Gareth Morgan, MD
Associate Professor, Pediatrics-Cardiology

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Medical Schools:
  • MB ChB, The Queen's University of Belfast, UK (1999)
  • BAO, The Queen's University of Belfast, UK (1999)
Graduate School :
  • MPhil, Queen's University of Belfast, The (2006)
Internship:
  • Queen's University Faculty of Health Sciences (2000)
Residency:
  • The Royal Victoria Hospital and Royal Belfast Hospital for Sick Children, Pediatric Cardiology (2004)
Fellowships:
  • Hospital for Sick Children, Canada, Pediatric Cardiology (2010)
  • University Hospitals Bristol, Pediatric Cardiology (2008)
Languages: English
Department: Pediatrics-Cardiology

Professional Titles

  • Congenital Interventional Cardiologist

Recognition & Awards

  • Madeleine Steel Fellowship, British Cardiac Society (2008)

Publications

  • Schäfer M, Frank BS, Jacobsen R, Rausch CM, Mitchell MB, Jaggers J, Stone ML, Morgan GJ, Browne LP, Barker AJ, Hunter KS, Ivy DD, Younoszai A, Di Maria MV. Patients with Fontan circulation have abnormal aortic wave propagation patterns: A wave intensity analysis study. Int J Cardiol. 2021 Jan 1;322:158-167. PubMed PMID: 32853667
  • Góreczny S, Haak A, Morgan GJ, Zablah J. Feasibility of airway segmentation from three-dimensional rotational angiography. Cardiol J. 2020 Nov 3. [Epub ahead of print] PubMed PMID: 33140395
  • Frank BS, Khailova L, Silveira L, Mitchell MB, Morgan GJ, Hsieh EWY, DiMaria MV, Twite M, Klawitter J, Davidson JA. Proteomic profiling identifies key differences between inter-stage infants with single ventricle heart disease and healthy controls. Transl Res. 2020 Oct 9. [Epub ahead of print] PubMed PMID: 33045409
  • Shahanavaz S, Aldoss O, Carr K, Gordon B, Seckeler MD, Hiremath G, Seaman C, Zablah J, Morgan G. Acute and medium term results of balloon expandable stent placement in the transverse arch-a multicenter pediatric interventional cardiology early career society study. Catheter Cardiovasc Interv. 2020 Nov;96(6):1277-1286. PubMed PMID: 32902911
  • Sabapathy D, Klawitter J, Silveira L, Khailova L, Mitchell MB, Morgan GJ, DiMaria MV, Twite M, Frank BS, Davidson JA. Activation of kynurenine pathway of tryptophan metabolism after infant cardiac surgery with cardiopulmonary bypass: a prospective cohort study. Metabolomics. 2020 Sep 5;16(9):93. PubMed PMID: 32889608
  • Zablah JE, Morgan GJ. Innovations in Congenital Interventional Cardiology. Pediatr Clin North Am. 2020 Oct;67(5):973-993. PubMed PMID: 32888693
  • Zablah JE, Morgan GJ. Use of Occlutech® atrial flow regulator in a single ventricle patient: a 3D view of a successful intervention. Eur Heart J Cardiovasc Imaging. 2020 Oct 1;21(10):1151. PubMed PMID: 32529256
  • Ehrmann DE, Leopold DK, Phillips R, Shahi N, Campbell K, Ross M, Zablah JE, Moulton SL, Morgan G, Kim JS. The Compensatory Reserve Index Responds to Acute Hemodynamic Changes in Patients with Congenital Heart Disease: A Proof of Concept Study. Pediatr Cardiol. 2020 Aug;41(6):1190-1198. PubMed PMID: 32474738
  • Morgan GJ, Narayan SA, Goreczny S, Chubb H, Krasemann T, Rosenthal E, Qureshi SA. A low threshold for neonatal intervention yields a high rate of biventricular outcomes in pulmonary atresia with intact ventricular septum. Cardiol Young. 2020 May;30(5):649-655. PubMed PMID: 32321616
  • Kenny D, Morgan G, Hijazi ZM. New Horizons for Interventional Cardiology - A Plug for the Future. Pediatr Cardiol. 2020 Mar;41(3):437. PubMed PMID: 32198588
  • Schäfer M, Frank BS, Humphries SM, Hunter KS, Carmody KL, Jacobsen R, Mitchell MB, Jaggers J, Stone ML, Morgan GJ, Barker AJ, Browne LP, Ivy DD, Younoszai A, Di Maria MV. Flow profile characteristics in Fontan circulation are associated with the single ventricle dilation and function: principal component analysis study. Am J Physiol Heart Circ Physiol. 2020 May 1;318(5):H1032-H1040. PubMed PMID: 32167782
  • Griffiths BT, James P, Morgan G, Diamantopoulos A, Durward A, Nyman A. Biodegradable Stents for the Relief of Vascular Bronchial Compression in Children With Left Atrial Enlargement. J Bronchology Interv Pulmonol. 2020 Jul;27(3):200-204. PubMed PMID: 32101914
  • Morgan GJ, Sivakumar K, Promphan W, Goreczny S, Prachasilchai P, Qureshi S. Early clinical experience with the straight design of Venus P-valve™ in dysfunctional right ventricular outflow tracts. Catheter Cardiovasc Interv. 2020 Nov;96(6):E653-E659. PubMed PMID: 32096924
  • Sommer RJ, Love BA, Paolillo JA, Gray RG, Goldstein BH, Morgan GJ, Gillespie MJ. ASSURED clinical study: New GORE® CARDIOFORM ASD occluder for transcatheter closure of atrial septal defect. Catheter Cardiovasc Interv. 2020 Jun 1;95(7):1285-1295. PubMed PMID: 31943749
  • Schäfer M, Browne LP, Jaggers J, Barker AJ, Morgan GJ, Ivy DD, Mitchell MB. Abnormal left ventricular flow organization following repair of tetralogy of Fallot. J Thorac Cardiovasc Surg. 2020 Oct;160(4):1008-1015. PubMed PMID: 31924354
  • Schäfer M, Barker AJ, Morgan GJ, Jaggers J, Stone ML, Browne LP, Ivy DD, Mitchell MB. Increased systolic vorticity in the left ventricular outflow tract is associated with abnormal aortic flow formations in Tetralogy of Fallot. Int J Cardiovasc Imaging. 2020 Apr;36(4):691-700. PubMed PMID: 31907684
  • Frank BS, Schäfer M, Douwes JM, Ivy DD, Abman SH, Davidson JA, Burzlaff S, Mitchell MB, Morgan GJ, Browne LP, Barker AJ, Truong U, von Alvensleben JC. Novel measures of left ventricular electromechanical discoordination predict clinical outcomes in children with pulmonary arterial hypertension. Am J Physiol Heart Circ Physiol. 2020 Feb 1;318(2):H401-H412. PubMed PMID: 31858817
  • Hiremath G, Morgan G, Kenny D, Batlivala SP, Bartakian S. Balloon expandable covered stents as primary therapy for hemodynamically stable traumatic aortic injuries in children. Catheter Cardiovasc Interv. 2019 Nov 9. [Epub ahead of print] PubMed PMID: 31705789
  • Góreczny S, Krings G, Hijazi ZM, Fagan T, Berman D, Kenny D, Morgan GJ. Pros, cons and future perspectives - three questions on three dimensional guidance for cardiac catheterization in congenital heart disease. Postepy Kardiol Interwencyjnej. 2019;15(3):263-273. PubMed PMID: 31592250
  • Schäfer M, Barker AJ, Jaggers J, Morgan GJ, Stone ML, Truong U, Browne LP, Malone L, Ivy DD, Mitchell MB. Abnormal aortic flow conduction is associated with increased viscous energy loss in patients with repaired tetralogy of Fallot. Eur J Cardiothorac Surg. 2019 Sep 18. [Epub ahead of print] PubMed PMID: 31535124
  • Góreczny S, McLennan D, Morgan GJ. Accessing extracorporeal membrane oxygenation circuits to perform emergent interventional cardiac catheterisation. Cardiol Young. 2019 Oct;29(10):1290-1293. PubMed PMID: 31511102
  • Kenny D, Morgan GJ, Murphy M, AlAlwi K, Giugno L, Zablah J, Carminati M, Walsh K. Use of 65 cm large caliber Dryseal sheaths to facilitate delivery of the Edwards SAPIEN valve to dysfunctional right ventricular outflow tracts. Catheter Cardiovasc Interv. 2019 Sep 1;94(3):409-413. PubMed PMID: 31408262
  • McLennan D, Ivy D, Morgan GJ. Transvenous implantation of the Occlutech Atrial Flow Regulator: Preliminary results from swine models. Congenit Heart Dis. 2019 Sep;14(5):819-831. PubMed PMID: 31328339
  • Goreczny S, Hijazi ZM, Qureshi SA, Carminati M, Kenny D, Morgan GJ. Molding the shape of congenial and structural interventional cardiology: interviews with directors of major congresses. Cardiol Young. 2019 Aug;29(8):1009-1015. PubMed PMID: 31244446
  • McLennan D, Góreczny S, Jone PN, Haak A, Morgan GJ. Left ventricular outflow tract pseudoaneurysm occlusion with fusion of live 3-dimensional transesophageal echocardiography and fluoroscopy. Kardiol Pol. 2019 Jun 25;77(6):647-648. PubMed PMID: 31124541
  • Goreczny S, Zablah J, McLennan D, Ross M, Morgan G. Multi-modality imaging for percutaneous pulmonary valve implantation - getting serious about radiation and contrast reduction. Postepy Kardiol Interwencyjnej. 2019;15(1):110-115. PubMed PMID: 31043993
  • McLennan D, Schäfer M, Mitchell MB, Morgan GJ, Ivy D, Barker AJ, Jacobsen R. Usefulness of 4D-Flow MRI in Mapping Flow Distribution Through Failing Fontan Circulation Prior to Cardiac Intervention. Pediatr Cardiol. 2019 Jun;40(5):1093-1096. PubMed PMID: 30982076
  • Schäfer M, Browne LP, von Alvensleben JC, Mitchell MB, Morgan GJ, Ivy DD, Jaggers J. Ventricular interactions and electromechanical dyssynchrony after Ross and Ross-Konno operations. J Thorac Cardiovasc Surg. 2019 Aug;158(2):509-517. PubMed PMID: 30928217
  • Zablah JE, Fry R, Eilers D, Morgan G, Wilson N, Ross M. The Length Versus Diameter Relationship and Radial Force Properties of the Amplatzer™ Vascular Plug Type IV: Observations for Oversizing. Cardiovasc Eng Technol. 2019 Jun;10(2):271-276. PubMed PMID: 30903455
  • Schäfer M, Ivy DD, Abman SH, Stenmark K, Browne LP, Barker AJ, Mitchell MB, Morgan GJ, Wilson N, Shah A, Kollengode M, Naresh N, Fonseca B, DiMaria M, Buckner JK, Hunter KS, Kheyfets V, Fenster BE, Truong U. Differences in pulmonary arterial flow hemodynamics between children and adults with pulmonary arterial hypertension as assessed by 4D-flow CMR studies. Am J Physiol Heart Circ Physiol. 2019 May 1;316(5):H1091-H1104. PubMed PMID: 30822118
  • Jone PN, Haak A, Petri N, Ross M, Morgan G, Wiktor DM, Gill E, Quaife RA, Messenger JC, Salcedo EE, Carroll JD. Echocardiography-Fluoroscopy Fusion Imaging for Guidance of Congenital and Structural Heart Disease Interventions. JACC Cardiovasc Imaging. 2019 Jul;12(7 Pt 1):1279-1282. PubMed PMID: 30660524
  • Schäfer M, Frank BS, Ivy DD, Wilson N, Morgan GJ, Barker AJ, Browne LP, Mitchell MB, Truong U. Close look at the Potts shunt flow hemodynamics in a patient with severe pulmonary hypertension: 4D-flow MRI evaluation. J Magn Reson Imaging. 2019 Jun;49(6):1800-1802. PubMed PMID: 30451346
  • Zablah JE, Morgan GJ. Pulmonary Artery Stenting. Interv Cardiol Clin. 2019 Jan;8(1):33-46. PubMed PMID: 30449420
  • Schäfer M, Frank BS, Ivy DD, Wilson N, Morgan GJ, Barker AJ, Browne LP, Mitchell MB, Truong U. Close look at the Potts shunt flow hemodynamics in a patient with severe pulmonary hypertension: 4D-flow MRI evaluation. J Magn Reson Imaging. 2018 Nov 19. [Epub ahead of print] PubMed PMID: 30451346
  • Schäfer M, Browne LP, Morgan GJ, Barker AJ, Fonseca B, Ivy DD, Mitchell MB. Reduced proximal aortic compliance and elevated wall shear stress after early repair of tetralogy of Fallot. J Thorac Cardiovasc Surg. 2018 Dec;156(6):2239-2249. PubMed PMID: 30449579
  • Zablah JE, Fry R, Ross M, Wilson N, Morgan G. Using in vitro model to assess stent-stent interaction in patients with coronary artery compression. J Interv Cardiol. 2018 Dec;31(6):870-877. PubMed PMID: 30370575
  • McLennan D, Morgan G. Infective Endocarditis, a Rare Complication of Late Neonatal Group B Strep Sepsis. Front Pediatr. 2018;6:274. PubMed PMID: 30338251
  • Morgan GJ. Pulmonary Regurgitation- Is the Future Percutaneous or Surgical?. Front Pediatr. 2018;6:184. PubMed PMID: 30042933
  • Schäfer M, Wilson N, Ivy DD, Ing R, Abman S, Browne LP, Morgan G, Ross M, McLennan D, Barker AJ, Fonseca B, Di Maria M, Hunter KS, Truong U. Noninvasive wave intensity analysis predicts functional worsening in children with pulmonary arterial hypertension. Am J Physiol Heart Circ Physiol. 2018 Oct 1;315(4):H968-H977. PubMed PMID: 30004811
  • Schäfer M, Browne LP, Truong U, Jaggers JJ, Mitchell MB, Malone L, Morgan G, Chatfield K, McLennan D, Turbendian H, Vargas D, Fonseca B, DiMaria M, Shah A, Ivy MP, Barker AJ, Hunter KS, Wilson N, Ivy DD, Campbell DN. Aortic stiffness in adolescent Turner and Marfan syndrome patients. Eur J Cardiothorac Surg. 2018 Nov 1;54(5):926-932. PubMed PMID: 29684119
  • Schäfer M, Morgan GJ, Mitchell MB, Ross M, Barker AJ, Hunter KS, Fonseca B, DiMaria M, Vargas D, Ivy DD, Wilson N, Browne LP. Impact of different coarctation therapies on aortic stiffness: phase-contrast MRI study. Int J Cardiovasc Imaging. 2018 Sep;34(9):1459-1469. PubMed PMID: 29667078
  • Kapravelou E, Anderson D, Morgan GJ. Hybrid Strategy for High-Risk Neonates with Interrupted Aortic Arch: A Can Well Worth Kicking?. Int J Angiol. 2018 Mar;27(1):50-53. PubMed PMID: 29483768
  • Morgan GJ, Ciuffreda M, Spadoni I, DeGiovanni J. Optimus covered stent: Advanced covered stent technology for complex congenital heart disease. Congenit Heart Dis. 2018 May;13(3):458-462. PubMed PMID: 29468813
  • Morgan GJ, Pushparajah K, Narayan S, Rosenthal E. Large Calibre Self-Expanding Stents for Pulmonary Stenosis After the Arterial Switch, a Low-Risk Solution to a Low-Flow Situation. Pediatr Cardiol. 2018 Apr;39(4):824-828. PubMed PMID: 29468351
  • Schäfer M, Browne LP, Morgan GJ, Barker AJ, Fonseca B, Ivy DD, Mitchell MB. Reduced proximal aortic compliance and elevated wall shear stress after early repair of tetralogy of Fallot. J Thorac Cardiovasc Surg. 2018 Dec;156(6):2239-2249. PubMed PMID: 30449579
  • Schäfer M, Truong U, Browne LP, Morgan GJ, Ross M, Ing R, Hunter KS, Kheyfets VO, Abman SH, Ivy DD, Wilson N. Measuring Flow Hemodynamic Indices and Oxygen Consumption in Children with Pulmonary Hypertension: A Comparison of Catheterization and Phase-Contrast MRI. Pediatr Cardiol. 2017 Oct 17. [Epub ahead of print] PubMed PMID: 29043395
  • Crystal MA, Morgan GJ, Danon S, Gray RG, Gruenstein DH, Gordon BM, Goldstein BH. Serial Versus Direct Dilation of Small Diameter Stents Results in a More Predictable and Complete Intentional Transcatheter Stent Fracture: A PICES Bench Testing Study. Pediatr Cardiol. 2017 Oct 4. [Epub ahead of print] PubMed PMID: 28980053
  • Morgan GJ, Kenny D, Duke C, Walsh KP, Qureshi SA. Initial assessment of a novel delivery system (NuDEL™ ®) for the covered Cheatham-Platinum stent. Cardiol Young. 2017 Oct;27(8):1465-1469. PubMed PMID: 28857726
  • Kang SL, Jivanji S, Mehta C, Tometzki AJ, Derrick G, Yates R, Khambadkone S, de Giovanni J, Stumper O, Dhillon R, Bhole V, Slavik Z, Rigby M, Noonan P, Smith B, Knight B, Richens T, Wilson N, Walsh K, James A, Thomson J, Bentham J, Hayes N, Nazir S, Adwani S, Shauq A, Ramaraj R, Duke C, Taliotis D, Kudumula V, Yong SF, Morgan G, Rosenthal E, Krasemann T, Qureshi S, Crossland D, Hermuzi T, Martin RP. Outcome after transcatheter occlusion of patent ductus arteriosus in infants less than 6 kg: A national study from United Kingdom and Ireland. Catheter Cardiovasc Interv. 2017 Aug 11. [Epub ahead of print] PubMed PMID: 28799706
  • Goreczny S, Qureshi SA, Rosenthal E, Krasemann T, Nassar MS, Anderson DR, Morgan GJ. Comparison of self-expandable and balloon-expanding stents for hybrid ductal stenting in hypoplastic left heart complex. Cardiol Young. 2017 Jul;27(5):837-845. PubMed PMID: 28555538
  • Goreczny S, Dryzek P, Morgan GJ, Lukaszewski M, Moll JA, Moszura T. Novel Three-Dimensional Image Fusion Software to Facilitate Guidance of Complex Cardiac Catheterization : 3D image fusion for interventions in CHD. Pediatr Cardiol. 2017 Aug;38(6):1133-1142. PubMed PMID: 28551818
  • Wadia SK, Accavitti MJ Jr, Morgan GJ, Kenny D, Hijazi ZM, Jones TK, Cabalka AK, McElhinney DB, Kavinsky CJ. Transcatheter interventions in adults with congenital heart disease: Surveys from the Society for Cardiovascular Angiography and Interventions to identify current patterns of care and perception on training requirements. Catheter Cardiovasc Interv. 2017 Sep 1;90(3):418-424. PubMed PMID: 28493591
  • Goreczny S, Bedair R, Bilska K, Morgan G. Retrieving a large embolised atrial septal occluder - hooked… and landed. Kardiol Pol. 2017;75(3):277. PubMed PMID: 28326525
  • Góreczny S, Dryzek P, Morgan GJ, Mazurek-Kula A, Moll JJ, Moll JA, Qureshi S, Moszura T. Fenestration closure with Amplatzer Duct Occluder II in patients after total cavo-pulmonary connection. Arch Med Sci. 2017 Mar 1;13(2):337-345. PubMed PMID: 28261286
  • Carmo Mendes I, Heard H, Peacock K, Krasemann T, Morgan GJ. Echocardiographic Versus Angiographic Assessment of Patent Arterial Duct in Percutaneous Closure: Towards X-ray Free Duct Occlusion?. Pediatr Cardiol. 2017 Feb;38(2):302-307. PubMed PMID: 28078384
  • Bali S, Morgan G, Nyman A, Turcu S, Durward A. A case for the therapeutic use of perfluorocarbon in pulmonary atelectasis. Thorax. 2017 May;72(5):478-480. PubMed PMID: 27999169
  • Goreczny S, Moszura T, Dryzek P, Lukaszewski M, Krawczuk A, Moll J, Morgan GJ. Three-dimensional image fusion guidance of percutaneous pulmonary valve implantation to reduce radiation exposure and contrast dose: A comparison with traditional two-dimensional and three-dimensional rotational angiographic guidance. Neth Heart J. 2017 Feb;25(2):91-99. PubMed PMID: 27966187
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Professional Memberships

  • Royal College of Pediatrics and Child Health, Member
  • General Medical Council, Member
  • Medical Protection Society, Member
  • British Congenital Cardiac Association, Member
  • Association of European Pediatric Cardiology, Member
  • Society for Cardiac Angiography and Interventions, Member
  • Pediatric Interventional Cardiology Early Career Society, Member
  • American Heart Association, Member

Practice Locations

UCHealth Adult Congenital Heart Disease - Anschutz
12505 E. 16th Ave
Anschutz Inpatient Pavilion 2, 3rd floor
Aurora, CO 80045
720-848-5300

Children's Hospital Colorado Anschutz Medical Campus
13123 East 16th Ave
Aurora, CO 80045
720-777-1234

Hospital Affiliation
  • University of Colorado Hospital
  • Children's Hospital Colorado

Specialty Information

Specialties
  • Pediatric Cardiology
  • Cardiology
Conditions & Treatments
  • Heart and Circulation - Adult Congenital Heart Disease
  • Heart and Circulation
  • Heart and Circulation - Congenital Heart Disease
  • Heart and Circulation - Interventional Cardiology
  • Heart and Circulation - Heart Valve Diseases
Clinical Interests
Treatment of congenital heart disease by minimally invasive procedures (cardiac catheterization)

Care Philosophy
Integrated approach to congenital heart disease combining fetal pediatric and adult congenital heart disease.

Public Speaking
Yes
Innovations in percutaneous treatment of congenital heart disease. Improving transition of care from pediatric to adult congenital services.

General Information

Medical Schools:
  • MB ChB, The Queen's University of Belfast, UK (1999)
  • BAO, The Queen's University of Belfast, UK (1999)
Graduate Schools:
  • MPhil, Queen's University of Belfast, The (2006)
Internships:
  • Queen's University Faculty of Health Sciences (2000)
Residency Programs:
  • The Royal Victoria Hospital and Royal Belfast Hospital for Sick Children, Pediatric Cardiology (2004)
Fellowships:
  • Hospital for Sick Children, Canada, Pediatric Cardiology (2010)
  • University Hospitals Bristol, Pediatric Cardiology (2008)
Languages: English
Department: Pediatrics-Cardiology
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