Search Results - "Shinya KOHYAMA"

Preprocedural Prediction of Underlying Atherosclerotic Lesions in Cerebral Large-Vessel Occlusions: Clinical Backgrounds, Radiological Findings, and Treatment Outcomes by Kuribara, Tomoyoshi, Sato, Hiroki, Iihoshi, Satoshi, Tsukagoshi, Eisuke, Teranishi, Akio, Kinoshita, Yu, Sugasawa, Shin, Kohyama, Shinya, Takahashi, Shinichi, Kurita, Hiroki

“…Aims: Mechanical thrombectomy using a standard device has been effective for acute cerebral large-vessel occlusions, particularly those due to cardiogenic…”
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Recurrent Stroke with Rapid Development of Intracranial Artery Stenosis and Subsequent Successful Mechanical Thrombectomy in Essential Thrombocythemia by Kato, Yuji, Iijima, Shohei, Kohyama, Shinya, Maeda, Tomoya, Sato, Tsugumi, Takahashi, Shinichi, Suda, Satoshi

“…Essential thrombocythemia is a myeloproliferative neoplasm. Ischemic stroke is frequently the first manifestation of essential thrombocythemia. We herein…”
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Thrombectomy for acute large vessel occlusion in posterior and anterior circulation: a single institutional retrospective observational study by Kuribara, Tomoyoshi, Iihoshi, Satoshi, Tsukagoshi, Eisuke, Teranishi, Akio, Kinoshita, Yu, Sugasawa, Shin, Kohyama, Shinya, Takahashi, Shinichi, Kurita, Hiroki

“…Purpose Thrombectomy has been the gold standard therapy for anterior circulation occlusion; however, studies regarding thrombectomy in posterior circulation…”
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Unique guiding catheter induction technique using aspiration catheter and Amplatz super-stiff guidewire for thrombectomy by Tsukagoshi, Eisuke, Sato, Hiroki, Kohyama, Shinya

“…•Thrombectomy was performed by guiding the GC by stretching the vessel with strong tortuosity using the Amplatz wire.•Using an aspiration catheter allows the…”
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Endovascular treatment of a small ruptured non-traumatic internal carotid artery aneurysm presenting with repeated massive epistaxis by Mizuhashi, Satomi, Kohyama, Shinya

“…•A small non-traumatic aneurysm causing massive epistaxis is rare.•There is an absence of bone between the carotid artery and the sphenoid sinus is present in…”
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A Study of Factors Affecting Functional Outcomes in Patients With Successful Recanalization by Mechanical Thrombectomy by Deguchi, Ichiro, Osada, Takashi, Nakagami, Toru, Kohyama, Shinya, Takahashi, Shinichi

“…Reperfusion therapy is typically performed in cases with acute cerebral infarction. Mechanical thrombectomy (MT) achieves superior recanalization and favorable…”
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One-Way Valve Method for Achieving Effective Flow Reversal on Carotid Artery Stenting by Yoshikawa, Shinichiro, Iihoshi, Satoshi, Kasakura, Shigen, Tsukagoshi, Eisuke, Kohyama, Shinya

“…Objective: We report a simplified method of manual transfusion with a one-way valve during carotid artery stenting (CAS) with flow reversal.Case Presentation:…”
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Endovascular Treatment of Intracranial Hypertension Associated with Venous Sinus Stenosis due to Tumor Compression by Mizuhashi, Satomi, Kohyama, Shinya

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Reversed-Image Mechanical Thrombectomy for Acute Ischemic Stroke in a Situs Inversus Totalis Patient by Tamada, Keita, Sato, Hiroki, Iihoshi, Satoshi, Imaoka, Yukihiro, Yoshikawa, Shinichiro, Kurita, Hiroki, Kohyama, Shinya

“…An 85-year-old female with situs inversus totalis presented with right hemiplegia, right facial nerve palsy, eye deviation to the left, and aphasia. Magnetic…”
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Subarachnoid Hemorrhage of Unknown Cause after Transvenous Embolization of Transverse Sigmoid Sinus Dural Arteriovenous Fistula Followed by Transarterial Embolization: A Case Report by Kojima, Takeo, Yonezawa, Azusa, Yajima, Tasuku, Nakazawa, Takahiko, Kagoshima, Kaiei, Yoshida, Takaaki, Kohyama, Shinya

“…Objective: Dural arteriovenous fistula (dAVF) is generally treated by endovascular therapy, but transarterial embolization (TAE) carries the risk of potential…”
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Effect of Intravenous Thrombolysis and Mechanical Thrombectomy on the Incidence of Acute Symptomatic Seizure and Post-Stroke Epilepsy in Patients with Acute Large-Vessel Occlusion by Ishihara, Hideaki, Kohyama, Shinya, Nishida, Sho, Kumagai, Kosuke, Hayashi, Shinji, Kato, Hiroshi

“…Objective: Reperfusion therapy, such as intravenous tissue-plasminogen activator (IV-tPA) and mechanical thrombectomy (MT) for acute ischemic stroke, may…”
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Anomalous origin of the posterior inferior cerebellar artery from the jugular branch of the ascending pharyngeal artery: A case report by Iihoshi, Satoshi, Kohyama, Shinya

“…The posterior inferior cerebellar artery usually arises from the vertebral artery and has several variants. The posterior inferior cerebellar artery…”
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Initial results of clazosentan with multiple-drug management for the prevention of cerebral vasospasm after aneurysmal subarachnoid hemorrhage by Kimura, Tatsuki, Suzuki, Kaima, Sato, Hiroki, Shibata, Aoto, Take, Yushiro, Ooigawa, Hidetoshi, Yoshimura, Masataka, Kohyama, Shinya, Kurita, Hiroki

“…Cerebral vasospasm is an unelucidated complication of subarachnoid hemorrhage. Various treatments exist against cerebral vasospasms however, consensus on the…”
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Fenestration of the superior cerebellar artery diagnosed by magnetic resonance angiography by Sonoda, Yuki, Uchino, Akira, Kohyama, Shinya, Baba, Yasutaka

“…We herein report a case of fenestration of the superior cerebellar artery (SCA), which was incidentally diagnosed by magnetic resonance (MR) angiography. A…”
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Long segment dolichoectasia of the right internal carotid artery diagnosed by CT angiography by Uchino, Akira, Kohyama, Shinya

“…Dolichoectasia of the cerebral artery, a rare disorder of arterial dilatation, elongation, and tortuosity, most frequently involves the vertebrobasilar system…”
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A rare brainstem hemorrhage due to incomplete transvenous embolization of the cavernous sinus dural arteriovenous fistula: A case report by Mochizuki, Yoshiki, Iihoshi, Satoshi, Tsukagoshi, Eisuke, Kasakura, Shigen, Kohyama, Shinya, Kurita, Hiroki

“…Endovascular embolization is generally thought to be safe and effective for the cavernous sinus dural arteriovenous fistula (CS DAVF); however, some…”
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A case of subdural hemorrhage due to ruptured cerebral aneurysm presenting with atypical imaging features by Tsukagoshi, Eisuke, Sato, Hiroki, Kohyama, Shinya

“…Acute subdural hemorrhage caused by ruptured cerebral aneurysms is rare. Herein, we report an atypical case of subdural hemorrhage caused by ruptured anterior…”
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Optimal first coil selection to avoid aneurysmal recanalization in endovascular intracranial aneurysmal coiling by Neki, Hiroaki, Kohyama, Shinya, Otsuka, Toshihiro, Yonezawa, Azusa, Ishihara, Shoichiro, Yamane, Fumitaka

“…Aneurysmal recanalization is a problem with endovascular coiling and one of its risk factors is the low volume embolization ratio (VER). The first coil VER…”
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Risk Factors and Prevention of Guiding Catheter-induced Vasospasm in Neuroendovascular Treatment by ISHIHARA, Hideaki, ISHIHARA, Shoichiro, NIIMI, Jun, NEKI, Hiroaki, KAKEHI, Yoshiaki, UEMIYA, Nahoko, KOHYAMA, Shinya, YAMANE, Fumitaka, KATO, Hiroshi

“…Mechanically-induced vasospasm often occurs during guiding catheter insertion, occasionally preventing catheter advancement to the desired location. Delicate…”
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Strategy to Achieve Faster Recanalization for Acute Ischemic Stroke in a University Hospital with Many Constraints by Mizuhashi, Satomi, Yonezawa, Azusa, Kohyama, Shinya

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