fa عمومى General پژوهشي Research Coarctation of the aorta is one of the most difficult conditions to diagnose during fetal life witch affecting with a frequency of approximately 5-8% of live births with congenital heart disease. We would like to report a case of coarctation of the aorta diagnosed prenatally at 28 weeks’ gestation. There were evidences of right ventricular and atrial enlargements, significant aortic stenosis, antegrade and retrograde flow in proximal part of descending aorta at fetal echocardiography. Since it was not appropriate time for abortion, the pregnancy was monitored and continued to termination. Surgical relief of the aortic obstruction was done in the day 20 of birth. The neonate was surgically treated successfully. Prenatal diagnosis of coarctation of the aorta is potentially life-saving and can improve the outcomes of operative conditions in infants preparing for surgery. Early detection and surgically repair of Coarctation of the aorta can significantly improve survival rate of affected neonates. Coarctation Of The Aorta, Congenital Heart Disease, Fetal Echocardiography, Prenatal Diagnosis 57 63 http://intjmi.com/browse.php?a_code=A-10-1-232&slc_lang=fa&sid=1 Alireza Golbabaei 10031947532846002152 10031947532846002152 Yes Department of Pediatrics cardiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran Ehsan Aghaei Moghaddam 10031947532846002153 10031947532846002153 No Department of Pediatrics cardiology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran Mohammad Taghi Majnoun 10031947532846002154 10031947532846002154 No Department of Pediatrics cardiology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran Ali Mirabi 10031947532846002155 10031947532846002155 No Medical Student, Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran