Timing of surgical repair has gradually shifted from an emergency repair, to a policy of stabilization using a variety of ventilatory strategies prior to operation. • Current recommendation is to adopt a conservative approach and delay surgical repair of the CDH until the infant stablizes from a hemodynamic and respiratory point of view.Prognostic factors in CDI-1Prognostic factors can be divided into:(A) Primary prognostic factors (Pathophysiological)These are the most important prognostic factor which affect morbidity and mortility. These factors are:Pulmonary hypoplasia (most important) Pulmonary hypertension (2nd most important)(B) Secondary or relative predictors (diagnostic/clinical)These poor prognostic factors are:(a)      tinatalDetection at an early gestational age (<24 wks) Associated extradiaphragmatic congenital anomalies Liver herniation into thorax (Liver above diaphragm)Stomach herniationinto thorax (Stomach above diaphragm) Presence of polyhydraminios Small lung to head circumference ratio (LI-IR ratio) Small fetal abdominal circumference (< than 5th percentile)(b) PostnatalEarly age (< 6 hours) of presentation PG, and PCO, unresponsive to ventilation Need for extracorporeal membrane oxygenation (ECM0)(c) Side of defect (i) Right sided defect