Published in:
Open Access
01-12-2022 | Expectoration | Case report
Refractory flare-up of severe bronchial asthma controlled with mepolizumab due to Pneumocystis pneumonia: a case report
Authors:
Kazuya Takeda, Toshiyuki Sumi, Yuta Nagahisa, Keigo Matsuura, Motoki Sekikawa, Hiroki Watanabe, Yuichi Yamada, Hirofumi Chiba
Published in:
Allergy, Asthma & Clinical Immunology
|
Issue 1/2022
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Abstract
Background
Biologics dramatically improve symptoms of severe asthma; however, various exacerbating factors may induce flare-up. Pneumocystis spp. have not been reported as a cause of asthma exacerbation during biologic use, although patients with severe asthma have high levels of antibodies against Pneumocystis spp.
Case presentation
An 87-year-old female with severe asthma that was well-controlled with mepolizumab, who developed a steroid-resistant refractory flare-up. Chest computed tomography showed bilateral ground glass opacities, and results of polymerase chain reaction tests on induced sputum were positive for Pneumocystis DNA. Therefore, a diagnosis of Pneumocystis pneumonia was made. The clinical symptoms improved after treatment with sulfamethoxazole–trimethoprim.
Conclusion
Clinicians should be aware of Pneumocystis pneumonia as a cause of refractory exacerbation of bronchial asthma during use of interleukin-5 inhibitors.