Bronchial provocation tests in clinical practice
Bronchial hyperresponsiveness, which consists of an exaggerated response of the airways to bronchoconstrictor stimuli, is one of the main characteristics of asthma, presented in nearly all asthmatic patients. Bronchial hyperresponsiveness may also be present in other diseases, such as allergic rhini...
| Authors: | , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2011 |
| Country: | Brasil |
| Institution: | Associação Paulista de Medicina |
| Repository: | São Paulo medical journal (Online) |
| Language: | English |
| OAI Identifier: | oai:ojs.diagnosticoetratamento.emnuvens.com.br:article/1614 |
| Online Access: | https://periodicosapm.emnuvens.com.br/spmj/article/view/1614 |
| Access Level: | Open access |
| Keyword: | Testes de provocação brônquica Asma Broncoconstrição Diagnóstico Hipersensibilidade respiratória Bronchial provocation test Asthma Bronchoconstriction Diagnosis Respiratory hypersensitivity |
| Summary: | Bronchial hyperresponsiveness, which consists of an exaggerated response of the airways to bronchoconstrictor stimuli, is one of the main characteristics of asthma, presented in nearly all asthmatic patients. Bronchial hyperresponsiveness may also be present in other diseases, such as allergic rhinitis, chronic obstructive pulmonary disease, cystic fibrosis, heart failure and respiratory infection, and with some medications, such as β-blockers. Bronchial provocation tests (also known as bronchial challenges) are used to evaluate bronchial responsiveness. These tests have become increasingly used over the last 20 years, with the development and validation of accurate, safe and reproducible tests, and with the publication of welldetailed protocols. Several stimuli can be used in a bronchial challenge, and they are classified as direct and indirect stimuli. There are many indications for a bronchial challenge. In this review, we discuss the main differences between direct and indirect stimuli, and the use of bronchial challenges in clinical practice, especially for confirming diagnoses of asthma, exercise-induced bronchoconstriction and coughvariant asthma, and for use among elite-level athletes. |
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