Daniel A Hoit1, Clemens M Schirmer, Adel M Malek. 1. Department of Neurosurgery, Cerebrovascular and Endovascular Division, Tufts-New England Medical Center, Boston, Massachusetts 02111, USA.
Abstract
OBJECTIVE: Parent vessel sacrifice is a useful treatment strategy for fusiform intracranial aneurysms. Originally performed using the detachable silicone balloon, endovascular arterial occlusion is currently achieved using coils, a process which can be limited by coil mass migration. METHODS: We demonstrate the use of the Amplatzer vascular plug as a fixed anchor within the target parent vessel to facilitate coil-mediated occlusion, especially in vascular segments not encased by a bony canal. The technique was used successfully in two patients: a 90-year-old woman presenting with IIIrd and VIth cranial nerve palsy from a fusiform left cavernous internal carotid aneurysm and a 44-year-old man with distal thromboemboli from a fusiform dissecting-type right vertebral artery involving the origin of the posterior inferior cerebellar artery. RESULTS: Both patients were treated successfully with proximal parent vessel occlusion using coils after deployment of an Amplatzer vascular plug proximal to the target lesion. With the Amplatzer device acting as a fixed anchor in the parent vessel, coils were deployed proximally in a compact configuration. After deployment of the vascular plugs and coils, hermetic occlusion of the parent vessel was documented angiographically. CONCLUSION: The Amplatzer vascular plug can facilitate coil occlusion of large cervical vessels by acting as a focal coil and embolic material immobilizer, which can prevent coil mass migration and lead to improved packing density.
OBJECTIVE: Parent vessel sacrifice is a useful treatment strategy for fusiform intracranial aneurysms. Originally performed using the detachable silicone balloon, endovascular arterial occlusion is currently achieved using coils, a process which can be limited by coil mass migration. METHODS: We demonstrate the use of the Amplatzer vascular plug as a fixed anchor within the target parent vessel to facilitate coil-mediated occlusion, especially in vascular segments not encased by a bony canal. The technique was used successfully in two patients: a 90-year-old woman presenting with IIIrd and VIth cranial nerve palsy from a fusiform left cavernous internal carotid aneurysm and a 44-year-old man with distal thromboemboli from a fusiform dissecting-type right vertebral artery involving the origin of the posterior inferior cerebellar artery. RESULTS: Both patients were treated successfully with proximal parent vessel occlusion using coils after deployment of an Amplatzer vascular plug proximal to the target lesion. With the Amplatzer device acting as a fixed anchor in the parent vessel, coils were deployed proximally in a compact configuration. After deployment of the vascular plugs and coils, hermetic occlusion of the parent vessel was documented angiographically. CONCLUSION: The Amplatzer vascular plug can facilitate coil occlusion of large cervical vessels by acting as a focal coil and embolic material immobilizer, which can prevent coil mass migration and lead to improved packing density.