Objective Improvement in survival of extremely premature infants over the past several decades has resulted in an increase in the number infants with chronic lung disease (CLD). Historical neonatal exposures associated with CLD now less frequently precede the disease. There is now increasing interest in exposures and events before delivery that predict CLD. The objective of this study was to identify current antenatal predictors of CLD. Patients and Methods We collected data about antenatal, placental and neonatal characteristics of 1241 newborns delivered before completion of the 28th week of gestation who were enrolled in a 14-center, observational study conducted during the years 2002-2004. Associations between antenatal factors, microbiologic and histologic characteristics of the placenta, and selected neonatal characteristics and CLD risk were first evaluated in univariate analyses. Subsequent multivariate analyses investigated the contribution of antenatal factors, particularly fetal growth restriction (FGR), to CLD risk. Results Among the antenatal factors, birth weight Z-score, used as a marker of FGR, provided the most information about CLD risk. Indicators of placental inflammation and infection were not associated with increased risk of CLD. Within nearly all strata of antenatal, placental and neonatal variables, growth restricted infants were at increased CLD risk compared with infants who were not growth restricted. FGR was the only maternal or antenatal characteristic that was highly predictive of CLD after adjustment for other risk factors. Conclusions FGR is independently associated with the risk of CLD. Thus factors that control fetal somatic growth may have a significant impact on vulnerability to lung injury, and in this way increase CLD risk. Future investigations should focus on the impact of FGR on growth factors that modulate lung growth.

Background: Increased survival of extremely low birth infants due to advances in antenatal and neonatal care has resulted in a population of infants at high risk of developing retinopathy of prematurity (ROP). Therapeutic interventions include the use of antenatal and postnatal steroids however, their effects on the severity of ROP is in dispute. In addition, it has not been investigated whether severe ROP is due to therapeutic interventions or due to the severity of illness. The aim of the present study was to assess the association between the incidence of severe retinopathy of prematurity (greater than stage 2 -International classification of ROP) and mechanical ventilation, oxygen therapy, gestational age, antenatal and postnatal steroids in extremely low birth weight infants.

Our prospective cohort study of extremely low gestational age newborns evaluated the association of neonatal head ultrasound abnormalities with cerebral palsy at age 2 years. Cranial ultrasounds in 1053 infants were read with respect to intraventricular hemorrhage, ventriculomegaly, and echolucency, by multiple sonologists. Standardized neurological examinations classified cerebral palsy, and functional impairment was assessed. Forty-four percent with ventriculomegaly and 52% with echolucency developed cerebral palsy. Compared with no ultrasound abnormalities, children with echolucency were 24 times more likely to have quadriparesis and 29 times more likely to have hemiparesis. Children with ventriculomegaly were 17 times more likely to have quadriparesis or hemiparesis. Forty-three percent of children with cerebral palsy had normal head ultrasound. Focal white matter damage (echolucency) and diffuse damage (late ventriculomegaly) are associated with a high probability of cerebral palsy, especially quadriparesis. Nearly half the cerebral palsy identified at 2 years is not preceded by a neonatal brain ultrasound abnormality. © 2009 Sage PublicationsAddress correspondence to: Karl C. K. Kuban, MD, SM Epi, 1 Boston Medical Center Place, Dowling 3 South, Boston, MA 02118; karl.kuban@bmc.org. Reprints: http://www.sagepub.com/journalsReprints.navThe authors have no conflicts of interest to disclose with regard to this article. Cranial ultrasound studies are used both to identify acute cerebral events in newborns and to assist with prognosis of motor and cognitive dysfunctions. For example, white matter damage, most often identified by a cranial ultrasound abnormality, is the single strongest predictor of cerebral palsy. [1][2][3][4][5][6][7][8][9][10][11] One limitation of many previous prognostic studies of neonatal ultrasound lesions is the reliance on a single sonologist to interpret scans. Because of the inherent variability in interpreting cranial sonograms, multiple readers may increase reliability. 12 Another limitation of previous prognostic studies is the lack of replicable operational definitions of cerebral palsy and its types. [1][2][3][4][5][6][7][8][9][10][11][13][14][15][16][17][18][19] In this article, we report how well cranial ultrasound scans obtained in the neonatal intensive care unit predicted cerebral palsy types and severity of motor dysfunction when children were 2 years old, corrected age. Our study of 1053 children born before the 28th postmenstrual week differs from previous studies in several ways. First, the protocol scans of these children were read by at least 2 independent sonologists for congruence about major abnormalities including intraventricular hemorrhage, moderate/severe ventriculomegaly, echogenic lesion, and echolucent lesion. Second, the sonologists' evaluation included specifically information about the location, extent, and laterality of these lesions. Third, the children were given a standardized neurological examination; the standardization of the examination res...

OBJECTIVE. The objective of this study was to compare the primary and secondary outcomes of very low birth weight infants before and after participation in the Breathsavers Group of the Vermont Oxford Network-sponsored Neonatal Intensive Care Quality Collaborative.METHODS. Hospitals that participated in the Breathsavers Group contributed clinical data on the outcomes of their very low birth weight infants to the Vermont Oxford Network using standardized clinical definitions, data forms, and inclusion criteria. Outcomes from the last year of the collaborative, 2003, were compared with those from the baseline year, 2001. Models for treatment practices and outcomes measures were adjusted for within-hospital correlation (clustering) and standard risk factors that were present at birth.RESULTS. Bronchopulmonary dysplasia dropped significantly in 2003 compared with the baseline year. Survival improved but not significantly. In addition, severe retinopathy of prematurity, severe intraventricular hemorrhage, and supplemental oxygen at discharge dropped significantly. The use of conventional ventilation at any time during the initial hospitalization, postnatal steroids, and time to first dose of surfactant all decreased significantly. The use of nasal continuous positive airway pressure at any time during hospitalization increased. The use of highfrequency ventilation, delivery room intubation, and surfactant at any time during hospitalization did not change. METHODS Participating CentersThe Breathsavers Group consisted of 16 centers and 19 hospitals (see "Acknowledgments" for listing) with Jay P. Patient DataDeidentified outcomes data that had been submitted by each participating institution to the VON were collated and analyzed. The clinical definitions of demographic, treatment, and outcome measures were those published annually by the VON. 6-8 The definition of BPD was adjusted to account for infants who were discharged from the hospital before 36 weeks' postmenstrual age (PMA) as follows: VLBW infants with BPD were defined as those who required supplemental oxygen at 36 weeks' PMA. In addition, we classified infants who went home requiring supplemental oxygen at 34 to 36 weeks' PMA as requiring supplemental oxygen at 36 weeks and having BPD. We categorized infants who went home without supplemental oxygen at Յ36 weeks' PMA or who remained hospitalized but did not require supplemental oxygen at 36 weeks' PMA as not having BPD. For all other infants, BPD status was considered unknown. Participating hospitals' Institutional Review Boards approved this use of the data. Statistical AnalysisData for VLBW infants (birth weight: 501-1500 g) who were born in 2003 were compared with data from those who were born in 2001. Dichotomous measures of treatment practice and dichotomous outcomes were analyzed using logistic regression. Generalized estimating equations accounted for within-hospital correlation (clustering). Unadjusted analyses included an indicator variable for year of birth (0 ϭ 2001, 1 ϭ 2003) and a measur...