A single-center retrospective observational study comparing two cohorts of very low birth weight (VLBW, birth weight \< 1500 grams) infants who received parenteral nutrition (PN) either before or after a concentrated PN regime was implemented into clinical use. Primary outcome is weight SDS at 28 days.
This study is a single-center retrospective observational study comparing two cohorts of very low birth weight (VLBW, birth weight \< 1500 grams) infants who received parenteral nutrition (PN) either before or after a concentrated PN regime was implemented into clinical use. Both PN regimes were based on standardized PN solutions with the possibility to complement with additive nutritional products according to individual assessment by the attending physician. To meet recommended macronutrient intakes, in 2012 a concentrated parenteral nutrition regime was implemented into clinical use at the neonatal intensive care unit in Umeå University hospital, Sweden. However, there is a lack of data on how changes in nutrient intakes affect growth and electrolyte status in preterm infants. Recent studies have demonstrated an increased incidence of hypokalaemia, hypophosphatemia and hypercalcaemia in infants who received enhanced parenteral energy and protein intakes. This study is a single-center retrospective observational study comparing two cohorts of very low birth weight (VLBW, birth weight \< 1500 grams) infants who received parenteral nutrition (PN) either before or after a concentrated PN regime was implemented into clinical use. Both PN regimes were based on standardized PN solutions with the possibility to complement with additive nutritional products according to individual assessment by the attending physician.
Study Type
OBSERVATIONAL
Enrollment
134
This study is a single-center retrospective observational study comparing two cohorts of very low birth weight (VLBW, birth weight \< 1500 grams) infants who received parenteral nutrition (PN) either before or after a concentrated PN regime was implemented into clinical use. Both PN regimes were based on standardized PN solutions.
Umeå University Hospital
Umeå, Sweden
Weight
Primary outcome is weight Standard Deviation Score (SDS)
Time frame: 28 days
Length and head circumference
Length (SDS score) and head circumference (SDS score) Nutritional intakes: All enteral and parenteral intakes during the first 28 postnatal days. Health outcome: Neonatal morbidities (including respiratory dristress syndrome (RDS), bronchopulmonary dysplasia (BPD), necrotizing enterocolitis (NEC), retinopathy of prematurity (ROP), interaventricular hemorrhage (IVH) mm.) Nutritional biomarkers: Daily measurements of plasma sodium, potassium, calcium and phosphate during the first postnatal week.
Time frame: First 28 days of life
Nutrient intakes (macronutrients and electrolytes)
Energy intake (kcal/kg), protein intake (g/kg), fat (g/kg), carbohydrates (g/kg), sodium (mg/kg), potassium (mg/kg), calcium (mg/kg), phosphorous (mg/kg)
Time frame: First 28 days of life
Biomarkers of nutrition (electrolytes and glucose)
plasma sodium (mmol/L), potassium (mmol/L), calcium (mmol/L), phosphate (mmol/L), glucose (mmol/L)
Time frame: First 28 days of life
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