Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2007
Corticosteroid-induced myopathy mimicking therapy-resistant asthma.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Yamaguchi Masafumi, Niimi Akio, Minakuchi Masayoshi, Matsumoto Hisako, Shimizu Koichi, Chin Kazuo, Mishima Michiaki
Аннотация
BACKGROUND: Therapy-resistant asthma is an important clinical problem. However, before considering asthma truly therapy resistant, it is essential to exclude diagnoses that may masquerade as therapy-resistant asthma, such as vocal cord dysfunction and recurrent aspiration, as well as factors related to loss of asthma control, including poor compliance, exposure to allergens, and sinusitis. Corticosteroid-induced myopathy may be an unrecognized but potentially important consideration in both settings.
OBJECTIVES: To describe a patient with corticosteroid-induced myopathy complicating recurrent exacerbations of asthma, which presented with persistently reduced airflow that mimicked therapy-resistant asthma.
METHODS: A 20-year-old Japanese woman with severe intractable asthma who had a history of near-fatal attacks was admitted with recurrent asthma exacerbations that required long-term systemic corticosteroids.
RESULTS: Wheezing episodes decreased but airflow limitation persisted, which was due to not only uncontrolled asthma but also corticosteroid-induced myopathy. Myopathy prevented the adequate use of inhalers, which in turn complicated the tapering of corticosteroids, leading to a vicious cycle. Careful and gradual reduction of corticosteroid dose, while continuing systemic administration of nonsteroidal antiasthma medications, resulted in a resolution of clinical and electromyographic signs of myopathy and pulmonary function abnormalities.
CONCLUSIONS: Corticosteroid-induced myopathy can masquerade as therapy-resistant asthma and can cause poor asthma control.
OBJECTIVES: To describe a patient with corticosteroid-induced myopathy complicating recurrent exacerbations of asthma, which presented with persistently reduced airflow that mimicked therapy-resistant asthma.
METHODS: A 20-year-old Japanese woman with severe intractable asthma who had a history of near-fatal attacks was admitted with recurrent asthma exacerbations that required long-term systemic corticosteroids.
RESULTS: Wheezing episodes decreased but airflow limitation persisted, which was due to not only uncontrolled asthma but also corticosteroid-induced myopathy. Myopathy prevented the adequate use of inhalers, which in turn complicated the tapering of corticosteroids, leading to a vicious cycle. Careful and gradual reduction of corticosteroid dose, while continuing systemic administration of nonsteroidal antiasthma medications, resulted in a resolution of clinical and electromyographic signs of myopathy and pulmonary function abnormalities.
CONCLUSIONS: Corticosteroid-induced myopathy can masquerade as therapy-resistant asthma and can cause poor asthma control.