K
Kenzo Hirao
Researcher at Tokyo Medical and Dental University
Publications - 343
Citations - 4937
Kenzo Hirao is an academic researcher from Tokyo Medical and Dental University. The author has contributed to research in topics: Catheter ablation & Atrial fibrillation. The author has an hindex of 32, co-authored 334 publications receiving 4022 citations.
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Journal ArticleDOI
Distribution of the origin of adenosine triphosphatesensitive atrial tachycardias with the earliest activation recorded in the His bundle catheter: are they limited to the immediate vicinity of the His bundle?
Tomofumi Nakamura,Hitoshi Hachiya,Yasuaki Tanaka,Atsuhiko Yagishita,Koji Sugiyama,Masahito Suzuki,Mihoko Kawabata,Tetsuo Sasano,Kenzo Hirao,Mitsuaki Isobe +9 more
TL;DR: In this article, the authors assess the spatial distribution of the origins of adenosine triphosphate (ATP) sensitive focal atrial tachycardias (AT) that have their earliest activation recorded in the His bundle (HB) catheter.
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Does second-generation cryoballoon ablation using the current single short freeze strategy produce pulmonary vein stenosis?
Shinsuke Miyazaki,Takatsugu Kajiyama,Masahiro Hada,Hiroaki Nakamura,Hitoshi Hachiya,Hiroshi Tada,Kenzo Hirao,Yoshito Iesaka +7 more
TL;DR: In CB2-PVI with the current single short freeze strategy, the risk of PV stenosis is extremely low, and routine follow-up imaging for evaluation seems not to be necessary.
Journal ArticleDOI
Prognostic significance of nonsustained ventricular tachycardia in patients receiving cardiac resynchronization therapy for primary prevention: Analysis of the Japan cardiac device treatment registry database.
Hisashi Yokoshiki,Akihiko Shimizu,Takeshi Mitsuhashi,Hiroshi Furushima,Yukio Sekiguchi,Tetsuyuki Manaka,Nobuhiro Nishii,Takeshi Ueyama,Norishige Morita,Hideo Okamura,Takashi Nitta,Kenzo Hirao,Ken Okumura +12 more
TL;DR: Whether nonsustained ventricular tachycardia (NSVT) is a marker of increased risk of sustained ventricularTachyarrhythmias (VTAs) remains to be established in patients receiving cardiac resynchronization therapy with a defibrillator (CRT‐D) for primary prevention.
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Survival and Heart Failure Hospitalization in Patients With Cardiac Resynchronization Therapy With or Without a Defibrillator for Primary Prevention in Japan - Analysis of the Japan Cardiac Device Treatment Registry Database.
Hisashi Yokoshiki,Akihiko Shimizu,Takeshi Mitsuhashi,Hiroshi Furushima,Yukio Sekiguchi,Tetsuyuki Manaka,Nobuhiro Nishii,Takeshi Ueyama,Norishige Morita,Hideo Okamura,Takashi Nitta,Kenzo Hirao,Ken Okumura +12 more
TL;DR: In patients without sustained ventricular tachyarrhythmias enrolled in the JCDTR, there was no significant difference in mortality between the CRT-D andCRT-P groups, despite a lower trend in CRT -D recipients.
Journal ArticleDOI
Impact of Elective Percutaneous Coronary Intervention on Global Absolute Coronary Flow and Flow Reserve Evaluated by Phase-Contrast Cine-Magnetic Resonance Imaging in Relation to Regional Invasive Physiological Indices
Yoshihisa Kanaji,Taishi Yonetsu,Rikuta Hamaya,Tadashi Murai,Eisuke Usui,Masahiro Hoshino,Masao Yamaguchi,Masahiro Hada,Yoshinori Kanno,Tadashi Fukuda,Hiroaki Ohya,Youhei Sumino,Akinori Sugano,Tetsumin Lee,Kenzo Hirao,Tsunekazu Kakuta +15 more
TL;DR: Fractional flow reserve–guided PCI in patients with single de novo lesions was associated with increased absolute hyperemic CSF, although 24% of patients showed decreased hyperemi CSF despite successful and uncomplicated PCI, which may provide a novel insight into the dynamic behavior of the coronary hemodynamics and microvascular function after PCI.