<p>Prevalence and factors associated with suboptimal peak inspiratory flow rates in COPD</p>

Nasal peak inspiratory flow at altitudeFor

Nasal peak inspiratory flow at altitude. P.W. Barry, N.P. Mason, J-P. Richalet. #ERS Journals Ltd 2002. ABSTRACT: The present study investigated whether there are changes in nasal peak inspiratory flow (NPIF) during hypobaric hypoxia under controlled environmental conditions. During operation Everest III (COMEX 997), eight subjects ascended to a simulated altitude of 8,848 m in a hypobaric cham...

The clinical value of peak nasal inspiratory flow, peak oral inspiratory flow, and the nasal patency index.

OBJECTIVES/HYPOTHESIS The aim of this study was to ascertain the most reliable objective measurement for the assessment of nasal patency by investigating the relationship between peak nasal inspiratory flow, peak oral inspiratory flow, and the nasal patency index in relation to the patient's subjective perception regarding nasal obstruction. STUDY DESIGN Prospective cohort study. METHODS Th...

Maximal inspiratory flow rates in patients with COPD.

OBJECTIVES To assess the relevance of maximal inspiratory flow rates (MIFR) in the assessment of airway obstruction in COPD. SETTING University teaching hospital. PARTICIPANTS Ten consecutive COPD patients (O group; mean [+/- SD] age, 58.5+/-8.3 years) and 10 matched healthy subjects (H group; mean age, 58.7+/-7.4 years). MEASUREMENTS Lung volumes, FEV(1), specific airway conductance, sin...

Peak inspiratory flow through Turbuhaler in acute asthma.

Efficient use of dry powder inhalers, such as Turbuhaler, is dependent on the generation of adequate inspiratory flow. It is not clear whether patients with acute asthma are able to generate adequate flow. Peak inspiratory flow (PIF) was measured through an empty Turbuhaler, and without this device, in 99 adults presenting to hospital with acute exacerbations of asthma. Where possible, patients...

Peak inspiratory flow: measurement using a modified mini Wright peak flow meter.