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Year : 2021  |  Volume : 16  |  Issue : 4  |  Page : 881-885

Understanding of pathophysiology and optimal treatment for anterior circulation large vessel occlusion beyond 24 h from onset of stroke

1 Department of Neurosurgery, Shinsuma General Hospital, Suma-Ku, Kobe, Japan
2 Department of Neurosurgery, Seisho Hospital, Odawara, Kanagawa, Japan
3 Department of Neurosurgery, Kobe University Graduate School of Medicine, Kusunoki-Cho, Kobe, Hyogo, Japan

Correspondence Address:
Dr. Takashi Mizowaki
Department of Neurosurgery, Shinsuma General Hospital, 3-1-14 Kinugake-Cho, Suma-Ku, Kobe 654-0048, Hyogo
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_554_20

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We report three cases in which endovascular treatment (EVT) was performed for anterior circulation large vessel occlusion (LVO) beyond 24 h from the onset of stroke. Case 1 experienced left hemispatial neglect and gait disorder due to right internal cerebral artery (ICA) occlusion and underlying atherosclerosis. After percutaneous transluminal angioplasty (PTA), revascularization with mild stenosis was achieved. Case 2 complained of reduced activity, motor aphasia, and right-sided hemiparesis due to left middle cerebral artery occlusion. After thrombectomy using a retrieval stent, revascularization with M1 stenosis and distal perfusion delay was observed, which improved after PTA. Case 3 arrived at our hospital 30 h after the onset of dysarthria and gait disturbance due to left ICA occlusion. Since the symptoms were mild, medical treatment was started; however, the patient's symptoms deteriorated 6 h later, and EVT was required. After thrombectomy using a retrieval stent, revascularization was achieved. LVO pathophysiology beyond 24 h of stroke onset varies and may require multimodal treatment. Preserving the pyramidal tract may lead to favorable outcomes, even in cases of anterior circulation LVO. EVT may be effective for anterior circulation LVO because, in some patients, infarct volume continues to increase >24 h after stroke onset.

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