M
Masaru Yamada
Researcher at Kitasato University
Publications - 49
Citations - 1090
Masaru Yamada is an academic researcher from Kitasato University. The author has contributed to research in topics: Aneurysm & Subarachnoid hemorrhage. The author has an hindex of 14, co-authored 49 publications receiving 929 citations.
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Journal ArticleDOI
Effects of Extracranial–Intracranial Bypass for Patients With Hemorrhagic Moyamoya Disease: Results of the Japan Adult Moyamoya Trial
Susumu Miyamoto,Takashi Yoshimoto,Nobuo Hashimoto,Yasushi Okada,Ichiro Tsuji,Teiji Tominaga,Jyoji Nakagawara,Jun C. Takahashi,Keisuke Yamada,Yasutake Tomata,Tsuguya Fukui,Yasuo Fukuuchi,Takashi Ohmoto,Yasuo Kuwabara,Izumi Nagata,Junichi Ono,Toshio Machida,Ryuji Sakakibara,Kanji Yamane,Shinji Okita,Toru Iwama,Yasuhiko Kaku,Nobuhito Saito,Hidenao Fukuyama,Kiyohiro Houkin,Satoshi Kuroda,Ichiro Yabe,Fumio Moriwaka,Akira Ogawa,Kuniaki Ogasawara,Kenji Yoshida,Kiyotaka Fujii,Masaru Yamada,Kimitoshi Sato,Tsugio Akutsu,Sen Yamagata,Shigekazu Takeuchi,Kentaro Hayashi,Nobutaka Horie,Kazuo Yamada,Toshiaki Osato,Toshiichi Watanabe,Kaori Honjo,Kazuya Sako,Hiroyuki Nakase,Shoichiro Kawaguchi,Fumihiko Nisimura,Junichi Yamao,Hiroaki Naritomi,Tooru Inoue,Hiroshi Abe,Akifumi Suzuki,Tatsuya Ishikawa,Yoshinori Akiyama,Toshihiko Suenaga,Miki Fujimura,Shinji Nagahiro,Masaaki Uno,Kyoko Nishi,Junichiro Satomi,Yoshikazu Okada,Akiji Kawashima,Kohji Yamaguchi,Yukiko Tsutsumi +63 more
TL;DR: Although statistically marginal, Kaplan–Meier analysis revealed the significant difference between surgical and nonsurgical group, suggesting the preventive effect of direct bypass against rebleeding.
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Intracranial vertebral artery dissection with subarachnoid hemorrhage: clinical characteristics and outcomes in conservatively treated patients.
TL;DR: In a series of preselected patients, poor admission neurological grade, rebleeding episode(s), and lesions with a pearl-and-string structure were predictive of poor outcomes, indicating that patients without these characteristics may be good candidates for conservative treatment, especially those who survive the acute phase without rebleeded.
Journal ArticleDOI
Endovascular surgery for very small ruptured intracranial aneurysms. Technical note.
Sachio Suzuki,Akira Kurata,Taketomo Ohmomo,Takao Sagiuchi,Jun Niki,Masaru Yamada,Hidehiro Oka,Kiyotaka Fujii,Shinichi Kan +8 more
TL;DR: Assessment of treatment results in a series of very small ruptured aneurysms at one institution found that Appropriate selection of patients and coils, and use of sophisticated techniques allow a good outcome for patients with very small aneurYSms.
Journal ArticleDOI
Rerupture of cerebral aneurysms during angiography – a retrospective study of 13 patients with subarachnoid hemorrhage
M. Kusumi,Masaru Yamada,Takao Kitahara,Masataka Endo,S. Kan,H. Iida,Takao Sagiuchi,Kiyotaka Fujii +7 more
TL;DR: Cerebral angiography at ultra-early timing (within 3 hr of the insult) carries a high risk of aneurysmal rerupture, even if the procedure is performed under deep anesthesia and normotensive blood pressure.
Journal Article
[Clinical features and outcomes in patients with asymptomatic moyamoya disease--from the results of nation-wide questionnaire survey].
TL;DR: A prospective study of asymptomatic moyamoya disease is necessary to clarify its natural course and appropriate management strategy and to elucidate clinical features and outcomes in patients with asymPTomatic moysamoya Disease.