Non-viral wheezing in preschool children: the effect of inhaled fluticasone on symptoms and lung function.

Aims of this study were: to evaluate changes in lung function in wheezing children with detected MP and CP infection according to treatment; to measure the response to inhaled corticosteroids in children with significant wheezing who were selected as having a high risk of progressing into childhood asthma. 54 children were randomly assigned 2:1 into 2 groups-the main group (36 patients), in which inhaled corticosteroids were administered, and the control group (18 patients), without inhaled corticosteroids. Serum IgE levels were determined using the ELISA (reagents: IBL-Hamburg). Serologic studies were performed by the ELISA for IgM and IgG antibodies to MP and for IgG and IgA antibodies to CP (reagents: ImmunoLISA, Orgenics, Israel) on the Hiperion MRIII (USA). Pulmonary function testing was done with SpiroLab II (DEGO GmbH, Medizin-Elektronik, Germany). The patients of both groups were administered macrolides: azitromycin during five days. Patients of the first group received inhaled fluticasone propionate 125 mg twice daily. The parents were asked to record symptoms. Each symptom (wheezing, cough, and shortness of breath) were scored on a scale of 0 to 3--daily symptom score (DSS). Scores were calculated every 4 weeks for a total treatment period 16 weeks. The days within each period on which the DSS equalled zero were pointed as symptom free days (SFD). It had been shown an significant improvement in DSS, an increase in SFD and significant improvement of the lung functions following the treatment with inhaled fluticasone and macrolide in children with wheezing and documented MP or CP infection, compared to control group treated only with antibiotics. In conclusion, the use of ICS should be seriously considered in children with wheezing and the risk of persisting symptoms.