• Alice Goia, Elisabeth Garrido, Margaux Lefebvre, Olivier Langlois, Stéphane Derrey, Chrysanthi Papagiannaki, and Vianney Gilard.
• Department of Neurosurgery, Rouen University Hospital, Rouen, France.
• World Neurosurg. 2020 Aug 1; 140: 219-223.

BackgroundIntracranial aneurysms (IAs) are exceptional in neonates accounting for less than 2% of all IAs occurring during the first decade of life. Little is known about this pathology in this specific population. Because of its scarcity and this specific age at onset, the treatment of IA in neonates is challenging. We describe a rare case of aneurysmal subarachnoid hemorrhage in a neonate and review the current literature.Case DescriptionA 21-day-old boy was admitted for hypotonia, vomiting, and seizures. Computed tomography scan revealed a subarachnoid hemorrhage in the sylvian fissure, a frontoparietal subdural hematoma, a left middle cerebral artery (MCA) aneurysm with a diameter of 11 mm, and an infarct of the MCA frontal region. He was successfully treated with endovascular coiling, neuroprotection, and antiepileptic drugs. Immediate postoperative magnetic resonance imaging showed a good aneurysm occlusion without any further ischemia. The outcome was favorable with extubation at day 10. At follow-up, the child experienced normal psychomotor development with no motor deficit.ConclusionsRuptured IAs in neonates are rare. Subarachnoid hemorrhage is the most common presentation. Intracranial aneurysms are frequently larger than 10 mm and located on the MCA. The treatment could be surgical or endovascular depending on the characteristics of the aneurysm. There is no recommendation concerning the prevention or treatment of vasospasm in neonates.Copyright © 2020 Elsevier Inc. All rights reserved.

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