Do currently recommended Bayley-III cutoffs overestimate motor impairment in infants born <27 weeks gestation?

OBJECTIVE: To determine whether a Bayley-III motor composite score of 85 may overestimate moderate-severe motor impairment by analyzing Bayley-III motor components and developing cut-point scores for each. STUDY DESIGN: Retrospective study of 1183 children born <27 weeks gestation at NICHD Neonatal Research Network centers and evaluated at 18-22 months corrected age. Gross Motor Function Classification System determined gross motor impairment. Statistical analyses included linear and logistic regression and sensitivity/specificity. RESULTS: Bayley-III motor composite scores were strong indicators of gross/fine motor impairment. A motor composite cut-point of 73 markedly improved the specificity for identifying gross and/or fine motor impairment (94% compared with a specificity of 76% for the proposed new cut-point of 85). A Fine Motor Scaled Score <3 differentiated mild from moderate-severe fine motor impairment. CONCLUSIONS: This study indicates that a Bayley-III motor composite score of 85 may overestimate impairment. Further studies are needed employing term controls and longer follow-up.

Hospital and neurodevelopmental outcomes of extremely low-birth-weight infants with necrotizing enterocolitis and spontaneous intestinal perforation.

OBJECTIVE: We sought to determine the incidence of necrotizing enterocolitis (NEC) and spontaneous intestinal perforation (SIP) in surviving extremely low-birth-weight (ELBW, <1000 g birth weight) infants and to establish the impact of NEC on outcomes by hospital discharge and at 18 to 22 months adjusted age in a large, contemporary, population-based practice. STUDY DESIGN: Hospital outcome data for all ELBW infants born in the greater Cincinnati region from 1998 to 2009 were extracted from the National Institute of Child Health Neonatal Research Network Database. Neurodevelopmental outcome at 18 to 22 months was assessed using Bayley Scales of Infant Development-II scores for Mental Developmental Index and Psychomotor Developmental Index. Multivariable logistic regression was used and adjusted odds ratios reported to control for confounders. RESULT: From 1998 to 2009, ELBW infants accounted for 0.5% of the 352 176 live-born infants in greater Cincinnati. The incidence of NEC was 12%, with a 50% case-fatality rate. Death before discharge, morbid complications of prematurity and neurodevelopmental impairment were all increased among infants diagnosed with NEC. Infants with surgical NEC and SIP had a higher incidence of death, but long-term neurodevelopmental outcomes were not different comparing surviving ELBW infants with medical NEC, surgical NEC and SIP. CONCLUSION: Although ELBW infants comprise a very small proportion of live-born infants, those who develop NEC and SIP are at an increased risk for death, morbid complications of prematurity and neurodevelopmental impairment. No significant differences in neurodevelopmental outcomes were observed between the medical and surgical NEC and SIP groups.

Current state of high-risk infant follow-up care in the United States: results of a national survey of academic follow-up programs.

OBJECTIVE: High-risk infant follow-up programs have the potential to act as multipurpose clinics by providing continuity of clinical care, education of health care trainees and facilitating outcome data research. Currently there are no nationally representative data on high-risk infant follow-up practices in the United States. The objective of this study is to collect information about the composition of high-risk infant follow-up programs associated with academic centers in the United States, with respect to their structure, function, funding resources and developmental assessment practices, and to identify the barriers to establishment of such programs. STUDY DESIGN: Staff neonatologists, follow-up program directors and division directors of 170 Neonatal Intensive Care Units (NICU) associated with pediatric residency programs were invited to participate in an anonymous online survey from October 2009 to January 2010. RESULT: The overall response rate was 84%. Ninety three percent of the respondents have a follow-up program associated with their NICU. Birth weight, gestational age and critical illness in the NICU were the major criteria for follow-up care. Management of nutrition and neurodevelopmental assessments was the most common service provided. Over 70% have health care trainees in the clinic. About 75% of the respondents have the neurodevelopmental outcome data available. Most of the respondents reported multiple funding sources. Lack of personnel and funding were the most common causes for not having a follow-up program. CONCLUSION: High-risk infant follow-up programs associated with academic centers in the United States are functioning as multidisciplinary programs providing clinical care, trainee education and facilitating outcomes research.

Neurodevelopmental and functional outcomes of extremely low birth weight infants in the National Institute of Child Health and Human Development Neonatal Research Network, 1993-1994.

OBJECTIVES: The purposes of this study were to report the neurodevelopmental, neurosensory, and functional outcomes of 1151 extremely low birth weight (401-1000 g) survivors cared for in the 12 participating centers of the National Institute of Child Health and Human Development Neonatal Research Network, and to identify medical, social, and environmental factors associated with these outcomes. STUDY DESIGN: A multicenter cohort study in which surviving extremely low birth weight infants born in 1993 and 1994 underwent neurodevelopmental, neurosensory, and functional assessment at 18 to 22 months' corrected age. Data regarding pregnancy and neonatal outcome were collected prospectively. Socioeconomic status and a detailed interim medical history were obtained at the time of the assessment. Logistic regression models were used to identify maternal and neonatal risk factors for poor neurodevelopmental outcome. RESULTS: Of the 1480 infants alive at 18 months of age, 1151 (78%) were evaluated. Study characteristics included a mean birth weight of 796 +/- 135 g, mean gestation (best obstetric dates) 26 +/- 2 weeks, and 47% male. Birth weight distributions of infants included 15 infants at 401 to 500 g; 94 at 501 to 600 g; 208 at 601 to 700 g; 237 at 701 to 800 g; 290 at 801 to 900 g; and 307 at 901 to 1000 g. Twenty-five percent of the children had an abnormal neurologic examination, 37% had a Bayley II Mental Developmental Index <70, 29% had a Psychomotor Developmental Index <70, 9% had vision impairment, and 11% had hearing impairment. Neurologic, developmental, neurosensory, and functional morbidities increased with decreasing birth weight. Factors significantly associated with increased neurodevelopmental morbidity included chronic lung disease, grades 3 to 4 intraventricular hemorrhage/periventricular leukomalacia, steroids for chronic lung disease, necrotizing enterocolitis, and male gender. Factors significantly associated with decreased morbidity included increased birth weight, female gender, higher maternal education, and white race. CONCLUSION: ELBW infants are at significant risk of neurologic abnormalities, developmental delays, and functional delays at 18 to 22 months' corrected age.

Medical play and preparation: questions and issues.

Medical play and preparation have become increasingly visible components of psychosocial programming for children in health care settings. Each strategy varies to the extent to which adults structure and direct, which may influence children's responses and posthospital adjustment. Medical play and preparation represent different philosophies and theories on children's learning, adaptation, and development. The ever-changing medical environment may currently favor adult-directed experiences over those that are spontaneous or child initiated, with potentially differing impacts on children. Issues are raised regarding the potential impact as well as that of programs with various combinations of adult- versus child-structured experiences.