from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Total or partial collapse of the lung.
- n. A congenital condition characterized by the incomplete expansion of the lungs at birth.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The collapse of a part of or the whole lung caused by inner factors rather than a pneumothorax.
from The Century Dictionary and Cyclopedia
- n. Imperfect dilatation, especially of the air-cells of the lungs of newly born children.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. collapse of an expanded lung (especially in infants); also failure of pulmonary alveoli to expand at birth
The thought here is that those patients with more edema might benefit more from higher PEEP.Interestingly, in some patients PEEP seems to cause harmful overdistention without eliminating the atelectasis.
Too high a tidal volume or a pressure and we risk various forms of barotrauma and too little of either seems to be associated with atelectasis ,blood shunting and another form of ventilator induced lung damage from forces related to opening and closing of gas exchange units.
With the now commonplace use of low tidal volumes one would expect more micro-atelectasis and it seems reasonable that higher PEEP might be needed to mitigate that tendency.
Obstructive foreign bodies cause atelectasis, drowned lung, and eventually pulmonary abscess.
When a bronchus is completely obstructed by the bulk of the foreign body itself immediate removal is urgently demanded to prevent serious lung changes, resulting from atelectasis and want of drainage.
An atelectasis here exists; the air imprisoned in the lung is soon absorbed, and secretions rapidly accumulate.
-- Radiograph showing pathology resulting from complete obstruction of a bronchus with atelectasis and drowned lung resulting.
The most common adverse reactions in patients treated with OFIRMEV were nausea, vomiting, headache, and insomnia in adult patients and nausea, vomiting, constipation, pruritus, agitation, and atelectasis in pediatric patients.
Formation of atelectasis and inadequate oxygenation with very low tidal volumes may be important factors.
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