Publications by authors named "Akihide Umeki"

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Feasibility of an animal model for long-term mechanical circulatory support with Impella 5.5 implanted through carotid artery access in sheep.
Shusuke Imaoka, Tomohiro Nishinaka, Toshihide Mizuno, Akihide Umeki, Takashi Murakami

J Artif Organs· December 2024

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Hemodynamic Evaluation of Asynchronous Speed Modulation of a Continuous-Flow Left Ventricular Assist Device in an Acute-Myocardial Injury Sheep Model.
Shun Tanaka, Tomohiro Nishinaka, Akihide Umeki, Takashi Murakami, Shusuke Imaoka

Ann Biomed Eng· February 2024

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Feasibility study of an artificial placenta system consisting of a loop circuit configuration extracorporeal membrane oxygenation with a bridge circuit in the form of the umbilical arterial-venous connection.
Ayako Inatomi, Tomohiro Nishinaka, Akihide Umeki, Tomonori Tsukiya, Nobumasa Katagiri

J Artif Organs· December 2023

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Coronary microembolization sheep model by adjusting the number of microspheres based on coronary blood flow.
Shun Tanaka, Tomohiro Nishinaka, Akihide Umeki, Masahiko Fujii, Shusuke Imaoka

Artif Organs· January 2023

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Analysis of systemic vascular resistance after cardiac surgery: a retrospective cohort study.
Akihide Umeki, Tetsufumi Yamamoto

J Thorac Dis· November 2022

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Quantification of interventricular dyssynchrony during continuous-flow left ventricular assist device support.
Junichi Shimamura, Takashi Nishimura, Toshihide Mizuno, Yoshiaki Takewa, Tomonori Tsukiya, Akihide Umeki

J Artif Organs· December 2019

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Interventricular dyssynchrony during continuous-flow left ventricular assist device support: observation using the conductance method.
Junichi Shimamura, Takashi Nishimura, Toshihide Mizuno, Yoshiaki Takewa, Tomonori Tsukiya, Akihide Umeki

J Artif Organs· December 2019

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[Ruptured Coronary Artery Aneurysm Associated with Coronary Artery Fistula;Report of a Case].
Daisuke Arima, Akihide Umeki, Tetsufumi Yamamoto

Kyobu Geka· December 2018

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Acquired von Willebrand Syndrome due to Aortic Valve Stenosis in a Case with Antiphospholipid Antibody.
Hiroaki Tanaka, Yurie Nagai, Chihiro Kuwabara, Ryo Shimizu, Akihide Umeki

Intern Med· June 2018

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Rotational speed modulation used with continuous-flow left ventricular assist device provides good pulsatility.
Noritsugu Naito, Takashi Nishimura, Kei Iizuka, Yoshiaki Takewa, Akihide Umeki

Interact Cardiovasc Thorac Surg· January 2018

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Novel Rotational Speed Modulation System Used With Venoarterial Extracorporeal Membrane Oxygenation.
Noritsugu Naito, Takashi Nishimura, Kei Iizuka, Yutaka Fujii, Yoshiaki Takewa, Akihide Umeki

Ann Thorac Surg· November 2017

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Changing pulsatility by delaying the rotational speed phasing of a rotary left ventricular assist device.
Kazuma Date, Takashi Nishimura, Mamoru Arakawa, Yoshiaki Takewa, Satoru Kishimoto, Akihide Umeki

J Artif Organs· March 2017

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Shifting the pulsatility by increasing the change in rotational speed for a rotary LVAD using a native heart load control system.
Kazuma Date, Takashi Nishimura, Yoshiaki Takewa, Satoru Kishimoto, Mamoru Arakawa, Akihide Umeki

J Artif Organs· December 2016

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What Is the Optimal Setting for a Continuous-Flow Left Ventricular Assist Device in Severe Mitral Regurgitation?
Noritsugu Naito, Takashi Nishimura, Yoshiaki Takewa, Satoru Kishimoto, Kazuma Date, Akihide Umeki

Artif Organs· November 2016

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Influence of a Rotational Speed Modulation System Used With an Implantable Continuous-Flow Left Ventricular Assist Device on von Willebrand Factor Dynamics.
Noritsugu Naito, Toshihide Mizuno, Takashi Nishimura, Satoru Kishimoto, Yoshiaki Takewa, Akihide Umeki

Artif Organs· September 2016

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Pulsatile support using a rotary left ventricular assist device with an electrocardiography-synchronized rotational speed control mode for tracking heart rate variability.
Mamoru Arakawa, Takashi Nishimura, Yoshiaki Takewa, Akihide Umeki, Masahiko Ando

J Artif Organs· June 2016

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Long-term outcome after the original and simple modified technique of valve-sparing aortic root reimplantation in Marfan-based population, David V University of Tokyo modification.
Masahiko Ando, Haruo Yamauchi, Tetsuro Morota, Tsuyoshi Taketani, Shogo Shimada, Akihide Umeki

J Cardiol· January 2016

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Alternation of left ventricular load by a continuous-flow left ventricular assist device with a native heart load control system in a chronic heart failure model.
Mamoru Arakawa, Takashi Nishimura, Yoshiaki Takewa, Akihide Umeki, Masahiko Ando

J Thorac Cardiovasc Surg· August 2014

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Novel control system to prevent right ventricular failure induced by rotary blood pump.
Mamoru Arakawa, Takashi Nishimura, Yoshiaki Takewa, Akihide Umeki, Masahiko Ando

J Artif Organs· June 2014

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Change of coronary flow by continuous-flow left ventricular assist device with cardiac beat synchronizing system (native heart load control system) in acute ischemic heart failure model.
Akihide Umeki, Takashi Nishimura, Masahiko Ando, Yoshiaki Takewa, Kenji Yamazaki

Circ J· September 2013

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Change in myocardial oxygen consumption employing continuous-flow LVAD with cardiac beat synchronizing system, in acute ischemic heart failure models.
Akihide Umeki, Takashi Nishimura, Yoshiaki Takewa, Masahiko Ando, Mamoru Arakawa

J Artif Organs· June 2013

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Development of a novel drive mode to prevent aortic insufficiency during continuous-flow LVAD support by synchronizing rotational speed with heartbeat.
Yuichiro Kishimoto, Yoshiaki Takewa, Mamoru Arakawa, Akihide Umeki, Masahiko Ando

J Artif Organs· June 2013

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Alteration of LV end-diastolic volume by controlling the power of the continuous-flow LVAD, so it is synchronized with cardiac beat: development of a native heart load control system (NHLCS).
Akihide Umeki, Takashi Nishimura, Masahiko Ando, Yoshiaki Takewa, Kenji Yamazaki

J Artif Organs· June 2012

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Left ventricular assist device support with a centrifugal pump for 2 months in a 5-kg child.
Takafumi Inoue, Takashi Nishimura, Arata Murakami, Keiichi Itatani, Tetsuhiro Takaoka, Akihide Umeki

J Artif Organs· September 2011

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