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Aspiration Pneumonia

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  1. Epidemiology
    1. Represents <15% of all community acquired Pneumonia
  2. Risk Factors
    1. Underlying Neurologic disease or Impairment
      1. Cerebrovascular Accident
      2. Dementia
    2. Esophageal dysfunction
  3. Etiology: Anaerobic Bacteria or Mixed oropharyngeal flora
    1. Bacteroides
    2. Peptostreptococcus
    3. Microaerophilic Streptococcus
    4. Fusobacterium
    5. Nocardia
  4. Pathophysiology
    1. Necrotizing infection may lead to cavitation
    2. Affects dependent lung lobes
  5. Symptoms
    1. Low grade fever
    2. Weight loss
    3. Productive cough with foul smelling Sputum
  6. Labs
    1. Sputum Gram Stain unreliable
    2. Sputum Culture unreliable
  7. Radiology: Images
    1. RadAspirationPneumoniaPaMedPix6057.jpg
    2. RadAspirationPneumoniaLateralMedPix6058.jpg
  8. Management: Antibiotics
    1. First Line
      1. Clindamycin 450-900 mg IV q8 hours
    2. Alternative
      1. Cefoxitin 2 grams IV q8 hours
      2. Ticarcillin-Clavulanate (Timentin) 3.1 grams IV q6h
      3. Piperacillin-Tazobactam (Zosyn) 3.375 g IV q6 hours
  9. Prevention
    1. Evaluate with Swallowing Exam
    2. Dysphagia Diet for moderate to severe Dysphagia
  10. References
    1. Gilbert (2001) Sanford Antimicrobial, p. 28
    2. Lomotan (1997) Postgrad Med 102(2):225
    3. Sasaki (1997) Intern Med 36(12):851

Aspiration Pneumonia (C0032290)

Definition (MSH)A type of lung inflammation resulting from the aspiration of food, liquid, or gastric contents into the upper RESPIRATORY TRACT.
ConceptsDisease or Syndrome (T047)
ICD9507.0
MSHD011015
EnglishASPIRATION PNEUMONIA, Aspiration Pneumonias, Inhalation pneumonia, Mendelson's syndrome
Spanishneumonia aspirativa, neumonia por aspiracion, neumonia por inhalacion
Parent ConceptsInfection (C0021311), Lung diseases (C0024115), Pneumonia (C0032285), Aspiration pneumonitis (C1761609), Ambiguous concept (C1274012)
SourcesCOSTAR, CST, DXP, LCH, MSH, MTH, MTHICD9, NCI, NDFRT, OMIM, QMR, RAM, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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