Compliance with peak expiratory flow monitoring in home management of asthma

Chest
J CotéL P Boulet

Abstract

The recent consensus reports on asthma management emphasize the importance of using peak flowmeters to accurately assess the degree of airflow obstruction. However, the optimal way to use those devices has not yet been determined. To assess compliance with peak expiratory flow (PEF) measurements in the long-term management of asthma, and identify the characteristics of patients with poor compliance. Asthma clinics from three tertiary-care hospitals. A descriptive and prospective study of 1-year duration. Twenty-six patients with moderate to severe asthma taking part in an asthma education program. Patients were asked to measure morning and evening PEF using an electronic peak flowmeter with a 3-month memory; they were unaware that PEF values were being recorded by this device. Compliance with PEF measurements was relatively good during the first month (63% of the measurements done) but even with regular reinforcement, fell to 50% at 6 months and to 33% at 12 months. Right from the beginning, 8 of 26 subjects (30%) never or almost never (<5% of the readings done) measured PEF, with seven of these subjects writing fabricated results in their diaries most of the time. At 12 months, 60% of the subjects were measuring PEF <25% of th...Continue Reading

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