Bronchitis pathophysiology: Difference between revisions

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(Created page with "{{CMG}} {{Bronchitis}} ==Overview== Bronchitis is usually a diagnosis of exclusion. Presence of cough without fever lasting more than 5 days and with normal vitals (no tachyp...")
 
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Bronchitis is usually a diagnosis of exclusion. Presence of cough without fever lasting more than 5 days and with normal vitals (no tachypnea or tachycardia) is suggestive of acute bronchitis. The presentation may vary according to the pathogen involved.
Bronchitis is usually a diagnosis of exclusion. Presence of cough without fever lasting more than 5 days and with normal vitals (no tachypnea or tachycardia) is suggestive of acute bronchitis. The presentation may vary according to the pathogen involved.
==Pathophysiology==
==Pathophysiology==
* Acute bronchitis is the inflammatory response of bronchial epithelium to infections or irritants.
* Acute bronchitis is the inflammatory response of the bronchial epithelium to infections or irritan
* Bronchitis caused by influenza virus shows an epithelial-cell desquamation in association with the presence of a lymphocytic cellular infiltrate


* Bronchitis caused by influenza virus shows an epithelial-cell desquamation in association with the presence of a lymphocytic cellular infiltrate
* Thickening of the bronchial and tracheal mucosa due to inflammation is also seen.
 
* The hyperemia and edema of the bronchial mucosa decreases the bronchial mucociliary function. As a result of which the air passages become clogged by debris and causes copious mucus  secretion, which causes the characteristic cough of bronchitis.


* Thickening of the bronchial and tracheal mucosa due to inflammation is also seen.  
* In mycoplasma pneumonia, bronchial irritation results from the attachment of the organism to the respiratory mucosa resulting in sloughing of affected cells.


==References==
==References==

Revision as of 22:11, 28 February 2012

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Bronchitis Main page

Patient Information

Overview

Causes

Classification

Acute bronchitis
Chronic bronchitis

Differential Diagnosis

Overview

Bronchitis is usually a diagnosis of exclusion. Presence of cough without fever lasting more than 5 days and with normal vitals (no tachypnea or tachycardia) is suggestive of acute bronchitis. The presentation may vary according to the pathogen involved.

Pathophysiology

  • Acute bronchitis is the inflammatory response of the bronchial epithelium to infections or irritan
  • Bronchitis caused by influenza virus shows an epithelial-cell desquamation in association with the presence of a lymphocytic cellular infiltrate
  • Thickening of the bronchial and tracheal mucosa due to inflammation is also seen.
  • The hyperemia and edema of the bronchial mucosa decreases the bronchial mucociliary function. As a result of which the air passages become clogged by debris and causes copious mucus secretion, which causes the characteristic cough of bronchitis.
  • In mycoplasma pneumonia, bronchial irritation results from the attachment of the organism to the respiratory mucosa resulting in sloughing of affected cells.

References


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