Sandbox:Aditya: Difference between revisions
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==Classification== | ==Classification== | ||
===Based on duration=== | ===Based on duration=== | ||
*'''Acute''' | *'''Acute''' : If symptoms are present for less than 6 weeks before presenting to medical care.<ref name="pmid18158141">{{cite journal |vauthors=Puligandla PS, Laberge JM |title=Respiratory infections: pneumonia, lung abscess, and empyema |journal=Semin. Pediatr. Surg. |volume=17 |issue=1 |pages=42–52 |year=2008 |pmid=18158141 |doi=10.1053/j.sempedsurg.2007.10.007 |url=}}</ref> | ||
*'''Chronic''' If symptoms persist for more than 6 weeks | *'''Chronic''' : If symptoms persist for more than 6 weeks | ||
===Based on Etiology=== | ===Based on Etiology=== | ||
'''Primary''' When Abscess develops among patients who were healthy previously or with high risk factors such as those prone for aspiration | '''Primary''' When Abscess develops among patients who were healthy previously or with high risk factors such as those prone for aspiration | ||
Revision as of 18:23, 23 January 2017
Classification
Based on duration
- Acute : If symptoms are present for less than 6 weeks before presenting to medical care.[1]
- Chronic : If symptoms persist for more than 6 weeks
Based on Etiology
Primary When Abscess develops among patients who were healthy previously or with high risk factors such as those prone for aspiration
- Aspiration of oropharyngeal secretions
- Immunodeficiency conditions like HIV
- Necrotizing pneumonitis
Secondary When abscess develops among patients with an underlying lung abnormality
- Bronchial obstruction
- Hematogenic dissemination
- Infection spread from mediastinum
- Coexisting Lung Diseases
Based on mode of spread
Bronchiogenic
- Aspiration of Oropharyngeal secretions
- Bronchial obstruction by Tumor
- Foreign body, Congenital Malformations and Enlarged LymphNodes
Hematogenic
- Infective endocarditis
- Abdominal Sepsis
- Septic Thromboembolism
Risk Factors
Common risk factors in the development of lung abscess are
Common Risk Factors
Precipitating ( disorders of consciousness)
- Alcoholism
- Seizer disorder
- Artificial ventilation
- Coma
- Neuromuscular disorders with bulbar dysfunction
- Nocturnal Aspiration /Inability to cough
- Bronchial obstruction
Predisposing
- Gingivo-dental sepsis
- Diabetes Mellitus
- Immunosuppression
Less Common Risk factors
- Drug abuse
- Malnutrition
- Mental retardation
- Gastroesophageal reflux disease
- ↑ Puligandla PS, Laberge JM (2008). "Respiratory infections: pneumonia, lung abscess, and empyema". Semin. Pediatr. Surg. 17 (1): 42–52. doi:10.1053/j.sempedsurg.2007.10.007. PMID 18158141.