A1. Single Cell Multiomics Reveal Novel Cardiac Subpopulation Critical To Valve Morphogenesis
Alexander F. Merriman, MS¹, Peter Kouretas, MD, PhD², Mauro Costa, PhD¹, Chun J. Ye, PhD², Deepak Srivastava, MD^1
1Gladstone Institutes, San Francisco, CA, ²University of California, San Francisco, San Francisco, CA

A2. Partial Heart Transplantation Delivers Growing Heart Valve Replacements In Piglets
Jennie H. Kwon, MD¹, Lillian Kang, MD², Kristi L. Helke, DVM, PhD¹, David C. Fitzgerald, DHA, MPH, CCP¹, Carolyn Taylor, MD¹, Marc Hassid, MD¹, Neel Prabhu², Anna Hoover², Stephen G. Miller, MD², Deani H. McVadon, MD¹, Morgan A. Hill¹, Nicholas D. Andersen, MD², Minoo N. Kavarana, MD¹, Joseph W. Turek, MD, PhD, MBA², T. Konrad Rajab, MD^1
1Medical University of South Carolina, Charleston, SC, ²Duke University Medical Center, Durham, NC

A3. Exosomal Microrna Mir-21-5p As Potential Molecular Entity For Neuroprotective Effects Of Mesenchymal Stromal Cells During Cardiopulmonary Bypass
Kei Kobayashi, Ankush Bansal, Nemanja Saric, Patrick Hanley, Kazue Hashimoto-Torii, Nobuyuki Ishibashi
Children's National Medical Center, Washington,DC

A4. Local Delivery Of Tacrolimus Via Drug-eluting Sutures For Prevention Of Stenosis At The Vascular Anastomosis Site
Hidenori Hayashi¹, Kunal S. Parikh², Aditya Josyula², Takahiro Inoue¹, Takuma Fukunishi², Huaitao Zhang², Revaz Omiadze², Richard Shi², Youseph Yazdi², Justin Hanes², Laura M. Ensign², Narutoshi Hibino^1
1Section of Cardiac & Thoracic Surgery, Department of Surgery, The University of Chicago Medical Center, Chicago, IL, ²Center for Nanomedicine at JHU, Baltimore, MD

A5. Congenital Heart Surgery Workforce: Where Are We Headed?
Brian E. Kogon, MD
AdventHealth for Children, Orlando, FL

A6. The Textbook Outcome For Norwood Reconstruction
Neel K. Prabhu, BSE, Joseph R. Nellis, MD, MBA, Mary Moya-Mendez, Anna C. Hoover, Cathlyn Medina, James M. Meza, MD, MSc, Nicholas D. Andersen, MD, Joseph W. Turek, MD, PhD, MBA
Duke University Medical Center, Durham, NC

A7. Computational Model To Assist Surgical Decision-Making In Borderline Left Ventricles
Isao Anzai, MD¹, Yurui Chen², Justin Tran, PhD³, Emile Bacha, MD¹, Vijay Vedula, PhD², David Kalfa, MD, PhD^1
1Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, ²Columbia University, New York, NY, ³California State University, Fullerton, Fullerton, CA

A8. Long-term Impact Of Anatomic Subtype In Hypoplastic Left Heart Syndrome After Fontan Completion
Jiyong Moon, MD¹, Timothy Lancaster, MD¹, Vikram Sood, MD¹, Ming-Sing Si, MD², Richard G. Ohye, MD¹, Jennifer C. Romano, MD, MS^1
1University of Michigan Health System, Ann Arbor, MI, ²University of California Los Angeles Medical Center, Los Angeles, CA

A9. Understanding The Cost Of Multidisciplinary Congenital Heart Disease Case Conference
Catherine C. Dawson, MD MSc¹, Scott Wallace, JD MBA¹, Elizabeth Teisberg, PhD¹, Christopher Born, MBA CPA², Andrew Well, MD MPH MSHCT¹, Kathleen Carberry, RN MPH¹, Dudley Byron Holt, MD¹, Erin Gottlieb, MD MHCM¹, Charles D. Fraser, Jr., MD¹, Carlos M. Mery, MD MPH^1
1Dell Medical School at University of Texas at Austin, Austin, TX, ²Dell Children's Medical Center, Austin, TX

A10. Contemporary Relationship between Volume and Mortality After Congenital Cardiac Surgery
Karl F. Welke, MD
Atrium Health Levine Children's Hospital, Charlotte, NC

V1. A Case Of Superior Sinus Venosus Atrial Septal Defect Associated With Ostial Atresia Of The Right Coronary Artery And Coronary-cameral Fistulae
Sujata Subramanian, Karen Wright, Charles D. Fraser, Carlos M. Mery
Dell Children's Medical Center, Austin, TX

V2. How I Teach It - Coronary Revision Following Arterial Switch Operation
Alan O'Donnell, James Tweddell
Cincinnati Children's Hospital Medical Center, Cincinnati, OH

V3. How I Do It: Maintaining Dextrocardia During Orthotopic Heart Transplantation
Lloyd McPherson Felmly, MD, Teimour Nasirov, MD, John Lamberti, MD, Olaf Reinhartz, MD, MD, Michael R. Ma, MD
Stanford University School of Medicine, Palo Alto, CA

V4. Transdiaphragmatic Abdominal Pericardial Extension: "TRAP Door" Facilitates Intrapericardial LVAD Placement
Patrick McConnell, Sergio Carrillo, MD
Nationwide Childrens, Columbus, OH

V5. Biventricular Repair Of Complex Interrupted Aortic Arch And Small Left Ventricular Outflow Tract Following Hybrid First Stage Palliation
Bahaaldin Alsoufi, Brian Holland, Erle Austin, Edward Kim, Deborah Kozik
University of Louisville, Louisville, KY

How I Do It - Single Ventricle Palliation In Hypoplastic Left Heart Syndrome
Alan O'Donnell, James Tweddell
Cincinnati Children's Hospital Medical Center, Cincinnati, OH

Interrupted Right Sided Aortic Arch With Left Hemitruncus And Bilateral Ducts
Ankavipar Saprungruang, MD, Safwat Aly, MD, Shi-Joon Yoo, MD, David J. Barron, MD, Conall Thomas Morgan, MD
The Hospital for Sick Children, Toronto, ON, Canada

Bicuspidization Of A Tricuspid Truncal Valve
Stephanie N. Nguyen, MD, Ismail A. Bouhout, MD, PhD, David M. Kalfa, MD, PhD
New York Presbyterian - Columbia University Irving Medical Center, New York, NY

Reproducible Technique For Construction Of PTFE-Valved Conduit
Shelby Aughtman, MD¹, Peter Wearden, MD, PhD², Jennifer Nelson, MD, MS^2
1Eastern Virginia Medical School, Norfolk, VA, ²Nemours Children's Health, Orlando, FL

A Novel And Safer Approach To Redo Sternotomy In Patients With Complex Congenital Heart Disease
Ali Ibrahimiye, Nicholas Bullington, Camille Hancock Friesen
Childrens Hospital and Medical Center Omaha, Omaha, NE

Simple And Safe Redo Sternotomy Technique Using Ultrasonic Bone Scalpel For The Patient With Calcified Conduit Embedded Into Sternum
Narutoshi Hibino, MD, PhD
University of Chicago, Advocate Children's Hospital, Chicago, IL

Outcomes Of Right-sided Atrioventricular Valve Surgery In Congenitally Corrected Transposition
Elizabeth Stephens, MD, PhD, Ahmed A. Abedlrehim, MBBCh, William R. Miranda, MD, Heidi M. Connolly, MD, Joseph A. Dearani, MD
Mayo Clinic, Rochester, MN

Clinical Outcomes And Echocardiographic Predictors Of Reintervention After Interrupted Aortic Arch Repair
Hannah L. McMullen, MD, Jamie K. Harrington, MD, David Blitzer, MD, Nikhil Pasumarti, RDCS, Stéphanie Levasseur, MD, Emile Bacha, MD, David Kalfa, MD, PhD
Morgan Stanley Children Hospital -New York Presbyterian Hospital, Columbia University, New York, NY

Truncus Arteriosus And Truncal Valve Insufficiency: What Matters?
Paige E. Brlecic, MD, Carlos Bonilla-Ramirez, MD, Neil Cambronero, MD, Ziyad M. Binsalamah, MD FRCSC, Iki Adachi, MD, Edward J. Hickey, MD, Michiaki Imamura, Md PhD, Jeffrey S. Heinle, MD, Christopher A. Caldarone, MD
Baylor College of Medicine, Houston, TX

The Academic Impact Of Congenital Heart Surgeons' Society (CHSS) Studies
Jeffrey Phillip Jacobs¹, Tara Karamlou², Hani K. Najm², Bradley S. Marino², Eugene H. Blackstone², Lars G. Svensson, MD^2
1University of Florida, Gainesville, FL, ²Cleveland Clinic, Cleveland, OH

Should We Be Bridging More VAD Patients To Transplant At Home?
Jason W. Greenberg, MD, Alia Dani, MD, MPH, Kyle W. Riggs, MD, Farhan Zafar, MD, MS, David L. S. Morales, MD
Cincinnati Children's Hospital Medical Center, Cincinnati, OH

Pediatric Ross Procedure: Systematic Review Using Individual Data Pooling
Nabil Dib, Walid Ben Ali, Paul Khairy, Thierry Ducruet, Pierre-Luc Bernier, Nancy Poirier
Montreal Heart Institute, Montreal, QC, Canada

Longitudinal Survival Of Glenn Patients Over Thirty Years (1958-1990) Beginning With Dr. William Glenn's First Patient
Madonna E. Lee, MD, Andrea Amabile, MD, Arnar Geirsson, MD, Peter J. Gruber, MD, PhD, Gary S. Kopf, MD
Yale University School of Medicine, New Haven, CT

Concurrent Cultured Thymus Tissue Implantation And Orthotopic Heart Transplantation: A Case Report On The First Clinical Experience
Lillian Kang, MD, James M. Meza, MD, MSc, Nicholas D. Andersen, MD, Henry E. Rice, MD, Michael P. Carboni, MD, M. Louise Markert, MD, Joseph W. Turek, MD, PhD, MBA
Duke University Medical Center, Durham, NC

Asymmetrical Aortic Valve Leaflets
Antonio F. Corno, Taylor S. Koerner, Mayme E. Marshall, Lauren S. Talley, Megan E. Childress, Thomas Cunningham, Rami M. Kharouf, Wen Li, Jorge D. Salazar
UTHealth of Houston Science Center, Houston, TX

How Good Can Transventricular Repair In Newborns With Tetralogy Of Fallot Be?
Soichiro Hemmi, Aybala Tongut, Mahmut Ozturk, Kei Kobayashi, Satoshi Miyairi, Can Yerebakan, Yves d'Udekem
Children's National Hospital, Washington, DC

Does The Type Of Pulmonary Valve Reconstruction For Tetralogy Of Fallot (TOF) Repair Matter In The Long Term?
Amina Jaji, MD¹, Emily Pena, PA-C¹, Umar Siddiqi², Luca Vricella, MD³, Chawki El-Zein, MD¹, Narutoshi Hibino, MD, PhD^3
1Advocate Children's Hospital - Heart Center, Oak Lawn, IL, ²University of Chicago - Department of surgery, Division of cardiac surgery, Chicago, IL, ³Advocate Children's Hospital & University of Chicago - Department of surgery, Division of cardiac surgery, Oak Lawn, IL

Pericardial Effusions After The Arterial Switch Operation: A Review Of The Pediatric Health Information System Database
Matthew F. Mikulski, MD, Andrew Well, MD MPH MSHCT, Sujata Subramanian, MD, Charles D. Fraser, Jr, MD, Carlos M. Mery, MD MPH, Richard P. Lion, DO MPH
Dell Medical School, The University of Texas at Austin, Austin, TX

Growth Differentiation Factor 15: A Novel Growth Biomarker For Children With Congenital Heart Disease
Dane C. Paneitz¹, Alice Zhou, BS¹, Lisa Yanek¹, Srujana Golla¹, Sravani Avula², Prince Kannankeril³, Allen Everett¹, Bret Mettler¹, Danielle Gottlieb Sen^1
1Johns Hopkins University School of Medicine, Baltimore, MD, ²Children's Medical Center Dallas, Dallas, TX, ³Vanderbilt University Medical Center, Nashville, TN

Outcomes Of Pulmonary Valve Replacement By Prosthetic Type In Adults With Congenital Heart Disease
Dane C. Paneitz, Selena Li, Ami Bhatt, Duke E. Cameron, Jordan P. Bloom
Massachusetts General Hospital, Boston, MA

V6. Truncal Valve Repair, VSD Repair, And Aortic Arch Reconstruction
M Mujeeb Zubair, MD, Mariana Chavez, MD, MPH, Christopher W. Baird, MD
Boston Children's Hospital, Boston, MA

V7. Modified Ozaki Procedure For Truncal Valve Reconstruction In Neonate With Severe Truncal Valve Stenosis And Regurgitation
Narutoshi Hibino, MD, PhD¹, Chawki El-zein, MD², Emily Pena, PA², Luca Vricella, MD^1
1University of Chicago, Advocate Children's Hospital, Chicago, IL, ²Advocate Children's Hospital, Oak lawn, IL

V8. A Tale Of Two Conversions: Dichotomous Decision In The Spectrum Of Shone'S Complex, Still A Dilemma
Nicholas Oh, Tara Karamlou, Miza Hammoud, Sara Hossieny, Betemariam Sharew, John Costello, Munir Ahmad, Hani Najm
Cleveland Clinic Foundation, Cleveland, OH

A11. MY WORST NIGHTMARE CASE
Undiagnosed Circumflex Artery Off The Right Pulmonary Artery: The Importance of Routine Intraoperative Inspection Of Coronary Arteries In Neonatal Heart Surgery
Douglas Overbey, MD MPH, Nicholas Andersen, MD, Joseph Turek, MD PhD
Duke University, Durham, NC

A12. MY WORST NIGHTMARE CASE
Patience Is Required After Late Conversion To Norwood Physiology
Dennis Wells, MD, David S. Winlaw, MD, MBBS
Cincinnati Children's Hospital Medical Center, Cincinnati, OH

~ John A. Hawkins Top Scoring Abstract Award ~

A13. A New Operation For Truncus Arteriosus With Unrepairable Truncal Valve: The First Human Partial Heart Transplant
Joseph W. Turek, MD, PhD¹, MBA, Lillian Kang, MD¹, Anna Hoover, Neel Prabhu¹, Michael Mulvihill, MD¹, Michael P. Carboni, MD¹, Nicholas D. Andersen, MD¹, T. Konrad Rajab, MD^2
1Duke University Medical Center, Durham, NC, ²Medical University of South Carolina, Charleston, SC

Invited Discussant: James K. Kirklin, MD

A14. Effect Of Cardiac Graft Rejection On Semilunar Valve Function: Implications For Heart Valve Transplantation
Deani McVadon, William Hardy, Katerina Boucek, William Rivers, Jennie Kwon, Minoo Kavarana, John Costello, T. Konrad Rajab
Medical University of South Carolina, Charleston, SC

A15. Outcomes Of Univentricular Palliation After Initial Bilateral Pulmonary Artery Banding In Infants With Critical Left Heart Obstruction: An Analysis Of The CHSS LVOTO Cohort
Madison B. Argo, MD¹, Pirooz Eghtesady, MD, PhD², David J. Barron, MD¹, Hani K. Najm, MD, MSc³, Bahaaldin Alsoufi, MD⁴, Christopher A. Caldarone, MD⁵, Sergio A. Carrillo, MD⁶, William M. DeCampli, MD, PhD⁷, Mark Galantowicz, MD⁶, Osami Honjo, MD, PhD¹, S. Adil Husain, MD⁸, Jeffrey P. Jacobs, MD⁹, Anusha Jegatheeswaran, MD, PhD¹⁰, Tara Karamlou, MD, MSc³, James K. Kirklin, MD¹¹, Linda Lambert, MSN-cFNP⁸, Michael E. Mitchell, MD¹², Jennifer Nelson, CCRC¹³, Tharini Paramananthan, RN, MScN¹, Maha Rahman, BSc¹, Karthik Ramakrishnan, MD¹⁴, Jennifer C. Romano, MD, MS¹⁵, Joseph W. Turek, MD, PhD¹⁶, Can Yerebakan, MD¹⁷, Brian W. McCrindle, MD, MPH^1
1Hospital for Sick Children, Toronto, ON, Canada, ²Washington University, St. Louis, MO, ³The Cleveland Clinic, Cleveland, OH, ⁴University of Louisville, Louisville, KY, ⁵Texas Children's Hospital, Houston, TX, ⁶Nationwide Children's Hospital, Columbus, OH, ⁷Arnold Palmer Hospital for Children, Orlando, FL, ⁸Primary Children's Hospital, Salt Lake City, UT, ⁹University of Florida Health Sciences Center, Gainesville, FL, ¹⁰Great Ormond Street Hospital for Children, London, United Kingdom, ¹¹University of Alabama at Birmingham, Birmingham, AL, ¹²Children's Hospital Wisconsin, Milwaukee, WI, ¹³Children's Mercy Kansas City, Kansas City, MO, ¹⁴University of Tennessee Health Science Center, Memphis, TN, ¹⁵Mott Children's Hospital, Ann Arbor, MI, ¹⁶Duke University Medical Center, Durham, NC, ¹⁷Children's National Hospital, Washington, DC

A16. A Hidden Malice: Viscous Energy Loss Is Linked To Poor Late Outcomes Following A Hemodynamically Successful Aortic Coarctation Repair
Liam Swanson, MS¹, Emilie Sauvage, PhD¹, Malebogo Ngoepe, PhD², Jan Bruse, PhD³, Silvia Schievano, PhD¹, Tain-Yen Hsia, MD^4
1University College London, London, United Kingdom, ²University of Cape Town, London, United Kingdom, ³Vicomtech Foundation, Donostia-San Sebastian, Spain, ⁴Arnold Palmer Hospital for Children, Orlando, FL

A17. Long Term Health Related Quality Of Life Outcomes Across The Therapeutic Spectrum In Patients With Congenitally Corrected Transposition Of Great Arteries: A Balancing Score
Sohini Gupta, Dominique L. Tucker, Olivia McCloskey, Chang Yoon Doh, Miza Salim Hammoud, MD, Andrew Toth, MS, Paola A. Barrios, Rukmini Komarlu, Gosta Pettersson, Eugene Blackstone, Hani K.Najm, Tara Karamlou
Cleveland Clinic, Cleveland, OH

A18. A Single Institutional Experience With 36 Children Smaller Than 5 Kilograms Supported With The Berlin Heart Ventricular Assist Device (VAD) Over 12 Years: Comparison Of Patients With Biventricular Versus Functionally Univentricular Circulation
Mark S. Bleiweis, Giles J. Peek, Jeffrey P. Jacobs
University of Florida, Gainesville, FL

A19. Predictors Of Veno-arterial Extracorporeal Membrane Oxygenation After Surgical Repair Of Peripheral Pulmonary Stenoses
Lloyd M. Felmly, MD, Richard D. Mainwaring, MD, Elisabeth Martin, MD, Michael R. Ma, MD, Frank L. Hanley, MD
Stanford University School of Medicine, Palo Alto, CA

A20. Current Transplantation Outcomes For Fontan Patients Including Multi-organ & Vad Therapy
Spencer Hogue, BS, Amalia Guzman-Gomez, BS, Katerina Boucek, MD, Chet Villa, MD, Clifford Chin, MD, Angela Lorts, MD, MBA, Jason W. Greenberg, MD, Farhan Zafar, MD, MS, David G. Lehenbauer, MD, David S. Winlaw, MBBS, MD, FRACS, David L. S. Morales, MD
Cincinnati Children's Hospital Medical Center, Cincinnati, OH

Invited Discussant: Stephanie Fuller, MD

A21. Regionalization or Access to Care? A Joint Program That Achieves Both
Carl L. Backer, MD
UK Healthcare Kentucky Children's Hospital, Lexington, KY

A22. Machine Learning-derived Optimal Classification Tree Analysis Of An International Congenital Cardiac Surgical Database For Hospital - Specific Individual Patient Risk Prediction And Congenital Heart Surgery Program Self-assessment
George E. Sarris, MD, PhD¹, Daisy Zhuo, PhD², Jordan Levine, MEng³, Jack Dunn, PhD⁴, Luca Mingardi, MBAn², Zdzislaw Tobota, MD⁵, Bohdan Maruszewski, MD, PhD⁵, Jose Fragata, MD, PhD⁶, Dimitris Bertsimas, PhD^7
1Athens Heart Surgery Institute - Mitera Children's Hospital, Athens, Greece, ²Alexandria Health, Cambridge, MA, ³Alexandria Health, Providence, RI, ⁴Alexandria Health, Cambridge, MA, MA, ⁵Children's Memorial Health Institute, Warsaw, Poland, ⁶Hospital de Santa Marta and NOVA University, Lisbon, Portugal, ⁷Operations Research Center and Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA

A23. Design And Implementation Of A Multi-pronged Pediatric DCD Heart Procurement Program: No Child Left Behind
Nicholas D. Andersen¹, Michael Carboni¹, Konrad Rajab², Douglas Overbey¹, Benjamin Bryner¹, Desiree Bonadonna¹, Sarah Casalinova¹, Jacob Schroder¹, Joseph W. Turek^1
1Duke University Medical Center, Durham, NC, ²The Medical University of South Carolina, Charleston, SC

A24. Phentolamine On Cardiopulmonary Bypass Causes Effective Cooling And Rewarming In Infants At The Cost Of Post-Operative Lactic Acidosis And Higher Inotrope Requirement
Manan H. Desai¹, Nicolle Ceneri, MD¹, Jessica Klube¹, Mark Nuszkowski¹, Andrea Stough¹, Eleanor Gerhard, MD¹, David Zurakowski², Karthik Ramakrishnan^1
1Children's National Medical Centre, Washington, DC, ²Boston Children's Hospital, Boston, MA

A25. A Coordinated Team Can Extinguish 95% Of Neural Threats Identified By EEG-Based Multimodality Neuromonitoring In Cardiac Surgery
Thomas Yeh, MD, PhD, Daniel Millan, MD, John Miller, CCP, Christos Calaritis, CCP, Daniel Adams, CNIM, Aida Sehic, MD, PhD
Virginia Commonwealth University, Richmond, VA

A26. Does The External Pericardial Lateral Tunnel Fontan Pathway Enlarge To Accommodate Somatic Growth? A PreliminaryAnalysis
Amy Rahm, MD, Sonia Voleti, MD, Jacob Razzouk, BS, Anees Razzouk, MD, Randall S. Fortuna, MD
Loma Linda University, Loma Linda, CA