Respiratory disease screening in school-aged children using portable spirometry.

Objectives: To assess the prevalence of respiratory disease in school-aged children and to determine the value of field spirometry.

Methods: Data on 313 1st and 4th graders from four public schools in Lisbon were analyzed. A respiratory self-answered questionnaire and standard spirometry were performed.

Clinical, radiological, and physiological differences between obliterative bronchiolitis and problematic severe asthma in adolescents and young adults: the early origins of the overlap syndrome?

Purpose: Few reports have compared chronic obstructive lung diseases (OLDs) starting in childhood.

Aims: To describe functional, radiological, and biological features of obliterative bronchiolitis (OB) and further discriminate to problematic severe asthma (PSA) or to diagnose a group with overlapping features.

Results: Patients with OB showed a greater degree of obstructive lung defect and higher hyperinflation (P < 0.