From the Research
Linear atelectasis occurs due to airway obstruction, compression of lung parenchyma, or increased surface tension in alveoli and bronchioli, as described in the study by 1. This condition is characterized by the collapse of lung tissue in a linear or plate-like pattern, typically resulting from hypoventilation or compression of lung tissue. The causes of linear atelectasis include:
- Shallow breathing, which may occur during prolonged bed rest, after surgery, or with pain that limits deep breathing
- Pleural effusions, pneumothorax, or masses that compress adjacent lung tissue
- Mucus plugging of airways, which can block smaller bronchioles and lead to linear atelectasis The collapsed lung tissue appears as linear opacities on chest imaging, often in the lower lung zones where compression is most likely. According to the study by 1, chest radiographs using both the anterior-posterior and lateral projections are mandatory to document the presence of atelectasis. The treatment of linear atelectasis varies depending on the underlying cause, but it usually resolves with deep breathing exercises, incentive spirometry, early mobilization, and adequate pain control, as these interventions help re-expand the collapsed alveoli by increasing lung volume and improving ventilation. If mucus plugging is the cause, chest physiotherapy and proper hydration may help clear secretions, as suggested by the study by 1.