, Faix RG, Carlton DP, Watterberg KL, Ellsbury DL, Das A, Higgins RD. Serum tocopherol levels in very preterm infants after a single dose of vitamin E at birth. Pediatrics 2013; 132:e1626-33. [PMID: 24218460 PMCID: PMC3838534 DOI: 10.1542/peds.2013-1684] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/16/2013] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE Our aim was to examine the impact of a single enteral dose of vitamin E on serum tocopherol levels. The study was undertaken to see whether a single dose of vitamin E soon after birth can rapidly increase the low α-tocopherol levels seen in very preterm infants. If so, this intervention could be tested as a means of reducing the risk of intracranial hemorrhage. METHODS Ninety-three infants <27 weeks' gestation and <1000 g were randomly assigned to receive a single dose of vitamin E or placebo by gastric tube within 4 hours of birth. The vitamin E group received 50 IU/kg of vitamin E as dl-α-tocopheryl acetate (Aquasol E). The placebo group received sterile water. Blood samples were taken for measurement of serum tocopherol levels by high-performance liquid chromatography before dosing and 24 hours and 7 days after dosing. RESULTS Eighty-eight infants received the study drug and were included in the analyses. The α-tocopherol levels were similar between the groups at baseline but higher in the vitamin E group at 24 hours (median 0.63 mg/dL vs. 0.42 mg/dL, P = .003) and 7 days (2.21 mg/dL vs 1.86 mg/dL, P = .04). There were no differences between groups in γ-tocopherol levels. At 24 hours, 30% of vitamin E infants and 62% of placebo infants had α-tocopherol levels <0.5 mg/dL. CONCLUSIONS A 50-IU/kg dose of vitamin E raised serum α-tocopherol levels, but to consistently achieve α-tocopherol levels >0.5 mg/dL, a higher dose or several doses of vitamin E may be needed.
Collapse
Affiliation(s)
- Edward F Bell
- Department of Pediatrics, University of Iowa, 200 Hawkins Dr, Iowa City, IA 52242.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Adams-Chapman I, Hansen NI, Shankaran S, Bell EF, Boghossian NS, Murray JC, Laptook AR, Walsh MC, Carlo WA, Sánchez PJ, Van Meurs KP, Das A, Hale EC, Newman NS, Ball MB, Higgins RD, Stoll BJ. Ten-year review of major birth defects in VLBW infants. Pediatrics 2013; 132:49-61. [PMID: 23733791 PMCID: PMC3691532 DOI: 10.1542/peds.2012-3111] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Birth defects (BDs) are an important cause of infant mortality and disproportionately occur among low birth weight infants. We determined the prevalence of BDs in a cohort of very low birth weight (VLBW) infants cared for at the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network (NRN) centers over a 10-year period and examined the relationship between anomalies, neonatal outcomes, and surgical care. METHODS Infant and maternal data were collected prospectively for infants weighing 401 to 1500 g at NRN sites between January 1, 1998, and December 31, 2007. Poisson regression models were used to compare risk of outcomes for infants with versus without BDs while adjusting for gestational age and other characteristics. RESULTS A BD was present in 1776 (4.8%) of the 37 262 infants in our VLBW cohort. Yearly prevalence of BDs increased from 4.0% of infants born in 1998 to 5.6% in 2007, P < .001. Mean gestational age overall was 28 weeks, and mean birth weight was 1007 g. Infants with BDs were more mature but more likely to be small for gestational age compared with infants without BDs. Chromosomal and cardiovascular anomalies were most frequent with each occurring in 20% of affected infants. Mortality was higher among infants with BDs (49% vs 18%; adjusted relative risk: 3.66 [95% confidence interval: 3.41-3.92]; P < .001) and varied by diagnosis. Among those surviving >3 days, more infants with BDs underwent major surgery (48% vs 13%, P < .001). CONCLUSIONS Prevalence of BDs increased during the 10 years studied. BDs remain an important cause of neonatal morbidity and mortality among VLBW infants.
Collapse
Affiliation(s)
- Ira Adams-Chapman
- Department of Pediatrics, Emory University School of Medicine, and Children’s Healthcare of Atlanta, Atlanta, GA, USA.
| | - Nellie I. Hansen
- Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
| | - Seetha Shankaran
- Department of Pediatrics, Wayne State University, Detroit, Michigan
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | | | | | - Abbot R. Laptook
- Department of Pediatrics, Women & Infants’ Hospital, Brown University, Providence, Rhode Island
| | - Michele C. Walsh
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Waldemar A. Carlo
- Division of Neonatology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Pablo J. Sánchez
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Krisa P. Van Meurs
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children’s Hospital, Palo Alto, California
| | - Abhik Das
- Social, Statistical and Environmental Sciences Unit, RTI International, Rockville, Maryland; and
| | - Ellen C. Hale
- Department of Pediatrics, Emory University School of Medicine, and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Nancy S. Newman
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | - M. Bethany Ball
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine, and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | | |
Collapse
|
29
|
Wynn JL, Hansen NI, Das A, Cotten CM, Goldberg RN, Sánchez PJ, Bell EF, Van Meurs KP, Carlo WA, Laptook AR, Higgins RD, Benjamin DK, Stoll BJ. Early sepsis does not increase the risk of late sepsis in very low birth weight neonates. J Pediatr 2013; 162:942-8.e1-3. [PMID: 23295144 PMCID: PMC3622770 DOI: 10.1016/j.jpeds.2012.11.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 10/05/2012] [Accepted: 11/07/2012] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To examine whether preterm very low birth weight (VLBW) infants have an increased risk of late-onset sepsis (LOS) following early-onset sepsis (EOS). STUDY DESIGN Retrospective analysis of VLBW infants (401-1500 g) born September 1998 through December 2009 who survived >72 hours and were cared for within the National Institute of Child Health and Human Development Neonatal Research Network. Sepsis was defined by growth of bacteria or fungi in a blood culture obtained ≤ 72 hours of birth (EOS) or >72 hours (LOS) and antimicrobial therapy for ≥ 5 days or death <5 days while receiving therapy. Regression models were used to assess risk of death or LOS by 120 days and LOS by 120 days among survivors to discharge or 120 days, adjusting for gestational age and other covariates. RESULTS Of 34,396 infants studied, 504 (1.5%) had EOS. After adjustment, risk of death or LOS by 120 days did not differ overall for infants with EOS compared with those without EOS [risk ratio (RR): 0.99 (0.89-1.09)] but was reduced in infants born at <25 weeks gestation [RR: 0.87 (0.76-0.99), P = .048]. Among survivors, no difference in LOS risk was found overall for infants with versus without EOS [RR: 0.88 (0.75-1.02)], but LOS risk was reduced in infants with birth weight 401-750 g who had EOS [RR: 0.80 (0.64-0.99), P = .047]. CONCLUSIONS Risk of LOS after EOS was not increased in VLBW infants. Surprisingly, risk of LOS following EOS appeared to be reduced in the smallest, most premature infants, underscoring the need for age-specific analyses of immune function.
Collapse
Affiliation(s)
- James L Wynn
- Department of Pediatrics, Vanderbilt University, Nashville, TN, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Conway DL, Hansen NI, Dudley DJ, Parker CB, Reddy UM, Silver RM, Bukowski R, Pinar H, Stoll BJ, Varner MW, Saade GR, Hogue C, Willinger M, Coustan D, Koch MA, Goldenberg RL. An algorithm for the estimation of gestational age at the time of fetal death. Paediatr Perinat Epidemiol 2013; 27:145-57. [PMID: 23374059 PMCID: PMC3564237 DOI: 10.1111/ppe.12037] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Accurate assignment of gestational age (GA) at time of fetal death is important for research and clinical practice. An algorithm to estimate GA at fetal death was developed and evaluated. METHODS The algorithm developed by the Stillbirth Collaborative Research Network (SCRN) incorporated clinical and post-mortem data. The SCRN conducted a population-based case-control study of women with stillbirths and livebirths from 2006 to 2008 in five geographical catchment areas. Rules were developed to estimate a due date, identify an interval during which death likely occurred, and estimate GA at the time of fetal death. Reliability of using fetal foot length to estimate GA at death was assessed. RESULTS The due date estimated for 620 singleton stillbirths studied was considered clinically reliable for 87%. Only 25.2% of stillbirths were documented alive within 2 days before diagnosis and 47.6% within 1 week of diagnosis. The algorithm-derived estimate of GA at time of fetal death was one or more weeks earlier than the GA at delivery for 43.5% of stillbirths. GA estimated from fetal foot length agreed with GA by algorithm within 2 weeks for 75% within a subset of well-dated stillbirths. CONCLUSIONS Precise assignment of GA at death, defined as reliable dating criteria and a short interval (≤1 week) during which fetal death was known to have occurred, was possible in 46.6% of cases. Fetal foot length is a relatively accurate measure of GA at death and should be collected in all stillbirth cases.
Collapse
Affiliation(s)
| | | | | | | | - Uma M. Reddy
- Pregnancy and Perinatology Branch, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Robert M. Silver
- University of Utah School of Medicine and Intermountain Health Care, Salt Lake City
| | | | - Halit Pinar
- Brown University School of Medicine, Providence, Rhode Island
| | | | - Michael W. Varner
- University of Utah School of Medicine and Intermountain Health Care, Salt Lake City
| | | | - Carol Hogue
- Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Marian Willinger
- Pregnancy and Perinatology Branch, the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Donald Coustan
- Brown University School of Medicine, Providence, Rhode Island
| | | | | | | |
Collapse
|
31
|
Pappas A, Shankaran S, Hansen NI, Bell EF, Stoll BJ, Laptook AR, Walsh MC, Das A, Bara R, Hale EC, Newman NS, Boghossian NS, Murray JC, Cotten CM, Adams-Chapman I, Hamrick S, Higgins RD. Outcome of extremely preterm infants (<1,000 g) with congenital heart defects from the National Institute of Child Health and Human Development Neonatal Research Network. Pediatr Cardiol 2012; 33:1415-26. [PMID: 22644414 PMCID: PMC3687358 DOI: 10.1007/s00246-012-0375-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Accepted: 05/08/2012] [Indexed: 10/28/2022]
Abstract
Little is known about the outcomes of extremely low birth weight (ELBW) preterm infants with congenital heart defects (CHDs). The aim of this study was to assess the mortality, morbidity, and early childhood outcomes of ELBW infants with isolated CHD compared with infants with no congenital defects. Participants were 401-1,000 g infants cared for at National Institute of Child Health and Human Development Neonatal Research Network centers between January 1, 1998, and December 31, 2005. Neonatal morbidities and 18-22 months' corrected age outcomes were assessed. Neurodevelopmental impairment (NDI) was defined as moderate to severe cerebral palsy, Bayley II mental or psychomotor developmental index <70, bilateral blindness, or hearing impairment requiring aids. Poisson regression models were used to estimate relative risks for outcomes while adjusting for gestational age, small-for-gestational-age status, and other variables. Of 14,457 ELBW infants, 110 (0.8 %) had isolated CHD, and 13,887 (96 %) had no major birth defect. The most common CHD were septal defects, tetralogy of Fallot, pulmonary valve stenosis, and coarctation of the aorta. Infants with CHD experienced increased mortality (48 % compared with 35 % for infants with no birth defect) and poorer growth. Surprisingly, the adjusted risks of other short-term neonatal morbidities associated with prematurity were not significantly different. Fifty-seven (52 %) infants with CHD survived to 18-22 months' corrected age, and 49 (86 %) infants completed follow-up. A higher proportion of surviving infants with CHD were impaired compared with those without birth defects (57 vs. 38 %, p = 0.004). Risk of death or NDI was greater for ELBW infants with CHD, although 20 % of infants survived without NDI.
Collapse
Affiliation(s)
- Athina Pappas
- Department of Pediatrics, Children's Hospital of Michigan and Hutzel Women's Hospital, Wayne State University, 3901 Beaubien, Detroit, MI 48201, USA.
| | | | - Nellie I. Hansen
- Statistics and Epidemiology Unit, RTI International, Research Triangle Park, NC
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa Children’s Hospital, Iowa City, IA
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, GA
| | - Abbot R. Laptook
- Department of Pediatrics, Women & Infants’ Hospital, Brown University, Providence, RI
| | - Michele C. Walsh
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH
| | - Abhik Das
- Statistics and Epidemiology Unit, RTI International, Rockville, MD
| | - Rebecca Bara
- Department of Pediatrics, Wayne State University, Detroit, MI
| | - Ellen C. Hale
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, GA
| | - Nancy S. Newman
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH
| | - Nansi S. Boghossian
- Department of Pediatrics, University of Iowa Children’s Hospital, Iowa City, IA
| | - Jeffrey C. Murray
- Department of Pediatrics, University of Iowa Children’s Hospital, Iowa City, IA
| | | | - Ira Adams-Chapman
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, GA
| | - Shannon Hamrick
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, GA
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| |
Collapse
|
32
|
Shane AL, Hansen NI, Stoll BJ, Bell EF, Sánchez PJ, Shankaran S, Laptook AR, Das A, Walsh MC, Hale EC, Newman NS, Schrag SJ, Higgins RD. Methicillin-resistant and susceptible Staphylococcus aureus bacteremia and meningitis in preterm infants. Pediatrics 2012; 129:e914-22. [PMID: 22412036 PMCID: PMC3313632 DOI: 10.1542/peds.2011-0966] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Data are limited on the impact of methicillin-resistant Staphylococcus aureus (MRSA) on morbidity and mortality among very low birth weight (VLBW) infants with S aureus (SA) bacteremia and/or meningitis (B/M). METHODS Neonatal data for VLBW infants (birth weight 401-1500 g) born January 1, 2006, to December 31, 2008, who received care at centers of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network were collected prospectively. Early-onset (≤72 hours after birth) and late-onset (>72 hours) infections were defined by blood or cerebrospinal fluid cultures and antibiotic treatment of ≥5 days (or death <5 days with intent to treat). Outcomes were compared for infants with MRSA versus methicillin-susceptible S aureus (MSSA) B/M. RESULTS Of 8444 infants who survived >3 days, 316 (3.7%) had SA B/M. Eighty-eight had MRSA (1% of all infants, 28% of infants with SA); 228 had MSSA (2.7% of all infants, 72% of infants with SA). No infant had both MRSA and MSSA B/M. Ninety-nine percent of MRSA infections were late-onset. The percent of infants with MRSA varied by center (P < .001) with 9 of 20 centers reporting no cases. Need for mechanical ventilation, diagnosis of respiratory distress syndrome, necrotizing enterocolitis, and other morbidities did not differ between infants with MRSA and MSSA. Mortality was high with both MRSA (23 of 88, 26%) and MSSA (55 of 228, 24%). CONCLUSIONS Few VLBW infants had SA B/M. The 1% with MRSA had morbidity and mortality rates similar to infants with MSSA. Practices should provide equal focus on prevention and management of both MRSA and MSSA infections among VLBW infants.
Collapse
Affiliation(s)
- Andi L. Shane
- Department of Pediatrics, Emory University School of Medicine, and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Nellie I. Hansen
- Statistics and Epidemiology Unit, RTI International, Research Triangle Park, North Carolina
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine, and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | - Pablo J. Sánchez
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Seetha Shankaran
- Department of Pediatrics, Wayne State University, Detroit, Michigan
| | - Abbot R. Laptook
- Department of Pediatrics, Women & Infants Hospital, Brown University, Providence, Rhode Island
| | - Abhik Das
- Statistics and Epidemiology Unit, RTI International, Rockville, Maryland
| | - Michele C. Walsh
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Ellen C. Hale
- Department of Pediatrics, Emory University School of Medicine, and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Nancy S. Newman
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | | | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | | |
Collapse
|
33
|
Cole CR, Hansen NI, Higgins RD, Bell EF, Shankaran S, Laptook AR, Walsh MC, Hale EC, Newman NS, Das A, Stoll BJ. Bloodstream infections in very low birth weight infants with intestinal failure. J Pediatr 2012; 160:54-9.e2. [PMID: 21840538 PMCID: PMC3419271 DOI: 10.1016/j.jpeds.2011.06.034] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 06/09/2011] [Accepted: 06/24/2011] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To examine pathogens and other characteristics associated with late-onset bloodstream infections (BSIs) in infants with intestinal failure (IF) as a consequence of necrotizing enterocolitis (NEC). STUDY DESIGN Infants weighing 401-1500 g at birth who survived for >72 hours and received care at Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network centers were studied. The frequency of culture-positive BSI and pathogens were compared in infants with medically managed NEC, NEC managed surgically without IF, and surgical IF. Among infants with IF, the duration of parenteral nutrition (PN) and other outcomes were evaluated. RESULTS A total of 932 infants were studied (IF, n = 78; surgical NEC without IF, n = 452; medical NEC, n = 402). The proportion with BSI after diagnosis of NEC was higher in the infants with IF than in those with surgical NEC (P = .007) or medical NEC (P < .001). Gram-positive pathogens were most frequent. Among infants with IF, an increased number of infections was associated with longer hospitalization and duration of PN (median stay: 172 for those with 0 infections, 188 days for those with 1 infection, and 260 days for those with ≥2 infections [P = .06]; median duration of PN: 90, 112, and 115 days, respectively [P = .003]) and decreased achievement of full feeds during hospitalization (87%, 67%, and 50%, respectively; P = .03). CONCLUSION Recurrent BSIs are common in very low birth weight infants with IF. Gram-positive bacteria were the most commonly identified organisms in these infants.
Collapse
Affiliation(s)
- Conrad R Cole
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Weston EJ, Pondo T, Lewis MM, Martell-Cleary P, Morin C, Jewell B, Daily P, Apostol M, Petit S, Farley M, Lynfield R, Reingold A, Hansen NI, Stoll BJ, Shane AL, Zell E, Schrag SJ. The burden of invasive early-onset neonatal sepsis in the United States, 2005-2008. Pediatr Infect Dis J 2011; 30:937-41. [PMID: 21654548 PMCID: PMC3193564 DOI: 10.1097/inf.0b013e318223bad2] [Citation(s) in RCA: 332] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sepsis in the first 3 days of life is a leading cause of morbidity and mortality among infants. Group B Streptococcus (GBS), historically the primary cause of early-onset sepsis (EOS), has declined through widespread use of intrapartum chemoprophylaxis. We estimated the national burden of invasive EOS cases and deaths in the era of GBS prevention. METHODS Population-based surveillance for invasive EOS was conducted in 4 of the Centers for Disease Control and Prevention's Active Bacterial Core surveillance sites from 2005 to 2008. We calculated incidence using state and national live birth files. Estimates of the national number of cases and deaths were calculated, standardizing by race and gestational age. RESULTS Active Bacterial Core surveillance identified 658 cases of EOS; 72 (10.9%) were fatal. Overall incidence remained stable during the 3 years (2005: 0.77 cases/1000 live births; 2008: 0.76 cases/1000 live births). GBS (∼ 38%) was the most commonly reported pathogen followed by Escherichia coli (∼ 24%). Black preterm infants had the highest incidence (5.14 cases/1000 live births) and case fatality (24.4%). Nonblack term infants had the lowest incidence (0.40 cases/1000 live births) and case fatality (1.6%). The estimated national annual burden of EOS was approximately 3320 cases (95% confidence interval [CI]: 3060-3580), including 390 deaths (95% CI: 300-490). Among preterm infants, 1570 cases (95% CI: 1400-1770; 47.3% of the overall) and 360 deaths (95% CI: 280-460; 92.3% of the overall) occurred annually. CONCLUSIONS The burden of invasive EOS remains substantial in the era of GBS prevention and disproportionately affects preterm and black infants. Identification of strategies to prevent preterm births is needed to reduce the neonatal sepsis burden.
Collapse
MESH Headings
- Anti-Bacterial Agents/administration & dosage
- Anti-Bacterial Agents/therapeutic use
- Antibiotic Prophylaxis
- Black People/ethnology
- Female
- Humans
- Incidence
- Infant
- Infant, Newborn
- Infant, Premature
- Infant, Premature, Diseases/drug therapy
- Infant, Premature, Diseases/ethnology
- Infant, Premature, Diseases/microbiology
- Infant, Premature, Diseases/mortality
- Infant, Premature, Diseases/prevention & control
- Male
- Population Surveillance
- Pregnancy
- Pregnancy Complications, Infectious/drug therapy
- Pregnancy Complications, Infectious/ethnology
- Pregnancy Complications, Infectious/microbiology
- Pregnancy Complications, Infectious/prevention & control
- Retrospective Studies
- Sepsis
- Streptococcal Infections/drug therapy
- Streptococcal Infections/ethnology
- Streptococcal Infections/microbiology
- Streptococcal Infections/mortality
- Streptococcal Infections/prevention & control
- Streptococcus agalactiae/drug effects
- Streptococcus agalactiae/pathogenicity
- Streptococcus agalactiae/physiology
- Survival Rate
- United States/epidemiology
Collapse
Affiliation(s)
- Emily J Weston
- Respiratory Diseases Branch, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Stoll BJ, Hansen NI, Sánchez PJ, Faix RG, Poindexter BB, Van Meurs KP, Bizzarro MJ, Goldberg RN, Frantz ID, Hale EC, Shankaran S, Kennedy K, Carlo WA, Watterberg KL, Bell EF, Walsh MC, Schibler K, Laptook AR, Shane AL, Schrag SJ, Das A, Higgins RD. Early onset neonatal sepsis: the burden of group B Streptococcal and E. coli disease continues. Pediatrics 2011; 127:817-26. [PMID: 21518717 PMCID: PMC3081183 DOI: 10.1542/peds.2010-2217] [Citation(s) in RCA: 707] [Impact Index Per Article: 54.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND 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.
Collapse
Affiliation(s)
- Barbara J. Stoll
- Emory University School of Medicine, Department of Pediatrics, and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Nellie I. Hansen
- Statistics and Epidemiology Unit, RTI International, Research Triangle Park, North Carolina
| | - Pablo J. Sánchez
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Roger G. Faix
- Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City, Utah
| | - Brenda B. Poindexter
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Krisa P. Van Meurs
- Division of Neonatology, Stanford University Medical Center, Palo Alto, California
| | - Matthew J. Bizzarro
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut
| | | | - Ivan D. Frantz
- Department of Pediatrics, Tufts Medical Center, Floating Hospital for Children, Tufts Medical Center, Boston, Massachusetts
| | - Ellen C. Hale
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Seetha Shankaran
- Department of Pediatrics, Wayne State University, Detroit, Michigan
| | - Kathleen Kennedy
- Department of Pediatrics, University of Texas Medical School at Houston, Texas
| | - Waldemar A. Carlo
- Division of Neonatology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kristi L. Watterberg
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | - Michele C. Walsh
- Department of Pediatrics, Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Kurt Schibler
- Department of Pediatrics, University of Cincinnati, Ohio
| | - Abbot R. Laptook
- Department of Pediatrics, Women & Infants Hospital, Brown University, Providence, Rhode Island
| | - Andi L. Shane
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | | | - Abhik Das
- Statistics and Epidemiology Unit, RTI International, Rockville, Maryland
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | | |
Collapse
|
36
|
Boghossian NS, Hansen NI, Bell EF, Stoll BJ, Murray JC, Laptook AR, Shankaran S, Walsh MC, Das A, Higgins RD. Survival and morbidity outcomes for very low birth weight infants with Down syndrome. Pediatrics 2010; 126:1132-40. [PMID: 21098157 PMCID: PMC3059605 DOI: 10.1542/peds.2010-1824] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Our objective was to compare survival and neonatal morbidity rates between very low birth weight (VLBW) infants with Down syndrome (DS) and VLBW infants with non-DS chromosomal anomalies, nonchromosomal birth defects (BDs), and no chromosomal anomaly or major BD. METHODS Data were collected prospectively for infants weighing 401 to 1500 g who were born and/or cared for at one of the study centers participating in the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network in 1994-2008. Risk of death and morbidities, including patent ductus arteriosus (PDA), necrotizing enterocolitis (NEC), late-onset sepsis (LOS), retinopathy of prematurity, and bronchopulmonary dysplasia (BPD), were compared between VLBW infants with DS and infants in the other groups. RESULTS Infants with DS were at increased risk of death (adjusted relative risk: 2.47 [95% confidence interval: 2.00-3.07]), PDA, NEC, LOS, and BPD, relative to infants with no BDs. Decreased risk of death (relative risk: 0.40 [95% confidence interval: 0.31-0.52]) and increased risks of NEC and LOS were observed when infants with DS were compared with infants with other non-DS chromosomal anomalies. Relative to infants with nonchromosomal BDs, infants with DS were at increased risk of PDA and NEC. CONCLUSION The increased risk of morbidities among VLBW infants with DS provides useful information for counseling parents and for anticipating the need for enhanced surveillance for prevention of these morbidities.
Collapse
Affiliation(s)
| | | | - Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University and Children’s Healthcare of Atlanta, Atlanta, Georgia
| | | | - Abbot R. Laptook
- Department of Pediatrics, Brown University, Providence, Rhode Island
| | | | - Michele C. Walsh
- Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio
| | - Abhik Das
- RTI International, Rockville, Maryland
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | | |
Collapse
|
37
|
Stoll BJ, Hansen NI, Bell EF, Shankaran S, Laptook AR, Walsh MC, Hale EC, Newman NS, Schibler K, Carlo WA, Kennedy KA, Poindexter BB, Finer NN, Ehrenkranz RA, Duara S, Sánchez PJ, O’Shea TM, Goldberg RN, Van Meurs KP, Faix RG, Phelps DL, Frantz ID, Watterberg KL, Saha S, Das A, Higgins RD. Neonatal outcomes of extremely preterm infants from the NICHD Neonatal Research Network. Pediatrics 2010; 126:443-56. [PMID: 20732945 PMCID: PMC2982806 DOI: 10.1542/peds.2009-2959] [Citation(s) in RCA: 1800] [Impact Index Per Article: 128.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE This report presents data from the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network on care of and morbidity and mortality rates for very low birth weight infants, according to gestational age (GA). METHODS Perinatal/neonatal data were collected for 9575 infants of extremely low GA (22-28 weeks) and very low birth weight (401-1500 g) who were born at network centers between January 1, 2003, and December 31, 2007. RESULTS Rates of survival to discharge increased with increasing GA (6% at 22 weeks and 92% at 28 weeks); 1060 infants died at <or=12 hours, with most early deaths occurring at 22 and 23 weeks (85% and 43%, respectively). Rates of prenatal steroid use (13% and 53%, respectively), cesarean section (7% and 24%, respectively), and delivery room intubation (19% and 68%, respectively) increased markedly between 22 and 23 weeks. Infants at the lowest GAs were at greatest risk for morbidities. Overall, 93% had respiratory distress syndrome, 46% patent ductus arteriosus, 16% severe intraventricular hemorrhage, 11% necrotizing enterocolitis, and 36% late-onset sepsis. The new severity-based definition of bronchopulmonary dysplasia classified more infants as having bronchopulmonary dysplasia than did the traditional definition of supplemental oxygen use at 36 weeks (68%, compared with 42%). More than one-half of infants with extremely low GAs had undetermined retinopathy status at the time of discharge. Center differences in management and outcomes were identified. CONCLUSION Although the majority of infants with GAs of >or=24 weeks survive, high rates of morbidity among survivors continue to be observed.
Collapse
Affiliation(s)
- Barbara J. Stoll
- Department of Pediatrics, School of Medicine, Emory University, Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Nellie I. Hansen
- Statistics and Epidemiology Unit, RTI International, Research Triangle Park, North Carolina
| | - Edward F. Bell
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Seetha Shankaran
- Department of Pediatrics, School of Medicine, Wayne State University, Detroit, Michigan
| | - Abbot R. Laptook
- Department of Pediatrics, Women and Infants’ Hospital, Brown University, Providence, Rhode Island
| | - Michele C. Walsh
- Department of Pediatrics, Rainbow Babies and Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Ellen C. Hale
- Department of Pediatrics, School of Medicine, Emory University, Children’s Healthcare of Atlanta, Atlanta, Georgia
| | - Nancy S. Newman
- Department of Pediatrics, Rainbow Babies and Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Kurt Schibler
- Department of Pediatrics, School of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Waldemar A. Carlo
- Division of Neonatology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kathleen A. Kennedy
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, Texas
| | - Brenda B. Poindexter
- Department of Pediatrics, School of Medicine, Indiana University, Indianapolis, Indiana
| | - Neil N. Finer
- Department of Neonatology, University of California, San Diego, Medical Center, San Diego, California
| | - Richard A. Ehrenkranz
- Department of Pediatrics, School of Medicine, Yale University, New Haven, Connecticut
| | - Shahnaz Duara
- Department of Pediatrics, Miller School of Medicine, University of Miami, Miami, Florida
| | - Pablo J. Sánchez
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - T. Michael O’Shea
- Department of Pediatrics, School of Medicine, Wake Forest University, Winston-Salem, North Carolina
| | - Ronald N. Goldberg
- Department of Pediatrics, School of Medicine, Duke University, Durham, North Carolina
| | - Krisa P. Van Meurs
- Department of Pediatrics, School of Medicine, Stanford University Palo Alto, California
| | - Roger G. Faix
- Division of Neonatology, Department of Pediatrics, School of Medicine, University of Utah, Salt Lake City, Utah
| | - Dale L. Phelps
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
| | - Ivan D. Frantz
- Division of Newborn Medicine, Department of Pediatrics, Floating Hospital for Children, Tufts Medical Center, Boston, Massachusetts
| | - Kristi L. Watterberg
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Shampa Saha
- Statistics and Epidemiology Unit, RTI International, Research Triangle Park, North Carolina
| | - Abhik Das
- Statistics and Epidemiology Unit, RTI International, Rockville, Maryland
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health Bethesda, Maryland
| | | |
Collapse
|
38
|
Bell EF, Hansen NI, Morriss FH, Stoll BJ, Ambalavanan N, Gould JB, Laptook AR, Walsh MC, Carlo WA, Shankaran S, Das A, Higgins RD. Impact of timing of birth and resident duty-hour restrictions on outcomes for small preterm infants. Pediatrics 2010; 126:222-31. [PMID: 20643715 PMCID: PMC2924191 DOI: 10.1542/peds.2010-0456] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE The goal was to examine the impact of birth at night, on the weekend, and during July or August (the first months of the academic year) and the impact of resident duty-hour restrictions on mortality and morbidity rates for very low birth weight infants. METHODS Outcomes were analyzed for 11,137 infants with birth weights of 501 to 1250 g who were enrolled in the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network registry in 2001-2005. Approximately one-half were born before the introduction of resident duty-hour restrictions in 2003. Follow-up assessments at 18 to 22 months were completed for 4508 infants. Mortality rate, short-term morbidities, and neurodevelopmental outcome were examined with respect to the timing of birth. RESULTS There was no effect of the timing of birth on mortality rate and no impact on the risks of short-term morbidities except that the risk of retinopathy of prematurity (stage > or =2) was higher after the introduction of duty-hour restrictions and the risk of retinopathy of prematurity requiring operative treatment was lower for infants born during the late night than during the day. There was no impact of the timing of birth on neurodevelopmental outcome except that the risk of hearing impairment or death was slightly lower among infants born in July or August. CONCLUSION In this network, the timing of birth had little effect on the risks of death and morbidity for very low birth weight infants, which suggests that staffing patterns were adequate to provide consistent care.
Collapse
Affiliation(s)
- Edward F. Bell
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | | | | | | | | | - Jeffrey B. Gould
- Department of Pediatrics, Stanford University, Palo Alto, California
| | - Abbot R. Laptook
- Department of Pediatrics, Brown University, Providence, Rhode Island
| | - Michele C. Walsh
- Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio
| | - Waldemar A. Carlo
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama
| | | | - Abhik Das
- RTI International, Rockville, Maryland
| | - Rosemary D. Higgins
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | | |
Collapse
|
39
|
Cotten CM, Taylor S, Stoll B, Goldberg RN, Hansen NI, Sánchez PJ, Ambalavanan N, Benjamin DK. Prolonged duration of initial empirical antibiotic treatment is associated with increased rates of necrotizing enterocolitis and death for extremely low birth weight infants. Pediatrics 2009; 123:58-66. [PMID: 19117861 PMCID: PMC2760222 DOI: 10.1542/peds.2007-3423] [Citation(s) in RCA: 624] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES Our objectives were to identify factors associated with the duration of the first antibiotic course initiated in the first 3 postnatal days and to assess associations between the duration of the initial antibiotic course and subsequent necrotizing enterocolitis or death in extremely low birth weight infants with sterile initial postnatal culture results. METHODS We conducted a retrospective cohort analysis of extremely low birth weight infants admitted to tertiary centers in 1998-2001. We defined initial empirical antibiotic treatment duration as continuous days of antibiotic therapy started in the first 3 postnatal days with sterile culture results. We used descriptive statistics to characterize center practice, bivariate analyses to identify factors associated with prolonged empirical antibiotic therapy (> or =5 days), and multivariate analyses to evaluate associations between therapy duration, prolonged empirical therapy, and subsequent necrotizing enterocolitis or death. RESULTS Of 5693 extremely low birth weight infants admitted to 19 centers, 4039 (71%) survived >5 days, received initial empirical antibiotic treatment, and had sterile initial culture results through the first 3 postnatal days. The median therapy duration was 5 days (range: 1-36 days); 2147 infants (53%) received prolonged empirical therapy (center range: 27%-85%). Infants who received prolonged therapy were less mature, had lower Apgar scores, and were more likely to be black. In multivariate analyses adjusted for these factors and center, prolonged therapy was associated with increased odds of necrotizing enterocolitis or death and of death. Each empirical treatment day was associated with increased odds of death, necrotizing enterocolitis, and the composite measure of necrotizing enterocolitis or death. CONCLUSION Prolonged initial empirical antibiotic therapy may be associated with increased risk of necrotizing enterocolitis or death and should be used with caution.
Collapse
Affiliation(s)
| | - Sarah Taylor
- RTI International, Research Triangle Park, North Carolina
| | - Barbara Stoll
- Department of Pediatrics, Emory University, Atlanta, Georgia
| | | | | | - Pablo J. Sánchez
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas
| | | | - Daniel K. Benjamin
- Department of Pediatrics, Duke University, Durham, North Carolina,Department of Duke Clinical Research Institute, Duke University, Durham, North Carolina
| | | |
Collapse
|
40
|
Cole CR, Hansen NI, Higgins RD, Ziegler TR, Stoll BJ. Very low birth weight preterm infants with surgical short bowel syndrome: incidence, morbidity and mortality, and growth outcomes at 18 to 22 months. Pediatrics 2008; 122:e573-82. [PMID: 18762491 PMCID: PMC2848527 DOI: 10.1542/peds.2007-3449] [Citation(s) in RCA: 149] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES The objective of this study was to determine the (1) incidence of short bowel syndrome in very low birth weight (<1500 g) infants, (2) associated morbidity and mortality during initial hospitalization, and (3) impact on short-term growth and nutrition in extremely low birth weight (<1000 g) infants. METHODS Infants who were born from January 1, 2002, through June 30, 2005, and enrolled in the National Institute of Child Health and Human Development Neonatal Research Network were studied. Risk factors for developing short bowel syndrome as a result of partial bowel resection (surgical short bowel syndrome) and outcomes were evaluated for all neonates until hospital discharge, death, or 120 days. Extremely low birth weight survivors were further evaluated at 18 to 22 months' corrected age for feeding methods and growth. RESULTS The incidence of surgical short bowel syndrome in this cohort of 12316 very low birth weight infants was 0.7%. Necrotizing enterocolitis was the most common diagnosis associated with surgical short bowel syndrome. More very low birth weight infants with short bowel syndrome (20%) died during initial hospitalization than those without necrotizing enterocolitis or short bowel syndrome (12%) but fewer than the infants with surgical necrotizing enterocolitis without short bowel syndrome (53%). Among 5657 extremely low birth weight infants, the incidence of surgical short bowel syndrome was 1.1%. At 18 to 22 months, extremely low birth weight infants with short bowel syndrome were more likely to still require tube feeding (33%) and to have been rehospitalized (79%). Moreover, these infants had growth delay with shorter lengths and smaller head circumferences than infants without necrotizing enterocolitis or short bowel syndrome. CONCLUSIONS Short bowel syndrome is rare in neonates but has a high mortality rate. At 18 to 22 months' corrected age, extremely low birth weight infants with short bowel syndrome were more likely to have growth failure than infants without short bowel syndrome.
Collapse
Affiliation(s)
- Conrad R. Cole
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Nellie I. Hansen
- Department of RTI International, Research Triangle Park, North Carolina
| | - Rosemary D. Higgins
- Department of Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland
| | - Thomas R. Ziegler
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Barbara J. Stoll
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | | |
Collapse
|
41
|
Adams-Chapman I, Hansen NI, Stoll BJ, Higgins R. Neurodevelopmental outcome of extremely low birth weight infants with posthemorrhagic hydrocephalus requiring shunt insertion. Pediatrics 2008; 121:e1167-77. [PMID: 18390958 PMCID: PMC2803352 DOI: 10.1542/peds.2007-0423] [Citation(s) in RCA: 215] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE We aimed to evaluate neurodevelopmental and growth outcomes among extremely low birth weight infants who had severe intraventricular hemorrhage that required shunt insertion compared with infants without shunt insertion. METHODS Infants who were born in 1993-2002 with birth weights of 401 to 1000 g were enrolled in a very low birth weight registry at medical centers that participate in the National Institute of Child Health and Human Development Neonatal Research Network, and returned for follow-up at 18 to 22 months' corrected age were studied. Eighty-two percent of survivors completed follow-up, and 6161 children were classified into 5 groups: group 1, no intraventricular hemorrhage/no shunt (n = 5163); group 2, intraventricular hemorrhage grade 3/no shunt (n = 459); group 3, intraventricular hemorrhage grade 3/shunt (n = 103); group 4, intraventricular hemorrhage grade 4/no shunt (n = 311); and group 5, intraventricular hemorrhage grade 4/shunt (n = 125). Group comparisons were evaluated with chi(2) and Wilcoxon tests, and regression models were used to compare outcomes after adjustment for covariates. RESULTS Children with severe intraventricular hemorrhage and shunts had significantly lower scores on the Bayley Scales of Infant Development IIR compared with children with no intraventricular hemorrhage and with children with intraventricular hemorrhage of the same grade and no shunt. Infants with shunts were at increased risk for cerebral palsy and head circumference at the <10th percentile at 18 months' adjusted age. Greatest differences were observed between children with shunts and those with no intraventricular hemorrhage on these outcomes. CONCLUSIONS This large cohort study suggests that extremely low birth weight children with severe intraventricular hemorrhage that requires shunt insertion are at greatest risk for adverse neurodevelopmental and growth outcomes at 18 to 22 months compared with children with and without severe intraventricular hemorrhage and with no shunt. Long-term follow-up is needed to determine whether adverse outcomes persist or improve over time.
Collapse
Affiliation(s)
- Ira Adams-Chapman
- Department of Pediatrics/Division of Neonatology, Emory University School of Medicine, 46 Jesse Hill Jr Drive SE, Atlanta, GA 30303, USA.
| | | | | | | |
Collapse
|
42
|
Walden RV, Taylor SC, Hansen NI, Poole WK, Stoll BJ, Abuelo D, Vohr BR. Major congenital anomalies place extremely low birth weight infants at higher risk for poor growth and developmental outcomes. Pediatrics 2007; 120:e1512-9. [PMID: 17984212 DOI: 10.1542/peds.2007-0354] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Studies of growth and neurodevelopmental impairment in extremely low birth weight infants often exclude infants with major congenital anomalies; thus, there are few outcome data available on these infants. OBJECTIVES The purpose of this work was to compare growth and neurodevelopmental outcomes of extremely low birth weight infants with major anomalies to extremely low birth weight infants without these findings. It was hypothesized that infants with severe anomalies would have worse growth, neurodevelopmental, and survival outcomes. METHODS A retrospective cohort analysis was performed on 5920 extremely low birth weight infants surviving beyond 12 hours of life at 19 neonatal network centers between 1998 and 2001. Infants with significant anomalies were more likely to die before 18 to 22 months' corrected age. A total of 3705 children underwent neurodevelopmental and anthropometric evaluation at 18 to 22 months' corrected age. Statistical significance for unadjusted comparisons was determined by Wilcoxon tests for continuous variables and chi2 or Fisher's exact tests for categorical variables. Regression models were used to compare the outcomes after adjusting for potential confounders. RESULTS Children with major congenital anomalies were more likely to have Bayley Mental Development Index scores of < or = 70, Psychomotor Development Index scores of < or = 70, neurodevelopmental impairment, moderate-to-severe cerebral palsy, length in the < or = 10th percentile, head circumference in the < or = 10th percentile, more rehospitalizations, and higher rates of early intervention use at 18 to 22 months' corrected age. CONCLUSIONS At 18 to 22 months' corrected age, extremely low birth weight infants born with major anomalies have nearly twice the risk for neurodevelopmental impairment, increased risk of poor growth, and > 3 times greater risk of rehospitalization when compared with extremely low birth weight infants without major anomalies. This information may be valuable for counseling parents regarding the outcomes of these infants and for the facilitation of appropriate support and intervention services.
Collapse
|
43
|
Stoll BJ, Hansen NI, Higgins RD, Fanaroff AA, Duara S, Goldberg R, Laptook A, Walsh M, Oh W, Hale E. Very low birth weight preterm infants with early onset neonatal sepsis: the predominance of gram-negative infections continues in the National Institute of Child Health and Human Development Neonatal Research Network, 2002-2003. Pediatr Infect Dis J 2005; 24:635-9. [PMID: 15999007 DOI: 10.1097/01.inf.0000168749.82105.64] [Citation(s) in RCA: 253] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Early onset neonatal sepsis (EOS, occurring in the first 72 hours of life) remains an important cause of illness and death among very low birth weight (VLBW) preterm infants. We previously reported a change in the distribution of pathogens associated with EOS from predominantly gram-positive to primarily gram-negative organisms. OBJECTIVE To compare rates of EOS and pathogens associated with infection among VLBW infants born at centers of the National Institute of Child Health and Human Development (NICHD) Neonatal Research Network during 3 time periods: 1991-1993; 1998-2000; and 2002-2003. STUDY DESIGN Prospectively collected data from the NICHD Neonatal Research Network VLBW registry were retrospectively reviewed. Rates of blood culture confirmed EOS, selected maternal and infant variables and pathogens associated with infection were compared between 2002-2003 and 2 previously published cohorts. RESULTS During the past 13 years, overall rates of EOS have remained stable (15-19 per 1000 live births of infants 401-1500 g). More than one-half of early infections in the 2002-2003 cohort were caused by gram-negative organisms (53%), with Escherichia coli the most common organism (41%). Rates of group B streptococcal infections remain low (1.8 per 1000 live births). Between 1991-1993 and 1998-2000, there was a significant increase in rates of E. coli infections; but in 2002-2003, there was no significant change (7.0 per 1000 live births). Infants with EOS continue to be at significantly increased risk for death compared with uninfected infants. CONCLUSION EOS remains an uncommon but important cause of morbidity and mortality among VLBW infants. Gram-negative organisms continue to be the predominant pathogens associated with EOS.
Collapse
Affiliation(s)
- Barbara J Stoll
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Ambalavanan N, Tyson JE, Kennedy KA, Hansen NI, Vohr BR, Wright LL, Carlo WA. Vitamin A supplementation for extremely low birth weight infants: outcome at 18 to 22 months. Pediatrics 2005; 115:e249-54. [PMID: 15713907 DOI: 10.1542/peds.2004-1812] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND A National Institute of Child Health and Human Development Neonatal Research Network randomized trial showed that vitamin A supplementation reduced bronchopulmonary dysplasia (O2 at 36 weeks' postmenstrual age) or death in extremely low birth weight (ELBW) neonates (relative risk [RR]: 0.89). As with postnatal steroids or other interventions, it is important to ensure that there are no longer-term adverse effects that outweigh neonatal benefits. PRIMARY OBJECTIVE To determine if vitamin A supplementation in ELBW infants during the first month after birth affects survival without neurodevelopmental impairment at a corrected age of 18 to 22 months. DESIGN/METHODS Infants enrolled in the National Institute of Child Health and Human Development vitamin A trial were evaluated at 18 to 22 months by carefully standardized assessments: Bayley Mental Index (MDI) and Psychomotor Index (PDI), visual and hearing screens, and physical examination for cerebral palsy (CP). The medical history was also obtained. Neurodevelopmental impairment (NDI) was predefined as > or =1 of MDI <70, PDI <70, CP, blind in both eyes, or hearing aids in both ears. RESULTS Of 807 enrolled infants, 133 died before and 16 died after discharge. Five hundred seventy-nine (88%) of the 658 remaining infants were followed up. The primary outcome of NDI or death could be determined for 687 of 807 randomized infants (85%). Baseline characteristics and predischarge and postdischarge mortality were comparable in both study groups. NDI or death by 18 to 22 months occurred in 190 of 345 (55%) infants in the vitamin A group and in 204 of 342 (60%) of the control group (RR: 0.94; 95% confidence interval: 0.80-1.07). RRs for low MDI, low PDI, and CP were also <1.0. We found no evidence that neonatal vitamin A supplementation reduces hospitalizations or pulmonary problems after discharge. CONCLUSION Vitamin A supplementation for ELBW infants reduces bronchopulmonary dysplasia without increasing mortality or neurodevelopmental impairment at 18 to 22 months. However, this study was not powered to evaluate small magnitudes of change in long-term outcomes.
Collapse
|
45
|
Stoll BJ, Hansen NI, Adams-Chapman I, Fanaroff AA, Hintz SR, Vohr B, Higgins RD. Neurodevelopmental and growth impairment among extremely low-birth-weight infants with neonatal infection. JAMA 2004; 292:2357-65. [PMID: 15547163 DOI: 10.1001/jama.292.19.2357] [Citation(s) in RCA: 1041] [Impact Index Per Article: 52.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
CONTEXT Neonatal infections are frequent complications of extremely low-birth-weight (ELBW) infants receiving intensive care. OBJECTIVE To determine if neonatal infections in ELBW infants are associated with increased risks of adverse neurodevelopmental and growth sequelae in early childhood. DESIGN, SETTING, AND PARTICIPANTS Infants weighing 401 to 1000 g at birth (born in 1993-2001) were enrolled in a prospectively collected very low-birth-weight registry at academic medical centers participating in the National Institute of Child Health and Human Development Neonatal Research Network. Neurodevelopmental and growth outcomes were assessed at a comprehensive follow-up visit at 18 to 22 months of corrected gestational age and compared by infection group. Eighty percent of survivors completed the follow-up visit and 6093 infants were studied. Registry data were used to classify infants by type of infection: uninfected (n = 2161), clinical infection alone (n = 1538), sepsis (n = 1922), sepsis and necrotizing enterocolitis (n = 279), or meningitis with or without sepsis (n = 193). MAIN OUTCOME MEASURES Cognitive and neuromotor development, neurologic status, vision and hearing, and growth (weight, length, and head circumference) were assessed at follow-up. RESULTS The majority of ELBW survivors (65%) had at least 1 infection during their hospitalization after birth. Compared with uninfected infants, those in each of the 4 infection groups were significantly more likely to have adverse neurodevelopmental outcomes at follow-up, including cerebral palsy (range of significant odds ratios [ORs], 1.4-1.7), low Bayley Scales of Infant Development II scores on the mental development index (ORs, 1.3-1.6) and psychomotor development index (ORs, 1.5-2.4), and vision impairment (ORs, 1.3-2.2). Infection in the neonatal period was also associated with impaired head growth, a known predictor of poor neurodevelopmental outcome. CONCLUSIONS This large cohort study suggests that neonatal infections among ELBW infants are associated with poor neurodevelopmental and growth outcomes in early childhood. Additional studies are needed to elucidate the pathogenesis of brain injury in infants with infection so that novel interventions to improve these outcomes can be explored.
Collapse
Affiliation(s)
- Barbara J Stoll
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Ga 30322, USA
| | | | | | | | | | | | | |
Collapse
|
46
|
Raffanti SP, Fusco JS, Sherrill BH, Hansen NI, Justice AC, D'Aquila R, Mangialardi WJ, Fusco GP. Effect of Persistent Moderate Viremia on Disease Progression During HIV Therapy. J Acquir Immune Defic Syndr 2004; 37:1147-54. [PMID: 15319674 DOI: 10.1097/01.qai.0000136738.24090.d0] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Although highly active antiretroviral therapy has been shown to lower plasma HIV-1 RNA in HIV infection, many patients do not reach the target goal of undetectable viremia. We evaluated whether risk of clinical progression varies by level of viral suppression achieved. DESIGN Patients in the Collaborations in HIV Outcomes Research/United States cohort who maintained stable HIV-1 RNA levels of either <400, 400 to 20,000, or >20,000 copies/mL during a run-in period of at least 6 months were studied. Baseline was the first day after this period. METHODS Proportional hazards models were used to quantify the relation between baseline HIV-1 RNA levels and risk of a new AIDS-defining diagnosis or death after adjusting for CD4 count, age, gender, ethnicity, study site, prior AIDS-defining diagnosis, and antiretroviral therapy history. RESULTS Patients (N = 3010) were followed for up to 4.3 years after the 6-month run-in period, with 343 deaths or AIDS-defining diagnoses reported. The risk of a new AIDS-defining diagnosis or death was not significantly different in the 400 to 20,000- and <400-copies/mL groups (6% vs. 7%, hazard ratio [HR] = 1.0, 95% confidence interval [CI]: 0.7-1.4; P = 0.9) but was significantly higher in the >20,000-copies/mL group (26%, HR = 3.3, 95% CI: 2.5-4.4; P < 0.001 vs. the <400-copies/mL group). Median CD4 count changes during the first year of follow-up showed increases of 75 and 13 cells/mm for the <400- and 400 to 20,000-copies/mL groups, respectively, whereas the >20,000-copies/mL group had a decrease of 23 cells/mm. CONCLUSIONS Patients who maintained baseline HIV-1 RNA levels of 400 to 20,000 copies/mL for at least 6 months preserved immunologic status and were no more likely to die or develop a new AIDS-defining diagnosis in the time frame studied than those with baseline levels <400 copies/mL. Patients with HIV-1 RNA levels >20,000 copies/mL at baseline had greater clinical and immunologic deterioration. These data suggest that maintenance of moderate viremia may confer clinical benefit not seen when viremia exceeds 20,000 copies/mL, and this should be taken into account when considering the risks and benefits of continuing failing therapy.
Collapse
|
47
|
Castro L, Yolton K, Haberman B, Roberto N, Hansen NI, Ambalavanan N, Vohr BR, Donovan EF. Bias in reported neurodevelopmental outcomes among extremely low birth weight survivors. Pediatrics 2004; 114:404-10. [PMID: 15286223 DOI: 10.1542/peds.114.2.404] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The purpose of this study was to investigate possible bias in the evaluation of neurodevelopment and somatic growth at 18 to 22 months' postmenstrual age among extremely low birth weight (ELBW) survivors (401-1000 g at birth). METHODS Data from a cohort of 1483 ELBW infant survivors who were born January 1993 through December 1994 and cared for at centers in the Neonatal Research Network of the National Institute of Child Health and Human Development were examined retrospectively. Children who were compliant with an 18- to 22-month follow-up visit, who visited but were not measured, or who made no visit were compared regarding 4 outcomes: 1) Bayley Scales of Infant Development, 2nd edition, Mental Developmental Index (MDI) <70 and 2) Psychomotor Developmental Index (PDI) <70, 3) presence or absence of cerebral palsy, and 4) weight <10th percentile for age. Logistic regression models were used to predict likelihood of these outcomes for children with no follow-up evaluation, and predicted probability distributions were compared across the groups. RESULTS Compared with children who were lost to follow-up, those who were compliant with follow-up were more likely to have been 1 of a multiple birth, to have received postnatal glucocorticoids, and to have had chronic lung disease. These factors were significantly associated with MDI and PDI <70 in the compliant group. Chronic lung disease was associated with increased risk of cerebral palsy (CP). MDI and PDI scores <70 were found in 37% and 29% of children who were evaluated at follow-up, respectively. Prediction models revealed that 34% and 26% of infants in the no-visit group would have had MDI and PDI scores <70. Compliant children tended to have greater incidence of MDI <70 compared with those predicted in the no-visit group but not PDI <70. CP was identified in 17% of the compliant group and predicted for 18% of the no-visit group. Predicted probabilities of having CP were marginally higher among the no-visit infants compared with those who were compliant with follow-up. There were no statistically significant somatic growth differences among the compliant, visit but not measured, and no-visit groups. CONCLUSION ELBW infant survivors who weighed 401 to 1000 g at birth and who are compliant with follow-up evaluations may have worse Bayley Scales of Infant Development, 2nd edition, MDI scores than infants with no visit. Thus, follow-up studies based on infants who are compliant with follow-up care may lead to an overestimation of adverse outcomes in ELBW survivors.
Collapse
Affiliation(s)
- Lisa Castro
- Department of Pediatrics, University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio 45229-3039, USA.
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Justice AC, Stein DS, Fusco GP, Sherrill BH, Fusco JS, Danehower SC, Becker SL, Hansen NI, Graham NMH. Disease progression in HIV-infected patients treated with stavudine vs. zidovudine. J Clin Epidemiol 2004; 57:89-97. [PMID: 15019015 DOI: 10.1016/s0895-4356(03)00245-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2003] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVES This prospective, observational study compared disease progression and death in HIV-1 patients treated with stavudine vs. zidovudine in the Collaborations in HIV Outcomes Research/U.S. (CHORUS) cohort. METHODS Patients with a first occurrence of CD4 count <500 cells/microL (n=3301) were grouped as: no nucleoside reverse transcriptase inhibitor (NRTI) use; other NRTI without stavudine or zidovudine; stavudine with no zidovudine, with or without other NRTIs; and zidovudine with no stavudine, with or without other NRTIs. The risk for death or disease progression was evaluated in unadjusted analyses and using a Cox proportional hazards model, adjusting for: study site, age, gender, race, route of HIV infection, previous AIDS-defining conditions, number of previous antiretroviral regiments, CD4 count, HIV-1 RNA, and treatment variables. Sensitivity analyses were conducted to determine the sensitivity of the results to major modeling assumptions. A landmark analysis was conducted to determine the absolute difference in time to event. RESULTS During a median follow-up of 2.4 years, there were 57 deaths and 348 AIDS-defining conditions in 405 patients. Stavudine treatment compared with zidovudine resulted in a greater percentage of patients with AIDS-defining events (14.5 vs. 10.9%; P=.013), and an increased risk of disease progression (HR=1.30; 95% CI: 1.01,1.7; P=.04). This result was not sensitive to modeling assumptions. Landmark analysis demonstrated an absolute difference in time to 95% event-free survival of 2.7 months for those with a CD4< or =200 cells/microL and 11 months for those 6 months after model entry. CONCLUSIONS In unadjusted and adjusted analyses of 3301 HIV-1 infected patients, stavudine containing combination therapy was associated with an increased risk of disease progression or death compared to therapy containing zidovudine. Most of the difference was attributable to new cases of wasting.
Collapse
|
49
|
Becker SL, Raffanti SR, Hansen NI, Fusco JS, Fusco GP, Slatko GH, Igboko EF, Graham NM. Zidovudine and stavudine sequencing in HIV treatment planning: findings from the CHORUS HIV cohort. J Acquir Immune Defic Syndr 2001; 26:72-81. [PMID: 11176271 DOI: 10.1097/00126334-200101010-00011] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Optimal sequencing of zidovudine and stavudine in antiretroviral therapy has not been elucidated. OBJECTIVE To examine the impact of the sequence of therapeutic regimens containing zidovudine and stavudine on HIV-1 RNA and CD4 lymphocyte counts over 12 months. DESIGN Observational, multicenter, longitudinal cohort study. SETTING Four large outpatient, HIV practices participating in the community-based Collaborations in HIV Outcomes Research-U.S. (CHORUS) cohort study. PARTICIPANTS 940 HIV-infected patients. METHODS Comparison of HIV-1 RNA and CD4 lymphocyte responses in patients sequenced from zidovudine to stavudine or from stavudine to zidovudine using repeated measures regression models fit to outcomes by application of generalized estimating equation (GEE) methodology. RESULTS Patients treated with zidovudine prior to stavudine (n = 834) achieved a greater mean drop from baseline HIV-1 RNA (p = .01) and higher proportion of undetectable HIV-1 RNA results (p = .05) over 12 months than those sequenced from stavudine to zidovudine (n = 106). CD4+ lymphocyte increases did not differ between the groups (p = .6). CONCLUSIONS Prior zidovudine therapy was not associated with long-term attenuation of HIV-1 RNA or CD4 response to subsequent stavudine-containing regimens. Zidovudine before stavudine may have benefit in a strategic long-term therapeutic plan.
Collapse
Affiliation(s)
- S L Becker
- Pacific Horizon Medical Group, San Francisco, California 94115, USA.
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Markowitz N, Hansen NI, Hopewell PC, Glassroth J, Kvale PA, Mangura BT, Wilcosky TC, Wallace JM, Rosen MJ, Reichman LB. Incidence of tuberculosis in the United States among HIV-infected persons. The Pulmonary Complications of HIV Infection Study Group. Ann Intern Med 1997; 126:123-32. [PMID: 9005746 DOI: 10.7326/0003-4819-126-2-199701150-00005] [Citation(s) in RCA: 159] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The resurgence of tuberculosis in the United States is largely linked to the human immunodeficiency virus (HIV) epidemic. Despite this link, the epidemiology of tuberculosis and preventive strategies in patients infected with HIV are not completely understood. OBJECTIVES To determine the incidence and predictors of tuberculosis in HIV-infected persons. DESIGN Prospective, multicenter cohort study. SETTING Community-based cohort of persons with and without HIV infection at centers in the eastern, midwestern, and western United States. PARTICIPANTS 1130 HIV-seropositive patients without AIDS who were followed for a median of 53 months (814 homosexual men, 261 injection drug users, and 55 women who had acquired HIV through heterosexual contact). MEASUREMENTS Delayed hypersensitivity response to purified protein derivative (PPD) tuberculin and mumps antigen, CD4 T-lymphocyte counts, and frequency of tuberculosis. RESULTS 31 HIV-seropositive patients developed tuberculosis (0.7 cases per 100 person-years [95% CI, 0.5 to 1.0]). The most important demographic risk factor was location (adjusted risk ratio for eastern compared with midwestern and western United States, 4.1 [CI, 2.0 to 8.4]). Tuberculosis occurred more frequently in persons with CD4 counts of less than 200 cells/mm3 (1.2 cases per 100 person-years [CI, 0.7 to 1.9]) than in those with higher counts (0.5 cases per 100 person-years [CI, 0.3 to 0.8]). The rate of tuberculosis was highest among tuberculin converters (5.4 cases per 100 person-years [CI, 1.1 to 15.7]), lower among patients who were PPD positive at first testing (4.5 cases per 100 person-years [CI, 1.6 to 9.7]), and lowest among patients who remained PPD negative (0.4 cases per 100 person-years [CI, 0.2 to 0.7]). Tuberculosis was not reported among persons who had PPD reactions of 1 to 4 mm. Compared with that of patients who tested positive for mumps, the risk for tuberculosis of those who tested negative was increased about sevenfold if they were PPD positive (P < 0.03) and fourfold if they were PPD negative (P < 0.02). CONCLUSIONS Incidence of tuberculosis was higher in the eastern United States, in patients with CD4 counts of less than 200 cells/mm3, and in PPD-positive patients. Analysis of tuberculin reaction size supports the current interpretive criteria of the Centers for Disease Control and Prevention. Nonreactivity to mumps antigen indicated increased risk for tuberculosis independent of PPD response.
Collapse
Affiliation(s)
- N Markowitz
- Division of Infectious Diseases, Henry Ford Hospital, Detroit, MI 48202, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|