Congenital Diaphragmatic Hernia (CDH) is a developmental defect of the diaphragm that allows the abdominal contents to herniate into the chest. It occurs in approximately 1/2500 live births. Most defects are left sided (80-85%). CDH is commonly classified into 3 categories based on location.
Herniation of the abdominal contents results in ongoing poor growth of the lung on the same side and also secondary mass effect leading to subsequent poor growth on the opposite side lung too. These changes lead to t: