Macklin effect
Updates to Article Attributes
The Macklin effect describes one of the pathophysiological process of pneumomediastinum in blunt chest trauma. The Macklin effect accounts for ~40% of severe blunt traumatic pneumomediastinum. Exclusion of tracheobronchial and oesophageal causes of pneumomediastinum is mandatory to exclude concomitant injury 1.
Pathology
The proposed mechanism is alveolar rupture with air dissecting along bronchovascular sheaths and into the mediastinum1.
The Macklin effect account for ~40% of severe blunt traumatic pneumomediastinum. Exclusion of tracheobronchial and oesophageal cause of pneumomediastinum is mandatory to exclude concomitant injury 1.
Radiographic features
CT
Pulmonary interstitial emphysema with air tracking along the bronchovascular sheaths towards the hilum and associated pneumomediastinum.
History and etymology
The pathophysiologic process was first proposed by C C Macklin in 1939 2.
-<p>The<strong> Macklin effect</strong> describes one of the pathophysiological process of <a href="/articles/pneumomediastinum">pneumomediastinum</a> in blunt chest trauma. The proposed mechanism is alveolar rupture with air dissecting along bronchovascular sheaths and into the mediastinum <sup>1</sup>.</p><p>The Macklin effect account for ~40% of severe blunt traumatic pneumomediastinum. Exclusion of tracheobronchial and oesophageal cause of pneumomediastinum is mandatory to exclude concomitant injury <sup>1</sup>.</p><h4>Radiographic features</h4><h5>CT</h5><p>Pulmonary interstitial emphysema with air tracking along the bronchovascular sheaths towards the hilum and associated pneumomediastinum. </p><h4>History and etymology</h4><p>The pathophysiologic process was first proposed by <strong>C C Macklin</strong> in 1939 <sup>2</sup>.</p>- +<p>The<strong> Macklin effect</strong> describes one of the pathophysiological process of <a href="/articles/pneumomediastinum">pneumomediastinum</a> in blunt chest trauma. The Macklin effect accounts for ~40% of severe blunt traumatic pneumomediastinum. Exclusion of tracheobronchial and oesophageal causes of pneumomediastinum is mandatory to exclude concomitant injury <sup>1</sup>.</p><h4>Pathology</h4><p>The proposed mechanism is alveolar rupture with air dissecting along bronchovascular sheaths and into the mediastinum <sup>1</sup>.</p><h4>Radiographic features</h4><h5>CT</h5><p>Pulmonary interstitial emphysema with air tracking along the bronchovascular sheaths towards the hilum and associated pneumomediastinum. </p><h4>History and etymology</h4><p>The pathophysiologic process was first proposed by <strong>C C Macklin</strong> in 1939 <sup>2</sup>.</p>