We report a case in which endovascular treatment (EVT) was performed for vertebral and basilar artery (VA and BA) tandem occlusion beyond 24 hours from onset of stroke. A 78-year-old man was admitted to our institution with dysarthria and disturbance of gait. MRI revealed occlusion of the BA with acute ischemic change in bilateral cerebellum and brain stem. At 36 hours after onset and 30 hours after administration, EVT was performed because of deteriorating neurological symptom. Successful revascularization was achieved with percutaneous transluminal angioplasty for VA and thrombectomy for BA occlusion. The neurological symptoms were improved in postoperative course.
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