Plasma and erythrocyte selenium and glutathione peroxidase activity in preterm infants at risk for bronchopulmonary dysplasia.

The purpose of this study was to examine the relationships between selenium status, as measured by plasma and erythrocyte selenium and glutathione peroxidase (GPx) activity, and other postnatal factors, including selenium intake, gestational age, and oxygen dependence in preterm infants at risk for bronchopulmonary dysplasia. Eighteen preterm infants of 30 wk gestational age or less were included. At postnatal wk 1 and 4, selenium concentrations and GPx activity were measured and oxygen dependence and daily selenium intakes were determined from the medical chart.

Vitamin A and bronchopulmonary dysplasia: research, issues, and clinical practice.

Vitamin A is a crucial antioxidant for preterm infants because it protects the lungs from oxidative damage induced by the administration of supplemental oxygen. Although all preterm infants are born with smaller vitamin A stores than full-term infants, the store of vitamin A in preterm infants at risk for bronchopulmonary dysplasia (BPD) is often especially deficient. Despite the increases in plasma vitamin A concentrations that have been achieved with vitamin A supplementation, only modest improvements in clinical outcomes and incidence of BPD have been noted in this population.

Health care policy for medically fragile children.

Medically fragile children are part of a growing population of children with special health care needs (CSHCN) who are dependent on technology for survival. Despite the extensive care needs characteristic of this population, many medically fragile children are cared for in their homes. Caregivers for these children are faced with numerous tasks, including the daily care of their child as well as the coordination of vital services.

Caring for medically fragile children in the home: an alternative theoretical approach.

Medically fragile children require extensive, ongoing care that is typically provided in the home environment. The phenomenon of "caregiver burden" has been the topic of many studies in which the hardships and everyday life stressors of families with medically fragile children are examined. These studies are limited in that they focus merely on the difficulties of care, which represent only one dimension of the larger phenomenon of caregiving.

Infant feeding responsiveness: a conceptual analysis.

Background: The phenomenon of infant responsiveness to the caregiver during feeding interactions has been of interest to researchers for many years, because of its associated implications for child growth and development. Although many studies have examined feeding responsiveness in caregiver-infant dyads, it is infrequently and inconsistently defined in the literature.

Specific Aims: The purpose of this paper is to clarify the concept of infant feeding responsiveness through the provision of a working definition of the concept for further study and usage.