Atelectasis causes: Difference between revisions
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==Overview== | ==Overview== | ||
==Causes== | ==Causes== | ||
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The most common cause is post-surgical atelectasis, characterized by splinting, restricted breathing after abdominal surgery. Outside of this context, atelectasis implies some blockage of a [[bronchiole]] or [[bronchus]], which can be within the airway (foreign body, mucus plug), from the wall (tumor, usually [[squamous cell carcinoma]]) or compressing from the outside ([[tumor]], [[lymph node]], [[Tuberculosis|tubercle]]). Another cause is poor [[pulmonary surfactant|surfactant]] spreading during [[Inhalation|inspiration]], causing an increase in [[surface tension]] which tends to collapse smaller alveoli. | The most common cause is post-surgical atelectasis, characterized by splinting, restricted breathing after abdominal surgery. Outside of this context, atelectasis implies some blockage of a [[bronchiole]] or [[bronchus]], which can be within the airway (foreign body, mucus plug), from the wall (tumor, usually [[squamous cell carcinoma]]) or compressing from the outside ([[tumor]], [[lymph node]], [[Tuberculosis|tubercle]]). Another cause is poor [[pulmonary surfactant|surfactant]] spreading during [[Inhalation|inspiration]], causing an increase in [[surface tension]] which tends to collapse smaller alveoli. | ||
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Revision as of 18:41, 21 August 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Assistant Editor-in-Chief: Somal Khan, M.D.
Overview
Causes
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The most common cause is post-surgical atelectasis, characterized by splinting, restricted breathing after abdominal surgery. Outside of this context, atelectasis implies some blockage of a bronchiole or bronchus, which can be within the airway (foreign body, mucus plug), from the wall (tumor, usually squamous cell carcinoma) or compressing from the outside (tumor, lymph node, tubercle). Another cause is poor surfactant spreading during inspiration, causing an increase in surface tension which tends to collapse smaller alveoli.