Increased lung volume in infants and toddlers at high compared to low altitude

Autor: Federico Bonilla, Myriam R. Martínez, Zhansheng Yu, Celia Cabana, Robert S. Tepper, Conrado J. Llapur, María M. Caram
Rok vydání: 2013
Předmět:
Zdroj: Pediatric Pulmonology. 48:1224-1230
ISSN: 8755-6863
DOI: 10.1002/ppul.22764
Popis: Children and adults residing at high altitude (HA) compared to low altitude (LA) have larger lung volumes; however, it is unknown whether this response to chronic hypoxia begins early in life. Our objective was to determine whether infants and toddlers at HA have larger lung volumes compared to infants and toddlers at LA. Oxygen saturation (SaO2 ), functional residual capacity (FRC), as well as serum levels of vascular endothelial growth factor (VEGF) and erythropoietin (EPO) were measured in infants and toddlers from HA (N = 50; 3,440 m) and LA (N = 35; 440 m). There were no significant differences in somatic size for HA and LA subjects; however, HA subjects had significantly lower SaO2 (88.5% vs. 96.7%; P
Databáze: OpenAIRE