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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.
A pulmonary laceration can cause air to leak out of the lacerated lung [10] and into the pleural space, if the laceration goes through to it. [8] Pulmonary laceration invariably results in pneumothorax (due to torn airways ), hemothorax (due to torn blood vessels ), or a hemopneumothorax (with both blood and air in the chest cavity). [ 11 ]
Atelectasis occurs when distending pressure of the alveolus is overcome by surface tension of fluid within the alveolus. Repeated atelectasis and re-inflation leads to atelectotrauma . Atelectotrauma , atelectrauma , cyclic atelectasis or repeated alveolar collapse and expansion ( RACE ) are medical terms for the damage caused to the lung by ...
This can cause a steadily worsening oxygen shortage and low blood pressure. This leads to a type of shock called obstructive shock, which can be fatal unless reversed. [3] Very rarely, both lungs may be affected by a pneumothorax. [6] It is often called a "collapsed lung", although that term may also refer to atelectasis. [1]
Asbestos-related diseases are disorders of the lung and pleura caused by the inhalation of asbestos fibres. Asbestos-related diseases include non-malignant disorders such as asbestosis (pulmonary fibrosis due to asbestos), diffuse pleural thickening, pleural plaques, pleural effusion, rounded atelectasis and malignancies such as lung cancer and malignant mesothelioma.
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 ().
Signs on x-ray that are more commonly seen than the object itself and can be indicative of foreign body aspiration include visualization of the foreign body or hyperinflation of the affected lung. [13] Other x-ray findings that can be seen with foreign body aspiration include obstructive emphysema, atelectasis, and consolidation. [8]
Conditions that limit the ability of the lung tissue to exchange oxygen and carbon dioxide between the blood and the air within the lungs. Any disease which can damage the lung tissue can fit into this category. The most common causes are (in no particular order) infections, interstitial lung disease, and pulmonary edema. Causes of respiratory ...