Diaphragmatic paralysis refers to the impaired or absent movement of the diaphragm, a crucial muscle for respiration, typically due to phrenic nerve dysfunction. In lung ultrasound, this condition manifests as reduced or paradoxical diaphragmatic excursion, where the affected side moves upwards during inspiration instead of downwards. This can lead to significant respiratory compromise, particularly in critically ill patients.
Ultrasound is a valuable, non-invasive tool for diagnosing diaphragmatic paralysis by directly visualizing diaphragmatic motion. This real-time assessment aids clinicians in identifying the cause of respiratory distress, guiding treatment strategies, and monitoring recovery. Early detection via ultrasound is key for optimal patient management in cases of suspected diaphragmatic dysfunction.