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__NOTOC__
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{{Pneumonia}}
{{Aspiration pneumonia}}


{{CMG}}; {{AE}} [[Priyamvada Singh|Priyamvada Singh, M.D.]] [mailto:psingh13579@gmail.com]
{{CMG}}; {{AE}} {{SKA}}, {{SSH}}, [[Priyamvada Singh|Priyamvada Singh, M.D.]] [mailto:psingh13579@gmail.com]


==Overview==
==Overview==
Aspiration pneumonia is a part of aspiration syndrome which is consist of four classes depending on nature of aspirated substance.
Aspiration pneumonia is a part of aspiration syndrome which is consist of four classes depending on nature of aspirated substance including [[Foreign body in respiratory tract|foreign body]] aspiration, [[chemical pneumonitis]], [[Infection|bacterial infection]], and [[lipid pneumonia]]. Aspiration pneumonia, depending on the duration of systems might be classified into two groups of acute and chronic.  


== Aspiration syndrome: ==
== Classification ==
It consist of all disorders of respiratory tree due to inhalation of any substance that damages lungs.
* Aspiration pneumonia is one class of aspiration syndrome.
 
* Aspiration syndrome consists of four classes depending on nature of aspirated substance. Following are the four classes of aspiration syndrome:<ref name="pmid21311332">{{cite journal| author=Marik PE| title=Pulmonary aspiration syndromes. | journal=Curr Opin Pulm Med | year= 2011 | volume= 17 | issue= 3 | pages= 148-54 | pmid=21311332 | doi=10.1097/MCP.0b013e32834397d6 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=21311332  }}</ref><ref name="pmid25732447">{{cite journal| author=Hu X, Lee JS, Pianosi PT, Ryu JH| title=Aspiration-related pulmonary syndromes. | journal=Chest | year= 2015 | volume= 147 | issue= 3 | pages= 815-823 | pmid=25732447 | doi=10.1378/chest.14-1049 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25732447  }}</ref>
Following are the four classes of aspiration syndrome<ref name="pmid21311332">{{cite journal| author=Marik PE| title=Pulmonary aspiration syndromes. | journal=Curr Opin Pulm Med | year= 2011 | volume= 17 | issue= 3 | pages= 148-54 | pmid=21311332 | doi=10.1097/MCP.0b013e32834397d6 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=21311332  }}</ref>:
{|
 
! colspan="4" style="background:#4479BA; color: #FFFFFF;" align="center" + |Classification of aspiration syndrome
{| class="wikitable"
!Classes
!Substance involved
!Risk factor
!Mechanism of damdage
|-
|-
|Forgiven body aspiration pneumonia
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Classes
|Foreign body
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Substance involved
|childhood
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Risk factor
|traumatic
! style="background:#4479BA; color: #FFFFFF;" align="center" + |Mechanism of damdage
|-
|-
|Aspiration Pneumonitis
! style="background:#DCDCDC;" align="center" + |Mechanical [[obstruction]]
|Gastric contents,
| style="background:#F5F5F5;" align="center" + |Foreign body
|decreased level of consiousness
| style="background:#F5F5F5;" align="center" + |Childhood
|corrosive effect of acid on respiratory tract
| style="background:#F5F5F5;" align="center" + |Traumatic
|-
|-
|Aspiration pneumonia
! style="background:#DCDCDC;" align="center" + |[[Chemical pneumonitis]]
|Oral cavity bacterial flora (CAP)
| style="background:#F5F5F5;" align="center" + |[[Stomach|Gastric]] contents
|dysphagia, elderly age
| style="background:#F5F5F5;" align="center" + |[[Unconsciousness|Decreased level of consciousness]]
|similar to community acquired pneumonia
| style="background:#F5F5F5;" align="center" + |Corrosive effect of [[acid]] on [[respiratory tract]]
|-
|-
|Diffuse aspiration bronchiolitis
! style="background:#DCDCDC;" align="center" + |Bacterial [[infection]]
|Oral cavity bacterial flora
| style="background:#F5F5F5;" align="center" + |Oral cavity [[bacterial flora]]
|dysphagia, elderly age  
| style="background:#F5F5F5;" align="center" + |[[Dysphagia]], elderly age  
|similar to atypical bacterial infection of lungs
| style="background:#F5F5F5;" align="center" + |Similar to [[Community-acquired pneumonia|community acquired pneumonia]]
|-
|-
|Lipid pneumonia
! style="background:#DCDCDC;" align="center" + |[[Lipid pneumonia]]
|oil
| style="background:#F5F5F5;" align="center" + |Oil
|childhood
| style="background:#F5F5F5;" align="center" + |Childhood
|macrophages engulf lipid substances lining pulmonary tree
| style="background:#F5F5F5;" align="center" + |[[Macrophage|Macrophages]] engulf [[lipid]] substances lining [[Lung|pulmonary]] tree
|}
|}
* Aspiration pneumonia, depending on the duration of systems might be classified into two groups:
**Acute aspiration pneumonitis
**Chronic aspiration pneumonia


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}


[[Category:Diseaase]]
[[Category:Medicine]]
[[Category:Pulmonology]]
[[Category:Pulmonology]]
 
[[Category:Up-To-Date]]
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Latest revision as of 20:29, 29 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sunny Kumar MD [2], Sadaf Sharfaei M.D.[3], Priyamvada Singh, M.D. [4]

Overview

Aspiration pneumonia is a part of aspiration syndrome which is consist of four classes depending on nature of aspirated substance including foreign body aspiration, chemical pneumonitis, bacterial infection, and lipid pneumonia. Aspiration pneumonia, depending on the duration of systems might be classified into two groups of acute and chronic.

Classification

  • Aspiration pneumonia is one class of aspiration syndrome.
  • Aspiration syndrome consists of four classes depending on nature of aspirated substance. Following are the four classes of aspiration syndrome:[1][2]
Classification of aspiration syndrome
Classes Substance involved Risk factor Mechanism of damdage
Mechanical obstruction Foreign body Childhood Traumatic
Chemical pneumonitis Gastric contents Decreased level of consciousness Corrosive effect of acid on respiratory tract
Bacterial infection Oral cavity bacterial flora Dysphagia, elderly age Similar to community acquired pneumonia
Lipid pneumonia Oil Childhood Macrophages engulf lipid substances lining pulmonary tree
  • Aspiration pneumonia, depending on the duration of systems might be classified into two groups:
    • Acute aspiration pneumonitis
    • Chronic aspiration pneumonia

References

  1. Marik PE (2011). "Pulmonary aspiration syndromes". Curr Opin Pulm Med. 17 (3): 148–54. doi:10.1097/MCP.0b013e32834397d6. PMID 21311332.
  2. Hu X, Lee JS, Pianosi PT, Ryu JH (2015). "Aspiration-related pulmonary syndromes". Chest. 147 (3): 815–823. doi:10.1378/chest.14-1049. PMID 25732447.