• Tetsuyoshi Horiuchi, Junpei Nitta, Yoshinari Miyaoka, Alhusain Nagm, Keiji Tsutsumi, Kiyoshi Ito, and Kazuhiro Hongo.
• Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan; Kobayashi Neurosurgical Hospital, Nagano, Japan. Electronic address: tetuyosi@shinshu-u.ac.jp.
• World Neurosurg. 2017 Jun 1; 102: 65-71.

BackgroundMechanical endovascular embolectomy using stent retrievers has gained popularity for treatment of large vessel occlusion in acute ischemic stroke. Use of open embolectomy as a direct surgical treatment has been limited, likely owing to the technical difficulty, therapeutic time window, and time-consuming procedure.MethodsWe retrospectively reviewed clinical and radiographic records of patients who underwent open embolectomy for major artery occlusion at an acute stage. Clinical features, complications, and outcome of patients were analyzed.ResultsFrom January 2004 to September 2016, 153 patients underwent 157 open embolectomies for major artery occlusion. Complete recanalization was achieved in 96.2% of patients. A favorable outcome was observed in 43.9%. Cerebral aneurysm along the occluded artery was observed in 11 patients with 12 aneurysms.ConclusionsOpen embolectomy resulted in a high complete recanalization rate with an acceptable safety profile. Open embolectomy is a safe and durable method of cerebral recanalization in patients with embolic stroke and can be considered as a potential treatment if endovascular embolectomy cannot be performed. The details of the occluded arteries presented here will be useful for endovascular surgeons to prevent complications.Copyright © 2017 Elsevier Inc. All rights reserved.

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