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John P. Breinholt, MD

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Phoenix Children's Cardiology
1919 E Thomas Rd, Phoenix, Arizona 85016-7710

About John P. Breinholt, MD

Dr. Breinholt is a Utah native who completed his pediatric and pediatric cardiology training at Texas Children's Hospital in Houston, Texas. He had a clinical and research focus on heart failure and transplantation during his fellowship, then completed advanced training in interventional cardiology at Texas Children's Hospital. Dr. Breinholt has dedicated his career to developing and performing minimally invasive procedures in children with congenital heart disease. He has a specific interest in the closure of ventricular septal defects (VSD) that are frequently closed with surgery, and has focused on the closure of patent ductus arteriosus (PDA) in premature babies as small as 2 pounds to help them progress through that fragile stage of life. He has spoken at national and international medical conferences on performing the PDA procedure, and is now developing a program at Phoenix Children's Hospital.Dr. Breinholt joined Phoenix Children's Hospital in 2019 as the Division Chief of Cardiology and Director of the Cardiac Catheterization Laboratories. Dr. Breinholt speaks Spanish fluently, and actively participates in humanitarian efforts around the world, where he provides heart procedures to underserved children. His efforts have taken him from Uganda to Ukraine, the Philippines, and several countries in Central and South America.
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Education & Training

Medical School / Education

University of Utah School of Medicine


Baylor College of Medicine / Texas Children's Hospital


Baylor College of Medicine / Texas Children's Hospital

Academic Affiliations

Professor, University of Arizona College of Medicine-Phoenix

Research & Publications

Wang-Guiffre, EW, Breinholt JP. Novel Use of the Medtronic Micro Vascular Plug for PDA Closure in Preterm Patients. Catheter Cardiovasc Interv. 2017 May;89(6):1059-1065Parent JJ, Bendaly E, Ross MM, Breinholt JP. Results of Balloon Pulmonary Valvuloplasty Persist and Improve at Late Follow-up in Isolated Pulmonary Valve Stenosis. Cardiol Young. 2017 Oct;27(8):1566-1570Thakkar A, Chinnadurai P, Ramlawi B, Breinholt JP, Monteiro G, Lumsden A, Lin CH. Technique and Utility of CT Angiography Fluoroscopy Image Fusion to Guide Percutaneous Pulmonary Valve Implantation in Adults. J Am Coll Cardiol 2017;69(11):1083Gray R, Menon S, Johnson J, Armstrong A, Bingler M, Breinholt JP, Kenny D, Lozier J, Murphy J, Sathanandam S, Taggart NW, Trucco S, Goldstein BH, Gordon BM. Acute and Mid-Term Results Following Perventricular Device Closure of Muscular Ventricular Septal Defects: A Multicenter PICES Investigation. Catheter Cardiovasc Interv 2017 Aug 1;90(2):281-289.Rhee E, Breinholt JP. Elective Stent Implant in the Obstructed Vertical Vein of Supracardiac Total Anomalous Pulmonary Venous Connection Prior to Operative Repair. Structural Heart Disease. 2017;3(6):176-179Auyang PL, Chinnadurai P, MacGillivray T, Lumsden AB, Breinholt JP, Lin CH. Intraoperative cone beam computed tomography-guided endovascular recanalization of an interrupted aorta. J Vasc Surg. 2018 Apr;67(4):1292-1296Datta I, Breinholt JP. Catheterization and surgical collaboration in the treatment of complex congenital heart disease with discontinuous pulmonary arteries. J Invasive Noninvasive Cardiol. 2018;1(1):6-9Prida S, Brown MD, Breinholt JP. Recanalization of the left pulmonary artery with radio-frequency perforation and stent angioplasty after failed intraoperative stent implant. J Invasive Noninvasive Cardiol. 2018;1(1):14-17.Lubega S, Breinholt JP. Successful embolization of a large pulmonary arteriovenous malformation in a symptomatic teenager from a developing cardiac program. J Invasive Noninvasive Cardiol. 2018;1(1):10-13Thakkar AN, Chinnadurai P, Patel A, Little SH, Breinholt JP, Lumsden A, Lin CH. Transcatheter Closure of a Sinus Venosus Atrial Septal Defect using 3D Printing and Image Fusion Guidance. Catheter Cardiovasc Interv 2018 Aug 1;92(2):353-357Savorgnan F, Zaban N, Ross M, Breinholt JP. No Difference Found in Safety or Efficacy of Balloon Atrial Septostomy Performed at the Bedside versus the Catheterization Laboratory. Cardiol Young. 2018 Dec;28(12):1421-1425Polivenok IV, Molloy FJ, Gilbert CL, Danton M, Dodge-Khatami A, Rao SO, Breinholt JP, Cadarelli M, Penk JS, Novick WM. Results of International Assistance for a Pediatric Heart Surgery Program in a Single Ukrainian Center. Cardiol Young. 2019 March; 29:3 (363-368). doi: 10.1017/S1047951118002457Rojas SC, Thakkar A, Chinnadurai P, Karanja E, Bawa D, Monteiro G, MacGillivray T, Breinholt JP, Lin CH. Transcatheter Embolization of a Persistent Vertical Vein: A Rare Cause of Left-to-Right Shunt and Right-Sided Heart Failure. Methodist DeBakey Cardiovascular Journal. 2019 Jan-Mar; 15:1Breinholt JP, John S. Management of the Adult with Arterial Switch. Methodist Debakey Cardiovasc. 2019 Apr-Jun:15(2):133-137Karahalios B, Breinholt JP, Little SH, Lin CH. Intentional bioprosthetic tricuspid valve fracture to facilitate transcatheter valve-in-valve deployment. Catheter Cardiovasc Interv. 2020 Mar 6