Disruption of the ventricular myocardial force-frequency relationship after cardiac surgery in children: Noninvasive assessment by means of tissue Doppler.

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Presentation transcript:

Disruption of the ventricular myocardial force-frequency relationship after cardiac surgery in children: Noninvasive assessment by means of tissue Doppler imaging Michael M.H. Cheung, Jeffrey F. Smallhorn, Michael Vogel, MD, PhD, Glen Van Arsdell, MD, Andrew N. Redington, MD The Journal of Thoracic and Cardiovascular Surgery Volume 131, Issue 3, Pages 625-631 (March 2006) DOI: 10.1016/j.jtcvs.2005.09.056 Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Pacing-induced changes in isovolumic acceleration (IVA) for patients undergoing surgical repair of atrial septal defect (ASD). Error bars represent standard error of the mean. The Journal of Thoracic and Cardiovascular Surgery 2006 131, 625-631DOI: (10.1016/j.jtcvs.2005.09.056) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Pacing-induced changes in isovolumic acceleration (IVA) for patients undergoing Fontan completion. Error bars represent standard error of the mean. The Journal of Thoracic and Cardiovascular Surgery 2006 131, 625-631DOI: (10.1016/j.jtcvs.2005.09.056) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 Pacing-induced changes in isovolumic acceleration (IVA) for patients undergoing surgical repair of ventricular septal defect (VSD). Error bars represent standard error of the mean. The Journal of Thoracic and Cardiovascular Surgery 2006 131, 625-631DOI: (10.1016/j.jtcvs.2005.09.056) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions

Figure 4 Pacing-induced changes in isovolumic acceleration (IVA) for patients undergoing surgical repair of tetralogy of Fallot. Error bars represent standard error of the mean. The Journal of Thoracic and Cardiovascular Surgery 2006 131, 625-631DOI: (10.1016/j.jtcvs.2005.09.056) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions

Figure 5 Pacing-induced changes in isovolumic acceleration (IVA) for patients with transposition of the great arteries (TGA) undergoing the arterial switch procedure. Error bars represent standard error of the mean. The Journal of Thoracic and Cardiovascular Surgery 2006 131, 625-631DOI: (10.1016/j.jtcvs.2005.09.056) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions

Figure 6 Pacing-induced changes in s velocity for patients with transposition of the great arteries (TGA). Error bars represent standard error of the mean. The Journal of Thoracic and Cardiovascular Surgery 2006 131, 625-631DOI: (10.1016/j.jtcvs.2005.09.056) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions

Figure 7 Comparison of maximal percentage change in isovolumic acceleration (IVA) with duration of cardiopulmonary bypass and aortic crossclamp time. The best-fit line for comparison with aortic crossclamp duration is shown (r = −0.3, P < .05). The Journal of Thoracic and Cardiovascular Surgery 2006 131, 625-631DOI: (10.1016/j.jtcvs.2005.09.056) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions