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Atelectasis is the partial collapse or closure of a lung resulting in reduced or absence in gas exchange. It is usually unilateral, affecting part or all of one lung. [2] It is a condition where the alveoli are deflated down to little or no volume, as distinct from pulmonary consolidation, in which they are filled with liquid.
It is often called a "collapsed lung", although that term may also refer to atelectasis. [1] A primary spontaneous pneumothorax is one that occurs without an apparent cause and in the absence of significant lung disease. [3] A secondary spontaneous pneumothorax occurs in the presence of existing lung disease.
Image shows early occurrence of tracheal deviation. Tracheal deviation is a clinical sign that results from unequal intrathoracic pressure within the chest cavity.It is most commonly associated with traumatic pneumothorax, but can be caused by a number of both acute and chronic health issues, such as pneumonectomy, atelectasis, pleural effusion, fibrothorax (pleural fibrosis), or some cancers ...
Notably, post-operative atelectasis is thought to be caused by general anesthesia administration. Collapse of the affected lung shifts mediastinal structure towards the same side and can be observed on chest x-ray or CT. Radiographic features include increased opacification of collapsed lung and/or tracheal shift. [14]
Collapsed lung or pneumothorax is an accumulation of air in the chest causing the lung to separate from the chest wall. Collapsed lung may also refer to: Atelectasis, collapse of the air-containing sacs of the lung; Collapsed Lung (band), a British hip-hop band
Atelectasis: small air pockets within the lung collapse; Complications that arise from treatment in a hospital: blood clots formed by lying down for long periods of time, weakness in muscles that are used for breathing, stress ulcers, and issues with mental health and depression. Failure of multiple organs
It can also cause a collapsed lung (atelectasis). [3] Massive hemothorax, often defined as over 1.5 liters of blood initially when an intercostal drain is placed, or a bleeding rate greater than 200ml per hour, can result in shock with two causes: massive bleeding resulting from hypovolemic shock, and venous pressure from the retained blood ...
Overdistension of alveoli and cyclic atelectasis (atelectotrauma) are the primary causes for alveolar injury during positive pressure mechanical ventilation.Severe injury to alveoli causes swelling of the tissues (edema) in the lungs, bleeding of the alveoli, loss of surfactant (decrease in lung compliance) and complete alveoli collapse ().