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Abstract

A case of a giant aneurysm of the right middle cerebral artery treated with Guglielmi detachable coils is reported. Extracranial to intracranial bypass had previously been performed and surgical trapping had been attempted.

During the endovascular procedure, balloon test occlusion of the middle cerebral artery was performed in order to demonstrate clinical and angiographic tolerance to parent vessel occlusion. A previous occlusion test in the right common carotid artery did not show sufficient flow through the bypass to perform safe parent vessel occlusion.

Diagnostic imaging, the endovascular procedure, and haemodynamic aspects in cases in which parent vessel occlusion is required after extracranial-intracranial bypass are described and the literature is reviewed.

Keywords

cerebral aneurysms giant aneurysms EC-IC bypass endovascular occlusion coils balloon occlusion

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Treatment of a Giant Aneurysm of the Right Middle Cerebral Artery with GDCs after Extracranial to Intracranial Bypass

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