ABSTRACT
Eventration of the diaphragm refers to the radiographic finding of an abnormally elevated hemidiaphragm. The physiologic consequences of the loss of diaphragm function include reduced lung volume, decreased tidal volume, increased work of breathing, and respiratory insufficiency that may preclude ventilator weaning. The mobility of the mediastinum of an infant may result in significant respiratory embarrassment when the normal hemidiaphragm descends during inspiration, the mediastinum shifts to the normal side, and the eventration side paradoxically elevates.
