David Balzer, M.D.  balzerdt@wustl.edu

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Director - Interim, Cardiology
Researcher, Patient Oriented Research Unit

phone: (314) 454-6095


  • MD, Saint Louis University School of Medicine1985


  • Resident, Cardinal Glennon Children's Hospital1985 - 1988
  • Fellowship, Washington University School of Medicine St. Louis Children's Hospital1991 - 1994

Licensure and Board Certification

  • 1986 - PresMO, Medical License
  • 1989 - 2013American Board of Pediatrics
  • 1996 - PresABP, Sub-Board of Pediatric Cardiology
  • 2001 - PresAGA Medical Corporation. Proctor for ASD, VSD, PDA, PFO device placement
  • 2005 - PresAGA Medical Corporation. Muscular VSD advisory board
  • 2007 - PresWL Gore. Consultant for ASD device
  • 2012 - Pres2012 - Pres Medtronic. Proctor for Melody valve

Honors and Awards

  • Benjamin H. Cohen Memorial Award in Pediatrics1988
  • Ross Laboratory Award for Neonatology1988
  • St. Louis Best Doctors, St. Louis Magazine2006
  • St. Louis Best Doctors, St. Louis Magazine2007
  • St. Louis Best Doctors, St. Louis Magazine2008
  • St. Louis Best Doctors, St. Louis Magazine2009
  • St. Louis Best Doctors, St. Louis Magazine2010
  • St. Louis Best Doctors, St. Louis Magazine2011
  • St. Louis Best Doctors, St. Louis Magazine2012
  • St. Louis Best Doctors, St. Louis Magazine2013
  • Distinguished Clinician Award Washington University School of Medicine2014
  • St Louis Best Doctors, St. Louis Magazine2014
  • St. Louis Best Doctors, St. Louis Magazine2015
  • St Louis Best Doctors, St. Louis Magazine2016
  • St. Louis Best Doctors, St. Louis Magazine2017
  • St. Louis Best Doctors, St. Louis Magazine2018
  • St. Louis Best Doctors, St. Louis Magazine2019
  • St Louis Best Doctors, St Louis Magazine2020
  • PICS Society Founding Fellow2021 - Pres

Recent Publications view all (90)

Publication Co-Authors

  1. Cardiac Magnetic Resonance to Predict Coronary Artery Compression in Transcathetre Pulmonary Valve Implantation into Conduits JACC:Cardiovascular Interventions. 2022;15(9):989-991. doi:10.1016/j.jcin.2022.02.047  
  2. Interpreting Quality Improvement When Introducing New Technology: A Collaborative Experience in ASD Device Closures. Pediatr Cardiol. 2022;43(3):596-604. PMID:34743224 
  3. Procedural Risk in Congenital Cardiac Catheterization (PREDIC3T) JAHA. 2022;11(1):e022832. doi:10.1161/JAHA.121.022832  PMID:34935425 
  4. Procedural Risk in Congenital Cardiac Catheterization (PREDIC3T). J Am Heart Assoc. 2022;11(1):e022832. PMID:34935425 
  5. Incorporation of the CardioMEMS™ System During an Exercise Physiology Test in a Pediatric Congenital Heart Disease Patient Contributing to Medical Decision-Making. Pediatr Cardiol. 2021. PMID:34668991 
  6. Pediatric Use of a Novel Thrombectomy System Designed to Minimize Blood Loss. JACC Cardiovasc Interv. 2021;14(15):e195-e196. PMID:34274298 
  7. Comparison of the investigational device exemption and post-approval trials of the Melody transcatheter pulmonary valve. Catheter Cardiovasc Interv. 2021;98(2):E262-E274. PMID:33780150 
  8. Total Transcatheter Stage 1: A Word of Caution. Pediatr Cardiol. 2021;42(6):1410-1415. PMCID:PMC8083101  PMID:33914123 
  9. Midterm outcomes of the Potts shunt for pediatric pulmonary hypertension, with comparison to lung transplant. J Thorac Cardiovasc Surg. 2021;161(3):1139-1148. PMID:33454101 
  10. Transcatheter Pulmonary Valve Replacement with the Sapien Prosthesis J Am Coll Cardiol . 2020;76(24):2847-2858. doi:doi.org/10.1016/j.jacc.2020.10.041  
  11. Alterra Adaptive Prestent and SAPIEN 3 for Congenital Pulmonic Valve Dysfunction: an Early Feasibility Study JACC: Cardiovascular Interventions. 2020. doi:10/1016/j.jcin.2020.06.039  
  12. Outcomes After Transcatheter Reintervention for Dysfunction of a Previously Implanted Transcatheter Pulmonary Valve J Am Coll Cardiol Intv. 2020;13(13):1529-1540. doi:doi.org/10.1016/j.jcin.2020.03.035  
  13. Longitudinal Improvements in Radiation Exposure in Cardiac Catheterization for Congenital Heart Disease: A Prospective Multi-Center C3PO-QI Study Circ Cardiovasc Interv.. 2020;13(5). doi:10.1161/circinterventions.119.008172  PMID:32408819 
  14. Effect of Pressure Recovery on Pressure Gradients in Congenital Stenotic Outflow Lesions in Pediatric Patients-Clinical Implications of Lesion Severity and Geometry: A Simultaneous Doppler Echocardiography and Cardiac Catheter Correlative Study. J Am Soc Echocardiogr. 2020;33(2):207-217. PMID:31699474 
  15. Surgical Versus Percutaneous Closure of PDA in Preterm Infants: Procedural Charges and Outcomes. J Surg Res. 2019;243:41-46. PMID:31154131 
  16. Modified delivery of SAPIEN 3 valve in the pulmonary position: Evolution of technique or dire need? Catheter Cardiovasc Interv. 2018. doi:10.1002/ccd.27946  PMID:30408317 
  17. Intentional fracture of bioprosthetic valve frames in patients undergoing valve-in-valve transcatheter pulmonary valve replacement Circ Cardiovasc Interv. 2018;11(8):e006453. doi:10.1161/CIRCINTERVENTIONS.118.006453  PMID:30354783 
  18. Transcatheter pulmonary valve replacement using the melody valve for treatment of dysfunctional surgical bioprostheses: A multicenter study. J Thorac Cardiovasc Surg. 2018;155(4):1712-1724. doi:10.1016/j.jtcvs.2017.10.143  PMID:29395214 
  19. Transcatheter Pulmonary Valve Replacement With the Melody Valve in Small Diameter Expandable Right Ventricular Outflow Tract Conduits. JACC Cardiovasc Interv. 2018;11(6):554-564. PMID:29566801 
  20. Percutaneous transcatheter pulmonary valve replacement in children weighing less than 20 kg. Catheter Cardiovasc Interv. 2018;91(3):485-494. doi:10.1002/ccd.27432  PMID:29193671 
  21. Post-operative Catheterization Interventions at the Site of Surgery: An Application of the CRISP Scoring System. Pediatr Cardiol. 2018. PMID:29327147 
  22. Fracturing a dysfunctional Edwards Perimount bioprosthetic valve to facilitate percutaneous valve-in-valve placement of SAPIEN 3 valve with modified delivery system. Catheter Cardiovasc Interv. 2018;91(1):81-85. PMID:29024339 
  23. Long-Term Outcomes of Patent Foramen Ovale Closure or Medical Therapy after Stroke. N Engl J Med. 2017;377(11):1022-1032. PMID:28902590 
  24. Circulatory Support Using the Impella Device in Fontan Patients with Systemic Ventricular Dysfunction: A Multicenter Experience Catheter Cardiovasc Interv. 2017;90(1):118-123. doi:10.1002/ccd.26885  
  25. Impact of Transcatheter Pulmonary Valve Replacement on Tricuspid Regurgitation in Patients with Right Ventricular Pressure and/or Volume Overload JACC. 2016;68(14):1525-1535. PMID:27687194 
  26. Percutaneous Pulmonary Valve Implantation Alters Electrophysiologic Substrate. J Am Heart Assoc. 2016;5(10):e004325. PMID:27694326 
  27. Radiation Exposure by Three-Dimensional Rotational Angiography (3DRA) During Trans-catheter Melody Pulmonary Valve Procedures (TMPV) in a Pediatric Cardiac Catheterization Laboratory. Pediatr Cardiol. 2016. PMID:27452802 
  28. Transcatheter implantation of SAPIEN 3 valve in native right ventricular outflow tract for severe pulmonary regurgitation following tetralogy of fallot repair. Catheter Cardiovasc Interv. 2016;88(1):E28-33. PMID:26945801 
  29. Improved survival after heart transplant for failed Fontan patients with preserved ventricular function. J Heart Lung Transplant. 2016. doi:10.1016/j.healun.2016.02.005  PMID:27068035 
  30. Percutaneous carotid artery access in infants < 3 months of age. Catheter Cardiovasc Interv. 2015. doi:10.1002/ccd.26310  PMID:26697954 
  31. Sedation and Anesthesia in Pediatric and Congenital Cardiac Catheterization: A Prospective Multicenter Experience. Pediatr Cardiol. 2015;36(7):1363-75. doi:10.1007/s00246-015-1167-8  PMID:25991570 
  32. Case 2: Refractory Hypertension in a Neonate NeoReviews. 2015;16(8):e493-e496. doi:10.1542/neo.16-8-e497  
  33. Case Report: Percutaneous Closure of an Ascending Aortic Pseudoaneurysm by 3D Angiography Guidance. Methodist Debakey Cardiovasc J. 2015;11(2):137-9. doi:10.14797/mdcj-11-2-137  PMCID:PMC4547670  PMID:26306133 
  34. One-year follow-up of the Melody transcatheter pulmonary valve multicenter post-approval study. JACC Cardiovasc Interv. 2014;7(11):1254-62. doi:10.1016/j.jcin.2014.08.002  PMID:25459038 
  35. Treatment of cardiovascular complications of Alagille syndrome in clinical optimization for liver transplantation. Int J Cardiol. 2014;176(2):e37-40. doi:10.1016/j.ijcard.2014.04.187  PMID:25091721 
  36. Left main coronary artery dissection in pediatric sport-related chest trauma. J Emerg Med. 2014. doi:10.1016/j.jemermed.2014.04.034  PMID:24928544 
  37. Intracardiac Echocardiographic Atrial Septal Defect Closure. Methodist Debakey Cardiovasc J. 2014;10(2):88-92. PMCID:PMC5396469  PMID:28435521 
  38. Contemporary transcatheter interventions in adult congenital heart disease. Methodist Debakey Cardiovasc J. 2014;10(2):62. PMCID:PMC4117321  PMID:25114755 
  39. Incidence and management of life-threatening adverse events during cardiac catheterization for congenital heart disease. Pediatr Cardiol. 2014;35(1):140-8. doi:10.1007/s00246-013-0752-y  PMCID:PMC3882522  PMID:23900744 
  40. Closure of patent foramen ovale versus medical therapy after cryptogenic stroke. N Engl J Med. 2013;368(12):1092-100. doi:10.1056/NEJMoa1301440  PMID:23514286 
  41. Transcatheter ventricular septal defect (VSD) creation for restrictive VSD in double-outlet right ventricle. Pediatr Cardiol. 2013;34(3):743-7. doi:10.1007/s00246-012-0337-1  PMCID:PMC3586406  PMID:22580772 
  42. Transcatheter ventricular septal defect creation for restrictive VSD in double outlet right ventricle. Pediatric Cardiol. 2013;34(3):743-7. doi:10.1007/s00246-012-0337-1  PMID:22580772 
  43. Noninvasive detection of transplant coronary artery disease with contrast-enhanced cardiac MRI in pediatric cardiac transplants. J Heart Lung Transplant. 2012;31(11):1234-5. doi:10.1016/j.healun.2012.06.001  PMID:22749830 
  44. Spontaneous echocardiographic contrast associated with portosystemic shunt due to persistent patent ductus venosus. Congenit Heart Dis. 2012;7(3):E18-21. doi:10.1111/j.1747-0803.2011.00587.x  PMID:22129147 
  45. Defect closure in the lipomatous hypertrophied atrial septum with the Amplatzer muscular ventricular septal defect closure device: a case series. Catheter Cardiovasc Interv. 2011;78(1):102-7. doi:10.1002/ccd.22858  PMID:21416575 
  46. Successful subxyphoid hybrid approach for placement of a Melody percutaneous pulmonary valve. Catheter Cardiovasc Interv. 2011;78(1):108-11. doi:10.1002/ccd.22930  PMID:21234917 
  47. Catheterization for congenital heart disease adjustment for risk method (charm) J Am Coll Cardiol Intv. 2011;4(9):1037-46. doi:10.1016/j.jcin.2011.05.021  PMID:21939947 
  48. Procedure-type risk categories for pediatric and congenital cardiac catheterization. Circ Cardiovasc Interv. 2011;4(2):188-94. doi:10.1161/CIRCINTERVENTIONS.110.959262  PMID:21386090 
  49. Transcatheter closures of a postinfarction ventricular septal defect and late ventricular pseudoaneurysm. J Invasive Cardiol. 2010;22(7):E132-7. PMID:20603516 
  50. Adverse Event Rates in Congenital Cardiac Catheterization - A Multi-Center Experience. Catheter Cardiovasc Interv. 2010;3:389. 
  51. Propranolol treatment for hemangioma of infancy: risks and recommendations. Pediatric Dermatology . 2010;3:319. 
  52. Hypoplastic left heart associated with scimitar syndrome. Pediatr Cardiol. 2009;30(7):1037-8. doi:10.1007/s00246-009-9479-1  PMID:19495846 
  53. Multiple coronary artery fistulae treated with a single amplatzer vascular plug: Check the back door when the front is locked. Cathet Cardiovasc Interv . 2009;73(3):390. 
  54. Biventricular assist devices as a bridge to heart transplantation in small children. Circulation. 2008;118(14 Suppl):S89-93. doi:10.1161/CIRCULATIONAHA.107.754002  PMID:18824776 
  55. Percutaneous closure of a complex post-traumatic VSD Cath Cardiovasc Interv. 2008;72(1):408. 
  56. Beyond Berlin: heart transplantation in the "untransplantable". J Thorac Cardiovasc Surg. 2008;136(2):529-31. doi:10.1016/j.jtcvs.2008.01.032  PMID:18692672 
  57. Endovascular stent placement for RV to PA conduit stenosis in the norwood with sano modification. Congenit Heart Dis. 2008;3:185. 
  58. Electrocardiographic diagnosis of myocardial ischemia in children: is a diagnostic electrocardiogram always diagnostic? Pediatrics. 2007;120(2):440-4. doi:10.1542/peds.2007-0170  PMID:17671071 
  59. Surveillance for transplant coronary artery disease in infant, child and adolescent heart transplant recipients: an intravascular ultrasound study. J Heart Lung Transplant. 2006;25(8):921-7. doi:10.1016/j.healun.2006.03.022  PMID:16890112 
  60. Transcatheter closure of perimembraneous ventricular septal defects using the new amplatzer membraneous VSD occluder: Results of the U.S. phase I trial. J Am Coll Cardiol. 2006;47:319. 
  61. Transcatheter closure of large secundum atrial septal defects using the 40 mm Amplatzer septal occluder: results of an international registry. Catheter Cardiovasc Interv. 2005;66(4):580. 
  62. Transcatheter repair of recurrent postinfarct ventricular septal defects. Ann Thorac Surg. 2005;80(5):1907-9. doi:10.1016/j.athoracsur.2004.06.006  PMID:16242481 
  63. Relation of age, severity of illness, and hemodynamics with brain natriuretic peptide levels in patients <20 years of age with heart disease. Am J Cardiol. 2005;96(6):847-50. doi:10.1016/j.amjcard.2005.05.034  PMID:16169375 
  64. Left main stem coronary artery stenting in a 3-month-old child after anomalous left coronary artery from pulmonary artery repair. Ped Cardiol.. 2005;26(5):734. 
  65. Transcatheter occlusion of a large pulmonary avm using the amplatzer vascular plug. Pediatric Cardiology. 2004;26(5):683. 
  66. Device closure of muscular ventricular septal defects using the amplatzer muscular VSD occluder: immediate and mid-term results of a US registry. J Am Coll Cardiol . 2004;43:1257. 
  67. Transcatheter closure of post infarction ventricular septal defects using the new amplatzer muscular VSD occluder: results of a US registry. Catheter Cardiovasc Interv. 2004;61:196. 
  68. Novel use of the Amplatzer duct occluder to close perivalvar leak involving a prosthetic mitral valve. Catheter Cardiovasc Interv. 2004;61(4):548-51. doi:10.1002/ccd.10785  PMID:15065155 
  69. Transcatheter occlusion of baffle leaks following atrial switch procedures for transposition of the great vessels (d-TGV). Catheter Cardiovasc Interv. 2004;61(2):259-63. doi:10.1002/ccd.10740  PMID:14755824 
  70. Radiofrequency perforation in the treatment of acquired left pulmonary artery atresia following repair of tetralogy of Fallot. Catheter Cardiovasc Interv. 2003;60(1):79-81. doi:10.1002/ccd.10605  PMID:12929107 
  71. Transcatheter closure of recurrent postmyocardial infarction ventricular septal defects utilizing the Amplatzer postinfarction VSD device: a case series. Catheter Cardiovasc Interv. 2003;59(2):238-43. doi:10.1002/ccd.10510  PMID:12772250 
  72. Inhaled Nitric Oxide as a Preoperative Test (INOP Test I): the INOP Test Study Group. Circulation. 2002;106(12 Suppl 1):I76-81. PMID:12354713 
  73. Cardiac transplantation for pediatric restrictive cardiomyopathy: presentation, evaluation, and short-term outcome. J Heart Lung Transplant. 2002;21(4):455-9. PMID:11927222 
  74. Lung transplantation for pulmonary vascular disease. Ann Thorac Surg. 2002;73(1):209-17; discussion 217-9. PMID:11834012 
  75. Outcome after diagnosis of moderate-severe transplant coronary artery disease (TCAD) in pediatric heart transplant recipients. J Heart Lung Transplant. 2001;20(2):261. 
  76. Repair of anomalous left main coronary artery arising from the pulmonary artery in infants-long term impact on the mitral valve. Ann Thor Surg 2001;71:1985-1989 Ann Thor Surg. 2001;71:1985. 
  77. Resolution of right heart enlargement after closure of secundum ASD with transcatheter technique. J Am Coll Cardiol. 2001;38(5):1528. 
  78. Long-term prostacyclin infusion to reduce pulmonary hypertension in a pediatric cardiac transplant candidate prior to transplantation. J Heart Lung Transplant. 2001;20:785. 
  79. Echocardiographic predictors of left-to-right shunt in atrial septal defects. J Amer Soc Echo. 2000;13:1038. 
  80. Transplant coronary disease in pediatric heart transplant recipients. J Heart Lung Transplant. 2000;19:240. 
  81. Increased morbidity and high variability of cyclosporine levels in pediatric heart transplant recipients. J Heart Lung Transplant. 2000;19:337. 
  82. Selective coronary angiography in pediatric patients Pediatr Cardiol. 2000;8(3):285. 
  83. Rejection with heart failure after pediatric cardiac transplantation. Ann Thor Surg . 1999;68:176. 
  84. Patterns and potential value of cardiac troponin I elevations after pediatric cardiac operations. Ann Thor Surg. 1998;65:1394. 
  85. Lung retransplantation in children. Ann Thor Surg. 1998;66(1):199. 
  86. Pediatric lung transplantation at St. Louis Children's Hospital Am J Resp Crit Care Med. 1997;155(3):1027. 
  87. Transhepatic venous access for diagnostic and interventional cardiovascular procedures. JVIR. 1996;7:579. 
  88. Utility of surveillance biopsies in infant heart transplant recipients. J Heart Lung Transplant. 1995;14:1095. 
  89. Pediatric endomyocardial biopsy performed solely with echocardiographic guidance. J Am Soc Echocardiog. 1993;6(5):510. 
  90. Endarteritis associated with a clinically silent patent ductus arteriosus. Am Heart J. 1993;125:1192. 
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