Gareth Morgan, MD

Professional Titles

• Congenital Interventional Cardiologist

Recognitions

• Madeleine Steel Fellowship, British Cardiac Society (2008)

Publications

• 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
• 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
• 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
• 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
• 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
• McLennan D, Morgan G. Infective Endocarditis, a Rare Complication of Late Neonatal Group B Strep Sepsis. Front Pediatr. 2018;6:274. PubMed PMID: 30338251
• 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
• Morgan GJ. Pulmonary Regurgitation- Is the Future Percutaneous or Surgical?. Front Pediatr. 2018;6:184. PubMed PMID: 30042933
• 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
• 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
• 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
• 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, Morgan GJ. Pulmonary Artery Stenting. Interv Cardiol Clin. 2019 Jan;8(1):33-46. PubMed PMID: 30449420
• 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
• 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
• 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
• O'Callaghan B, Shepherd E, Taliotis D, Bentham J, Kenny D, Smith B, Franco SR, Morgan GJ. Validating a risk assessment tool in United Kingdom and Irish paediatric cardiac catheterisation practice. Cardiol Young. 2021 Oct 14;:1-8. [Epub ahead of print] PubMed PMID: 34645531
• Ivy MP, Morgan GJ, Zablah JE. The Unusual Journey of a Pericardial Drainage Catheter in Pentalogy of Cantrell. Case Rep Pediatr. 2021;2021:2109934. PubMed PMID: 34306788
• Zablah JE, Rodriguez SA, Leahy R, Morgan GJ. Implementation of virtual reality for patient distraction during diagnostic cardiac catheterisation. Cardiol Young. 2021 Jul 26;:1-5. [Epub ahead of print] PubMed PMID: 34304747
• Wilkinson D, Lin Y, Everett M, Auerbach S, Morgan G, Mitchell MB. Coronary Artery Reimplantation and Berlin Heart EXCOR Rescue for Left Coronary Artery Atresia With Severe Ischemic Cardiomyopathy. World J Pediatr Congenit Heart Surg. 2021 Nov;12(6):793-795. PubMed PMID: 34264154
• Zablah JE, O'Callaghan B, Shorofsky M, Morgan GJ. How to obtain diagnostic and procedural quality three-dimensional-rotational angiograms in congenital heart disease: Tips and tricks from a single center experience. Cardiol J. 2021;28(5):779-782. PubMed PMID: 34165184
• Morgan GJ, Rodriguez SA, Leahy R, Randall J, Zablah JE. Baseline intracardiac echocardiography predicts haemodynamic changes and Doppler velocity patterns during follow-up after percutaneous pulmonary valve implantation. Cardiol Young. 2021 Jun 18;:1-7. [Epub ahead of print] PubMed PMID: 34140059
• Schäfer M, Ivy DD, Nguyen K, Boncella K, Frank BS, Morgan GJ, Miller-Reed K, Truong U, Colvin K, Yeager ME. Metalloproteinases and their inhibitors are associated with pulmonary arterial stiffness and ventricular function in pediatric pulmonary hypertension. Am J Physiol Heart Circ Physiol. 2021 Jul 1;321(1):H242-H252. PubMed PMID: 34085841
• Rodriguez SA, Morgan GJ, Lara C, Zablah JE. Baseline Values of the Compensatory Reserve Index in a Healthy Pediatric Population. Pediatr Cardiol. 2021 Sep 29. [Epub ahead of print] PubMed PMID: 34586457
• O'Callaghan B, Zablah J, Leahy R, Shorofsky M, Kay J, Morgan G. Contrast-free percutaneous pulmonary valve replacement: a safe approach for valve-in-valve procedures. Postepy Kardiol Interwencyjnej. 2021 Jun;17(2):200-209. PubMed PMID: 34400923
• Schäfer M, Frank BS, Ivy DD, Abman SH, Stenmark KR, Mitchell MB, Browne LP, Barker AJ, Hunter KS, Kheyfets V, Miller-Reed K, Ing R, Morgan GJ, Truong U. Short-Term Effects of Inhaled Nitric Oxide on Right Ventricular Flow Hemodynamics by 4-Dimensional-Flow Magnetic Resonance Imaging in Children With Pulmonary Arterial Hypertension. J Am Heart Assoc. 2021 Apr 20;10(8):e020548. PubMed PMID: 33821682
• Zablah JE, Rodriguez SA, Leahy R, Morgan GJ. Novel Minimal Radiation Approach for Percutaneous Pulmonary Valve Implantation. Pediatr Cardiol. 2021 Apr;42(4):926-933. PubMed PMID: 33590323
• Zablah JE, O'Callaghan B, Shorofsky M, Ivy D, Morgan GJ. Technical Feasibility on the Use of Optical Coherence Tomography in the Evaluation of Pediatric Pulmonary Venous Stenosis. Pediatr Cardiol. 2022 Jan 17. [Epub ahead of print] PubMed PMID: 35037988
• Góreczny S, Morgan GJ, McLennan D, Rehman R, Zablah JE. Comparison of fusion imaging and two-dimensional angiography for guidance of percutaneous pulmonary vein interventions. Kardiol Pol. 2021 Dec 31. [Epub ahead of print] PubMed PMID: 34970983
• 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, Zablah J. A new FDA approved stent for congenital heart disease: First-in-man experiences with G-ARMOR(TM). Catheter Cardiovasc Interv. 2022 Nov 2. [Epub ahead of print] PubMed PMID: 36321626
• Malone LJ, Browne LP, Morgan GJ, Lovell MA, Campbell DN, Jaggers JJ, Leahy RA, Mitchell MB, Mong DA, Weinman JP, Zablah JE, Stone ML. Computed Tomographic Angiography Provides Reliable Coronary Artery Evaluation in Infants With Pulmonary Atresia Intact Ventricular Septum. Semin Thorac Cardiovasc Surg. 2022 Oct 14. [Epub ahead of print] PubMed PMID: 36244628
• Zablah JE, Døhlen G, Ystgaard MB, Morgan GJ. Piggyback mounting for stent and valve deployment during percutaneous pulmonary valve implantation. Catheter Cardiovasc Interv. 2022 Oct;100(4):606-611. PubMed PMID: 36047314
• Shorofsky MJ, Zablah JE, O'Callaghan B, Morgan GJ. Simultaneous deployment of a covered stent and a Sapien S3 as a bridge to surgical valve replacement in acute infective endocarditis. J Cardiol Cases. 2022 Apr;25(4):229-233. PubMed PMID: 35911065
• Callahan R, McGovern E, Nageotte SJ, Ligon RA Jr, Morgan GJ, Johnston TA, Marshall AC. Pediatric and Congenital Interventional Cardiology Training: The North American Landscape in 2022. JACC Cardiovasc Interv. 2022 Jul 25;15(14):1480-1485. PubMed PMID: 35863799
• McLennan D, Schäfer M, Barker AJ, Mitchell MB, Ing RJ, Browne LP, Ivy DD, Morgan GJ. Abnormal flow conduction through pulmonary arteries is associated with right ventricular volume and function in patients with repaired tetralogy of Fallot: does flow quality affect afterload?. Eur Radiol. 2022 Jul 19. [Epub ahead of print] PubMed PMID: 35852579
• Venardos N, Mangham C, Morgan GJ, Zablah JE, Jaggers J, Stone ML. Two-Stage Biventricular Repair of Complex Aortic Atresia. Ann Thorac Surg. 2022 Apr 2. [Epub ahead of print] PubMed PMID: 35378089
• Frank BS, Khailova L, Silveira L, Mitchell MB, Morgan GJ, DiMaria MV, Davidson JA. Increased Circulating Endothelin 1 Is Associated With Postoperative Hypoxemia in Infants With Single-Ventricle Heart Disease Undergoing Superior Cavopulmonary Anastomosis. J Am Heart Assoc. 2022 Mar 15;11(6):e024007. PubMed PMID: 35243904
• Zablah JE, O'Callaghan B, Shorofsky M, Ivy D, Morgan GJ. Technical Feasibility on the Use of Optical Coherence Tomography in the Evaluation of Pediatric Pulmonary Venous Stenosis. Pediatr Cardiol. 2022 Jun;43(5):1054-1063. PubMed PMID: 35037988
• Góreczny S, Morgan GJ, McLennan D, Rehman R, Zablah JE. Comparison of fusion imaging and two-dimensional angiography to guide percutaneous pulmonary vein interventions. Kardiol Pol. 2022;80(4):476-478. PubMed PMID: 34970983
• Frank BS, Nandy D, Khailova L, Mitchell MB, Morgan GJ, Twite M, DiMaria MV, Davidson JA. Circulating biomarkers of extracellular matrix dysregulation are associated with adverse post-stage 2 outcomes in infants with single ventricle heart disease. Sci Rep. 2023 Sep 28;13(1):16318. PubMed PMID: 37770592
• Minocha PK, Caputo M, Ramroop R, Morgan GJ. Use of the Occlutech pmVSD Device for Hybrid Closure of a Large Mid-Muscular Ventricular Septal Defect in a Small Infant Born With Hypoplastic Aortic Arch. World J Pediatr Congenit Heart Surg. 2023 Sep 26;:21501351231181107. [Epub ahead of print] PubMed PMID: 37750506
• Minen F, Durward A, James P, Diamantopoulos A, Jogeesvaran H, Morgan GJ, Nyman A. Single-center review on safety of biodegradable airway stenting in pediatric population. Pediatr Pulmonol. 2023 Sep 20. [Epub ahead of print] PubMed PMID: 37728230
• Mejia E, Soszyn N, Morgan GJ, Leahy RA. Radiofrequency Perforation of an Atretic Pulmonary Valve with a Modified Coronary Wire and Electrocautery Pencil. Pediatr Cardiol. 2023 Aug 22. [Epub ahead of print] PubMed PMID: 37606651
• Mejia E, McLennan D, Zablah J, Soszyn N, Shibbani K, Morgan GJ. Establishing Carotid Seldinger as Routine Access in Infants; Planning, Performance, and Follow-Up Protocols. Pediatr Cardiol. 2023 Dec;44(8):1815-1820. PubMed PMID: 37603081
• Mejia E, Cummer E, Morgan GJ, Buckvold S, Mitchell M, Leahy RA, Zablah JE. Percutaneous VA-ECMO from Cannulation to Decannulation: Novel Use of a Vascular Closure Device in Pediatrics. Pediatr Cardiol. 2023 Oct;44(7):1623-1628. PubMed PMID: 37418147
• Zablah JE, Soszyn N, Morgan GJ. Staged Acclimatization in a Failing Fontan by AFR in AFR: Ever-Decreasing Circles. JACC Case Rep. 2023 Jun 21;16:101868. PubMed PMID: 37396327
• Soszyn N, Leahy R, Morgan GJ. The novel use of an advanced thrombectomy system to manage a complex pericardial effusion associated with kaposiform lymphangiomatosis. Cardiol Young. 2023 Sep;33(9):1760-1762. PubMed PMID: 36999364
• Frank BS, Khailova L, Dekermanjian J, Mitchell MB, Morgan GJ, Twite M, Christians U, DiMaria MV, Klawitter J, Davidson JA. Interstage Single Ventricle Heart Disease Infants Show Dysregulation in Multiple Metabolic Pathways: Targeted Metabolomics Analysis. JACC Adv. 2023 Jan;2(1). PubMed PMID: 36875009
• Soszyn N, Morgan GJ, Kim JS, Zablah JE. Case Report: Catheter-based mechanical thrombectomy using the Indigo aspiration system in a case of systemic-to-pulmonary shunt thrombosis. Front Pediatr. 2023;11:1114044. PubMed PMID: 36776906
• Shorofsky MJ, Morgan GJ, Mejia E, Rodriguez SA, Greene M, Sheaks P, Ivy D, Zablah JE. Management of Complex Pulmonary Vein Stenosis at Altitude Combining Comprehensive Percutaneous Interventional Treatment with Sirolimus, Pulmonary Hypertension Medications and Intraluminal Imaging with Optical Coherence Tomography. Pediatr Cardiol. 2023 Jun;44(5):1125-1134. PubMed PMID: 36723625
• Morgan GJ, Zablah J. A new FDA approved stent for congenital heart disease: First-in-man experiences with G-ARMOR(TM). Catheter Cardiovasc Interv. 2022 Dec;100(7):1261-1266. PubMed PMID: 36321626
• Malone LJ, Browne LP, Morgan GJ, Lovell MA, Campbell DN, Jaggers JJ, Leahy RA, Mitchell MB, Mong DA, Weinman JP, Zablah JE, Stone ML. Computed Tomographic Angiography Provides Reliable Coronary Artery Evaluation in Infants With Pulmonary Atresia Intact Ventricular Septum. Semin Thorac Cardiovasc Surg. 2022 Oct 14. [Epub ahead of print] PubMed PMID: 36244628
• Zablah JE, Døhlen G, Ystgaard MB, Morgan GJ. Piggyback mounting for stent and valve deployment during percutaneous pulmonary valve implantation. Catheter Cardiovasc Interv. 2022 Oct;100(4):606-611. PubMed PMID: 36047314
• Maia PD, Gien J, Kinsella JP, Zablah J, Morgan G, Ivy DD, Abman SH, Frank BS. Hemodynamic Characterization of Neonates With Congenital Diaphragmatic Hernia-Associated Pulmonary Hypertension by Cardiac Catheterization. J Pediatr. 2023 Apr;255:230-235.e2. PubMed PMID: 36463937
• O'Callaghan B, Zablah JE, Weinman JP, Englund EK, Morgan GJ, Ivy DD, Frank BS, Mong DA, Malone LJ, Browne LP. Computed tomographic parenchymal lung findings in premature infants with pulmonary vein stenosis. Pediatr Radiol. 2023 Aug;53(9):1874-1884. PubMed PMID: 37106091
• 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
• Dimas VV, Babaliaros V, Kim D, Lim DS, Morgan G, Jones TK, Armstrong AK, Berman D, Aboulhosn J, Mahadevan VS, Gillespie MJ, Balzer D, Zellers T, Yu X, Shirali G, Parthiban A, Leipsic J, Blanke P, Zahn E, Shahanavaz S. Multicenter Pivotal Study of the Alterra Adaptive Prestent for the Treatment of Pulmonary Regurgitation. JACC Cardiovasc Interv. 2024 Oct 14;17(19):2287-2297. PubMed PMID: 39415386
• Soszyn N, Shorofsky M, Franco SR, Zablah JE, Morgan GJ. Corrigendum to 'Computed tomography-derived normative values and z-scores of the pulmonary valve annulus and sino-tubular junction in the pediatric population' [J Cardiovasc Comput Tomogr 18 (2024) 489-493]. J Cardiovasc Comput Tomogr. 2024 Oct 14. [Epub ahead of print] PubMed PMID: 39401934
• Simpkin CT, McElroy BJ, Morgan GJ, Dunbar Ivy D, Burkett DA, Twite MD, Frank BS. Impact of general anesthesia on the echocardiographic assessment of right ventricular function in pediatric patients with pulmonary arterial hypertension. Pulm Circ. 2024 Jul;14(3):e12435. PubMed PMID: 39308941
• Qureshi AM, Sommer RJ, Morgan G, Paolillo JA, Gray RG, Love B, Goldstein BH, Sugeng L, Gillespie MJ. Long-Term Results of the Atrial Septal Defect Occluder ASSURED Trial for Combined Pivotal/Continued Access Cohorts. JACC Cardiovasc Interv. 2024 Oct 14;17(19):2274-2283. PubMed PMID: 39297855
• Mejia E, Leahy RA, Zablah JE, Morgan GJ. Using a customized telescoped stent complex in the percutaneous treatment of a residual superior sinus venosus defect. Catheter Cardiovasc Interv. 2024 Nov;104(5):999-1002. PubMed PMID: 39146514
• Kilgallon KB, Leroue M, Shankman S, Shea T, Buckvold S, Mitchell M, Morgan G, Zablah J, Maddux AB. Extubated, Rehabilitation-Focused Extracorporeal Membrane Oxygenation for Pediatric Coronavirus Disease 2019: A Case Series. ASAIO J. 2024 Jul 25. [Epub ahead of print] PubMed PMID: 39052889
• Soszyn N, Shorofsky M, Franco SR, Zablah JE, Morgan GJ. Computed tomography-derived normative values and z-scores of the pulmonary valve annulus and sino-tubular junction in the pediatric population. J Cardiovasc Comput Tomogr. 2024 Sep-Oct;18(5):489-493. PubMed PMID: 39043495
• Baruteau AE, Malekzadeh-Milani S, Kenny D, Hascoët S, Karsenty C, Houeijeh A, Karakachoff M, Sivakumar K, Morgan GJ, Fraisse A. Atrial Flow Regulator Implantation for Interatrial Shunt Patency in 12 Infants = 5 kg: A Pilot Study. Can J Cardiol. 2024 Jun 22. [Epub ahead of print] PubMed PMID: 38914271
• Mejia E, Morgan GJ, Stone M, Shorofsky MJ, Jaggers J, Zablah JE. Advanced Imaging Guidance for Ductus Venosus Stenting in Obstructed Total Anomalous Pulmonary Venous Return. World J Pediatr Congenit Heart Surg. 2024 Sep;15(5):664-667. PubMed PMID: 38751076
• Frank BS, Niemiec S, Khailova L, Mancuso CA, Lehmann T, Mitchell MB, Morgan GJ, Twite M, DiMaria MV, Klawitter J, Davidson JA. Arginine-NO metabolites are associated with morbidity in single ventricle infants undergoing stage 2 palliation. Pediatr Res. 2024 Jul;96(2):347-355. PubMed PMID: 38565916
• Soszyn N, Schweigert J, Franco SR, Morgan GJ, Mitchell M, Zablah JE. Computed Tomography-Derived Normative Values of Right Ventricular Outflow Tract Structures in the Pediatric Population. Pediatr Cardiol. 2024 Mar 19. [Epub ahead of print] PubMed PMID: 38502199
• Zablah JE, Than J, Browne LP, Rodriguez S, Morgan GJ. Patient Screening for Self-Expanding Percutaneous Pulmonary Valves Using Virtual Reality. J Am Heart Assoc. 2024 Mar 19;13(6):e033239. PubMed PMID: 38456473
• Vargas-Acevedo C, Mejia E, Zablah JE, Morgan GJ. Fusion imaging for guidance of pulmonary arteriovenous malformation embolisation with minimal radiation and contrast exposure. Cardiol Young. 2024 Jul;34(7):1451-1455. PubMed PMID: 38425313
• Sola M, Kay J, Messenger J, Zablah J, Soszyn N, Morgan G. Transcatheter closure of a large coronary cameral fistula presenting as a calcified cystic right atrial mass. Catheter Cardiovasc Interv. 2024 Mar;103(4):607-611. PubMed PMID: 38415912
• Thomson LM, Mancuso CA, Wolfe KR, Khailova L, Niemiec S, Ali E, DiMaria M, Mitchell M, Twite M, Morgan G, Frank BS, Davidson JA. The proteomic fingerprint in infants with single ventricle heart disease in the interstage period: evidence of chronic inflammation and widespread activation of biological networks. Front Pediatr. 2023;11:1308700. PubMed PMID: 38143535
• Kobayashi D, Amin EK, Morgan GJ, Reddy SRV, Fleming GA, Forbes TJ, Nykanen DG. Usefulness of PREDIC(3)T Case Type Risk Category in the CRISP Registry. Am J Cardiol. 2024 Feb 1;212:73-79. PubMed PMID: 38040279
• Mejia E, Cole J, Soszyn N, Auerbach S, Morgan GJ. Percutaneous Stenting of a Stenotic Berlin Heart Outflow Cannula Graft in a 2-Year-Old Child. ASAIO J. 2024 Aug 1;70(8):e110-e112. PubMed PMID: 38039507
• Reynolds KP, Jone PN, Morgan GJ, Zablah JE. Fontan Fenestration Reduction with an Occlutech Atrial Flow Regulator: Unique Views from Three-Dimensional Intracardiac Echocardiography. Pediatr Cardiol. 2024 Jan;45(1):213-215. PubMed PMID: 37930376
• Gonzalez de Alba C, Zablah JE, Burkett D, Jone PN, Rodriguez SA, Morgan GJ. Use of Three-Dimensional Intracardiac Echocardiography Catheter in the Evaluation of Prosthetic Pulmonary Valves after Transcatheter Replacement. J Am Soc Echocardiogr. 2024 Feb;37(2):226-236. PubMed PMID: 37839619
• Frank BS, Nandy D, Khailova L, Mitchell MB, Morgan GJ, Twite M, DiMaria MV, Davidson JA. Circulating biomarkers of extracellular matrix dysregulation are associated with adverse post-stage 2 outcomes in infants with single ventricle heart disease. Sci Rep. 2023 Sep 28;13(1):16318. PubMed PMID: 37770592
• Minocha PK, Caputo M, Ramroop R, Morgan GJ. Use of the Occlutech pmVSD Device for Hybrid Closure of a Large Mid-Muscular Ventricular Septal Defect in a Small Infant Born With Hypoplastic Aortic Arch. World J Pediatr Congenit Heart Surg. 2024 Jan;15(1):109-111. PubMed PMID: 37750506
• Minen F, Durward A, James P, Diamantopoulos A, Jogeesvaran H, Morgan GJ, Nyman A. Single-center review on safety of biodegradable airway stenting in pediatric population. Pediatr Pulmonol. 2023 Dec;58(12):3437-3446. PubMed PMID: 37728230

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
• Adult Congenital Heart Disease

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