“…Several attempts have been made to identify some useful predictors of outcome; however, these markers fail to predict exactly whether a fetus with CDH will survive. In previous studies, some prenatal parameters have been related to the neonatal prognosis, including (1) polyhydramnios, 1 (2) the presence of an intrathoracic stomach 16,27,28 or liver, 19,29,30 (3) the lung-thorax transverse area ratio (LTR), 18,31 (4) the lung-to-head ratio, 32 and (5) fetal breathing movement. 20,21,33 In the past decade, fetal hemodynamic changes have been evaluated with Doppler fl owmetry, such as Doppler fl ow measurement of velocity in the pulmonary artery 22,34 and color fl ow mapping in the mesenteric artery, 23 umbilical vein, and venous duct.…”