文献一覧: Hiro Yamasaki (著者)

15 0 0 0 OA JCS/JHRS 2019 Guideline on Non-Pharmacotherapy of Cardiac Arrhythmias

著者: Akihiko Nogami Takashi Kurita Haruhiko Abe Kenji Ando Toshiyuki Ishikawa Katsuhiko Imai Akihiko Usui Kaoru Okishige Kengo Kusano Koichiro Kumagai Masahiko Goya Yoshinori Kobayashi Akihiko Shimizu Wataru Shimizu Morio Shoda Naokata Sumitomo Yoshihiro Seo Atsushi Takahashi Hiroshi Tada Shigeto Naito Yuji Nakazato Takashi Nishimura Takashi Nitta Shinichi Niwano Nobuhisa Hagiwara Yuji Murakawa Teiichi Yamane Takeshi Aiba Koichi Inoue Yuki Iwasaki Yasuya Inden Kikuya Uno Michio Ogano Masaomi Kimura Shun-ichiro Sakamoto Shingo Sasaki Kazuhiro Satomi Tsuyoshi Shiga Tsugutoshi Suzuki Yukio Sekiguchi Kyoko Soejima Masahiko Takagi Masaomi Chinushi Nobuhiro Nishi Takashi Noda Hitoshi Hachiya Masataka Mitsuno Takeshi Mitsuhashi Yasushi Miyauchi Aya Miyazaki Tomoshige Morimoto Hiro Yamasaki Yoshifusa Aizawa Tohru Ohe Takeshi Kimura Kazuo Tanemoto Hiroyuki Tsutsui Hideo Mitamura on behalf of the JCS/JHRS Joint Working Group
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: pp.CJ-20-0637, (Released:2021-06-01)
参考文献数: 1350
被引用文献数: 75

2021-06-02 14:23:33
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12 0 0 0 OA Efficacy of Low-Dose Isoproterenol Infusion for the Exclusion of a Left Atrial Appendage Thrombus in Patients With Dense Spontaneous Echo Contrast Caused by Atrial Fibrillation

著者: Tomoko Machino-Ohtsuka Kentaro Minami Hiro Yamasaki Tomofumi Nakatsukasa Naoto Kawamatsu Kimi Sato Masayoshi Yamamoto Kazushi Maruo Tomoko Ishizu Yasushi Kawakami Masaki Ieda
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: pp.CJ-23-0271, (Released:2023-06-30)
参考文献数: 26

Background: In patients with atrial fibrillation (AF) and severe blood stasis in the left atrial appendage (LAA), dense spontaneous echo contrast (SEC) disturbs the distinct visualization of the LAA interior, thus making thrombus diagnosis inconclusive. We aimed to prospectively assess the efficacy and safety of a protocol for a low-dose isoproterenol (ISP) infusion to reduce SEC to exclude an LAA thrombus.Methods and Results: We enrolled 17 patients with AF and dense SEC (Grade 4 or sludge). ISP was infused with gradually increasing doses of 0.01, 0.02, and 0.03 μg/kg/min at 3-min intervals. After increasing the dose to 0.03 μg/kg/min for 3 min, or when the LAA interior was visible, the infusion was terminated. We reassessed the SEC grade, presence of an LAA thrombus, LAA function, and left ventricular ejection fraction (LVEF) within 1 min of ISP termination. Compared with baseline, ISP significantly increased LAA flow velocity, the LAA emptying fraction, LAA wall velocities, and LVEF (all P<0.01). ISP administration significantly reduced the SEC grade (median) from 4 to 1 (P<0.001). The SEC grade decreased to ≤2 in 15 (88%) patients, and the LAA thrombus was excluded. There were no adverse events.Conclusions: Low-dose ISP infusion may be effective and safe to reduce SEC and exclude an LAA thrombus by improving LAA function and LVEF.

2023-11-24 22:09:15
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10 0 0 0 OA JCS/JHRS 2021 Guideline Focused Update on Non-Pharmacotherapy of Cardiac Arrhythmias

著者: Akihiko Nogami Takashi Kurita Kengo Kusano Masahiko Goya Morio Shoda Hiroshi Tada Shigeto Naito Teiichi Yamane Masaomi Kimura Tsuyoshi Shiga Kyoko Soejima Takashi Noda Hiro Yamasaki Yoshifusa Aizawa Tohru Ohe Takeshi Kimura Shun Kohsaka Hideo Mitamura on behalf of the Japanese Circulation Society / the Japanese Heart Rhythm Society Joint Working Group
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: pp.CJ-21-0162, (Released:2022-01-06)
参考文献数: 183
被引用文献数: 21

2022-01-17 12:08:58
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3 0 0 0 OA Efficacy and Safety of Left Atrial Appendage Closure With WATCHMAN in Japanese Nonvalvular Atrial Fibrillation Patients ― Final 2-Year Follow-up Outcome Data From the SALUTE Trial ―

著者: Kazutaka Aonuma Hiro Yamasaki Masato Nakamura Takashi Matsumoto Morimasa Takayama Kenji Ando Kenzo Hirao Masahiko Goya Yoshihiro Morino Kentaro Hayashida Kengo Kusano Yutaka Gomi Michael L. Main Takahiro Uchida Shigeru Saito
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: pp.CJ-20-0196, (Released:2020-06-26)
参考文献数: 16
被引用文献数: 15

Background:The SALUTE trial was a prospective, multicenter, single-arm trial to confirm the safety and efficacy of the WATCHMAN left atrial appendage closure (LAAC) device for stroke prevention in patients with nonvalvular atrial fibrillation (NVAF) in Japan.Methods and Results:A total of 54 subjects (including 12 roll-in subjects) with a WATCHMAN implant procedure were followed in 10 investigational centers. Follow-up visits were performed up to 2 years post-implant. The baseline CHA2DS2-VASc score was 3.6±1.6 and the baseline HAS-BLED score was 3.0±1.1. All 42 subjects in the intention to treat (ITT) cohort underwent successful implantation of the LAAC device without any serious complications, achieving the prespecified performance goal. The effective LAAC rate was maintained at 100% from 45 days to 12 months post-implant, achieving the prespecified performance goal. During follow-up, 1 subject died of heart failure, and 3 had ischemic strokes, but there were no cases of hemorrhagic stroke or systemic embolism. All events were adjudicated as unrelated to the WATCHMAN device/procedure by the independent Clinical Events Committee. All 3 ischemic strokes were classified as nondisabling based on no change in the modified Rankin scale score.Conclusions:Final results of the SALUTE trial demonstrated that the WATCHMAN LAAC device is an effective and safe alternative nonpharmacological therapy for stroke risk reduction in Japanese NVAF patients who are not optimal candidates for lifelong anticoagulation. (Trial Registration: clinicaltrials.gov Identifier NCT 03033134)

2020-06-28 15:56:11
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2 0 0 0 OA Percutaneous WATCHMAN Left Atrial Appendage Closure for Japanese Patients With Nonvalvular Atrial Fibrillation at Increased Risk of Thromboembolism ― First Results From the SALUTE Trial ―

著者: Kazutaka Aonuma Hiro Yamasaki Masato Nakamura Tatsushi Ootomo Morimasa Takayama Kenji Ando Kenzo Hirao Yoshihiro Morino Kentaro Hayashida Kengo Kusano Michael L. Main Shigeru Saito
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: vol.82, no.12, pp.2946-2953, 2018-11-24 (Released:2018-11-24)
参考文献数: 22
被引用文献数: 34

Background: The PROTECT AF and PREVAIL trials demonstrated that the WATCHMAN left atrial appendage (LAA) closure device is a reasonable alternative to warfarin therapy for stroke prevention in patients with nonvalvular atrial fibrillation (NVAF) in the USA and Europe. We conducted the SALUTE trial to confirm the safety and efficacy of the LAA closure therapy for patients with NVAF in Japan. Methods and Results: A total of 54 subjects (including 12 Roll-in) with NVAF who had a CHA2DS2-VASc score ≥2 were enrolled. All subjects were successfully implanted with the LAA closure device. No serious adverse events related to the primary procedure-safety endpoint occurred. The 2nd co-primary endpoint was a composite of all stroke, systemic embolism and cardiovascular/unexplained death. One ischemic stroke (1/42) occurred during the 6-month follow-up. The effective LAA closure rate defined as the 3rd co-primary endpoint was 100% (42/42) at both 45-day and 6-month follow-up. Conclusions: The procedural safety and 6-month results from the SALUTE trial demonstrated that the LAA closure device was safe and effective, similar to the results of large-scale randomized clinical trials, and provides a novel perspective of LAA closure for Japanese patients with NVAF in need of an alternative to long-term oral-anticoagulation. (Trial Registration: clinicaltrials.gov Identifier NCT 03033134)

2019-10-04 01:05:16
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