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Wataru Shimizu
Researcher at Nippon Medical School
Publications - 764
Citations - 27672
Wataru Shimizu is an academic researcher from Nippon Medical School. The author has contributed to research in topics: Medicine & Internal medicine. The author has an hindex of 76, co-authored 671 publications receiving 23910 citations. Previous affiliations of Wataru Shimizu include Mitsubishi Chemical Corporation & Kumamoto University.
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Journal ArticleDOI
Electrophysiologic characteristics andimplications of induced ventricular fibrillationin symptomatic patients with brugada syndrome
Munetake Kanda,Wataru Shimizu,Kiyotaka Matsuo,Noritoshi Nagaya,Atsushi Taguchi,Kazuhiro Suyama,Takashi Kurita,Naohiko Aihara,Shiro Kamakura +8 more
TL;DR: The data suggest that induction of VF by PVS depends on the severity ofdepolarization abnormalities but does not predict the recurrence of cardiac events in symptomatic Brugada syndrome, indicating that both depolarization and repolarization irregularities are important in the development of Vf.
Journal ArticleDOI
Improvement of Repolarization Abnormalities by a K+ Channel Opener in the LQT1 Form of Congenital Long-QT Syndrome
Wataru Shimizu,Takashi Kurita,Kiyotaka Matsuo,K. Suyama,Naohiko Aihara,Shiro Kamakura,Jeffrey A. Towbin,Katsuro Shimomura +7 more
TL;DR: The results suggest that nicorandil, a K+ channel opener, improves repolarization abnormalities in the L QT1 form of congenital long-QT syndrome with KvLQT1 defect.
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Cellular Basis for Trigger and Maintenance of Ventricular Fibrillation in the Brugada Syndrome Model. High-Resolution Optical Mapping Study
Takeshi Aiba,Wataru Shimizu,Ichiro Hidaka,Kazunori Uemura,Takashi Noda,Can Zheng,Atsunori Kamiya,Masashi Inagaki,Masaru Sugimachi,Kenji Sunagawa +9 more
TL;DR: Steep repolarization gradient in the epicardium but not endocardium develops P2R-extrasystoles in the Brugada-ECG condition, which might degenerate into VF by further depolarization andRepolarization abnormalities.
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Diagnostic and prognostic value of a type 1 Brugada electrocardiogram at higher (third or second) V1 to V2 recording in men with Brugada syndrome.
Koji Miyamoto,Miki Yokokawa,Koji Tanaka,Takayuki Nagai,Hideo Okamura,Takashi Noda,Kazuhiro Satomi,Kazuhiro Suyama,Takashi Kurita,Naohiko Aihara,Shiro Kamakura,Wataru Shimizu +11 more
TL;DR: Men with a spontaneous type 1 Brugada ECG showed a prognosis similar to that of men with a type 1 ECG in using standard leads V(1) and V(2).
Journal ArticleDOI
Regional and ethnic differences among patients with heart failure in Asia: the Asian sudden cardiac death in heart failure registry.
Carolyn S.P. Lam,Tiew-Hwa Katherine Teng,Wan Ting Tay,Inder S. Anand,Shu Zhang,Wataru Shimizu,Calambur Narasimhan,Sang Weon Park,Cheuk-Man Yu,Tachapong Ngarmukos,Razali Omar,Eugene B. Reyes,Bambang Budi Siswanto,Chung-Lieh Hung,Lieng H. Ling,Jonathan Yap,Michael R. MacDonald,A. Mark Richards +17 more
TL;DR: These first prospective multi-national data from Asia highlight the significant heterogeneity among Asian patients with stable HF, and the important influence of both ethnicity and regional income level on patient characteristics.