Asthma and ABPA : Peak flow chart

Date: 26 November 2013

  • Pt SY with Asthma and ABPA -- Peak flows and inhaled steroids

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This recording of peak flow was taken prior to and during the first 4 weeks of inhaled steroids (Becotide 100 and Duovent both 2 puffs 4x daily). The patient had had asthma since age 4, and been treated with bronchodilators and oral courses of steroids when severely affected. The chart, which the patient completed at home, shows that early in week one her peak flow varied from 200-250 L/min. As the medication started to work, the peak flows gradually increased to reach 360-420 L/min in the 4th week. The lower value each morning is characteristic of asthma.

The response to steroids is important confirmation of the diagnosis of asthma (reversible airways obstruction). Many years later she developed ABPA, while on inhaled steroids, with severe upper lobe central bronchiectasis, an IgE of 6,800 Kiu/L, positive aspergillus precipitins, an Aspergillus RAST of 58.7KUa/L (normal <0.4) and eosinophilia.

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