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Management of Acute Ischemic Stroke Caused by Tandem Lesions Successfully Treated With Intracranial Thrombectomy Without Cervical Stenting: A Case Report and Literature Review

摘要


Tandem lesions refer to the simultaneous presence of an intracranial occlusion within the anterior circulation and high-grade ipsilateral stenosis or occlusion of the cervical internal carotid artery. Intracranial thrombectomy is central to treating tandem lesions. However, it is not known whether performing the intracranial thrombectomy before or after dealing with the cervical lesion leads to different outcomes. In addition, there is no consensus in choosing an optimal treatment strategy, whether it be acute stenting, angioplasty, or conservative treatment for the cervical lesion. We report the procedure and outcome of a case with tandem lesions at the M1 segment of the right middle cerebral artery and innominate artery that was treated with an intracranial-first thrombectomy. Initially, the pre-procedure therapeutic strategy for this case was to treat the cervical tandem occlusion extracranially first, but this was unsuccessful. The intracranial thrombus was resolved; however, the extracranial thrombus in the innominate artery remained because we failed to retrieve it. Therefore, we present this case report with a literature review describing therapeutic strategies for tandem lesion occlusions. The published literature revealed no consensus or optimized protocol for treating tandem occlusions; this issue thus requires further study.

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