Abstract
Although often regarded as a disease of childhood, asthma is common in elderly people. Although recent figures show a decline over the past few years in the number of asthma deaths in children and younger adults, the same is not true of older adults, in whom most asthma deaths occur.
Differences between asthma in young and old patients are seen not only in response to treatment. The nonspecific presentation of asthma in elderly adults means that the diagnosis of asthma is difficult to make. In addition, research suggests that physicians are reluctant to use spirometry and measurement of reversibility when investigating respiratory symptoms in old people. This leads to a tendency to label breathless or wheezy elderly patients as having chronic obstructive pulmonary disease (COPD) rather than asthma. In turn, patients with a diagnosis of COPD are less likely to be treated with bronchodilators and corticosteroids.
Treatment guidelines for the management of asthma in children and younger adults may need to be adapted when applied to older patients. Reduced perception of bronchoconstriction may lead to underuse of bronchodilators prescribed ‘as required’. The bronchodilator response to β2-agonists is attenuated as part of the normal aging process, and other groups of bronchodilator medications should be considered. Inhaler technique can be a particular problem in elderly patients with asthma, requiring careful choice of inhaler device. However, the frequent presence of multiple pathology and multiple medication in this age group enhances the risk of adverse effects from oral preparations, and so the inhaled route should be preferred wherever possible.
Underestimation of the severity of an acute exacerbation of asthma by both patient and doctor has been suggested as a contributory factor to poor outcome in older people. Since the cardiovascular responses to hypoxia and bronchoconstriction tend to diminish with increasing age, objective measures of asthma severity (peak flow monitoring and blood gas estimation) are essential in this age group.
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Renwick, D.S., Connolly, M.J. Improving Outcomes in Elderly Patients with Asthma. Drugs & Aging 14, 1–9 (1999). https://doi.org/10.2165/00002512-199914010-00001
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DOI: https://doi.org/10.2165/00002512-199914010-00001