Respirology : official journal of the Asian Pacific Society of Respirology
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Currently there are few data available regarding the use of impulse oscillometry parameters to assess airflow obstruction during standardized methacholine challenge testing. ⋯ Measuring resistance at 5 Hz using impulse oscillometry facilitates significant differentiation of baseline lung function between asthmatic and healthy children. Additionally, X may be a suitable replacement for PC20 in methacholine challenge testing.
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Case Reports
Bronchial anthracostenosis with mediastinal fibrosis associated with long-term wood-smoke exposure.
Bronchial anthracostenosis describes a disease entity consisting of bronchial destruction, deformity and stenosis related to dark pigmentation on bronchoscopy in patients with a history of coal workers' pneumoconiosis or chronic exposure to biomass smoke. The combined occurrence of bronchial anthracostenosis and mediastinal fibrosis in association with wood-smoke exposure has not been previously reported. ⋯ Clinical and radiological improvements were achieved after treatment with corticosteroid and tamoxifen. Awareness of this unusual entity will help to avoid misdiagnosis of malignancy or unnecessary thoracotomy.