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Optimized temporary biventricular pacing acutely improves intraoperative cardiac output after weaning from cardiopulmonary bypass: A substudy of a randomized.

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Presentation on theme: "Optimized temporary biventricular pacing acutely improves intraoperative cardiac output after weaning from cardiopulmonary bypass: A substudy of a randomized."— Presentation transcript:

1 Optimized temporary biventricular pacing acutely improves intraoperative cardiac output after weaning from cardiopulmonary bypass: A substudy of a randomized clinical trial  Daniel Y. Wang, MD, Marc E. Richmond, MD, T. Alexander Quinn, PhD, Ajay J. Mirani, MD, Alexander Rusanov, MD, Vinay Yalamanchi, BA, Alan D. Weinberg, MS, Santos E. Cabreriza, MBA, Henry M. Spotnitz, MD  The Journal of Thoracic and Cardiovascular Surgery  Volume 141, Issue 4, Pages e1 (April 2011) DOI: /j.jtcvs Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

2 Figure 1 Intraoperative recordings from a representative patient displaying changes in electrocardiograms (EKG), arterial pressure (AP), and aortic (Ao) flow velocity during biventricular pacing optimization. VVD, Interventricular delay. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

3 Figure 2 Cardiac output versus atrioventricular delay (AVD) from a representative patient during AVD optimization. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

4 Figure 3 Cardiac output versus interventricular delay (VVD) from a representative patient during VVD optimization. LV, Left ventricle; RV, right ventricle. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

5 Figure 4 Biventricular pacing optimization profiles for atrioventricular delay (AVD) and interventricular delay (VVD). Mean cardiac outputs are normalized to a scale of 100, with the worst parameter as the reference group. Error bars depict 1 standard error of the mean. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

6 Figure 5 Comparison of cardiac output with optimized biventricular pacing (BiVP) versus right atrial pacing or sinus rhythm. Error bars depict 1 standard error of the mean. HR, Heart rate. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

7 Distribution of optimal and worst atrioventricular delay (AVD) settings determined during AVD optimization. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

8 Distribution of optimal and worst interventricular delay (VVD) settings determined during VVD optimization. LV, Left ventricle; RV, right ventricle. The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs ) Copyright © 2011 The American Association for Thoracic Surgery Terms and Conditions

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