Karen A Baron

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BACKGROUND Protein intake is frequently delayed in ill neonates because of concerns about their ability to metabolize substrates. OBJECTIVE We aimed to determine the factors affecting protein balance in ventilated, parenterally fed newborns during the first week of life. DESIGN Leucine kinetic studies were performed in 19 neonates by using the(More)
Arginine (A) may play a significant role in fetal growth, by stimulating insulin secretion and as a precursor for both polyamine synthesis and nitric oxide production. To determine whether increased maternal plasma A concentrations can enhance delivery of A to the fetus, uterine, umbilical, and net uteroplacental (UP) A uptake rates were measured in 12(More)
The energy cost of physical activity (EEA) has been estimated to account for 5-17% of total energy expenditure (TEE) in neonates. To directly measure EEA, a force plate was developed and validated to measure work outputs ranging from 0.3 to 40 kcal . kg-1 . day-1. By use of this force plate plus indirect calorimetry, TEE and EEA were measured and correlated(More)
Percutaneous transluminal coronary angioplasty (PTCA) occlusion in five individual coronary artery distributions produced significant ST elevation ("current of injury") in 48/50 PTCAs in 46 patients. Four patients had PTCA of two separate coronary arteries. Two patients had no significant ischemic ST changes in the 16 simultaneous lead ECG and no chest pain(More)
Use of large-volume electronic infusion devices (EID) in an adult general hospital was compared with an established protocol to determine compliance. Data were collected during seven widely spaced inspections of the facility. Forty-six percent of 962 EID were observed to be employed inappropriately. Compliance was nearly identical for both pumps and(More)
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