Shigeru Tsumabuki
5 Papers
34 Citations
Shigeru Tsumabuki is an academic researcher. The author has contributed to research in topics: Heart rate & QT interval. The author has an hindex of 3, co-authored 5 publications.
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Papers
Suppression of ventricular premature contractions possibly related to triggered activity by oral diltiazem and atenolol.
Morio Ito,Shigeru Tsumabuki,Yasuhiro Maeda,Makoto Arita,Tetsunori Saikawa,Sukenobu Ito,Takehiko Fujino,Teruo Fukumoto,Kensuke Yamada,Yutaka Kikuchi +9 more
TL;DR: VPCs which increase at higher heart rates may be related to triggered activity, and an evaluation of V PC frequency as a function of heart rate predicts the response of VPCs to diltiazem and atenolol, and probably to other calcium antagonists and beta blockers.
18
•Journal Article
Torsades de pointes associated with acquired long QT syndrome: observation of 7 cases.
Naohiko Takahashi,Ito M,Toshio Inoue,Kousei Koumatsu,Yasushi Takeshita,Shigeru Tsumabuki,Tamura M,Inoue K,Toshihiro Maeda,Tetsunori Saikawa +9 more
TL;DR: Direct current cardioversion was transiently effective for treating torsades de pointes, and intravenous lidocaine, atropine and verapamil were effective in some cases.
9
Day-to-day variation of the frequency of ventricular premature contractions depends on variation of heart rates.
TL;DR: Variability in the VPC frequency per 24 hours between two 24-hour recording periods was significantly greater in the P than in the NP group, while the variability in the mean daily HR was similar between the 2 groups.
8
New analysis of the actions of antiarrhythmic drugs based on the heart rate dependency of ventricular premature contractions.
Tetsunori Saikawa,Mikiko Nakagawa,Naohiko Takahashi,Shuji Ishida,Takao Fujino,Morio Ito,Nobuo Shimoyama,Masahide Hara,Hidetoshi Yonemochi,Toshihiro Maeda,Ryosaburo Takaki,Makoto Arita,Shigeru Tsumabuki +12 more
TL;DR: Tetsunori Saikawa, 1 Mik iko Nakagawa, l Naohiko Takahashi, 2 Shuj i Ishida, 2 Takao Fujino, 2 Morio Ito, 2 Nobuo Shimoyama, ~ Masahide Hara, ~ Hidetoshi Yonemochi, 1 Toshihiro Maeda, 1 Ryosaburo Takak
Mexiletine and Disopyramide Suppress Ventricular Premature Contractions(VPC) Irrespective of the Relationship between the VPC and the Underlying Heart Rate.
Tetsunori Saikawa,Mikiko Nakagawa,Naohiko Takahashi,Shuji Ishida,Takao Fujino,Morio Ito,Nobuo Shimoyama,Masahide Hara,Hidetoshi Yonemochi,Toshihiro Maeda,Ryosaburo Takaki,Makoto Arita,Shigeru Tsumabuki +12 more
TL;DR: The mode of action of class I antiarrhythmics on the VPCs differs from that of class II or IV antiarrHythmics, as viewed from the V PC-HR relationship, and that the difference probably comes from the different arrhythmogenesis for positive and nonpositive types of VPC's.