RESUMEN
OBJECTIVES: The purpose of the present study was to validate a previously calculated equation (E1) that estimates infant fat-free mass (FFM) at discharge using data from a population of preterm infants receiving an optimized feeding regimen. METHODS: Preterm infants born before 33 weeks of gestation between April 2014 and November 2015 in the tertiary care unit of Croix-Rousse Hospital in Lyon, France, were included in the study. At discharge, FFM was assessed by air displacement plethysmography (PEA POD) and was compared with FFM estimated by E1. FFM was estimated using a multiple linear regression model. RESULTS: Data on 155 preterm infants were collected. There was a strong correlation between the FFM estimated by E1 and FFM assessed by the PEA POD (râ=â0.939). E1, however, underestimated the FFM (average difference: -197 g), and this underestimation increased as FFM increased. A new, more predictive equation is proposed (râ=â0.950, average difference: -12 g). CONCLUSIONS: Although previous estimation methods were useful for estimating FFM at discharge, an equation adapted to present populations of preterm infants with "modern" neonatal care and nutritional practices is required for accuracy.
Asunto(s)
Composición Corporal , Compartimentos de Líquidos Corporales/fisiología , Dieta/normas , Conducta Alimentaria , Fenómenos Fisiológicos Nutricionales del Lactante , Recien Nacido Prematuro , Modelos Biológicos , Tejido Adiposo , Antropometría/métodos , Femenino , Francia , Edad Gestacional , Humanos , Recién Nacido , Modelos Lineales , Masculino , Conceptos Matemáticos , Alta del Paciente , Pletismografía , Reproducibilidad de los ResultadosRESUMEN
BACKGROUND: Invasive aspergillosis (IA) is associated with a high mortality rate despite the introduction of new antifungal agents. Several therapeutic strategies have been proposed to improve mortality rates in IA, including combination of drugs. METHODS: Here, we report the outcome of treatments based on a combination of antifungal agents on IA, including voriconazole and liposomal amphotericin B, in a pediatric population from 2001 to 2010. Our population included children with diverse hematological diseases or with bone marrow transplantation. RESULTS: Over a 10-year period, we diagnosed 19 cases (2,8%) of invasive pulmonary aspergillosis with an overall survival rate of 58%. CONCLUSION: Compared with the previous study conducted from 1986 to 2000, the overall survival rate (bone marrow transplantation excluded) greatly improved (12.5% to 58%), especially for patients treated for acute leukemia.