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Successful Treatment of Tachycardia-Induced Cardiomyopathy With LVAD in a 12-Year- Old Boy  Hideki Tatewaki, MD, Munetaka Masuda, MD, Takahiro Nishida,

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Presentation on theme: "Successful Treatment of Tachycardia-Induced Cardiomyopathy With LVAD in a 12-Year- Old Boy  Hideki Tatewaki, MD, Munetaka Masuda, MD, Takahiro Nishida,"— Presentation transcript:

1 Successful Treatment of Tachycardia-Induced Cardiomyopathy With LVAD in a 12-Year- Old Boy 
Hideki Tatewaki, MD, Munetaka Masuda, MD, Takahiro Nishida, MD, Yoshikazu Kaji, MD, Hiroya Ushinohama, MD, Shigeki Morita, MD, Hisataka Yasui, MD  The Annals of Thoracic Surgery  Volume 80, Issue 2, Pages e5-e7 (August 2005) DOI: /j.athoracsur Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

2 Fig 1 Changes in dimension (mm) and ejection fraction (EF) (%) of the left ventricle during circulatory support by ABIOMED BVS 5000 (Abiomed, Inc, Danvers, MA). ■ = EF; ♦ = LVDd; ▴ = LVDs. (LVAD = left ventricular assist device; LVDd = left ventricle end-diastolic dimension, LVDs = left ventricle end-systolic dimension.) The Annals of Thoracic Surgery  , e5-e7DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

3 Fig 2 Electrophysiological study after weaning off the left ventricular assist device (LVAD) revealed early excitation at the distal site of coronary sinus, which represents the lateral wall of the left atrium. After infusion of flecainide, left atrial rhythm returned to sinus rhythm. Non-filled, white arrows = p wave on electrocardiogram; solid, black arrows = the fastest electrical excitation site in the atrium; ovals = p wave on electrocardiogram. (aVL = the augmented unipolar lead of left arm of electrocardiogram; CS = coronary sinus; HRA = high right atrium; LA = left atrium; RVa = apex of the right ventricle; V1 = the bipolar lead I of electrocardiogram.) The Annals of Thoracic Surgery  , e5-e7DOI: ( /j.athoracsur ) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

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