RT Book, Section A1 Bianchi, Diana W. A1 Crombleholme, Timothy M. A1 D'Alton, Mary E. A1 Malone, Fergal D. SR Print(0) ID 1106397564 T1 Congenital Diaphragmatic Hernia T2 Fetology: Diagnosis and Management of the Fetal Patient, 2e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 978-0-07-144201-5 LK obgyn.mhmedical.com/content.aspx?aid=1106397564 RD 2024/04/19 AB Key PointsDefect in formation of diaphragm that is associated with pulmonary hypoplasia.Incidence is around 1 in 2200 with 85% to 90% being left sided, 10% to 15% right sided, and 2% bilateral.Approximately 60% of cases are isolated and 40% are complex or syndromic.Multiple sonographic and MRI techniques have been described to predict lung volume, which is an important predictor of survival. Liver position is also very important with regard to outcome.In the most severe cases of congenital diaphragmatic hernia (CDH), the fetal tracheal occlusion (FETO) with a balloon is removed prior to delivery “or EXIT-to-ECMO offers the best hope for survival.”All fetuses with CDH should be delivered in a tertiary center with specific neonatal and surgical expertise in this condition and ECMO capability.Cesarean section delivery is indicated only for standard obstetrical reasons.Approximately a dozen single-gene disorders have CDH as a major feature. With increased cytogenetic resolution through array cGH, more syndromic cases are being recognized as being associated with a chromosome abnormality. Fetal karyotype is indicated.