Aspiration pneumonia bacterial infection: Difference between revisions
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* Time since aspiration to diagnosis | * Time since aspiration to diagnosis | ||
* Immune status of the host | * Immune status of the host | ||
===Symptoms=== | ===Symptoms in aerobic microbes=== | ||
* Indolent course | * Indolent course | ||
* Productive [[cough]] | * Productive [[cough]] | ||
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* [[Anorexia]], weight loss | * [[Anorexia]], weight loss | ||
* [[Anemia]] | * [[Anemia]] | ||
==Natural History, Complications and Prognosis== | ==Natural History, Complications and Prognosis== | ||
* Lung abscess | * Lung abscess | ||
Revision as of 18:20, 8 September 2012
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Aspiration pneumonia bacterial infection On the Web |
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American Roentgen Ray Society Images of Aspiration pneumonia bacterial infection |
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Risk calculators and risk factors for Aspiration pneumonia bacterial infection |
Editor(s)-in-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753; Associate Editor(s)-In-Chief: Priyamvada Singh, M.D. [2]
Overview
Aspiration pneumonia caused by bacterial infection is the commonest subtype of aspiration pneumonia. The other subtypes being chemical pneumonia, and airway obstructions.
Causes
- Normal flora of upper airways, gingival cavity or stomach.
- Caused by less virulent bacteria, such as anaerobes and aerobic or microaerophilic streptococci
History and symptoms
The manifestation depends on:
- The bacteria involved
- Time since aspiration to diagnosis
- Immune status of the host
Symptoms in aerobic microbes
- Indolent course
- Productive cough
- Fever
- Absence of chills and rigors
- Dyspnea
- Anorexia, weight loss
- Anemia
Natural History, Complications and Prognosis
- Lung abscess
- Necrotizing pneumonia
- Empyema
- Bronchopleural fistula
Risk factors
- Poor dental hygiene is a risk factor
- Patients with good dental hygiene and edentulous are less predisposed