Introduction: (AVM) are important noncardiac cause of heart failure in neonates and young infants, therefore antenatal detection and monitoring are essential for proper management.Objective: Assess fetal cardiac findings in patients diagnosed antenatally with (AVM).Method: Retrospective Review of consecutive Fetal Echocardiograms then Patients diagnosed antenatally with (AVM)/ Aneurysm of vein of Galen (AVG) at a tertiary care cardiac center.Results : Total number of Fetal echocardiograms were 1460, 4 patients had (AVG) two underwent Successful occlusion by catheter intervention and two died #1 and #4, patient #5 had Large Pulmonary fistula which was occluded successfully by catheter intervention, as illustrated in Table 1, all patients had progressive course with increased combined cardiac output, Conclusions: 1.Fetal Echocardiography is useful in diagnosis and prediction of management and outcome of patients with (AVM).2.Presence of severe multiple congenital anomalies /hydrops/pseudocoarctation/ marked increase in combined cardiac output or (MR with AVG) could be predictors for poor prognosis of patients with ( AVM)/(AVG).