Human Milk Cream as a Caloric Supplement in Pre-Term Infants

Prematurity

breastfed, human milk cream, human milk fat, caloric supplement

Human milk is commonly considered to have 20 calories per ounce (kcal/oz). However, studies show that up to 65% of human milk may be less than the expected 20 kcal/oz which can greatly affect an infant's growth. The investigators now have the ability to measure caloric density of human milk and add human milk cream to any human milk (mother's own or donor human milk) that is less than 20 kcal/oz to bring it up to that amount.

Once fortification (to either mother's or donor milk) is initiated and tolerance is established (based on clinical observation), infants will be randomized into one of two groups: to receive human milk cream or not. * Human Milk Cream Group: Human milk (either mother's own or donor) will be tested (once per container of milk). If the caloric level falls below 20 kcal/oz, then an appropriate amount of human milk cream will be added to the milk to bring the content as close as possible to 20 kcal/oz. * Control Group (no human milk cream): Milk (either mother's own or donor) and human milk fortifier will be provided as usual (milk will be analyzed for study purposes). This nutritional algorithm will continue until the infant reaches 36 weeks corrected gestational age/weaned from fortifier (whichever comes first) or is otherwise removed from the study (due to transfer to non-study institution, removal from the study or death). Data will be collected from the time of study entry until the infant reaches 36 weeks corrected gestational age or weaned from the fortifier (whichever comes first) or is otherwise removed from the study. Primary measure of efficacy: The primary measure of efficacy for the study is the rate of change of weight from the initiation of enteral feeding through 36 weeks corrected gestational age or weaned from fortifier, whichever comes first. Based on an intent-to-treat (ITT) paradigm, if a study subject fails to complete the study period for any reason, this rate will be determined for the period of time on study. In order to provide a valid comparison between the study subjects, the rate of weight gain will be reported as g/kg/day. In a per-protocol analysis, these subjects will be dropped from any calculations with respect to this primary endpoint. Primary measure of safety: For the evaluation of safety, any untoward effects deemed to be related to the nutritional regimen will be identified and recorded. Key outcomes in this regard include feeding intolerance, necrotizing enterocolitis (NEC) and sepsis. Because this population has a high associated morbidity, episodes of apnea, and the use of oxygen and ventilators will be evaluated from a safety perspective. Baseline measures: (study entry, i.e. initiation of enteral feeding) At study entry, the following variables will be recorded: birth weight, gestational age, gender, Apgar score at 5 minutes, use of mechanical ventilation at study entry, use of prenatal or postnatal steroids, and the age in days at which enteral feeding was initiated. In addition the presence of any of the following clinical conditions either at the time of study entry or occurring during the course of the study will be noted: transient tachypnea of newborn (TTN), intraventricular hemorrhage (IVH) and grade, and patent ductus arteriosis (PDA). Other growth measures: Head circumference increment for the study period and length increment for the study period will be determined (and recorded as cm/week). Length and head circumference will be recorded on a weekly basis during the study period. The use of medications that influence growth and development will be recorded. These include postnatal steroids, e.g. hydrocortisone and dexamethasone, caffeine and other methylxanthine preparations. Feeding protocol: The daily amount of all enteral nutrition will be recorded in units of mL. This quantity will be subdivided into the various types of nutrition used, i.e. mother's milk, donor milk, human milk cream, fortifiers, and any other nutritional support. In the event of feeding intolerance or discontinuation of enteral feeding and the baby being returned to total parenteral nutrition (TPN), the assumed cause will be identified. The total number of days of TPN will be recorded for the study period as well as the range of dates the infant was on TPN. Infectious complications: Although not a focus of this study, occurrences of sepsis, NEC and other related infectious outcomes will be recorded. Demographics: Basic demographic and medical information on each subject will be collected and recorded. These variables include: gestational age, birth weight (including whether the infant was AGA or SGA based on standard criteria), gender, and racial group. Medications: Information on the dosing of the following drugs will be recorded: Lasix, caffeine, diuril, insulin, and dopamine. Parenteral Nutrition: Components and rate of parenteral nutrition will be recorded during study days to further evaluate nutritional intake and growth. Labs: Nutritionally-relevant labs that are obtained for clinical purposes will be recorded: Na, K, Cl, CO2, BUN, Creatinine, glucose, Ca, Phos, Mg, and triglycerides.

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