Surgery to repair the eventration of the
diaphragmDiaphragm
Diaphragm and lungs
Diaphragmatic hernia repair - series
The diaphragm is done to restore
normalNormal saline flush lung expansion and
contractionFetal heart and uterine contraction monitor
Fetal heart monitoring
Tension headache during ventilation. Without repair, the lung is more susceptible to infection, such as pneumonia. Pneumonia itself may make it more likely for your son to develop recurrent pneumonia. Since the airways in the left lung are abnormally shaped, it is most important that steps be taken so that the right lung functions normally. That may be why his doctors expressed a sense of urgency about the surgery.
However this is major surgery. Historically it has required a full thoracotomy. There are reports of this surgery being done by thoracoscopy with less risk. You should ask your son's doctors about this and if this approach might be appropriate for him.
The narrow, abnormally shaped airways are another matter. Simple hyperreactive airways are usually normal in shape. You should ask the doctor who did the bronchoscopy to give you more information about what these findings might indicate. In any event the reactive airways are treatable.