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Common risk factors in the development of lung abscess are
Common risk factors in the development of lung abscess are
===Common Risk Factors===
===Common Risk Factors===
*Elderly( age >65)
Precipitating ( disorders of consciousness)
*Alcoholism
*Alcoholism
*Seizer disorder
*Artificial ventilation
*Artificial ventilation
*Coma
*Coma
*Neuromususcular disorders with bulbar disfunction
*Neuromuscular disorders with bulbar dysfunction
*Convulsions
*Nocturnal Aspiration /Inability to cough
*Inability to cough
*Bronchial obstruction
*Bronchial obstruction
 
Predisposing
*Gingivo-dental sepsis
*Diabetes Mellitus
*Immunosuppression
===Less Common Risk factors===
===Less Common Risk factors===
*Drug abuse
*Drug abuse
*Dental/peridental infections
*Malnutrition
*Malnutrition
*Therapy with corticosteroids
*Cryostatic's or immunosuppressants
*Mental retardation
*Mental retardation
*Gastroesophageal reflux disease
*Gastroesophageal reflux disease

Revision as of 17:48, 23 January 2017

Classification

Based on duration

  • Acute If symptoms are present for less than 6 weeks before presenting to medical care
  • 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