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Revista chilena de enfermedades respiratorias

versión On-line ISSN 0717-7348

Resumen

LINARES P, MARCELA; MEYER P, RODOLFO; COX F, PEDRO PABLO  y  CONTRERAS E, ILSE. Utility of FEV0,5 versus FEV1 in interpreting spirometry in preschool children with asthma. Rev. chil. enferm. respir. [online]. 2007, vol.23, n.3, pp.167-172. ISSN 0717-7348.  http://dx.doi.org/10.4067/S0717-73482007000300003.

Background: FEV¡ is not easily obtained in preschool children. Objective: To evaluate the utility ofFEV0¡5 vs FEV¡ in the spirometry of asthmatic preschool children. Material and Methods: spirometry was performed to 39 asthmatic children and 77 controls. Each child performed maneuvers during 15 minutes without nose clip and if required a computer-animation program was used. An acceptable curve was defined as a register with evident peak expiratory flow (PEF) without sudden cessation of air flow at more than 20%> of the previously measured PEF. Results: 94%> and 90% of healthy and asthmatics performed at least two acceptable curves. Median age in healthy children was 4.7 years-old (2.5 to 5.9) and 3.8 years-old (2.3 to 5.2) in asthmatics. FEV¡ was obtained in 51.3% of controls and in 43% of asthmatics. In contrast FEV0.S was obtained in all the children. A significant bronchodilator response was observed in FEV0.S in 49%> of asthmatics. Conclusions: FEVo.5 was more useful than FEV¡ in interpreting spirometry in 3 to 5 years old children with asthma

Palabras clave : spirometry; preschool children; FEV0.5.

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