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Importance of Pre-Operative Hemodynamics in the Surgical Planning of Complex Single Ventricle Patients

[+] Author Affiliations
Christopher M. Haggerty, Diane A. de Zélicourt, Kartik S. Sundareswaran, Ajit P. Yoganathan

Georgia Institute of Technology, Atlanta, GA

Mark A. Fogel

The Children’s Hospital of Philadelphia, Philadelphia, PA

Paper No. SBC2010-19071, pp. 239-240; 2 pages
doi:10.1115/SBC2010-19071
From:
  • ASME 2010 Summer Bioengineering Conference
  • ASME 2010 Summer Bioengineering Conference, Parts A and B
  • Naples, Florida, USA, June 16–19, 2010
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-4403-8
  • Copyright © 2010 by ASME

abstract

Unbalanced distribution of hepatic blood flow to the lungs in single ventricle patients can result in the formation of harmful arterial-venous shunts. Careful planning of the hepatic baffle placement to optimize its distribution can help to minimize this risk. The combination of in vivo imaging, a computational fluids solver, and a state-of-the-art virtual surgery interface have successfully been demonstrated to assist in this planning step. In the present study, we analyze the effect of the patient-derived flow boundary conditions on the optimal solutions obtained from the simulations for a particular set of complex cases with interrupted inferior vena cava. By considering two patients with similar anatomical configurations but drastically different hemodynamics, we see that differences in the percentage of cardiac output carried by each of the inflow vessels can drastically alter the optimal surgical approach.

Copyright © 2010 by ASME
Topics: Surgery , Hemodynamics

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