Novel Rotational Speed Modulation System Used With Venoarterial Extracorporeal Membrane Oxygenation Noritsugu Naito, MD, PhD, Takashi Nishimura, MD,

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Novel Rotational Speed Modulation System Used With Venoarterial Extracorporeal Membrane Oxygenation Noritsugu Naito, MD, PhD, Takashi Nishimura, MD, PhD, Kei Iizuka, MD, Yutaka Fujii, PhD, Yoshiaki Takewa, MD, PhD, Akihide Umeki, MD, PhD, Masahiko Ando, MD, PhD, Minoru Ono, MD, PhD, Eisuke Tatsumi, MD, PhD The Annals of Thoracic Surgery Volume 104, Issue 5, Pages 1488-1495 (November 2017) DOI: 10.1016/j.athoracsur.2017.04.045 Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Driving modes of the rotational speed modulation system. The Annals of Thoracic Surgery 2017 104, 1488-1495DOI: (10.1016/j.athoracsur.2017.04.045) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Schematic image of the extracorporeal membrane oxygenation ECMO circuit. (LMT = left main trunk coronary artery; lt. = left.) The Annals of Thoracic Surgery 2017 104, 1488-1495DOI: (10.1016/j.athoracsur.2017.04.045) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Sample waveforms at each driving mode. (AoP = aortic pressure; CoF = coronary arterial flow; ECG = electrocardiogram; IABP = intraaortic balloon pump; LVP = left ventricular pressure; PAP = pulmonary artery pressure; RF = renal arterial blood flow; RS = rotational speed.) The Annals of Thoracic Surgery 2017 104, 1488-1495DOI: (10.1016/j.athoracsur.2017.04.045) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions

Fig 4 Pressure-volume loops of the left ventricle showing that left ventricular afterload and work load are lower in the counterpulse mode. (IABP = intraaortic balloon pump.) The Annals of Thoracic Surgery 2017 104, 1488-1495DOI: (10.1016/j.athoracsur.2017.04.045) Copyright © 2017 The Society of Thoracic Surgeons Terms and Conditions