Undergraduate Degree

  • University of Texas at Austin , 1987 , Austin , TX

Medical School

  • University of Texas Southwestern Medical School , 1992 , Dallas , TX


  • University of Texas Southwestern Medical School/Children's Medical Center , 1993 , Dallas , TX


  • University of Texas Southwestern Medical School/Children's Medical Center , 1995 , Dallas , TX


  • Columbia Presbyterian Medical Center/Babies and Children's Hospital , 2000 , New York , NY


  • Boston Children's Hospital , 2001 , Boston , MA

Philosophy of Care

I strive for a patient and family centered approach to cardiac care, through close collaboration with colleagues in other specialties, such as oncology, other divisions within cardiology and within the cardiomyopathy and non-invasive imaging groups. Long-term management of cardiomyopathies requires a team of care providers.  Supporting all members of the team is a core philosophy, through continuous education and investment in regular interpersonal conferences.


  • American Board of Pediatrics, Pediatric Cardiology


Publications powered by Harvard Catalyst Profiles

  1. Exercise Capacity and Predictors of Performance After Fontan: Results from the Pediatric Heart Network Fontan 3 Study. Pediatr Cardiol. 2021 Jan; 42(1):158-168. View abstract
  2. Value of Exercise Stress Echocardiography in Children with Hypertrophic Cardiomyopathy. J Am Soc Echocardiogr. 2020 07; 33(7):888-894.e2. View abstract
  3. Baseline Characteristics of the VANISH Cohort. Circ Heart Fail. 2019 12; 12(12):e006231. View abstract
  4. Comparison of echocardiographic measurements to invasive measurements of diastolic function in infants with single ventricle physiology: a report from the Pediatric Heart Network Infant Single Ventricle Trial. Cardiol Young. 2019 Oct; 29(10):1248-1256. View abstract
  5. Markers of Bone Mineral Metabolism and Cardiac Structure and Function in Perinatally HIV-Infected and HIV-Exposed but Uninfected Children and Adolescents. . 2019 06 01; 81(2):238-246. View abstract
  6. Regional practice norms for the care of childhood cancer survivors at risk for cardiomyopathy: A Delphi study. Pediatr Blood Cancer. 2019 09; 66(9):e27868. View abstract
  7. Cardiac and inflammatory biomarkers in perinatally HIV-infected and HIV-exposed uninfected children. AIDS. 2018 06 19; 32(10):1267-1277. View abstract
  8. Longitudinal Outcomes of Patients With Single Ventricle After the Fontan Procedure. J Am Coll Cardiol. 2017 Jun 06; 69(22):2735-2744. View abstract
  9. The Effect of the Superior Cavopulmonary Anastomosis on Ventricular Remodeling in Infants with Single Ventricle. J Am Soc Echocardiogr. 2017 Jul; 30(7):699-707.e1. View abstract
  10. Assessment of Diastolic Function in Single-Ventricle Patients After the Fontan Procedure. J Am Soc Echocardiogr. 2016 11; 29(11):1066-1073. View abstract
  11. Systolic-diastolic functional coupling in healthy children and in those with dilated cardiomyopathy. J Appl Physiol (1985). 2016 Jun 01; 120(11):1301-18. View abstract
  12. Assessment of Quality of Life in Young Patients with Single Ventricle after the Fontan Operation. J Pediatr. 2016 Mar; 170:166-72.e1. View abstract
  13. The reproducibility and absolute values of echocardiographic measurements of left ventricular size and function in children are algorithm dependent. J Am Soc Echocardiogr. 2015 May; 28(5):549-558.e1. View abstract
  14. Survival data and predictors of functional outcome an average of 15?years after the Fontan procedure: the pediatric heart network Fontan cohort. Congenit Heart Dis. 2015 Jan-Feb; 10(1):E30-42. View abstract
  15. Recovery of echocardiographic function in children with idiopathic dilated cardiomyopathy: results from the pediatric cardiomyopathy registry. J Am Coll Cardiol. 2014 Apr 15; 63(14):1405-13. View abstract
  16. Factors associated with serum B-type natriuretic peptide in infants with single ventricles. Pediatr Cardiol. 2014 Jun; 35(5):879-87. View abstract
  17. Variability of M-mode versus two-dimensional echocardiography measurements in children with dilated cardiomyopathy. Pediatr Cardiol. 2014 Apr; 35(4):658-67. View abstract
  18. Predictors of disease progression in pediatric dilated cardiomyopathy. Circ Heart Fail. 2013 Nov; 6(6):1214-22. View abstract
  19. Functional health status in children and adolescents after Fontan: comparison of generic and disease-specific assessments. Cardiol Young. 2014 Jun; 24(3):469-77. View abstract
  20. Factors impacting echocardiographic imaging after the Fontan procedure: a report from the pediatric heart network fontan cross-sectional study. Echocardiography. 2013 Oct; 30(9):1098-106. View abstract
  21. Ventricular mechanics in patients with aortic valve disease: longitudinal, radial, and circumferential components. Cardiol Young. 2014 Feb; 24(1):105-12. View abstract
  22. Superior cavopulmonary anastomosis timing and outcomes in infants with single ventricle. J Thorac Cardiovasc Surg. 2013 May; 145(5):1288-96. View abstract
  23. Outcomes of restrictive cardiomyopathy in childhood and the influence of phenotype: a report from the Pediatric Cardiomyopathy Registry. Circulation. 2012 Sep 04; 126(10):1237-44. View abstract
  24. Cardiac performance and quality of life in patients who have undergone the Fontan procedure with and without prior superior cavopulmonary connection. Cardiol Young. 2013 Jun; 23(3):335-43. View abstract
  25. Comparison of Fontan survivors with and without pacemakers: a report from the Pediatric Heart Network Fontan Cross-Sectional Study. Congenit Heart Dis. 2013 Jan-Feb; 8(1):32-9. View abstract
  26. The ventricular volume variability study of the Pediatric Heart Network: study design and impact of beat averaging and variable type on the reproducibility of echocardiographic measurements in children with chronic dilated cardiomyopathy. J Am Soc Echocardiogr. 2012 Aug; 25(8):842-854.e6. View abstract
  27. Non-geometric echocardiographic indices of ventricular function in patients with a Fontan circulation. J Am Soc Echocardiogr. 2011 Nov; 24(11):1213-9. View abstract
  28. Reproducibility of echocardiographic diagnosis of left ventricular noncompaction. J Am Soc Echocardiogr. 2012 Feb; 25(2):194-202. View abstract
  29. Surgical interventions for atrioventricular septal defect subtypes: the pediatric heart network experience. Ann Thorac Surg. 2011 Oct; 92(4):1468-75; discussion 1475. View abstract
  30. Impaired cardiac reserve and severely diminished skeletal muscle O2 utilization mediate exercise intolerance in Barth syndrome. . 2011 Nov; 301(5):H2122-9. View abstract
  31. Factors affecting growth in infants with single ventricle physiology: a report from the Pediatric Heart Network Infant Single Ventricle Trial. J Pediatr. 2011 Dec; 159(6):1017-22.e2. View abstract
  32. Practice variability and outcomes of coil embolization of aortopulmonary collaterals before Fontan completion: a report from the Pediatric Heart Network Fontan Cross-Sectional Study. Am Heart J. 2011 Jul; 162(1):125-30. View abstract
  33. Late status of Fontan patients with persistent surgical fenestration. J Am Coll Cardiol. 2011 Jun 14; 57(24):2437-43. View abstract
  34. Postnatal left ventricular diastolic function after fetal aortic valvuloplasty. Am J Cardiol. 2011 Aug 15; 108(4):556-60. View abstract
  35. Renin-angiotensin-aldosterone genotype influences ventricular remodeling in infants with single ventricle. Circulation. 2011 May 31; 123(21):2353-62. View abstract
  36. Outcome of hematopoietic stem cell transplant in children with congenital heart disease. Pediatr Transplant. 2011 Feb; 15(1):75-80. View abstract
  37. Changes in echocardiographic measures of systolic and diastolic function in children 1 year after hematopoietic SCT. Bone Marrow Transplant. 2011 Dec; 46(12):1532-9. View abstract
  38. Noncoronary cardiac abnormalities are associated with coronary artery dilation and with laboratory inflammatory markers in acute Kawasaki disease. J Am Coll Cardiol. 2011 Jan 04; 57(1):86-92. View abstract
  39. Predictors of coronary artery visualization in Kawasaki disease. J Am Soc Echocardiogr. 2011 Jan; 24(1):53-9. View abstract
  40. Surgical management of complete atrioventricular septal defect: associations with surgical technique, age, and trisomy 21. J Thorac Cardiovasc Surg. 2011 Jun; 141(6):1371-9. View abstract
  41. Anthropometric measures after Fontan procedure: implications for suboptimal functional outcome. Am Heart J. 2010 Dec; 160(6):1092-8, 1098.e1. View abstract
  42. The Fontan patient: inconsistencies in medication therapy across seven pediatric heart network centers. Pediatr Cardiol. 2010 Nov; 31(8):1219-28. View abstract
  43. Ventricular remodeling and survival are more favorable for myocarditis than for idiopathic dilated cardiomyopathy in childhood: an outcomes study from the Pediatric Cardiomyopathy Registry. Circ Heart Fail. 2010 Nov; 3(6):689-97. View abstract
  44. Arrhythmias in a contemporary fontan cohort: prevalence and clinical associations in a multicenter cross-sectional study. J Am Coll Cardiol. 2010 Sep 07; 56(11):890-6. View abstract
  45. Enalapril in infants with single ventricle: results of a multicenter randomized trial. Circulation. 2010 Jul 27; 122(4):333-40. View abstract
  46. An echocardiographic model predicting severity of aortic regurgitation in congenital heart disease. Circ Cardiovasc Imaging. 2010 Sep; 3(5):542-9. View abstract
  47. Partial and transitional atrioventricular septal defect outcomes. Ann Thorac Surg. 2010 Feb; 89(2):530-6. View abstract
  48. Laboratory measures of exercise capacity and ventricular characteristics and function are weakly associated with functional health status after Fontan procedure. Circulation. 2010 Jan 05; 121(1):34-42. View abstract
  49. Functional state following the Fontan procedure. Cardiol Young. 2009 Aug; 19(4):320-30. View abstract
  50. Comparison of echocardiographic and cardiac magnetic resonance imaging measurements of functional single ventricular volumes, mass, and ejection fraction (from the Pediatric Heart Network Fontan Cross-Sectional Study). Am J Cardiol. 2009 Aug 01; 104(3):419-28. View abstract
  51. Rationale and design of a trial of angiotensin-converting enzyme inhibition in infants with single ventricle. Am Heart J. 2009 Jan; 157(1):37-45. View abstract
  52. Relationship of magnetic resonance imaging estimation of myocardial iron to left ventricular systolic and diastolic function in thalassemia. JACC Cardiovasc Imaging. 2008 Sep; 1(5):572-8. View abstract
  53. Contemporary outcomes after the Fontan procedure: a Pediatric Heart Network multicenter study. J Am Coll Cardiol. 2008 Jul 08; 52(2):85-98. View abstract
  54. A cross-sectional study of exercise performance during the first 2 decades of life after the Fontan operation. J Am Coll Cardiol. 2008 Jul 08; 52(2):99-107. View abstract
  55. Contemporary management of pediatric heart failure. Expert Rev Cardiovasc Ther. 2008 Feb; 6(2):187-97. View abstract
  56. Impact of transvenous ventricular pacing leads on tricuspid regurgitation in pediatric and congenital heart disease patients. J Interv Card Electrophysiol. 2008 Jan; 21(1):65-8. View abstract
  57. Predictors of Functional Status following Fontan Palliation: Development of a Fontan Functional Score . Circulation. 2007; 116:479. View abstract
  58. Comparative Analysis of Outcomes for Pediatric Patients with Biopsy-Proven Myocarditis, Physician-Diagnosed Myocarditis and Idiopathic Dilated Cardiomyopathy. Circulation. 2007; 116:565. View abstract
  59. Impaired Skeletal Muscle Oxygen Utilization Contributes to Exercise Intolerance in Barth Syndrome . Circulation. 2007; 116:615. View abstract
  60. Safety and efficacy of carvedilol therapy for patients with dilated cardiomyopathy secondary to muscular dystrophy. Pediatr Cardiol. 2008 Mar; 29(2):343-51. View abstract
  61. Superior outcomes for repair in infants and neonates with tetralogy of Fallot with absent pulmonary valve syndrome. J Thorac Cardiovasc Surg. 2006 Nov; 132(5):1099-104. View abstract
  62. Vascular endothelial growth factor delays onset of failure in pressure-overload hypertrophy through matrix metalloproteinase activation and angiogenesis. Basic Res Cardiol. 2006 May; 101(3):204-13. View abstract
  63. Pulmonary hypertension and right ventricular dysfunction in growth-restricted, extremely low birth weight neonates. J Perinatol. 2005 Jul; 25(7):495-9. View abstract
  64. Association between cardiac tumors and tuberous sclerosis in the fetus and neonate. Am J Cardiol. 2003 Aug 15; 92(4):487-9. View abstract
  65. Echocardiographic assessment of the right ventricular response to hypertension in neonates on the basis of average-shaped contraction models. J Am Soc Echocardiogr. 2002 Oct; 15(10 Pt 2):1145-53. View abstract
  66. Septation of the single ventricle: revisited. J Thorac Cardiovasc Surg. 2002 Sep; 124(3):442-7. View abstract