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© 1991 Oxford University Press

research-article

Effectiveness of Inhaled Bronchodilator Delivery Systems for Elderly Patients

PAUL DIGGORY, RICHARD BAILEY and ALAN VALLON

5 Steeple Court, Coventry Road, London El 5QZ
Crawley Hospital, West Green Drive, Crawley, V. Sussex

A prospective study of inhaler technique using aerosol metered dose inhalers (MDIs), Rotahalers and a breath-activated device (Aerolin Autohaler) was undertaken to assess how effectively elderly patients use their inhalers. Fifty-one patients aged 67–89 years (mean 77.4 years) were enrolled. Peak flow, FEV1 and FVC were recorded, before and after inhalation of 2.5mg of salbutamol via a nebulizer, to assess the extent of reversible airways obstruction. Inhaler technique was assessed using a scoring system, based on performance in five aspects of inhaler use. Those with poor technique were randomly allocated to an alternative inhaler and reassessed. Twenty-nine of 51 patients demonstrated reversibility in their airways disease. Twenty-one of 47 had poor technique using an MDI and were given Rotahaler or Aerolin devices to use. Ten of 11 given Aerolin Autohalers improved but seven of ten using Rotahaler showed no improvement (p = 0.006). Subsequently, five of these seven were able to improve their technique with the breath-activated autohaler. The breath-activated Aerolin Autohaler is a better delivery system than Rotahalers for inhaled bronchodilators for elderly patients.

Revision received March 19, 1991.
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