The term aneurysm of the vein of Galen is associated with a group of different vascular anomalies, with one common difference, which is the dilatation of the vein of Galen. It represents a rare vascular anomaly, the frequency of which is not yet known. Although rare, these anomalies are of special interest to interventional radiologists, because potentially endovascular treatment, which has been shown to be effective and often the only safe therapeutic modality, has changed the generally poor outcome in newborns and infants (high risk of neurological disorders, heart failure, high mortality rate of up to 90%) and have improved their chances of survival little nowadays. Patients with an aneurysm of the vein of Galen most often have cardiac and neurological complications, and the clinical picture depends on the age of presentation. Newborns tend to have high cardiac output heart failure, pulmonary hypertension and, in more severe cases, multi-organ system failure. Infants usually have hydrocephalus, convulsions, or neurocognitive delay. Older children and adults usually have headaches or intracranial bleeding. Most malformations are diagnosed in the neonatal period, while prenatal diagnosis is usually made during the third trimester of pregnancy by ultrasound visualization of an anechoic or hypoechoic round or ovoid structure with regular borders located in the midline of the posterior third ventricle. .The development of endovascular techniques has greatly improved the poor prognosis of patients. The overall goal of endovascular treatment is to restore hemodynamic balance and achieve physiologic, rather than anatomic, healing that leads to favorable neurologic and developmental outcomes. It is critical that nurses/technicians have a comprehensive knowledge of the various techniques used to access the femoral artery, potential complications, and the nursing care required to effectively manage these complications.