WebP.A. Kritek, in Encyclopedia of Respiratory Medicine, 2006 Atelectasis is the loss of volume resulting from decreased gas in a given portion of lung. The mechanisms that cause atelectasis can be divided into three categories: passive, adhesive, and resorptive. Passive atelectasis results from space-occupying lesions in either the pleural space or … WebAtelectasis Introduction Atelectasis is a condition in which there is collapse of lung tissue ( parenchyma) with loss of volume. The word "parenchyma" signifies the functional units, the alveoli, of the lungs. Atelectasis describes involvement of relatively smaller units (of alveoli).
Atelectasis - StatPearls - NCBI Bookshelf
WebJul 21, 2024 · Passive Atelectasis . Passive atelectasis denotes loss of volume as the lung retracts in the presence of pneumothorax ( Fig. 3.2 ). The lung has a natural tendency to collapse and does so when removed from the chest. While the lungs are in the thoracic cavity, this tendency is opposed by the chest wall. At the resting respiratory position ... WebNov 1, 2024 · Passive atelectasis is likely the most common form of atelectasis. It occurs secondary to the presence of air or fluid in the pleural space. The CT scan easily depicts … foe negotiation tool
Atelectasis: Types, Causes, Symptoms, Treatment - WebMD
WebMay 6, 2024 · Background. Atelectasis refers to incomplete expansion or collapse of part of the lung. It may include a lung subsegment or the entire lung and is almost always a secondary phenomenon, with no sex or race … WebPassive atelectasis occurs due to absence of contact between the parietal and visceral pleurae due to fluid ( pleural effusion ), air ( pneumothorax ), blood ( hemothorax) etc. Atelectasis of the upper lobe commonly occurs due to pneumothorax, whereas atelectasis of the middle and lower lobes occurs due to pleural effusion. WebSep 1, 2024 · Post-intubation physical examination revealed dullness to percussion, absent breath sounds and reduced chest excursion of the right hemithorax combined with a gradual drop in blood pressure and... foe new gbg