Sandbox:Aditya: Difference between revisions

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===Based on Etiology===
===Based on Etiology===
'''Primary'''<ref name="pmid22347342">{{cite journal |vauthors=Wali SO |title=An update on the drainage of pyogenic lung abscesses |journal=Ann Thorac Med |volume=7 |issue=1 |pages=3–7 |year=2012 |pmid=22347342 |pmc=3277038 |doi=10.4103/1817-1737.91552 |url=}}</ref> :When Abscess develops among patients who were healthy previously or with high risk factors such as those prone for aspiration
'''Primary'''<ref name="pmid22347342">{{cite journal |vauthors=Wali SO |title=An update on the drainage of pyogenic lung abscesses |journal=Ann Thorac Med |volume=7 |issue=1 |pages=3–7 |year=2012 |pmid=22347342 |pmc=3277038 |doi=10.4103/1817-1737.91552 |url=}}</ref> ''':''' When Abscess develops among patients who were healthy previously or with high risk factors such as those prone for aspiration
*Aspiration of oropharyngeal secretions  
*Aspiration of oropharyngeal secretions  
*Immunodeficiency conditions like HIV
*Immunodeficiency conditions like HIV
*Necrotizing pneumonitis
*Necrotizing pneumonitis
'''Secondary''' When abscess develops among patients with an underlying lung abnormality
'''Secondary'''''':''' When abscess develops among patients with an underlying lung abnormality
*Bronchial obstruction  
*Bronchial obstruction  
*Hematogenic dissemination  
*Hematogenic dissemination  

Revision as of 18:33, 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[2] : 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

  • Alcoholism
  • Seizer disorder
  • Artificial ventilation
  • Coma
  • Neuromuscular disorders with bulbar dysfunction
  • Nocturnal Aspiration /Inability to cough
  • Bronchial obstruction
  • Gingivo-dental sepsis
  • Diabetes Mellitus
  • Immunosuppression

Less Common Risk factors

  • Drug abuse
  • Malnutrition
  • Mental retardation
  • Gastroesophageal reflux disease
  1. 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.
  2. Wali SO (2012). "An update on the drainage of pyogenic lung abscesses". Ann Thorac Med. 7 (1): 3–7. doi:10.4103/1817-1737.91552. PMC 3277038. PMID 22347342.