Aspiration pneumonia classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Priyamvada Singh, M.D. [2]
Overview
Aspiration pneumonia is a part of aspiration syndrome which is consist of four classes depending on nature of aspirated substance.
Aspiration syndrome:
It consist of all disorders of respiratory tree due to inhalation of any substance that damages lungs.
Following are the four classes of aspiration syndrome[1][2]:
| Classes | Substance involved | Risk factor | Mechanism of damdage |
|---|---|---|---|
| Forgiven body aspiration pneumonia | Foreign body | childhood | traumatic |
| Aspiration Pneumonitis | Gastric contents, | decreased level of consiousness | corrosive effect of acid on respiratory tract |
| Aspiration pneumonia | Oral cavity bacterial flora (CAP) | dysphagia, elderly age | similar to community acquired pneumonia |
| Diffuse aspiration bronchiolitis | Oral cavity bacterial flora | dysphagia, elderly age | similar to atypical bacterial infection of lungs |
| Lipid pneumonia | oil | childhood | macrophages engulf lipid substances lining pulmonary tree |
References
- ↑ Marik PE (2011). "Pulmonary aspiration syndromes". Curr Opin Pulm Med. 17 (3): 148–54. doi:10.1097/MCP.0b013e32834397d6. PMID 21311332.
- ↑ Hu X, Lee JS, Pianosi PT, Ryu JH (2015). "Aspiration-related pulmonary syndromes". Chest. 147 (3): 815–823. doi:10.1378/chest.14-1049. PMID 25732447.