Camden Hebson^1,2, Wendy Book¹, Robert W. Elder³, Ryan Ford⁴, Maan Jokhadar¹, Kirk Kanter⁵, Brian Kogon⁵, Adrienne H. Kovacs⁶, Rebecca D. Levit¹, Michael Lloyd¹, Kevin Maher², Preeti Reshamwala⁴, Fred Rodriguez III^1,2, Rene Romero⁷, Thor Tejada¹, Anne Marie Valente⁸, Gruschen Veldtman⁹, Michael McConnell^1,2

Congenital Heart Disease, Vol.12, No.1, pp. 6-16, 2017

Abstract “Frontiers in Fontan Failure” was the title of a 2015 conference sponsored by Children’s Healthcare of Atlanta and Emory University School of Medicine. In what is hoped to be the first of many such gatherings, speakers and attendees gathered to discuss the problem of long-term clinical deterioration in these patients. Specific focuses included properly defining the problem and then discussing different treatment strategies, both medical and surgical. The health of the liver after Fontan palliation was a particular point of emphasis, as were quality of life and future directions. More >

Jonathan Komisar¹, Shubhika Srivastava², Miwa Geiger², John Doucette³, Helen Ko², Jay Shenoy², Rajesh Shenoy²

Congenital Heart Disease, Vol.12, No.1, pp. 67-73, 2017

Abstract Background: Antenatal diagnosis of congenital heart defects (CHD) can impact outcomes in neonates with severe CHD. Obstetric screening guidelines and the indications for fetal echocardiography (FE) have evolved in an attempt to improve the early prenatal detection of CHD. Analyzing yield for specific indications will help clinicians better stratify at-risk pregnancies.
Methods: Retrospective cohort study of all FE performed between 2000 and 2010 at a single tertiary care academic medical center in New York City. A total of 9878 FE met inclusion criteria for our study. In cases of multiple gestations (MG), each fetus was counted as a separate study.
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Lianne M. Geerdink^1,2, Gideon J. du Marchie Sarvaas³, Irene M. Kuipers⁴, Willem A. Helbing⁵, Tammo Delhaas⁶, Henriette ter Heide⁷, Lieke Rozendaal⁸, Chris L. de Korte⁹, Sandeep K. Singh¹⁰, Tjark Ebels¹¹, Mark G. Hazekamp¹², Felix Haas¹³, Ad J. J. C. Bogers¹⁴, Livia Kapusta^1,15

Congenital Heart Disease, Vol.12, No.1, pp. 32-39, 2017

Abstract Objective: Surgical outcomes of pediatric patients with Ebstein’s anomaly are often described as part of all-age-inclusive series. Our objective is to focus on patients treated surgically in childhood (0-18 y). We study the intended treatment (biventricular or 1.5 ventricle repair or univentricular palliation), freedom from unplanned reoperation and survival of this specific age group, in a nationwide study.
Design: Records of all Ebstein’s anomaly patients born between 1980 and 2013 were reviewed. Demographic variables, intraoperative procedures and postoperative outcomes were analyzed.
Results: Sixty-three patients underwent 109 operations. Median follow-up after diagnosis was 121 months (range 0-216 months). Twenty-nine (46%) patients… More >

Sara Salehyar^{1, †}, Nickolas Forsch^1,†,*, Kathleen Gilbert^2,3, Alistair A. Young^3,4, James C. Perry⁵, Sanjeet Hegde⁵, Jeffrey H. Omens^1,6, Andrew D. McCulloch^1,6

Molecular & Cellular Biomechanics, Vol.16, No.3, pp. 179-183, 2019, DOI:10.32604/mcb.2019.07384

Abstract Tetralogy of Fallot (TOF) is the most common form of cyanotic congenital heart disease. Infants diagnosed with TOF require surgical interventions to survive into adulthood. However, as a result of postoperative structural malformations and long-term ventricular remodeling, further interventions are often required later in life. To help identify those at risk of disease progression, serial cardiac magnetic resonance (CMR) imaging is used to monitor these patients. However, most of the detailed information on cardiac shape and biomechanics contained in these large four-dimensional (4D) data sets goes unused in clinical practice for lack of efficient and comprehensive quantitative analysis tools. While… More >

Dalin Tang^*, Chun Yang^†, Tal Geva^‡,§, Pedro J. del Nido^¶

Molecular & Cellular Biomechanics, Vol.4, No.3, pp. 159-176, 2007, DOI:10.3970/mcb.2007.004.159

Abstract A single-layer isotropic patient-specific right/left ventricle and patch (RV/LV/Patch) combination model with fluid-structure interactions (FSI) was introduced in our previous papers to evaluate and optimize human pulmonary valve replacement/insertion (PVR) surgical procedure and patch design. In this paper, an active anisotropic model with two-layer structure for ventricle wall and tissue fiber orientation was introduced to improve previous isotropic model for more accurate assessment of RV function and potential application in PVR surgery and patch design. A material-stiffening approach was used to model active heart contraction. The computational models were used to conduct ``virtual (computational)'' surgeries and test the hypothesis that… More >

Dalin Tang¹, Chun Yang^1,2, Tal Geva^3,4, Glenn Gaudette⁴, and Pedro J. del Nido⁵

CMES-Computer Modeling in Engineering & Sciences, Vol.56, No.2, pp. 113-130, 2010, DOI:10.3970/cmes.2010.056.113

Abstract Right and left ventricle (RV/LV) combination models with three different patch materials (Dacron scaffold, treated pericardium, and contracting myocardium), two-layer construction, fiber orientation, and active anisotropic material properties were introduced to evaluate the effects of patch materials on RV function. A material-stiffening approach was used to model active heart contraction. Cardiac magnetic resonance (CMR) imaging was performed to acquire patient-specific ventricular geometries and cardiac motion from a patient with severe RV dilatation due to pulmonary regurgitation needing RV remodeling and pulmonary valve replacement operation. Computational models were constructed and solved to obtain RV stroke volume, ejection fraction, patch area variations,… More >