Power loss and right ventricular efficiency in patients after tetralogy of Fallot repair with pulmonary insufficiency: Clinical implications Mark A.

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Presentation transcript:

Power loss and right ventricular efficiency in patients after tetralogy of Fallot repair with pulmonary insufficiency: Clinical implications Mark A. Fogel, MD, FACC, Kartik S. Sundareswaran, PhD, Diane de Zelicourt, MS, Lakshmi P. Dasi, PhD, Tom Pawlowski, BS, Jack Rome, MD, FACC, Ajit P. Yoganathan, PhD The Journal of Thoracic and Cardiovascular Surgery Volume 143, Issue 6, Pages 1279-1285 (June 2012) DOI: 10.1016/j.jtcvs.2011.10.066 Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 A, Typical main pulmonary artery (MPA) flow waveform in patients with tetralogy of Fallot (TOF) with pulmonary regurgitation (PR) (top curve). The waveform is divided into forward and backward phases to evaluate the total right ventricular (RV) power generated and power loss (PL) due to pulmonary regurgitation (PR). B, The images represent how the RV function and flow were obtained. Left, A 4-chamber view and short-axis views (rectangle on 4-chamber view) at end diastole and end systole (from left to right). C, Velocity map plane was obtained in the MPA (top) and an example of a velocity map (bottom). The Journal of Thoracic and Cardiovascular Surgery 2012 143, 1279-1285DOI: (10.1016/j.jtcvs.2011.10.066) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Relationship of right ventricular (RV) power loss (PL) with right ventricular end-diastolic volume index (RVEDVI) and right ventricular end-systolic volume index (RVESVI). The Journal of Thoracic and Cardiovascular Surgery 2012 143, 1279-1285DOI: (10.1016/j.jtcvs.2011.10.066) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 Relationship between total right ventricular (RV) power efficiency and right ventricular end-diastolic and end-systolic volume indexes (RVEDVI and RVESVI, respectively). The Journal of Thoracic and Cardiovascular Surgery 2012 143, 1279-1285DOI: (10.1016/j.jtcvs.2011.10.066) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 4 Relationship between normalized right ventricular (RV) power output and normalized RV end-diastolic and end-systolic volume indexes (RVEDVNormalized and RVESVNormalized, respectively). Two sets of points (108.8 and 94.1 and 108.3 and 94.0) are right on top of each other and seem to appear as a single point. The Journal of Thoracic and Cardiovascular Surgery 2012 143, 1279-1285DOI: (10.1016/j.jtcvs.2011.10.066) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions