Monitoring peak expiratory flow could predict COPD exacerbations: A prospective observational study
نویسندگان
چکیده
منابع مشابه
Peak expiratory flow (PEF) monitoring.
T he Wright peak expiratory flow meter was introduced in 1959 and provided a portable piece of equipment for assessing some aspects of lung function in the ambulatory care setting. The original device has been supplanted by the mini Wright peak flow meter (and a range of other devices) which have become relatively cheap but are reasonably reliable for home monitoring. So, with an available devi...
متن کاملPeak expiratory flow monitoring in asthmatic children.
OBJECTIVE To correlate forced expiratory volume in 1 second (VEF(1)) and peak expiratory flow (PEF) with clinical parameters in children with moderate and severe asthma. METHODS This was a non-concurrent cohort study, carried out at a pediatric pneumology clinic, in Belo Horizonte, MG, Brazil, between March and October 2002. The study enrolled children aged 5 to 16 years, with persistent asth...
متن کاملPeak expiratory flow sequence in acute exacerbations of asthma.
The effect of deep inspiration on airway calibre in asthma may be a marker of the pathophysiology of airflow obstruction. Dilator responses occur with predominant airway smooth muscle spasm, and constrictor responses with more severe inflammatory bronchoconstriction. We investigated whether the effect of deep inspiration, as reflected by the change in peak expiratory flow from the first to last...
متن کاملPeak flowmeter resistance decreases peak expiratory flow in subjects with COPD.
Previous studies have shown that the added resistance of a mini-Wright peak expiratory flow (PEF) meter reduced PEF by approximately 8% in normal subjects because of gas compression reducing thoracic gas volume at PEF and thus driving elastic recoil pressure. We undertook a body plethysmographic study in 15 patients with chronic obstructive pulmonary disease (COPD), age 65.9 +/- 6.3 yr (mean +/...
متن کاملPeak expiratory flow at altitude.
The mini Wright peak flow meter is a useful, portable instrument for field studies but being sensitive to air density will under-read at altitude. True peak expiratory flow will increase at altitude, however, because of the decreased air density, given that dynamic resistance is unchanged. The effect of simulated altitude on peak expiratory flow (PEF) was determined in six subjects with both th...
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ژورنال
عنوان ژورنال: Respiratory Medicine
سال: 2019
ISSN: 0954-6111
DOI: 10.1016/j.rmed.2019.01.010