Krishna Amuluru1, Fawaz Al-Mufti2, Charles E Romero1. 1. Department of Interventional Neuroradiology, University of Pittsburgh Medical Center Hamot, Erie, Pennsylvania, USA. 2. Neuroendovascular Surgery and Neurocritical Care, Westchester Medical Center at New York Medical College, Valhalla, New York, USA.
Abstract
BACKGROUND: Acute ischemic stroke due to tandem occlusive lesions of the anterior circulation involves an intracranial large vessel occlusion as well as a concurrent occlusion or high-grade stenosis of the proximal carotid system. The vast majority of proximal lesions in tandem occlusive cases involve the extracranial internal carotid artery, although the lesion can theoretically exist anywhere along the carotid artery pathway, including the common carotid ostium. SUMMARY: To the best of our knowledge, only 1 report describes common carotid artery ostial lesions in the setting of acute ischemic stroke due to tandem occlusions, in which the authors describe an anterograde treatment paradigm. We present the first 2 cases of acute ischemic stroke secondary to common carotid ostial disease with tandem intracranial occlusion, treated with intracranial thrombectomy followed by subsequent staged balloon-mounted stenting of the common carotid ostium. We review the pathophysiology of tandem occlusions, the controversy surrounding treatment techniques, and various approaches used in the treatment of ostial occlusive lesions. KEY MESSAGE: In certain situations where acute carotid stenting is not safe or technically possible, immediate intracranial thrombectomy with a subsequent staged balloon-mounted stenting of the ostial lesion may be a reasonable and safe option.
BACKGROUND: Acute ischemic stroke due to tandem occlusive lesions of the anterior circulation involves an intracranial large vessel occlusion as well as a concurrent occlusion or high-grade stenosis of the proximal carotid system. The vast majority of proximal lesions in tandem occlusive cases involve the extracranial internal carotid artery, although the lesion can theoretically exist anywhere along the carotid artery pathway, including the common carotid ostium. SUMMARY: To the best of our knowledge, only 1 report describes common carotid artery ostial lesions in the setting of acute ischemic stroke due to tandem occlusions, in which the authors describe an anterograde treatment paradigm. We present the first 2 cases of acute ischemic stroke secondary to common carotid ostial disease with tandem intracranial occlusion, treated with intracranial thrombectomy followed by subsequent staged balloon-mounted stenting of the common carotid ostium. We review the pathophysiology of tandem occlusions, the controversy surrounding treatment techniques, and various approaches used in the treatment of ostial occlusive lesions. KEY MESSAGE: In certain situations where acute carotid stenting is not safe or technically possible, immediate intracranial thrombectomy with a subsequent staged balloon-mounted stenting of the ostial lesion may be a reasonable and safe option.
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