[Incidence of exercise-induced bronchospasm (E.I.B.) and its correlation with clinical history in children with allergic asthma].
In this study, 65 allergic asthmatic children were evaluated for the presence of exercise induced bronchospasm (E.I.B.). Pulmonary function (volume at 1 second of forced expiration--FEV1; maximal mid-expiratory flow--FEF 25-75; peak expiratory flow--PEF) was assessed before and serially for 20' following treadmill exercise. Only 18 children (27.6%) presented a fall in FEV1 > or = 20%. There was a relationship between severity of asthma and incidence of E.I.B., as children with episodic, frequent and chronic asthma presented respectively 13/55 (23.4%), 2/6 (33.3%) and 3/4 (75%) of positive responses. The presence of E.I.B. cannot be predicted by clinical history, as 15/36 (41.7%) of subjects with positive clinical history had E.I.B., against 3/29 (10.3%) of subjects with negative clinical history (p = n.s.). E.I.B. in asthmatic children is less frequent as reported, correlates with severity of asthma and cannot be accurately predicted from the history.
Novembre
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E
Dipartimento di Pediatria, Università di Firenze, Italia.
Dini
L
L
Veneruso
G
G
Lombardi
E
E
Bernardini
R
R
Vierucci
A
A
D000293:Adolescent; D001249:Asthma / Q000150:complications*; D001250:Asthma, Exercise-Induced / Q000175:diagnosis* / Q000209:etiology; D002648:Child; D005080:Exercise Test; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D012129:Respiratory Function Tests
Incidenza del broncospasmo indotto da esercizio fisico (E.I.B.) e correlazione con la storia clinica in bambini affetti da asma allergico.