Bronchiolitis classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ahmed Elsaiey, MBBCH [2]
Overview
Bronchiolitis should be classified in order to understand how it may occur and the clinical manifestations that may be observed. Bronchiolitis is classified based on the patient's age and the different histological forms of the disease. According to age, bronchiolitis is classified as either adult or infant. Based on the different histological features, it can be classified as acute infectious bronchiolitis, bronchiolitis obliterans, proliferative bronchiolitis, diffuse panbronchiolitis, or respiratory bronchiolitis. Based on the Bronchiolitis Severity Score (BSS), bronchiolitis is classified into 4 classes.
Classification
Bronchiolitis may be classified in the following ways:
Classification based on age
Based on age, brochiolitis may be classified as:
- Adult bronchiolitis
- Infantile bronchiolitis
Classification based on histological forms
Based on histological form, bronchiolitis may be classified as: [1][2]
| Bronchiolitis | |||||||||||||||||||||||||||||||||||||||
| Histological | |||||||||||||||||||||||||||||||||||||||
| Constrictive bronchiolitis | Proliferative bronchiolitis | Panbronchiolitis | Follicular bronchiolitis | ||||||||||||||||||||||||||||||||||||
Classification based on Bronchiolitis Severity Score (BSS)
Based on Bronchiolitis Severity Score (BSS), bronchiolitis may be classified into 4 classes as follows:[3]
| Score | Respiratory Rate/minute | Wheezing | Retraction | General Condition |
|---|---|---|---|---|
| 0 | <30 | None | None | Normal |
| 1 | 30–45 | Terminal expiration or only with stethoscope | Intercostal | |
| 2 | 46–60 | Entire expiration or audible on expiration without stethoscope | Tracheosternal | |
| 3 | >60 | Inspiration and expiration without stethoscope | Irritability, lethargy, poor feeding |
References
- ↑ Ryu JH, Myers JL, Swensen SJ (2003). "Bronchiolar disorders". Am J Respir Crit Care Med. 168 (11): 1277–92. doi:10.1164/rccm.200301-053SO. PMID 14644923.
- ↑ King TE (1993). "Overview of bronchiolitis". Clin Chest Med. 14 (4): 607–10. PMID 8313665.
- ↑ Wang EE, Milner RA, Navas L, Maj H (1992). "Observer agreement for respiratory signs and oximetry in infants hospitalized with lower respiratory infections". Am Rev Respir Dis. 145 (1): 106–9. doi:10.1164/ajrccm/145.1.106. PMID 1731571.