BACKGROUND Impulse oscillometry (IOS) has previously been proposed to provide greater sensitivity than spirometry when employed with indirect bronchoprovocation testing for the diagnosis of airway dysfunction in athletes. However, this recommendation is based on a highly selected population of symptomatic patients. OBJECTIVE To compare IOS, spirometry and respiratory symptoms following indire...

This study was aimed to evaluate the impulse oscillometry (R20/X5 in patients with COPD in Tehran, Iran. In a retrospective cross sectional study, we selected 101 patients who had PFT and impulse oscillometry records. We considered three groups for patients on the basis of spirometric findings: mild (FEV1 > 75%), moderate (FEV1 = 50%-75%), and severe (FEV1 < 50%) with FEV1/FVC <70% in all the g...

BACKGROUND Remodeling of the peripheral airways persists during the asymptomatic phase of heaves. Assessing the histology of large bronchi could facilitate the diagnosis of heaves during remission of the disease. HYPOTHESIS Airway inflammation and remodeling in endobronchial biopsy (EBB) specimens differentiate horses with heaves from controls, independently of their clinical status (exacerba...

OBJECTIVE To identify changes in the forced and quiet breathing parameters of lung function in healthy children and adolescents exposed to passive smoking (PS). METHOD Comparative cross-sectional study. Healthy schoolchildren aged 6 to 14 years. We collected anthropometric data, lung function parameters using spirometry (forced breathing), and quiet breathing parameters using impulse oscillom...