Protection of Anastomotic Pathways to the Vertebral Artery During Stenting of External Carotid Artery Stenosis -Case Report-

作者：Yamagata Toru^*; Mitsuhashi Yutaka; Nishio Akimasa; Kawakami Taichiro; Yoshimura Masaki; Urano Yumiko; Yamagata Keiji; Ohata Kenji

来源：Neurologia Medico-Chirurgica, 2010, 50(11): 1001-1005.

DOI：10.2176/nmc.50.1001

• amaurosis fugax
• external carotid artery stenosis
• stenting
• distal protection

A 61-year-old man presented with a severe external carotid artery (ECA) stenosis with concomitant ipsilateral internal carotid artery (ICA) occlusion manifesting as amaurosis fugax The left ophthalmic artery was supplied from the left ECA The left intracranial ICA was supplied by the collateral flow from the contralateral ICA and ipsilateral ECA through the ophthalmic artery The left vertebral artery also participated in the latter collateral pathway through the left occipital artery and ascending pharyngeal artery Percutaneous revascularization of the ECA was performed using a nitinol self-expanding stent To prevent embolic complications through the ophthalmic or vertebral arteries, distal protection was performed using a balloon During a 22-month follow-up period, the patient was completely free from any ocular or neurological symptoms The present case of severe ECA stenosis with ipsilateral ICA occlusion showed that percutaneous balloon angioplasty with stenting is feasible and effective This intervention requires cautious evaluation of the anastomotic pathways connecting the ECA to the cerebral circulation to avoid embolic complications

• 出版日期2010-11